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"He was responsible, respectful and professional. He was able to almost accomplish everything we had hoped that he would be able to do in the day, and will follow" up generously with us for the final small things.

-Miriam B.

A
"The staff was very prompt in returning the calls and scheduled the service within 24-48 hours. Arrived to perform the inspection in time and also arranged a rapid" repair on the spot. The needed re-wiring of sub-panel was completed the same afternoon once the diagnose was done. It is amazing how fast they could get to the spot and resolve issues. Their response after the service was prompt too. Will recommend to others.

-kelly L.

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Local Articles in Gaithersburg

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Angie's Answers

?

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).

?
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.
?

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 !

 

?

The amperage is the rated power it can handle. Modern houses are generally built with 200 amp panels, and a lot of the newer ones are going 300-350 amps as more and more electronic devices and fancy and high-demand kitchen devices and increased lighting are used in homes.

Both are just as safe - the 200 amp one will just have many more breaker slots, allowing way more circuits, and providing more room for expansion in the future, especially for power-hungry things like shop tools. Each uses only as much electricity as is used in the circuits - the panel itself does not consume any electricity, so no long-term impact there. It is just a circuit connection box where the individual circuits are connected, with circuit protectors (breakers) in line before it connects to the main line to your electric usage meter.

Unless you are real tight on money on this job, I would upgrade to 200 amps capacity - the incremental cost is about $100-200 or so over the 100 amp panel. If your incoming power line cannot handle 200 amps, you could install a 100 amp main breaker to keep the power company happy but put in the 200 amp breaker panel, so in the future a main line upgrade could be done with only a main disconnect breaker upgrade of $100 or so, without having to change anything inside the house.

Having the larger panel, especially if 200 amp capacity all the way from the meter, can be a selling point (or rather, lack of a negative point) to a potential buyer with lots of electronics or who is into shop power tools. It would also facilitate conversion to electric heat / water heating if someone wanted to do that.

?

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.

Electrician reviews in Gaithersburg

A

Rating
The work was excellent. and his assistant were on time and professional. The responsiveness to our request for the work required was fantastic. Appointment options were provided to get the work done. made sure that the original work would be done promptly, the next day, by stopping at our house in ...More the afternoon on his way home from work. Had the job done withing an hour. Fantastic!!!
- Michael M.
A

Rating
The original electrician assigned could not come at scheduled time due to a family emergency, but the company called to let us know the situation and offered to send another electrician working in our area at a later time in the same day. We were agreeable.
Electrician arrived at scheduled time, but didn't have a dimmer switch, because he ...More wasn't the original assigned electrician and didn't know what parts were needed. He offered to go their electrical supplier (if they were open, which they were - barely) and obtain the necessary dimmer switch.
Switch was replaced without any issues. He also looked at the bathroom exhaust fan, and said that the heater was actually not working, and there wasn't anything more he could do unless / until I purchased a new fan.
My "price" concern is with the charge for troubleshooting, which is in the neighborhood of $300, even though it seemed to require only about 15 minutes! They seem to have set amounts they charge for certain services, which can be a value, or not, to the homeowner. I ended up paying for the $88 value package (which presumably gave me $200+ value in work) plus another $21 for the service. Considering this included the switch, and he was maybe at my house for a total of an hour, that is probably typical...not any great value.
He also spent a fair amount of time describing other services I could purchase, but there was no high pressure or anything.
All in all, they were reliable, trustworthy and they stand behind their work, just need to get a good understanding of the charges to expect for the work you are having them perform.
- VICTORIA V.
A

Rating
Work was of high quality and was completed promptly without any surprises. Crew worked very closely with the cabinet installer planning ahead each day. They were very attentive and cleaned up the work place each day, no mess was left behind. Everything was explained in detail and our questions/concerns were answered patiently as the project progressed. ...More Price seemed fair and very competitive with other estimates I got for this job. Overall, we were very pleased with the final product and would love to use them again for future projects.
- Nicolae B.
A

Rating
sent out 2 workers to check out why we were experiencing an electrical when in our shower. It was diagnosed that we needed a grounding wire attached to our water line.
- Bob B.
A

Rating
was able to track down the root cause of 4 light switches that were
not working. It was an unusual cause linked to a switch that was
working. It took a lot of checking the electrical system. House wired in
a strange way when built. But, he solved the problem! was quick
to respond ...More and fit us in his schedule. This is the second time we have retained for our needs. Will use him again.
- Barbara F.
A

Rating
Great work - clean, professional, and prompt. They gave an estimate on the phone and it was less expensive than anticipated.
- Dan P.
A

Rating
Upon requesting service, Nick was very quick to respond to my questions and walked me through the pricing for the service. His technicians arrived on time, were willing to explain their work, etc. I did have a wall switch that went to an unknown location, and after some investigating the technician admitted that re-wiring the switch to the light would ...More require a smaller/more nimble technician to navigate the very tight attic space. Overall, however, the rest of the work was completed in a timely manner and to the quality promised. I would call them again for sure.

- Tim S.
A

Rating
was extremely professional and did a great job. It wasn't going to be easy but he worked quickly and efficiently to get it done. We would definitely use him again!
- Kelly D.

Electricians in Gaithersburg, MD

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

"Andrade's Painting"

3143 Southgate dr apt 10

1 ENTERPRISE LLC

1402 North Capitol Street NW

1st Choice Painting and Carpentry

6520 75th St
Cabin John

1st class handyman

portship rd
Dundalk

2 Griffins Design and Build, Inc

27421 Clarksburg Rd
Damascus

4 Service Pros

2010 Corporate Rdg

A & J Home Remodeling

3212 South 13th Rd

A & J Little Electrical Services, LLC

145 Fleet Street, 311
National Harbor

A & R Electric

7636 Airpark Rd
Gaithersburg

A + Services LLC

11329 Old Prospect Hill Rd
Glenn Dale

A Action Home Services

6404 Telegraph Rd

A C Electric Co, Inc.

15829 Redland Rd
Derwood

A J Surman Construction

2135 Cabots Point Lane

A One Call Handyman Service

11703 Newport Mill Rd
Silver Spring

A Stegmeier

4103 Roanoke Rd
Hyattsville

A SUPERIOR ELECTRIC COMPANY, LLC

5020 GREEN VALLEY RD
Monrovia

A Touch of Matisse contracting

13145 Dairymaid Drive
Germantown

A&D Electrical Services

9810 BRADDOCK RD
Silver Spring

A&K Remodeling

Po Box 2266

A&R Cabling Inc

2921 Stillwood Circle

A&S Electric, LLC

12913 moray rd
Silver Spring

A-1 Handyman

4704 Eddystone St

A/X Carpenters & Builders

4108 Warner St
Kensington

A1 - Simco Electric Inc.

5117 Yorkville Rd
Temple Hills

a1-simco electric Inc.

5117 Yorkville Rd
Temple Hills

AAction Home Repairs

8324 Veterans Hwy
Millersville

AAHI

PO BOX 1285
La Plata

AAV INC

8101 Hudson Falls Way

ABCR Builders

734 Fairview Ave
Takoma

Absolute Electric LLC

111 Carpenter Dr

Absolute Electric Service

8787 Branch Ave
Clinton

AC Remodeling Inc

4 Goodport Ln
Gaithersburg

ACA Contracting

5500 Holmes Run Parkway Suite C4

ACORN RENOVATIONS

1030 ASHE ST
Davidsonville

Active Home Renewal

1409 Broadwood Dr
Rockville

ACV Home Improvement LLC

6748 Jenny Leigh Ct

ADG Contractor

3120 Collie Lane

ADVANCED DATA SYSTEMS INC

16417 TOMAHAWK DR
Gaithersburg

Advanced Electric

10495 Greenleaf Place

ADVANCED HOME RIGHT

7630 AIRPARK RD
Gaithersburg

Advanced Solar Technologies

10487 Carberry Ct
White Plains

AES BUILDER & HOME IMPROVEMENTS

6915 GOLDEN RING RD
Rosedale

Agcayazi llc

11110 Byrd Dr

AHR SERVICES INC

6226 Berlee DR

Air Benders

23571 Pebble Run Pl

Air Master 07, LLC

3152 Annandale Rd

AIR SYSTEMS INC

806A BARKWOOD CRT
Linthicum Heights

AK Electric

2708 Sleepy Hollow Road

Ak Electronics

452A Shadyhill In
Millersville

Alexander Technical Resources

1263 Glenwood Ave SE

Alfa Group, LLC

7208 south hill drive

All America Drywall Inc.

10941 Woodfair Rd

All Around Home Improvement

11839 Shire Ct. #32

Alzate Painting LLC

2114 Lanier Dr
Silver Spring

AMERICA'S 1ST CHOICE INC

3521 29 TH AVE
Capitol Heights

American Bath Inc

PO Box 10477
Silver Spring

AMERICAN CONSTRUCTION SERVICES

10602 Guilford Road
Jessup

AMERICAN HOME SERVICES

34 Shining Willow Way
La Plata

American Home Specialists

13221 Mockingbird ln
Bowie

AMERICAN HONDA MOTOR CO

902 WIND RIVER LN
Gaithersburg

American Kitchen Concepts, Inc

9150 Rumsey Rd
Columbia

American Mold & Restoration

3540 Crain Hwy
Bowie

American PowerZone Inc./ Sunburst Electric

3821 Farragut Ave
Kensington

American Service & Installation Corp.

15812 Mt. Everest
Silver Spring

AMG-ANTONIO MENDEZ GOMEZ

1208 HOLTON LN
Takoma Park

AMGC LLC

18534 Cherry Laurel Lane
Gaithersburg

Amplified Services

3856 Pinewood terr

Amptech

9605 Ironsides Rd.
Nanjemoy

AO Associates Home Improvements LLC

2044 Astilbe Way
Odenton

Arandson costruccion

11508 montgomery rd
Beltsville

Arc Electricity

2921 Stillwood Cir #202

Arch7 Handyman Services

6373 Little River Turnpike

Archadeck of Central Maryland

8302 Brink Rd
Gaithersburg

Arco Painting & Remodeling LLC

14405 Innsbruck Court
Silver Spring

Argent Heating And Cooling LLC

501 Church Street NE

ARH Electric

PO Box 3638

Arme Construction, Inc

13317 Rushing Water Way

Armelcom, LLC

4611 COACHWAY DR
Rockville

ARTIFEX CONTRACTORS LLC

7720 Timmons Rd
Union Bridge

Ashford Kirby Inc

438 Girard Street
Gaithersburg

assa construction services,llc

9304 player drive
Laurel

Associated Designers

2844 Wisconsin Ave NW

Associated Electric, LLC

7144 Boyers Mill Road
New Market

Astro Communications

7734 Donnybrook Ct

Atlantic Coast Electric, Ltd

PO Box 735
Frederick

Auto Clinic Care

5531 Nicholson Lane
Rockville

Avedon USA LLC

505 Commerce Dr
Upper Marlboro

AVID RESOURCES

1304 Garrison Ct NE

awm electric service

614 larchmont ave

AYT Capitol Heights Transmission

6520 Central Ave
Capitol Heights

B & B Quality Home Improvement

13251 overcup oak court

B&W Painting Company

329 Prince George Street
Laurel

B.A.I Construction

2815 Gibson Oaks dr

B.K. Services

504 kibler circle

Bailey & Shipp Electric

2822 Solomons Island Rd
Edgewater

BALCHUN CONSTRUCTION LLC

11841 MARMARY RD
Gaithersburg

Baldissera Electric

15312 Gable Ridge Ct
Rockville

Barry's Capentry

5515 Heming Ave.

Basement Masters

1680 E Gude Dr,
Rockville

Beacon Electrical Services Inc

8494 Signal Hill Rd Suite E

BEACON ENTERPRISES

7334 CLIFF PINE DR
Gaithersburg

Beautiful Home Services

18909 Fisher Ave
Poolesville

Behne A/V Installations

Fort Washington

Belectric1331

15007 Cardin place

Bella Casa LLC

14216 Long Green Dr
Silver Spring

Benchmark Builders LLC

108 Meadowview Lane

Bentz Electric

11215 Georgia Ave Apt 608
Silver Spring

Beschenbossel, Dr. John

5225 Wisconsin Ave NW

BEST DRYWALL REPAIR CO

7508 JERVIS ST

Best Value Property Solutions Inc

15900 Sherwood Ave
Laurel

Best Way Electric

PO Box 5143
Laurel

Bethesda Home Improvements

10 Old Bonifant Road
Silver Spring

Bethesda Systems

4712 Rosedale Ave
Bethesda

Betty List

2703 MEMORIAL STREET

BGE Home

1409 Tangier Dr
Baltimore

BHI

154 SCOTT DR

BIDDLE'S HEATING & COOLING

9107 3rd St
Lanham

BIELSKI DESIGN & BUILD INC

1800 Diagonal Road

Big Plate Services

13923 Big Yankee Lane

Billings Construction Inc

14725 Baltimore Ave

bingers handyman services

11454 green acres ct

Blanca's Remodleing

303 Sunbury Ln

BLC Services LLC

22276 Great Trail Ter

BLUE LINE REMODELING

20009 Cinnabar Dr
Gaithersburg

BMC Painting Inc

11439 Monterrey Dr
Silver Spring

Bob Grill General Contractor Inc

9817 Lanham Severn Rd
Lanham

Bogan Services

7609 Airpark Road
Germantown

Bonillas Contractors Inc.

13408 Tamarack Rd
Silver Spring

BOWEN ELECTRIC SVC INC

7856 BEECHCRAFT AVE
Gaithersburg

Boyland Electric Inc

21516 Laytonsville Rd
Gaithersburg

Boyles Home Services

308 Palmspring Dr
Gaithersburg

BP Associates Inc.

4005 Mavis Court

BP Home Improvement LLC

251 S Reynolds st apt 319

Brad4Cad LLC

5657 Utrecht Rd
Baltimore

Bray & Scarff

831 Rockville Pike
Rockville

Broadband Technolgy Corporation

22923 Quicksilver Drive

Building Services Group LLC

1250 Connecticut Ave NW

BUILT-WELL CONTRACTORS INC.

3215 Hoopers Delight Rd
New Windsor

C & A Electric

4208 48th Street
Bladensburg

C & T Contracting

13105 Dauphine St
Silver Spring

C H Tel. Co., Inc.

11700 Piedmont Rd.
Clarksburg

C P Electric Inc

15501 Tuxedo Ln

C&N Electric

Gaithersburg

C-CON Inc

7646 Fullerton Rd

C-N-S Remodeling

4105 Duke St

C-Walls Construction LLC

PO Box 779
College Park

CABINET DISCOUNTERS

9153 ARBUCKLE DR
Gaithersburg

Cabinet Discounters Inc

9500 Berger Rd
Columbia

Cabinet Restoration Company LLC

4223 Hanover Pike
Manchester

Cabinets Discounters Inc.

18224 Flower Hill Way
Gaithersburg

Cable Connexions LLC

2201 Eastern Blvd.
Baltimore

Cadel Construction Group

604 Twinbrook Pkwy
Rockville

Capital Carpet

608 Rhode Island Ave NE

Capital Climate Services

8913 Hilton Hill Dr.
Lanham

Capital Comfort LLC

14740 Flint Lee Rd.

CAPITAL ELECTRO CIRCUITS INC

7845 AIRPARK RD
Gaithersburg

Capital Real Estate Developers

2020 Pennsylvania Ave NW Suite 309

Capitol Boiler Works

7921 Woodruff Ct

Carlos Camayo

9290 Towerside Dr

Carlos Gomez

3612 Freeport Ct

CarterWorx LLC

9915 Snowden Rd
Laurel

Cary Electric Company

15411 Baileys Lane
Silver Spring

Case Design Remodeling Inc

4701 Sangamore Rd
Bethesda

CCD Home Improvement

7803 Old Litchfield Ln
Ellicott City

CDS Home Services

1225 Bengies Rd
Middle River

Cedeno Handyman Svs LLC

1315 wheaton ln
Silver Spring

Cenergetix, LLC

99901 Belward Campus Drive
Rockville

Centrik Construction Corp

10020 Dubarry St
Glenn Dale

Certified Electrical Technologies

7879 Cessna Ave
Gaithersburg

Certified Electrical Technologies

7879 Cessna Ave
Columbia

Certified Inc

13509 Paternal Gift Dr
Highland

Chesapeake Design & Build

PO Box 706
Severna Park

Chevez HVAC, Inc.

4005 Underwood St.
University Park

CHEVY CHASE REMODELING

7722 Whiterim Ter
Potomac

Chris Ecker

112 Calvert Rd
Rockville

Chryst Brothers Construction

12028 Heather Down Dr

Circuit LLC

8213 11th Ave
Silver Spring

Citi Electric Company

12587 Fair Lakes Circle

City Renovations & Remodeling LLC

938 E Swann Creek Rd
Fort Washington

CK Constructions Inc

395 Wilcoxson Dr

Clark's Home Improvement

2010 Bruce Place SE

Clay Fowler & Assoc

5810 63rd Ave
Riverdale

Climate Control Systems LLC.

7705 woodyard farm road
Upper Marlboro

Clinton Electric Co Inc

1850 York Rd
Lutherville Timonium

COASTAL BUILDING AUTOMATION

24404 WELSH RD
Gaithersburg

Cochrane Construction & Design

9710 Royal Crest Cir
Frederick

Code Electric, Inc.

12931 Alderleaf Drive
Germantown

Coleman-Laurienzo Builders, Inc.

26212 RIDGE RD
Damascus

Colle Electric, LLC

9822 Darcy Forest Dr
Silver Spring

COLOSSAL CONTRACTORS

15456 Old Columbia Pike
Burtonsville

COMLINK TELECOMMUNICATIONS LLC

12801 Worldgate Dr Ste 500

Commando Technical Solutions

4824 Brookstone Terrace
Bowie

COMMERCIAL ELECTRIC SVC INC

1 BANK ST
Gaithersburg

Commercial Management Services

3900 Watson Place, NW Suite #G3B

COMMERCIAL WIRING SYSTEMS

3149 APPLE CREEK LN
Waldorf

Community Design & Remodeling

6368 Coventry Way
Clinton

COMMUNITY INVESTMENT REMODELERS INC

8833 WALKER MILL RD
Capitol Heights

Compass Design Builders

1430 HARDING LN
Silver Spring

COMPLETE ELECTRIC SVC

141 THURGOOD ST
Gaithersburg

Complete Enhancement, LLC

6103 Baltimore Avenue
Riverdale

COMPLETE FACILITIES SUPPLY

10011 Bent Tree Ln

CONSTRUCTION SVC PLUS INC

6 E DIAMOND AVE
Gaithersburg

Contractors Consortium LLC

6412 Brandon Ave.

Contractors For Less

8238 Georgia Ave
Silver Spring

CONTROL SYSTEMS SALES INC

18860 Woodfield Rd
Gaithersburg

Cook Construction Contracting

8552 Dakota Dr
Gaithersburg

Copeland Construction

19828 Chesley Knoll Drive

COPPER ELECTRIC LLC.

3113 Hewitt Ave Apt 517
Silver Spring

Cortez Services LLC

6130 Marshall Dr

Cosgrove and Sons

14100 Red Eagle Ln
Silver Spring

Covenant Development Company

818 Connecticut Avenue NW

Creative Concepts Remodeling Inc

PO Box 1413
Germantown

Creative Electrical Solutions

5325 Sidney rd
Mount Airy

Creative Electrical Solutions

5325 Sidney rd
Mount Airy

CREATIVE WOOD CONCEPTS

16201 OAK MEADOW DR
Derwood

Crossbuild, LLC

PO Box 1282

CRW ELECTRIC, INC.

P O BOX 321
Brookeville

Crystal Chandelier Cleaning

6264 Audubon Drive
Columbia

CS Powerman LLC

8560 Springfield Oaks Drive

CSG DESIGNBUILD

5840 CAMERON RUN TER

Custom Carpentry Plus

9815 Ritchie Ct
Frederick

CUSTOM ELECTRONIC CO INC

7851 AIRPARK RD
Gaithersburg

CUSTOM PAINT & DRYWALL

14611 NORTHCREST DR
Rockville

Custom Runs Tech & A/V

5004 Honeygo Center Dr
Perry Hall

CutOn Power, Inc.

3725 Concorde Parkway

Cyrus Construction LP

3927 Old Lee Hwy

D & S Remodeling Inc

2441 P. O. BOX

D H VEIRS CONTRACTING LLC

9920 OLD SPRING RD
Kensington

D&A Contractors LLC

110D Frederick Ave
Rockville

D&D Technology LLC

2792 GRANITE WOOD CT

D&J CUSTOM FINISHES

5780 LONG BEACH DR
Saint Leonard

D&W Repair Service

18451 Heritage Hills Dr
Olney

Dan's electric 24/7 service

5734 magnolia tree ct
Frederick

Daniel's Home Services

6506 96th Ave
Lanham

Daughtry Electric

7211 Clifton Road

David LeBon Custom Carpentry

16360 Frederick Rd
Woodbine

David Williams Electric Co Inc

PO Box 2272
Ellicott City

DC Details Inc.

6822 Valley Brook Dr.

DEDHICO HOME IMPROVEMENTS

15416 BAILEYS LN
Silver Spring

DEEP DISCOUNTERS

550 MARKET ST E
Gaithersburg

Del Valle Contractor Inc

7779 Emerson Road
Hiattsville

DF contractors co.

5209 Aldershot Dr
Lanham

DHC Repairs and Remodeling (Dan Himmelfarb Co.)

11515A MOUNTAIN VIEW RD
Damascus

Diamond Contractor & Restorations

3618 Barcroft View Tr.

Diana Construction LLC

5765 F Burke Centre Pkwy

Direct Property Management LLC

7602 Fullerton Rd unit B

Divine Connections,LLC

530 Brisbane Rd.
Baltimore

Dj Floors LLC

9192 Red Branch Rd
Columbia

DMV home improvement systems LLC

951 russell av
Gaithersburg

DMV Kitchen & Bath Inc

429 E Diamond Ave
Gaithersburg

DMV Remodelers

5419 5th St. NW

DNS Total Construction LLC

12253 Fairfield House Dr

DnT Electrical

650 Maskell Street, Apartment 407

DoCustomWork

Rockville

Domain Renovation & Construction LLC

8422 Queen Annes Dr
Silver Spring

Donald Steinman Electric

25204 Bonny Brook Ln
Gaithersburg

done right electric service

705 71st ave
Seat Pleasant

Double K Contractors Inc

PO Box 536
Damascus

Double L Solutions

7405 Guazor Ct.

DR Handy Services LLC

5420 N MORGAN ST

Dr. Heating & Cooling

Framingham Dr
Gaithersburg

Dram Development Inc

610 Main St
Laurel

DRS SIGNAL SOLUTIONS INC

700 QUINCE ORCHARD RD
Gaithersburg

Drycas Co LLC

2459 Masons Ferry Dr #204

DS Johnson Electric

105 Contour Road
Mount Airy

Duran Enterprises, LLC

12332 Aztec Pl.

Dynamic Electric

Germantown

Dynamic Renovation Services

1810 old post terrace

Dynamic Trio Mechanical Engineering, LLC

15123 Red Ridge Place
Bowie

Dyson Residential

4111 southern ave
Capital Heights

E W SHIFFLETT ELECTRIC

3400 ELMWOOD DR

E3 Technical Group

PO Box 8255
Parkville

Eagles Home Improvement LLC

389 west side dr apt 102
Gaithersburg

Earl MacDonald, PE, LLC

8516 Montpelier Drive
Laurel

East Coast Builders, Inc

29948 Barger Dr
Mechanicsville

Eastern Tech

45945 Trefoil Ln

Ed Lundquist

1134 Frances Dr
Beltsville

Edge Energy

6854 Distribution Dr
Beltsville

Efficient Home

3905 National Dr
Burtonsville

EGG Construction LLC

1805 August Dr
Silver Spring

EK Electric

21700 Slidell Rd
Boyds

Electra Pro LLC

100 Ruritan

Electrical Connections LLC

12 Meem Ave
Gaithersburg

ELECTRICAL WIRING LTD

PO Box 447
Kensington

ELECTRO MECHANICAL SALES CO

8529 MUSCATELLO CT
Gaithersburg

Elite Development

4401 Connecticut Ave NW

Elite Electrical Construction

9017 Hickory Hill Ave
Lanham

Energy Dynamics

14660 Rothgeb Dr.
Rockville

Energy Select LLC

PO Box 61
Chaptico

ERAYELECTRIC

9012 BOWLER DR

Ergon Construction

47078 Garrett Place

Eric B Home Improvement LLC

407 N Stonestreet Ave
Rockville

Ernest Electric LLC

5607 37Th Avenue
Hyattsville

Ernie Giordano

14731 Blackburn Rd
Burtonsville

Esby LLC

1503 Trinidad Ave NE

Eubanks Electric

372 W Bay Front Rd
Lothian

EUCLID TECHLABS

400 Professional Drive, Suite 220
Gaithersburg

EUROCREW INC

14305 CLIMBING ROSE WAY

European Auto Service

7649-A Fullerton Rd

EUROTHEM DRIVES

845 QUINCE ORCHARD BLVD
Gaithersburg

EXECUTIVE ELECTRIC INC

8135 SNOUFFER SCHOOL RD
Gaithersburg

Expert Remodeling Solution Inc

1407 Caddington Ave
Silver Spring

Exquisite Home Decor

15265 Waterwheel terrace

F P DESIGNS LLC

Red Admiral Way
Germantown

FAB Electric Inc

25 Chestnut St
Gaithersburg

Families Home Improvement

4720 Southern Avenue

Fast Fix Handyman

1404 Lonfellow St

Feature Construction LLC

3831 S. George Mason Dr.

FEATURE DESIGN INC

6361 VERDE CT

Ferney Leal Handyman Services

13006 St Charles Pl
Rockville

FINK ELECTRIC, LLC

7748 BRINK RD
Gaithersburg

FIRST CLASS HOME IMPROVEMENT LLC

3837 Sugarloaf Pkwy
Frederick

First Impression Hardscapes

7154 Montevideo
Jessup

five handyman llc

10209 leslie ct apt 306

FLH ELECTRIC LLC

1 CATOCTIN AVE
Frederick

Flooring America

44710 Cape Court Unit 112

Flooring Design Center Inc.

3354 Woodburn Rd Unit# 21

Flynn Electric, LLC

9118 I Beam Lane

Forame Electrical Services

4805 Manheim Ave
Beltsville

Force Construction

2921 wickersham way

Fox First Construction

1744 Carry Pl
Crofton

Fox Installs

439 Foxridge Drive, SW

FPG Contracting Inc

12138 Central Ave
Mitchellville

Freeman & Sons

149 Ivanhoe St Sw Unit 101

Freeman & Sons Electrical & Homeimprovement

5808 Folgate Ct
Capitol Heights

Freeway Construction

1402 North Capitol Street, #4, NW

French Accent

4217 Holborn Ave

FUSION ELECTRIC

18415 THUNDERCLOUD RD
Boyds

FV GENERAL SERVICES

205 S. Harrison Rd

G & G Constructions Inc

4810 Cherokee Ave

G C Construction LLC

9201 Gilmore Dr

G&G Construction and paint LLC

11512 Fenchurch ct
Germantown

G&S Concrete Cutting Company

2439 Henslowe Drive
Potomac

G.F.D Electrical Services

6906 Coolridge Rd.
Temple Hills

GAC Services Gaithersburg AC & Heating

227 E Deer Park Dr
Gaithersburg

Galaxy Electric LTD

6404 Telegraph Rd

GARY'S AUTOMOTIVE

8000 BRAYGREEN RD
Laurel

GBC Kitchen & Bath

5601-H General Washington Dr.

GCA CONTRACTING LLC

P.O. BOX 406
Riverdale

GCT llc

5828 Heming Ave.

GE.G LLC

1408 Golf Course Dr
Bowie

Gemini Construction Services

16405 Gales St
Laurel

General Remodeling Group

11722 Newbridge Crt, Reston, Virginia 20191

GENESIS CONTRACTORS

Silver Spring

Genesis Home Remodeling

10731 Bear Oak Ct.

George's Painting Inc

1009 Brill Way
Hagerstown

GERMANTOWN SERVICES

2991 SUMMIT DR
Ijamsville

Ginalick Electric Heating & AC

115 S Main St
Mount Airy

Glenwood Kitchen & Bath LLC

P.O. Box 247
Glenwood

Go Safer Security

8347 Cherry Lane
Laurel

gogreenow

18777 - E Frederick Rd.
Gaithersburg

Got Electric LLC

18978 Bonanza Way
Gaithersburg

Grand Design, LLC

977 A TONIA CT
Sykesville

Green & Sparkling Janitorial Services

9 Staffordshire Ct
Germantown

Green Builders LLC

6924 Sundown Rd
Gaithersburg

Green Shift Energy

707 President St Apt 925
Baltimore

Greene Home Services, LLC

13208 Ardennes Ave
Rockville

Greenlink Inc

7004 Damascus Rd
Gaithersburg

GSBuilders / Green Studio Builders Inc.

7307 MacArthur Blvd
Bethesda

GSW Electric Service LLC

6366 Albers Dr
Mount Airy

GTWorld Granite & Marble Remodeling

45945 Trefoil Lane Sterling 20166

Gus & Sons Home Services

8133 Edmonton Ct

H & F Service Co

4328 Brookside Dr

H Martinez Contracting LLC

6511 Virginia Hills Ave

H&H Home Improvement

5849 riverside dr

HammerPlus

5123 Crittenden St
Hyattsville

Hands 4 Hire, LLC

67 Bickel ct

Handyman At Your Command

4938 Hampden Ln
Bethesda

Handyman Connection of Rockville (MD)

19520 Club House Rd
Montgomery Village

Handyman Home Improvements/ETC Contractors

4216 Rainier Ave
Mount Rainier

Handyman Matters Of Frederick

7817 B Baltimore National Pike
Frederick

Handyman Medic

3220 Roderick Road
Frederick

Handyman Plus Service

7504 24th Ave
Hyattsville

HandyPro of Washington DC

10411 Motor City Dr
Bethesda

Hanes on Homes

11140 Rockville Pike
Rockville

HANN & HANN INC

12307 WASHINGTON AVE
Rockville

HAS Construction LLC

3421 14th Street NW

Hassle Free Home Improvements, Inc

26218 Ridge Road
Damascus

HavePOWER Electric LLC

10220 River Rd
Potomac

Hawkins Electric Service Inc

8667 Cherry Ln
Laurel

HENRY CONSTRUCTION

822 viers mill rd
Rockville

Henry Sanchez

Germantown

Her Handyman

619 Evans Dr

HFH PLUMBING

8799 D'arcy Road
District Heights

Hi Tech Auto

2020 Chaneyville Rd
Owings

HIGHWAY & SAFETY SVC INC

18960 WOODFIELD RD
Gaithersburg

Hitrik Brothers

7105 Dorsey Rd
Gaithersburg

HLW ELECTRIC

PO Box 2038
Lusby

Holt Electrical Contractors Inc

12154 Darnestown Rd
Gaithersburg

Home Air Services Inc.

12288 Wilkins Ave
Rockville

Home Breakthrough LLC

606 Swallowtail Dr
Frederick

Home Care Plus LLC

9709 Stanton Hall Ct
Gaithersburg

Home Contractors Plus

8402 Quill Point Dr
Bowie

HOME DEPOT

6691 FRONTIER RD
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