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A
" I knew I picked good one when he walked through my door. It was quite obvious he knew his business. He was very professional, meticulous, and neat. He even paid" me a compliment because I was well prepared with all supplies needed for the job. He also returned all excess wiring. I will definitely use the company again.

-Lisa P.

A
"They were very friendly and efficient, and they explained what needed to be done to me, such that I was able to learn something in the process. Price was very reasonable." I would definitely use them again.

-Alan M.

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Local Articles in Baltimore

Hiring an Electrician

Good electricians require extensive training and continuing education to keep up with constantly changing technology. Your residential electrical contractor provides an important service to keep your home running safely and smoothly, so you want to hire the best possible person. Read this Homeowner's Guide to Hiring an Electrician to learn more before you hire.

Common Electrical Problems

Although the potential dangers of electrocution and fire should make most homeowners wary of do-it-yourself electrical projects, there are some basic electric troubleshooting tips that can help when you are experiencing issues.

ambient lighting
Lighting, Interior Design & Decorating, Electrical

People often underestimate and overlook lighting when planning a space.

Kitchens offer an abundance of lighting choices that can add aesthetic appeal. (Photo courtesy of Angie's List member Tim S. of  Atlanta)
Lighting, Electrical

On this episode of the Chat with the Experts podcast, Chuck Hill of Mister Sparky explains lighting options for your home and answers electrical questions.

outlets installed on kitchen counter
Interior Design & Decorating, Electrical

Homes are often constructed with just the minimum required amount of outlets for each area.

firefighter at controlled burn in Indianapolis
Remodeling - General, Electrical, Chimney Sweep

Thirty seconds is the length of most television commercials. It’s also the length of time it takes for a fire to get out of control in your home.

Angie's Answers

?
Unless you feel uncomfortable doing minor repairs or don't understand that you should turn the electicity OFF before doing such installations...you can do the job yourself with a screwdriver and needle nose pliars...within 15 minutes. 5-10 minutes if you've done it before.
?

This can be maddening. Over the past 40+ years, in 4 houses, I have had or have run across this problem from gas meter leakage, water well pump column vibration, doorbell transformer, circulating pump, an extremely small (mist spray) water pipe leak, flourescent and sodium lights, security system horn dead battery, gas meter leaking slightly, bees in wall, bat colony, electric typewriter left on, stereo left on very low, and speaker inductive hum.

This seems to be a popular and recurrent question, so I am going to give the long answer for use by future questioners too.

I am assuming you do not hear this noise away from your house, or that other family members can hear it to. Obviously, if you hear it elsewhere also and other family members cannot hear it, then maybe you have tinninitus or are hearing your own high blood pressure blood flow (seriously). This commonly gets more acute at night when it is quiet, so all you are hearing is your internal ear sounds. I had this happen once because of a middle ear blockage - drove me crazy, getting up in the middle of the night because I thought I heard a water leak through the walls. Try putting on a pair of earmuffs or hearing protectors - if you still hear it or hear it louder, this is probably the case.

One method if hum is on the clearly audible side is make a 2 foot long cone out of paper to hold against your ear - like an antique hearing horn - then in each room face each of 4 directions while listening for where sound is the loudest, and turn your head to pinpoint the exact direction - I would spend 10 minutes doing this before getting into detailed stethoscope listening.

Otherwise, sounds like time for the old stethoscope (about $12 at a drug store - get a metal soundhead one, not cheap plastic, which does not pick up vibration as well). Also, if you are older (say over 35 or so) your hearing might have started to deteriorated with age, so if you have children or grandchildren with sharp hearing, they might be able to help track it down. I am sure a young child or grandchild, if you have one, would love this sort of treasure hunt (with appropriate "treasure" for a reward for tracking it down). 

Being careful not to come in contact with electricity with the stethoscope, check all the likely sources listed below. Start by placing it against pipes and walls and floor in each room of the house - water sourced noise goes a long ways, and tends to reverberate in the walls, so if that is the source likely to hear pretty easy. Hold stethoscope against bare pipes, both hot and cold, and heating system radiators or hot air vents.

If listening to water and hot water heating pipes indicates it is not water sourced, then you could turn off the master (outside) breaker or all the inside breakers and see if it goes away. I would only do this during above-freezing weather and early on a weekday, just in case a breaker fails to turn back on correctly when you switch it. Older master breakers particularly, which typically have never been used, sometimes break or fail to reclose properly after being shut off, so then have to be replaced. You want to be doing this at a time of day when, if necessary, you could get an electrician in the same day to replace it without paying weekend or nighttime emergency call rates.

If turning off the master breaker (or all other breakers) eliminates the hum, then turn them on one at a time until you find the one that turns the hum back on, then track where that circuit likely feeds (hopefully it is labelled) and check every switch, outlet, and light fixture.

Humming sources include (not in any particular order, a + in front means likely or common source of humming, - means rare or not likely):

1) + toilet fill valve - slightly leaking toilet inlet valve (listen where water tubing comes into toilet tank, and look inside tank to see if there is any water flow into or ripppling of the water in the tank or the bowl, or from the bowl filling tube (usually a small black plastic flexible tube which comes out of the fill valve (usually far left side of tank) and is clipped onto and discharges down into a hollow vertical brass or plastic tube or pipe in the toilet tank, which refills the toilet bowl after you flush)

2) + leaking faucet - kitchen, tub, shower, sink, utility tub, etc - it is amazing how just the smallest valve leak can make a hum or hiss that you can hear through the walls (especially at night), but only drips every few seconds.

3) - electric service meter dial motor

4) - electric breaker panel - rarely, a loose main power feed to a panel (especially with aluminum main service wire) will get loose enough that it vibrates back and forth and hums in its connector. A loose bus or snap-in breaker slot cover plate in the panel can also do this rarely

5) - gas meter or overpressure vent (unlikely, as you have had it replaced)

6) + boiling in the bottom of hot water heater or boiler because of buildup of lime, but would usually be intermittent - only when unit is heating

7) + furnace fan or electrostatic filter (forced air heat), or circulating pump (hot water baseboard heating), or steam condensate pump or overpressure venting (steam system).

8) - gas control valve or electric control box on a gas furnace, or its transformer (most have a 120V to 24, 16 or 12V transformer inside the front of the furnace

9) + air filter or electrostatic filter alarm on forced air furnace - some have a passive "whistle" opening that sounds softly when the filter is getting blocked, and if blocked with dust could make a hum rather than a whistle.

10) + Some water softener systems also have an "alarm" device to tell you it is time to service the unit, so check that if you have such a unit.

11) - a slightly leaking overpressure/overtemp valve on hot water heater or furnace (would be dripping)

12) - air venting from the air vents on hot water heating system. These will commonly make a hum or wheeze sound, for only for a few seconds at a time - not continuous unless leaking water

13) - city water system booster pump sound through the water column (if there is one near your home) - listen at the incoming water pipe - if much louder there than at other pipes within the house, that could be a house, though unlikely. If you think this could be it, find your water shutoff valve (typically 10' into your lawn from the street) and listen there. Would also be audible at neighbor's service pipe if that is the source.

14) - gas system compressor sound coming through gas pipe - listen to gas pipe outside the house and inside the house near furnace - if louder outside,, this could be a possible source, but the compressor or pressure reducer would have to be near your house. Would also be audible at neighbor's service pipe if that is the source.

15) + auxiliary booster circulating pump in your hot water or steam heating system (there may be one separate from the furnace, likely in the basement or a utility closet - most commonly found on  multi-unit apartment building with central heating and in 3 story or higher buildings, but you never know)

16) + a water leak, either inside or a leaking hose bib or pipe, or in your service pipe coming to the house

17) - electric on-demand water heater or electric-powered water filtration unit under the kitchen sink or inthe basement

18) + refrigerator compressor or fan hum

19) + doorbell transformer (front or back door - transformer is usually NOT at the doorbell, it is usually mounted in an open space like nailed to a basement joist, in an entry closet, or in the cubby space under the stairs - always physically near to the door, but NOT always on the same floor)

20) - any instant-on device like a TV

21) + any audio device (stereo, iPod, music player dock, computer, etc) that may have been left on at very low volume. Also, VERY rarely, if stereo or external speaker wires are run close to and parallel with an electric wire in the wall, they will acquire an  inductive voltage and hum.

22) + anything with a transformer, including stereo, add-on computer or iPod speakers, battery charger (rechargeable batteries or spare car battery or rider mower or boat battery charger), any portable electriconic device. Also portable device chargers (computer, iPod, cell phone, etc) - even if the device is not plugged into the transformer, as long as the transformer (charger) if plugged into an outlet, it is transforming high to low voltage, and transformers commonly hum

23) - electric typewriter left running

24) - electric ultrasonic cleaner or denture cleaner or electric toothbrush left on 

25) - home hair drying hood left on

26) - a lint buildup-jammed bathroom, kitchen, or attic fan. Many of these have, for safety, so called "self limiting" motors that if they jam just sit there and hum, but do not burn out.

27) - an attic cooling fan whose thermostat has failed, so is on all the time

28) - electronic furnace thermostat

29) + air conditioning unit, or aquxiliary air conditioner evaporator

30) + humidifier / dehumidifier - either permanently installed or portable

31) + portable heater / fan / air purifier

32) - automatic animal feeder waterer - either water supply or electric, as applicable

33) - dishwasher motor runningcontinuously - not shutting down after end of cycle

34) - convective or direct-vent oven or cooktop exhaust fan not shutting off

35) + flourescent (tube or CFL) or sodium or halogen light bulb / ballast hum (either inside, outside front door fixtures, or public street lights). These can hum quite pesistently when the starter circuit sticks on, or the bulb is dying and will not start (light completely), so the started circuit tries continually to start the lamp - can make a hum audible up to a block away on street lights.

36) - a dying electronic photocell designed to turn on your outside lights

37) - home security system, especially its alarm or horn. If the alarm is sounding but for some reason the main power is not getting to it, then as the battery goes dead (or if full voltage is not getting to it) is can give off a squeek, hum, or rasping sound - ditto if insects like wasps or hornets build a nest in it, so it cannot sound correctly.

38) + well pump, pressure tank, or filtration system, if you are on a well

39) + insect or bat nest in the attic or walls or in outside bins or cupboards, electric panel/meter, or outside telephone connection box (bees /wasps / hornets most likely) - though this usually varies by time of day, although it would "pulse" at the time of day when they are waking up or going to sleep.

40) + carpenter ants or termites - their continuous chewing of the wood can sound like a hum till you get right up against the colony, then you can actually hear the chewing

41) - a regional hum, as has been occurring at times in Ohio, Wisconsin, and Arkansas - where micro-seismic activity causes a hum or booming sound. Google or call your local paper and see if anyone has been reporting this in your area.

42) + outdoor power service transformer - either a metal (typically army green or gray) about 1 foot diameter "can" mounted on a power pole if you have overhead service, or a 2-3 foot cubic metal box on the ground or in a manhole pit near the street if you have underground service, which usually serves 4-6 houses (so may be in a neighbor's yard) and will have a voltage rating marked on it, usually in yellow stick-on lettering - like 4160V - 220V. Usually has high voltage - keep away safety markings on it.

43) - you have found where the Caddyshack gopher (who hummed to himself) moved to after Bill Murray blew up his happy home at the golf course.

Hope this list helps you (and future users with the same question).

?

As I understand it, you are looking at putting in a fan where there is no ceiling electric outlet. Since I am not sure, will try to break out piece by piece, undersanding these wouyld all be lumped into one job (possibly excluding wiring new outlet and switch). I hate to be so general, but access is the key here - if access is easy and there is a suitable light switch in the same room, cost can be at the low end of this range. If assess is poor and you don't want holes knocked in your drywall, then get more expensive real fast.

1) cost of fan typically $125-250 unless high end model

2) remove existing regular 4" box, install supports to joists and new box (ceiling fans need specially supported boxes due to the extra weight and swaying motion of the fans) $50-75

3) tap electric from existing circuit at existing box, upgrade existing light switch box to add one or two more switches (Adjustable for fan speed, 2nd for light, if so equipped), run wiring to ceiling fixture $125-250

4) put up fan, connect, test $75-100

So - total About $250-425 with no box there now, plus cost of fixture. A simple install to replace an existing fan, or install where the ceiling box was wired for a fan, would be only about $75-100.

This all assumes the existing nearby electric circuit can handle the addition of the fan - if not, then wiring cost will go up. It also assumes there is access via open attic or joists to install the wiring. Otherwise, installation cost OK but does NOT include repair to holes in drywall or ceiling to pull wiring.

Note also that an existing ceiling light box would probably NOT fill the bill - code in almost all jurisdictions requires 12 ga wire for fan motors, most household circuits are 14 or 16 gauge, so would need new wire pulled from a circuit with adequate capacity.

Get bids ! I worked on one job where the owner in a high-end house decided to put in fans with fancy candeliers underneath after construction was done - cost almost $3000 to do installation because all the wall and ceilings were finished in a high-end finish, so all wire pulling had to be done remotely - including removing siding to put in pull boxes at changes of direction and fasten conduit to studs. PLAN AHEAD !

 

?

Click on the Home > Electrical link right below your question - you will find a number of questions like yours with answers about panel and service upgrades, and factors which affect cost.

I would get a couple of opinions from electricians on the general panel upgrade issue, unless you want to do that anyway for general upgrade purposes. If you are upgrading the main panel from 100 to 200A, then yes you have to upgrade to AFCI and GFCI breakers (as applicable) as part of the process. 

However, if all you want to do it install power for the electric HVAC system, then it may be a lot cheaper to just upgrade the outside service capacity if necessary, and then install a dedicated secondary dedicated panel for HVAC system use, without touching the existing main breaker panel. Could make a 2 or 3:1 difference in cost, depending on your current situation.

?

An electrician can help you calculate your needs.  If you want everything to run as normal while on the generator you will need a fairly large setup.  Add the amperages of every device and appliance you expect to use while on the generator including the refrigerator, freezer, HVAC (all components), TV and accessories, lights, etc.  Wattage (which is how generators are measured in terms of output) is calculated as Volts x Amps = Watts.  So a 120v appliance using 15 amps requires 1800 watts.  A 240v appliance using 30 amps (like an electric water heater) requires 7200 watts.  Don't forget to calculate starting amps, not just running amps.  Appliances with motors and compressors require more power at startup than they do once running.

 

A simpler way to cheat/estimate your need is to count up the breakers in the main panel of your home.  All single pole breakers are multiplied by 120 while the double pole breakers are counted together and multiplied by 240.  While this method will give you a rough idea of what you need it may not account for all of your useage.  Most people don't hook up standby generators to the entire house.  Instead, they have an electrician selectivly wire which circuits are powered on the standby switch.  Then when the power goes out and the generator comes on only the essential devices are running.  This saves money on the generator as a smaller one can be used as well as on the fuel used to run a smaller generator versus a larger setup.

 

Most typical homes have a 100, 200, or even 3-400 amp service panels and meters.  If you want to run everything consider a generator that matches your existing service from the power company.  A 200 amp, 220v service is 44,000 watts.  That is your maximum available draw but it doesn't mean you really use that much.  Most people don't.

?

If you already have a fixture there, around $100 plus or minus about $30 if not over 7 or 30 pounds, or about $200-300 if weighs over about 7 or 30 pounds. The 7 or 30 pound ranges are dependent on whether the existing box is plastic or a standard Square-D type or equivalent metal one, because each type of box can only hold so much weight. If existing box is rated 70 pounds or more (ceiling fan or large chandelier rated) then the $100 range should do it regardless.

 

I am assuming when you say mini-pendants you meant from a single box if more than one. If you meant two separate by some feet, add probably about $100 more to add a second box, ASSUMING they will both be run off the same single switch.

 

IF you do NOT have a light fixture there now, then can run from $150-300 range if there is easy access from above (open attic) to $500 or more if has to tear into drywall to install wiring and box so you then have to get drywall contractor and painter in to repair the damages.

Electrician reviews in Baltimore

D

Rating
They gave me the run around about scheduling and it seems that it was just one thing after another. They would continuously not call if they were running late and just not show up at all. One or the times that they had to reschedule, they did not even make sure I was okay with the scheduled date, they just re-scheduled it and told me the day. The office and administrative aspect of this company seems to have it together and works well, but as far as scheduling and professionalism, I was not pleased.
- Anthony F.
C

Rating
He came and installed a flush mount fan on my sloped ceiling. I was unhappy because it was tolted. I did not see the finished product until I got home from work. I asked my husband why he didn't mention the tilt. He thought that was how it was supposed to be. I called
Baltimore  Electricians Provider Name Locked
...he said he thought that was what I wanted. I asked him to come fix the issue and he did not want to . He was going to charge me to take down and put another fan thst is made for a sloped ceiling. I argued he should have mentioned my new fan was fuss mount and my ceiling was sloped. He knew before he installed it. So he made me wait another month, but he finally came and replaced the fan with one made for sloped ceiling. I had to pay $65 for him to put the new flush mount fan in my bedroom. I had everything switched and fixed, but now the fan in my bedroom rattles and shakes badly when spinning at a medium or high speed. I am hesitant to call
Baltimore  Electricians Provider Name Locked
at
Baltimore  Electricians Provider Name Locked
because he can be moody and fistant. He seems to have the impression some folks are looking for free hand outs...But that is not me. I just want quality work done correctly. I work very hard for my money It all worked out, but my bedroom fan is not functioning well.
- Pamela S.
F

Rating
NO Show 3 Times.
I had to call them each time. After the 3rd no show they wont return any calls or messages. DO NOT CONTRACT WITH THEM I purchased the Bid Deal for 2 hours of electrical work. they were a no show 3 times in a row and then refused to respond by phone or email after the last no show on
Baltimore  Electricians Provider Name Locked
13th. During the initial scheduling and after the first no show I spoke with
Baltimore  Electricians Provider Name Locked
. After the second no show I spoke with
Baltimore  Electricians Provider Name Locked
.
Baltimore  Electricians Provider Name Locked
offered a refund but I asked for the work to be done as long as I didn't waste another days worth of leave time. Should have taken the refund as the no showed again. I would not trust to ever engage with hiring them within Angies List or on your own as you can not trust what they say. I had to have Angies list credit my account for the $99.
- Ryan F.
C

Rating
I called to schedule this service for later in the week. The woman who handled my call was nice & professional but would not give me any prices over the phone. She explained that the electrician would give me the cost on site and regardless if I have any work done, there would be a $60 fee just to show up. I was in a time crunch so I scheduled anyway....More /> The electrician
Baltimore  Electricians Provider Name Locked
showed up within his time window and was professional. He also put shoe covers on while in my house and cleaned up all of the mess.
My issue is mainly with the cost. The cost he quoted me for everything I thought was extremely expensive. $150 to hang a ceiling fan in a room that already had a fan pre wire was a little high. The bigger issue I had was with the cost to install an automatic light switch to control my outside lights. These lights were 2 pole which means he had to change the wiring on both ends and install the switch. He charged $99 x 2 to change the wiring on both ends plus $99 to install the switch. He wanted to charge me another $99 to program the switch since he said it would take almost an hr. I ended up programing the switch myself in 10 minutes. Almost $300 to install an auto light switch is ridiculous and that did not even include programming.
I also asked him to give me a price on installing 1 outside security light that I had bought and he told me it would be $600. I did not do that b/c that cost is even
Baltimore  Electricians Provider Name Locked
than what I was charged for the auto switch.
Installation was fine but will not use them again b/c of their high cost and $60 service fee which many other electricians do not charge if you use them.


- David R.
A

Rating
The installation went quite well. I knew that the $49 charge wouldn't cover the electrical box that needed
Baltimore  Electricians Provider Name Locked
installed with the fan. The electrician did his work quickly and efficiently, and he was easy to work with. I would recommend
Baltimore  Electricians Provider Name Locked
Elextric to anyone needing home electrical work.
- George H.
C

Rating
My job wasn't standard, so the owner had to come and look it over to give me an augmented estimate for the work I actually needed. He came and looked at the job and gave me an estimate that was roughly a thousand dollars more than the deal price, which wasn't unreasonable in light of the variation. The estimate he gave was also in line with another estimate I had received the prior year. I accepted and we arranged a time for him to start the work he came over that morning, and I left him to it. A couple of hours later, he called me at my office and said he couldn't do the job for the estimated price, and was leaving. He did not offer any further explanation. He was good about making sure I got my money refunded promptly, which is why the Company gets a C rather than a D. Nonetheless, either he low-balled the estimate or didn't do a good job looking the work over when he wrote it. Either way, since we agreed on and signed a contract, he should have bitten the bullet and done the job for the estimated price. On the plus side, at least he didn't do the work and demand more money for finishing it.
- Lloyd S.
A

Rating
Job was relatively
Baltimore  Electricians Provider Name Locked
to replace outlets. We have an older home so he told us we needed a GFCI on each outlet since they didn't have a ground. We had at least one outlet in each room, however, that did have a ground so we were confused, but deferred to their expertise (they theorized the other circuits were done to take air units since we don't have central air).



Work was done in 1.5 hrs, and the GFCI circuits cost $20 each for material costs. All in all, work was done well. They don't do patching so some of the outlets have some exposure around the edges since the replacement didn't match up to the hole size.



I'd use them again, but likely not before I do another
Baltimore  Electricians Provider Name Locked
to see if
Baltimore  Electricians Provider Name Locked
service calls like this can be done for lower cost. If we

would have known an electrician ("I've got a guy"), work like this would have likely been way cheaper ($13 per GFCI on Amazon and $100-$150 directly to your electrician and we could have gotten away for a bit less).



Responsive on the phone, easy to work with, and very professional. They are more service call based, so any more substantial work with re-wiring or remodels, you'll have to look elsewhere.
- Paul K.
A

Rating
Baltimore  Electricians Provider Name Locked
was great. He was very personable, and arrived exactly as scheduled. He did the work professionally and as asked. I'd definitely hire this company again.
- Janice L.

Electricians in Baltimore

Companies below are listed in alphabetical order. To view top rated service providers along with reviews and ratings, Join Angie's List Now!

1st class handyman

portship rd
Dundalk

1~866~PLUMBER

406 Tollgate Road

2 Griffins Design and Build, Inc

27421 Clarksburg Rd
Damascus

21st Century Fireplace Services LLC

8226 Elberta Dr
Ellicott City

21st Century Power Solutions Maryland

418 Oella Ave
Catonsville

3 PHASE ELECTRICAL SVC

2015 MOUNTAIN RD
Joppa

@home electric

11408 Cronridge Drive
Owings Mills

A & J ELECTRIC INC

9623 PHILADELPHIA RD
Rosedale

A & J Home Remodeling

3212 South 13th Rd

A & M ELECTRIC LLC

4119 N POINT RD
Dundalk

A - One Electric Company

1250 Birchcrest Court
Arnold

A C POWER INC

12 N Carey St
Baltimore

A J Deluca Contractors Inc

1932-B Liberty Rd
Sykesville

A M & Son Electric Inc

2300 York Rd
Lutherville Timonium

A PLUS OAKS INC

1308 E CHURCHVILLE RD
Bel Air

A Real Electric Inc

21010 Soutbank St

A Stegmeier

4103 Roanoke Rd
Hyattsville

A to Z Contracting

685 203rd St
Pasadena

A to Z Remodeling

7118 Cold Spring Ct

A&O Electric

1316 Dorsey Rd
Hanover

A-Z Home Enhancements, Inc.

503 Cedarwood Ct
Bel Air

A. M. P. Electric, INC

1615 Robin Cir. suite A-1
Forest Hill

A.M. Builders

11962 Queen St
Fulton

A2Z Wiring

9190 Red Branch Rd
Columbia

AAD Mechanical

P.O. Box 543
Pasadena

AAVISE Design, LLC

3351 Corridor Marketplace #400-23
Laurel

ABB INC

707 TOBACCO RUN DR
Bel Air

ABC ELECTRIC

4159 RUPP RD
Manchester

ABERDEEN ELECTRICAL SVC

831 GILBERT RD
Aberdeen

ABLE CONSTRUCTION SERVICES

9120 GORMAN RD
Laurel

Able Contracting

14 Wellham Ave NW
Glen Burnie

Able Electrical Services Inc

217 Thelma Ave
Glen Burnie

ABSOLUTE UNDERGROUND INC

1234 Old Dorsey Rd
Harmans

AC Remodeling Inc

4 Goodport Ln
Gaithersburg

Access Global Technologies, Inc.

10300 Appalachian Cir Apt 209

ACE APPLIANCE

514 PULASKI HWY
Joppa

Ace Controls Inc.

2128 Lorraine Ave
Baltimore

Ace Deck & Fence

1001 N Fillmore St

Ace Electric Service LLC

309 Wilmer Pl
Edgewater

ACORN RENOVATIONS

1030 ASHE ST
Davidsonville

ACTION ELECTRICAL CONTRACTORS

1050 HARDEES DR
Aberdeen

ACTION ELECTRICAL CONTRACTORS

2828 E MEDICAL HALL RD
Churchville

ADAM SERVICE CO INC

1802 DULANEY VALLEY RD
Lutherville Timonium

Adams Electrical Services LLC

7807 Outing Avenue
Pasadena

Advance Network Technology

12085 Sand Hill Manor Dr
Marriottsville

ADVANCED CABLING TECHNOLGIES

3445 GAMBER RD
Finksburg

ADVANCED ELECTRICAL SOLUTION

8895 Papillon Dr
Ellicott City

ADVANCED ELECTRICAL TECHS INC

365 MAE RD
Glen Burnie

ADVANCED POWER CONTROL INC

2151 Priest Bridge Dr Ste 41
Crofton

ADVANCED POWER TECH

400 REISTERSTOWN RD
Pikesville

Advanced Solar Technologies

10487 Carberry Ct
White Plains

ADVANCED TANK SYSTEMS INC

1415 BUSH ST
Baltimore

ADVANCED VIDEO SYSTEMS INC

11447 Cronhill Dr
Owings Mills

ADVANTAGE SIGN SUPPLY

303 Ashcake Rd

Advent Energy LLC

2909 Preston Lane
Abingdon

AERO MIST INC

1313 ALDINO STEPNEY RD
Aberdeen

AERUS ELECTROLUX

10132 BALTIMORE NATL PIKE G
Ellicott City

AERUS ELECTROLUX

3523 FORT MEADE RD
Laurel

AES BUILDER & HOME IMPROVEMENTS

6915 GOLDEN RING RD
Rosedale

AET INC

365 MAE RD
Glen Burnie

AFFORDABLE ELECTRIC

204 N HAMMONDS FERRY RD
Linthicum Heights

Affordable Electrical Services

4712 kenwood ave
Baltimore

Affordable Home Services

3664 Benson Ave
Halethorpe

Affordable Kitchens

1301 Enterprise Court
Bel Air

AFTERGLOW ELECTRIC CO

18 COURT DR
Joppa

AFTERGLOW LIGHTING INC

1321 MERCEDES DR
Hanover

AGIS SYSTEMS

20 PLEASANT RIDGE DR
Owings Mills

AIR SYSTEMS INC

806A BARKWOOD CRT
Linthicum Heights

AJ Michaels

4512 York Rd
Baltimore

Ak Electronics

452A Shadyhill In
Millersville

AL BRUNO GENERAL & ELECTRICAL

8820 FEARNE AVE
Parkville

AL GLEESON ELECTRICAL CO INC

9090 WHISKEY BOTTOM RD
Laurel

Alarm Company of Maryland

2909 Dillon st
Baltimore

ALASON ELECTRIC

412 HEADQUARTERS DR
Millersville

Alex's Electrical Service

12804 Golden Oak Dr
Laurel

ALEXANDER ELECTRIC

466 NEW DAM RD

Alexander Technical Resources

1263 Glenwood Ave. SE

Alger Electric

15 Mt Wilson Ln
Pikesville

ALL AMERICAN ELECTRIC

2907 SOUTHHAVEN DR
Annapolis

ALL CLEAR COMMUNICATIONS SVC

16001 DARK HOLLOW RD
Hampstead

All Fused Out LLC

3 Hartman Ave
Essex

All Interiors Repair Contractor, Inc.

1614 Elligson Rd
Rosedale

All Pro Solar Services

1045 Taylor Ave
Towson

All Trades Building and Construction LLC

PO Box 765 Fort Meade
Hanover

All-Power Plus Electric Inc

6067 Adcock Ln
Hanover

ALLEN N WALPERT & SON INC

2804 HAMPDEN AVE
Baltimore

ALLIED TRADING INC

10555 GUILFORD RD
Jessup

Allied-Phillips, Inc.

2403 Old Mountain Road Central
Joppa

ALVIN L JONES

1000 W 41ST ST
Baltimore

AM ELECTRIC INC

13123 CABINWOOD DR
Silver Spring

Ambassador Services Inc

10330 S Dolfield Rd
Owings Mills

America's Best Home Improvement

9244 E. Hampton Dr.
Capitol Heights

American Bath Inc

PO Box 10477
Silver Spring

AMERICAN CONSTRUCTION SERVICES

10602 Guilford Road
Jessup

American Contracting Services Inc

1620 Providence Rd
Towson

American Deck Inc

115 Mt Carmel Road
Parkton

AMERICAN ELECTRIC CO

42 HUDSON ST
Annapolis

AMERICAN ELECTRIC CONTROL

14608 TRIADELPHIA RD
Glenelg

AMERICAN HOME SERVICES

34 Shining Willow Way
La Plata

American Home Specialists

13221 Mockingbird ln
Bowie

American Kitchen Concepts, Inc

9150 Rumsey Rd
Columbia

American Mold & Restoration

3540 Crain Hwy
Bowie

AMERICAN MOTOR FUELS INC

301 LANDINGS CT
Churchville

AMERICAN RESTORATIONS

3731 JESICA TRACE

American TV & Appliance of Nottingham

7902 Belair Rd
Nottingham

Anchor Contracting, Inc

767 Shore Dr
Joppa

ANCHOR ELECTRIC INC

34 Oak Ct
Annapolis

ANDREWS ELECTRIC CO

12201 WOODSBORO PIKE
Keymar

Annapolis Electrical Services Inc

42 Hudson St
Annapolis

Anthony Mechanical & Electrical, LLC

938 Holy Cross Rd
Street

APPLIANCE REPAIR

8 POMONA N
Pikesville

APPLIANCE REPAIR OF BALTIMORE

400 REISTERSTOWN RD
Pikesville

APPLIED MECHANICAL SVC

118 MYRTLE AVE
Severn

Applied Power Solutions Inc

12260 Rte 108
Clarksville

Archangel Remodeling

642 Wayward Dr
Annapolis

ARCHIT

PO BOX 208
Finksburg

Arco Painting & Remodeling LLC

14405 Innsbruck Court
Silver Spring

ARDENT HOME MORTGAGE INC

2331 YORK RD
Lutherville Timonium

Arkay Electric

3801 Justin Rd
Monkton

ARRIBA MECHANICAL CO INC

3210 ECHODALE AVE
Baltimore

Artisan Construction Inc

1610 S Shore Pkwy
Pasadena

ARTWORKS INC

2103 TRED AVON RD
Essex

Arundel Cooling Heating & Electrical Co Inc

707 Nursery Rd
Linthicum Heights

ARUNDEL ELECTRICAL SVC INC

2031 SHORE DR
Edgewater

ARUNDEL TV & VIDEO

1144 RIVERVIEW DR
Annapolis

Ashford Kirby Inc

438 Girard Street
Gaithersburg

ASHLEY'S ELECTRIC

252 SEVERN RD
Millersville

ASHTON ELECTRIC CO

6900 HARFORD RD
Parkville

Aspect Contracting

7823 Wilson Ave
Parkville

Aspen Electric Inc

1827 Park Beach Dr
Aberdeen

ATECH Electrical Contractor LLC

8411 Philadelphia Road
Rosedale

Atlantic Acquisitions, LLC

53 Odeon Ct
Parkville

ATLANTIC CONSTRUCTION SVC

200 E Lexington St Ste 907
Baltimore

ATLANTIC ELECTRICAL INC

12440 OWINGS MILLS BLVD
Reisterstown

Atlantic Home Improvement

1052 Hampton Dr.
Crownsville

ATX TELECOMM MD-DP

1007 SKIDMORE DR
Annapolis

AUER ELECTRIC INC

4238 KLEIN AVE
Nottingham

Auto Stop Limited, Inc.

520 East 25th Street
Baltimore

AV Carpenters LLC.

6 Tarfside Court
Gaithersburg

AVA ELECTRIC

220 E LEXINGTON ST
Baltimore

AVidea LLC

Owings Mills

AXTEC ELECTRIC SVC INC

697 STATE ROUTE 3 N
Gambrills

AZTEC ELECTRIC SVC INC

697 STATE ROUTE 3 N
Gambrills

B & D Construction

1702 S Charles St
Baltimore

B & T ELECTRICAL SVC INC

3970 RUSTIN DR
Hampstead

B J KIRKWOOD & CO

7202 BELAIR RD
Baltimore

B LIPMAN & ASSOC INC

326 E 25TH ST
Baltimore

B&W Home Improvements

PO Box 1542
Columbia

Bailey & Shipp Electric

2822 Solomons Island Rd
Edgewater

BALDOR ELECTRIC CO

6660 SANTA BARBARA RD
Elkridge

BALDWIN LINE CONSTRUCTION CO

6365 HOWARD LN
Elkridge

Baldwin Remodeling LLC

2234 Hidden Retreat Trl
Huntingtown

Baltimore Design Build, LLC

7942 St Monica Dr
Dundalk

BALTIMORE SEARCHLIGHT SVC

9911 BELAIR RD
Kingsville

BALTO GAS & ELECTRIC

HERALD HARBOR RD
Crownsville

BARCO ELECTRIC INC

1945 RUNNING BROOK DR
Westminster

Barry's Capentry

5515 Heming Ave.

Basement Masters

1680 E Gude Dr
Rockville

Basement solutions

7602 Beaver Rd
Glen Burnie

BATHREBUILDERS

2146 Priest Bridge Ct Ste 1
Crofton

BATTERY SHOP OF MD INC

PO BOX 828
Finksburg

Bausum & Duckett Electric LLC

3481 Pike Ridge Rd
Edgewater

BAY ARE MECHANICAL SVC

7501 OLD TELEGRAPH RD
Hanover

Bay Kitchens

8555 Pulaski Hwy
Rosedale

Bayern team

5599 REISTERSTOWN RD
Baltimore

Bayside Electric Co

101 Bodan Rd
Millersville

BB&E Contractors LLC

246 N Mount St
Baltimore

Bear Rock Electric Inc

Corporate Offices in Mt Airy, MD and
Mount Airy

Beautiful Home Services

18909 Fisher Ave
Poolesville

Beautiful Kitchens and Bath

2015 Chaneyville Rd
Owings

BEBBER ELECTRIC

3749 DAVIS CORNER RD
Street

BEC ELECTRICAL CONTRACTORS

76 E MAIN ST
Westminster

BEE ELECTRIC INC

PO Box 972
Abingdon

BEEVER ENGINEERING & CONSTR

1119 HIGH COUNTRY RD
Towson

BELFIELD ELECTRIC CO INC

6615 SANTA BARBARA RD
Elkridge

Bellanca Handyman Services

755 Melville Ave
Baltimore

BELTONE HEARING AID CTR

8025 RITCHIE HWY
Pasadena

BELTWAY ELECTRICAL SVC

932 UPPER PINDELL RD
Lothian

BENFIELD ELECTRIC CO

9515 Gerwig Ln Ste 102
Columbia

Benfield Electric Co Inc

400 Hickory Dr
Aberdeen

Bentz Electric

11215 Georgia Ave Apt 608
Silver Spring

Berith Builders

13074 Langley Rd
Bryantown

Bernard's

Baltimore

BEST ELECTRICAL

108 Hanson Ct
Chester

BEST MOTOR WORKS

3529 ANNAPOLIS RD
Halethorpe

BEST QUALITY ELECTRIC LLC

1123 HOLMESPUN DR
Pasadena

Best Value Property Solutions Inc

15900 Sherwood Ave
Laurel

Best Way Electric

PO Box 5143
Laurel

Bethesda Systems

4712 Rosedale Ave
Bethesda

BETTS ELECTRICAL CONTRACTING

209 COCKEYSVILLE RD
Cockeysville

Bexar Maintenance Supply

1275 Red Bluff Rd.

BGE Home

1409 Tangier Dr
Middle River

BILT-RITE CONTRACTORS INC

1833 York Rd
Lutherville Timonium

Biskup Electric LLC

1856 Bramble Brook Ln
Bel Air

BLACK & ASSOC INC

15210 PRICEVILLE RD
Sparks Glencoe

Blair Construction LLC

301 Najoles Rd
Millersville

Blair Contracting Co Inc

PO Box 304
Brookeville

Blue Dot Services - 8554

125 Industry Ln
Forest Hill

Blue Jay Electric Inc

6064 Augustine Ave
Elkridge

Blue River Pool Services LLC

1705 Cosner Rd
Forest Hill

BLUEFORD ELECTRIC

8550 BEACON POINT RD
Pasadena

BMC PAINTING, INC

11439 MONTERREY DR
Silver Spring

Bmore Green LLC

8203 Thornton Rd
Towson

BNC INTEGRATED SOLUTIONS

PO BOX 471
Upper Marlboro

BOATER'S WORLD MARINE CTR

522 RITCHIE HWY
Severna Park

Bob Booth Remodeling

410 Barnes St
Bel Air

Bob Grill General Contractor Inc

9817 Lanham Severn Rd
Lanham

BOMARK ELECTRIC

838 S Main St
Hampstead

BOPAT ELECTRIC

9160 Rumsey Rd Ste B5
Columbia

Bossom & Son Electric Inc.

763 212th St
Pasadena

Bottom Line Remodeling

2909 Stockton Rd
Phoenix

Bowen Remodeling and Design

2146 Priest Bridge Ct Ste 2
Crofton

Bowie Shell

15651 Annapolis Rd
Bowie

Bowlin Home Improvements, LLC

7004 Contee Road
Laurel

Bowman construction

3613 croydon rd
Gwynn Oak

boyer electric

2801 7th st
Sparrows Point

BPS Electric

1950 Keysville Bruceville Rd
Keymar

Brad Ferrone

6203 Fair Oaks ave.
Baltimore

Brad4Cad LLC

5657 Utrecht Rd
Baltimore

BRADLEY ELECTRO SALES

9130 RED BRANCH RD
Columbia

BRANCH ELECTRIC

1717 WHITEHEAD RD
Gwynn Oak

BRAY & SCARFF KITCHEN WORKS

6435 DOBBIN RD
Columbia

BRAY ELECTRIC INC

823 FREDERICK RD
Catonsville

BRETCO

7647 BUSH AVE
Pasadena

BRICKFRONT PROPERTIES LLC

7409 QUAIL RIDGE LANE
Bowie

Brightricity, LLC

4413 Norwood Rd
Baltimore

BROOKS ELECTRIC

11 LONGVIEW DR

BROWN & HEIM INC

3620 COMMERCE DR
Halethorpe

BROWN TISDALE INC

5201 WALTHER AVE
Baltimore

BRUCE P MURDOCK INC

3114 MORNINGSIDE CT
Baldwin

BRUCE P MURDOCK INC

28 THOMAS AVE
Brooklyn

Brucksch and Sons Contracting, LLC

1617 Kimber Rd
Glen Burnie

BRUNO'S ELECTRICAL SVC INC

6502 Hamlet Ct
Sykesville

Buck Electric

19 Bangert Avenue
Perry Hall

BUCK ELECTRIC CO INC

19 Bangert Ave
Perry Hall

BUDD ELECTRICAL SVC

5201 HAMILTON AVE
Baltimore

Budget Bath

2160 East Joppa
Baltimore

BUDGET ELECTRIC INC

115 E.Churchville Rd
Bel Air

BUILDER'S ELECTRIC SVC

8399 MURPHY RD
Fulton

Burke Construction Company

903 Baltimore Pike
Bel Air

Byfield Electric, INC

PO Box 11330
Baltimore

BYRNES ELECTRIC INC

1302 ENTERPRISE CT
Bel Air

C & C MARINE

7022 FORT SMALLWOOD RD
Curtis Bay

C & D TECHNOLOGIES INC

2107 EMMORTON PARK RD
Edgewood

C & H MECHANICAL CORP

8229 CLOVERLEAF DR
Millersville

C & K ELECTRIC CO

7910 BROCK BRIDGE RD
Jessup

C Brown Properties

PO Box 47181
Windsor Mill

C E WRIGHT MECHANICAL INC

127 Bald Eagle Dr

C M ELECTRICAL SVC INC

162 MABLE LN
Severna Park

C T ELECTRICAL CORP INC

2500 COXSHIRE LN
Davidsonville

C T SMITH ELECTRICAL SVC

2238 CAPE HORN RD
Hampstead

C W WRIGHT CONSTRUCTION CO INC

9750 Doctor Perry Rd
Ijamsville

C&R Electric

899 Airport Park Rd
Glen Burnie

C. S. Electric

304 Crestview Court
Westminster

C.D. Williams Electric Co. LLC

120 Second St.
Laurel

Cabinet Discounters Inc

9500 Berger Rd
Columbia

Cabinet Restoration Company LLC

4223 Hanover Pike
Manchester

Cable Connexions LLC

2201 Eastern Blvd.
Baltimore

CABLE CONSTRUCTORS INC

2108 EMMORTON PARK RD
Edgewood

CABLE TELECOMMUNICATIONS ASSOC

2530 RIVA RD
Annapolis

CABLE TV OF CARROLL COUNTY

1327 WASHINGTON RD
Westminster

Caliber Home Restoration

100 Oak Drive
Catonsville

CALMI ELECTRICAL CO

220 N FRANKLINTOWN RD
Baltimore

Calvin Generator

3161 Burgess Mill Way
Ellicott City

CAMPBELL MECHANICAL

4505 LEEDS AVE
Baltimore

Candore Electric

1318 Chesapeake Dr
Churchton

CAPITAL LIGHTING & SUPPLY INC

600 W HAMBURG ST
Baltimore

CAPITAL VACUUM & SEWING CENTER

2116 FOREST DR
Annapolis

Capitol Boiler Works

7921 Woodruff Ct

Capitol Electrical Solutions

11347 Nevets Pl
Monrovia

CAPITOL PRISON SYSTEMS INC

8100 STANSBURY RD
Dundalk

CAPSTONE CONSTRUCTION OF MARYLAND

6488 Cornwall Dr.
Eldersburg

Carlos Gomez

3612 Freeport Ct

CARNEY ELECTRIC INC

9850 HARFORD RD
Parkville

Carney Tire and Car Care Ctr

8743 Satyr Hill Rd
Parkville

CARROLL LANDSCAPING INC

PO BOX 333
Randallstown

CarterWorx LLC

9915 Snowden Rd
Laurel

CARTRIDGE WORLD

880 Edgeworth Ct

CARTRIDGE WORLD

330 140 Village Rd Ste 14
Westminster

Case Design Remodeling Inc

4701 Sangamore Rd
Bethesda

CASPER G SIPPEL INC

7408 BELAIR RD
Nottingham

CAUDILL LUMINATIONS

914 SAINT MICHAEL DR
Gambrills

CCD Home Improvement

7803 Old Litchfield Ln
Ellicott City

CCL POWERS INC

1654 CROFTON BLVD
Crofton

CDS Emergency Power & CDS Electric

1225 Bengies Rd
Middle River

Ceccio Electric

9666 Dundawan Rd

CECO INC

6770 Oak Hall Ln
Columbia

CENTEX ELECTRIC INC

3500 CORN STREAM RD
Randallstown

Central Construction Contracting LLC

1310 Rogers Rd
Annapolis

CENTRAL MOTOR CO

1608A BEL AIR RD
Bel Air

Certified Electrical Technologies

7879 Cessna Ave
Gaithersburg

Certified Electrical Technologies

7879 Cessna Ave
Columbia

CES Heating, Cooling and Electrical

2508 Mountain Rd
Pasadena

CFL Practice

6701 N Charles St
Towson

CGH Electric

1237 Thompson Ave
Severn

CGI Home Solution LLC

21800 Towne Center Pl

CHARLES C TAYLOR III ELEC CONT

165 DEFENSE HWY
Annapolis

CHARLES E NORRIS

PO BOX 51
Lutherville Timonium

CHASNEY & CO INC

5808 YORK RD
Baltimore

ches-tech,inc.

4900 wetheredsville rd

Chesapeake Design & Build

PO Box 706
Severna Park

CHESAPEAKE ELECTRIC

402 FORD ST.
Aberdeen

Chesapeake Electrical Services, LLC

6 Broadleaf Ct.
Baltimore

CHESAPEAKE TECHNICAL INC

4900 WETHEREDSVILLE RD
Gwynn Oak

Chesapeake Thermal Enterprises Inc

879 Mount Airy Rd
Davidsonville

CHESTNUT HILL ELECTRIC

2700 CHESTNUT HILL RD
Forest Hill

CHEVY CHASE REMODELING

7722 Whiterim Ter
Potomac

CHILMAR CORP

5724 BELAIR RD
Baltimore

CHOICE ELECTRIC LLC

158 LAKE SHORE DR
Pasadena

CHOPTANK ELECTRIC CO-OP

47 STATE CIR
Annapolis

Chris Ray

219 Deep Dale Dr
Lutherville Timonium

Circle City Telcom, Inc.

550 South Daleville Avenue

CIRCLE ELECTRIC INC

BOWLEYS QUARTERS RD
Middle River

CIT TECH ELECTRIC CO

3165 BUFFALO RD
New Windsor

City Renovations & Remodeling LLC

938 E Swann Creek Rd
Fort Washington

Cityline Electric

1214 Kirby Cir
Bel Air

CJ Lehrer & Sons

415 Myrtle St
Crisfield

CLARIFIED ELECTRIC INC

741 FREDERICK RD
Catonsville

CLARK ELECTRIC CO

14000 Binghampton Dr

Clarksville Construction Services

9050 Red Branch Rd
Columbia

CLASS MECHANICAL CONTRACTORS

1695 HART CT
Crofton

Clatchey Electrical Contractor Inc

418 Font Hill Ave
Baltimore

CLEARVIEW AIRPORT

526 OAK TREE RD
Westminster

Clinton Electric Co Inc

1850 York Rd
Lutherville Timonium

CM ELECTRICAL SERVICE

763 212th Street
Pasadena

Cochrane Construction & Design

9710 Royal Crest Cir
Frederick

COLLINS-SNOOPS & ASSOC INC

10819 WILLIAMSON LN
Cockeysville

Colonial Electric

822 Guilford Ave
Baltimore

COLONIAL ELECTRIC CO INC

4444 SOLOMONS ISLAND RD
Harwood

Commercial Trades

904 jamieson Rd
Lutherville Timonium

Compass Design Builders

1430 HARDING LN
Silver Spring

Complete Auto Repair Service Inc

320 Baltimore Pike
Bel Air

COMPLETE BUILDING SYSTEMS INC

2411 Crofton Ln Ste 15A
Crofton

COMPLETE ELECTRIC SVC

3023 PINEWOOD AVE
Baltimore

Complete Kitchens & More

459 Baltimore Blvd
Westminister

Concepts 2 Reality

PO Box 1474
Glen Burnie

CONCORD ELECTRIC INC

4340 GLENMORE AVE
Baltimore

CONCRETE N COUNTERS

4402 KESWICK RD
Baltimore

CONDORE ELECTRIC

6611 ELEANORE AVE
Tracys Landing

CONNECTION ELECTRICAL SVC

5339 ENTERPRISE ST
Sykesville

CONNOR Institute

1421 Clarkview Road Suite 100
Baltimore

Constant Power, LLC

2203 Commissary Circle
Odenton

CONTEMPORARY ELECTRICAL SVC

1208 Guadelupe Ct
Westminster

CONTOUR CONTRACTING INC

733 Generals Hwy
Millersville

Contractors For Less

8238 Georgia Ave
Silver Spring

CONTROL SOURCES

8860 KELSO DR
Essex

CONTROL TECHNOLOGIES-CENTRAL

2109 EMMORTON PARK RD
Edgewood

COOK ELECTRIC

2130 Renard Court
Annapolis

COOPERATE ELECTRIC INC

400 FAIRLEIGH CT
Tracys Landing

CORNERSTONE ELECTRICAL SERVICES

3607 DUNNINGTON RD
Beltsville

Cosgrove and Sons

14100 Red Eagle Ln
Silver Spring

Cossentina Inc

9013 Dunloggin Rd
Ellicott City

COSTANZA CONSTRUCTION CO INC

130 Warwick Dr
Lutherville Timonium

COURTYARD KITCHENS

123 HANOVER PIKE
Hampstead

COVE ELECTRIC INC

200 EDGEWOOD RD
Edgewood

Cox Communications

3080 Centreville Rd

Cox Roofing

3705 Bank St
Baltimore

CRAIG ELECTRIC

7 ELLENS CHOICE WAY
Parkton

CRANSTON ELECTRICAL SVC

PO BOX 49
West River

CREATIVE MARKETING ASSOC LTD

213 LIST AVE
Pasadena

Crimetime Security, Inc

12582 indian hill dr
Sykesville

CRIMETIME SECURITY, INC.

12582 Indian Hill Drive
Sykesville

CRM Construction Inc

1355 Skinners Turn Road
Owings

CROFTON ELECTRICAL SVC LLC

1719 FALLSWAY DR
Crofton

CroppMetcalfe

8421 Hilltop Rd

Cross Amps Generator Solutions, LLC

Post Office Box 623
Edgewater

CROWELL CONSTRUCTION & REMODELING

322 UPPERLANDING RD
Essex

CROWN ELECTRIC CO

2027 GREENSPRING DR
Lutherville Timonium

Crystal Chandelier Cleaning

6264 Audubon Drive
Columbia

CUB HILL ELECTRIC INC

2832 HARFORD RD
Baltimore

CUMMINS CHESAPEAKE POWER INC

6120 HOLABIRD AVE
Baltimore

CURRENT CHOICE ELECTRIC

1149 GREEN MEADOW LN
Westminster

Current Power Inc

4106 Harvard Pl Ste B4
Frederick

CUSICK ELECTRIC

PO BOX 255
Savage

Custom Carpentry Plus

9815 Ritchie Ct
Frederick

Custom Runs Tech & A/V

5004 Honeygo Center Dr
Perry Hall

CUTLER-HAMMER

6671 SANTA BARBARA RD
Elkridge

CYGNUS INSTRUMENTS INC

1993 MORELAND PKWY
Annapolis

D & D APPLIANCE REPAIR

PO BOX 476
Baltimore

D & D ELECTRIC SVC INC

1300 ENTERPRISE CT
Bel Air

D & D POWER WASHING

12423 EASTERN AVE
Middle River

D & I MECHANICAL CONTRACTORS

10815 BEAVER DAM RD
Cockeysville

D & M ELECTRIC

837 SUNNY CHAPEL RD
Odenton

D & P ELECTRIC CO

3750 ALDINO RD
Aberdeen

D & R MECHANICAL

570 DOEFIELD CT
Abingdon

D C & C ENGINEERING

79 E MAIN ST
Westminster

D C POWER SYSTEMS INC

1717 WHITEHEAD RD
Gwynn Oak

D C SESSIONS INC

213 QUAKER BOTTOM RD
Havre De Grace

D'ANGELIS BROTHERS

4119 E LOMBARD ST
Baltimore

D.J.'s AUTO SPECIALISTS & SALES

3619 FORT MEADE RD
Laurel

DACCO DETROIT OF MARYLAND INC

175 PENROD CT
Glen Burnie

Dahan Electric Inc

PO Box 24
Glenwood

Dallis electrical services

1102 N Tollgate Rd
Bel Air

Dan Nichols Contractor

5777 White Rock Road
Sykesville

DAN'S TIRE CO

918 WASHINGTON BLVD
Baltimore

Data Network Solutions, LLC

1009 Bay Ridge Ave #211
Annapolis

DAVE UNDERWOOD ELECTRIC

82 SUNSHINE WAY
Westminster

Dave's Electric

5120 Edmondson Ave
Baltimore

David and Matthew's Dad

5201 Crest Ct
Jefferson

David B. Rhodes, Inc.

10717 Crestview Lane

DAVID E WANTZ

2403 TREVANION RD
Taneytown

DAVID LAW

PO Box 3124
Catonsville

David LeBon Custom Carpentry

16360 Frederick Rd
Woodbine

David Rutch's Precision Remodeling Inc

4200A Little Road
Whiteford

David Williams Electric Co Inc

PO Box 2272
Ellicott City

DAVIS H ELLIOT CO INC

730 NEW WAUGH CHAPEL RD
Odenton

Day Jobs, LLC

877A Annapolis Ave
Edgewater

DAYTON ELECTRICAL CONTRACTING

4435 OAKWOOD OVERLOOK CT
Dayton

DBK Electric

3425 Viewridge Circle
Manchester

DE LUCA ELECTRIC INC

1402 FOX GAP CT
Fallston

DECA INC

6501 HARFORD RD
Baltimore

DECKER CORP

5193 RAYNOR AVE
Linthicum Heights

DECO CONTRACTORS INC

700 S PHILADELPHIA BLVD
Aberdeen

DEER CREEK ELECTRIC

3908 WILKINSON RD
Havre De Grace

DEERFIELD ELECTRIC

7215 SUNSHINE AVE
Kingsville

DEES FLUID POWER

1809 FASHION CT
Joppa

DEJOHN ELECTRIC COMPANY, INC.

2121 WINSTONE CT
Darlington

DEJOHN ELECTRIC COMPANY, INC.

2121 WINSTONE CT
Darlington

DeJohn Electric Company, Inc.

2121 Winstone Ct
Darlington

DeJohn Electric Company, Inc.

2121 Winstone
Darlington

DELMARVA POWER & LIGHT CO

731 HELEN AVE
Linthicum Heights

DELTA UTILITIES SVC INC

6247 FALLS RD
Baltimore

DENNIS D DAVISON INC

6400 Frankford Ave Ste 15
Baltimore

DENNIS J DIEM & SON INC

4241 NORRISVILLE RD
White Hall

DENNY'S ELECTRICAL SVC

4 GLEN DAIRY CT
Parkton

Deshaies Electrical Services LLC

762 Rosewood Rd
Severn

Designing Renovations

5010 Tulip Ave
Halethorpe

DHC Repairs and Remodeling (Dan Himmelfarb Co.)

11515A MOUNTAIN VIEW RD
Damascus

DIAKO ELECTRIC INC

1010 BALTIMORE BLVD
Westminster

Diamond Point Construction

1915 Midland Rd
Dundalk

DIGITEST

9633 LIBERTY RD
Randallstown

Diligent Home Improvement

9327 Ridings Way
Laurel

Dimitri's Home Improvement Inc

929 Stormont Cir
Halethorpe

DIRZUWEIT & SONS BUILDERS INC

1646 WHITEFORD RD
Darlington

DIVERSIFIED MECHANICAL CONTR

512 CRAIN HWY N
Glen Burnie

Divine Connections,LLC

530 Brisbane Rd.
Baltimore

DIXON ELECTRIC

202 EMILY LN
Sudlersville

Dj Floors LLC

9192 Red Branch Rd
Columbia

DJ's Construction

2321 Manchester Rd
Westminster

DMD APPLIANCE REPAIR

400 REISTERSTOWN RD
Pikesville

DOMCO MECHANICAL INC

9590 LYNN BUFF CT
Laurel

DOMINIC ELECTRICAL SVC

5 AUGUST AVE
Catonsville

done right electric

705 71st ave
Seat Pleasant

DONLEE ELECTRIC INC

2330 SPARROWS POINT RD
Sparrows Point

DONOVAN ELECTRIC

2135 Oyster Creek Dr

Doolbar Electrical Contracting

18 caraway rd
Reisterstown

Dorn Electric

14394 Crossroads Ave.

Double K Contractors Inc

PO Box 536
Damascus

Down To Earth Communications

3918 Vero Road
Halethorpe

Down To Earth Communications

3918 Vero Road
Halethorpe

DPI CONNECT

5020 CAMPBELL BLVD
Nottingham

DR ELECTRIC

605 RITCHIE HWY
Severna Park
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