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Over 2,181 reviews for
Concord Energy Consultants from people just like you.

"I had a home energy audit on 8/15 by Veggeberg and the work was done on 10/15 by two crews. The work involved air sealing and weatherization" that involved Attic Floor insulation and buffered Wall Insulation. The AirSealing was free and the Weatherization was $500.00 I never got the sense that the estimator on August 15 was really into his job. He seemed to be more focused on items he could charge for rather than what would be covered for free. The Crews showed up late on 10/15. I had to call to see where they were. The crew for the attic was very good and made sure that they protected the air flow from the soffits and blew insulation over existing insulation. They cleaned up after themselves. However, they contradicted the Auditor's recommendations and told me that some of the auditors recommendations (free stuff) were not necessary. They were in a rush and just wanted to leave. The second crew was horrible. They blew insulation into interior walls and wet plastered over styrofoam to cover the holes and the holes were prominent when the plaster dried. The blown insulation actually cause an interior wall to buckle so they had to stop with the blowing but not before that spilled wet plaster on my staircase carpet ruining it. They also attempted, without my permission, to vacuum up the mess with my shop vac which I am worried has ruined it. They also spilled the wet plaster in the driveway. This second crew was in a rush, did not know what they were doing and I am sure caused more damaged than good. I have pictures of the mess. The most disappointing part ... I never got a call from asking me about the work and when I called them I was put on hold.

-Thomas O.

"The company was on time. Two men promptly got all equipment and tools ready and began cleaning my vents. Any questions I had they answered. Very professional." they cleaned up after themselves. Nice job!

-Danielle R.

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Local Articles in Concord

woman looking at an energy audit printout

Energy Efficiency Audits

One thing homeowners can do to save on energy costs is to have a home energy audit conducted. This will reveal where drafts are entering from outdoors and where insulation is ineffective. Energy auditors can also recommend upgrades in appliances to save energy.

Open, empty refrigerator

Follow these guidelines to cut energy waste and lower utility bills.

A blower door test identifies leaks in a home's envelope. (Photo courtesy of Ryan Potter)

Many homeowners experience energy loss in their homes due to gaps around windows and doors and a lack of insulation — a home energy audit can pinpoint the source

A home energy audit can help you assess how much energy your home consumes. An audit can also show you ways to improve efficiency.

Auditors typically use a variety of high-tech equipment such as blower doors which measure air infiltration; infrared cameras that scan to identify poorly insulated areas; and surface thermometers to find leaks and drafts.

Home Energy Audit reviews in Concord


I was very pleased with the service that we received. was very prompt and professional in all of his communications before, during, and after the services. and I walked the premisis of the house prior to starting and then we let him get to his thing. He pointed out some obvious issues, and issues we had ...More never noticed. I have not purchased his service, yet, for doing the repairs to the house but will likely do so before we the tax credit.
- Charles B.

My home assessor and the assessment itself were fine--but I would have liked to know that other companies (including the major utility companies) also have people trained for this work, and this isn't the only option; for some reason, when you try to schedule your assessment with MassSave or MassEnergy, it automatically connects you to ...More , as if they are the only company you can have the free home energy assessment with. It was all rather confusing, and since I'm usually pretty savvy, I suspect they manage to get a lot of people to sign up with them this way.
My energy assessment itself was informative and helpful, and my assessor was prompt, professional, and knowledgeable, so that was a good experience. But then they hook you up with their "preferred partners" for the work you need to have done. They also offer the attic insulation work themselves, and made the HEAT Loan program even more confusing that it was. I had some questions because of this, but every time I called, I had to call a general number, and would get a new person who would give me information that was different from what I had been told previously, so I opted not to have any attic insulation work or other paid work done with them (and their estimates and partner estimates were REALLY expensive).
If you choose to have them do the home energy assessment, you should feel confident that they will do a good job. But I am always suspicious of companies that try so hard to rope you into using their heating contractor, window contractor, etc., and I don't get the impression that they're the most organized or streamlined company--I'm not actually sure what they specialize in, to be honest. They seem to do some windows and attic insulation.
I would again like to emphasize that all of their employees that I met with were really wonderful--knowledgeable, not pressuring, helpful. Their phone people, however, didn't seem to know very much.
- Corinne P.

I could not be happier with my experience. is a first-rate company. They surpassed my expectations by a wide margin. They visited my home twice. On both occasions, they arrived promptly at the agreed-upon time and immediately got to work. On the first visit, and her team performed a thorough energy assessment ...More of my home which took about two hours. The cost of the audit was $400. Three hundred dollars was covered by PEPCO directly without me having to submit a rebate claim. At the end of the assessment, reviewed the results with me, provided me with a detailed written report, and pointed out areas where improvements could be made. She also pointed out what rebates were available through PEPCO for specific improvements. I found the assessment and recommendations to be very objective. At no time did I feel pressured to accept the recommended improvements. Before leaving on the first visit, 's team installed two low-flow shower heads and approximately 10 CFL bulbs. The cost for these materials and the labor was fully-covered under a Maryland tax program designed to promote . I would not have known about it if hadn't educated me. On the second visit, they topped-off the cellulose insulation in the attic that had settled over a 10-year period and was no longer at the recommended R-value for the Mid-Atlantic Region. They took great care to protect my floors, carpets and furnishings. After the insulation was installed, they re-checked the overall insulation status of my house and cleaned up meticulously. Total cost for the insulation job was $3800.00. I paid $1700.00. The rest was covered by a PEPCO rebate. took care of submitting the rebate claim.
In my opinion, represents American small business at its finest: Skilled, attentive to detail, customer-oriented and honest. I would use their services again without hesitation.
- Eric G.

Very well for the most part. The owner was very friendly, professional and punctual. I was notified timely of any changes to the schedule and worked with me to obtain financing through NYSERDA (though it was not used). I also appreciated the owner agreeing to add additional small jobs to the contract. I was pleased with how things were going (the sub-contractors ...More were timely and cleaned up after themselves). There was one exception, the final sub-contractor. The painter was initially professional, but I was later disappointed in his behavior (once he balked at available times to work and said I could leave my key like [others], when I was not pleased with him washing paint brushes in the main bathroom, of my 1 and 1/2 bath home, I was told he left it cleaner than he met it, on the final day of painting he called at the exact time he was supposed to arrive to say he had a flat tire (coincidence? perhaps), and showed up almost an hour later with the owner of . I would definitely recommend using , despite the behavior of one sub-contractor. The owner is very professional and the work is done well.
- Victoria C.

He kept his appointment with me and was very cordial and nice. He explained everything and what he could not do he offered some other solutions to the areas that needed more attention than what he could provide. I was very pleased with and would recommend him to my neighbors and any other person that needed energy audits and ...More weather strippings.
- Barbara J.

Showed up on time and got the job done in a reasonable amount of time. Answered questions politely and was very professional.
- Randy K.

They used someone that was in training to seal attic spaces, so not sure everything was up to standards. Uneven attic insulation blown in, was told that the higher points were places that I got more than required. Installed Solar Fan off center so that air flow was not optimal. Came back out to fix and just cut another square out of roof (when I asked ...More for cut to match opening in fan) and continually said that I said it was making a rattling noise (when I stated it was a sucking air sound).
- Derrick M.

We bought a house that we knew had humid crawl space. The previous owner didn't even have vapor . was one of the crawl space experts we asked to come out to evaluate and recommend remedies. Other companies just looked at the crawl space and recommended costly remedies including encapsulation and ...More dehumidifier installation. was very different in that she spent over an hour evaluating crawl space and house exterior systematically. She suggested that water entering from gutter into crawl space was a factor. She sent me a detailed proposal to extend gutters and encapsulate crawl space (includes spray foam, placing thick vapor , removing humid fiber glass insulation, conditioning crawl space, duct insulation, and shutting vents.) The price was reasonable for such an extensive work and less than what other companies quoted. always let me know when they are coming out to do the work. She spent significant amount of time supervising the workers. She was considerate to have a port-a-potty brought in so they don't need to use our indoor restroom. Everything went very well and they always cleaned up nicely. Duct insulation qualified for $200 rebate from TVA. TVA person who evaluated was very impressed with their work and said always does great job. If we need a contractor in the future, we will be contacting . She is responsible, spends time to explain, and returns communication promptly. I can highly recommend .
- Mari K.

Energy Consultants in Concord, CA

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

110/220V Electric Co.

2 Seville Court

A V Energy & Associates

45263 7th St East

A.S.F. Electric, Inc.

76 Hill St.
Daly City

ABC Cooling & Heating

3266 Investment Blvd

Advanced Home Energy

1356 S 50th St

Aligned Investments

336 Bon Air Ctr.

Ally Electric & Solar Inc

865 Marina Bay Parkway

Attic Masters

14729 Oxnard St
San Jose

Avalon Builders, Inc.

23900 Farm Road


38 Beta Ct.,
San Ramon

B A Morrison

2544 Castro Valley Blvd
Castro Valley

Bein' Green Buildings

1030 Ramona Ave.

Bene' Electric

PO Box 774

Beyond Builders

181 2nd Avenue
San Mateo

Blue Ivy Energy-Corrie Sampson

3060 El Cerrito Plaza
El Cerrito

BRYLAND Contracting & Electrical

7172 Regional Street #438

Cal Solar Works

611 8th Ave
Menlo Park

Central Valley Raters Inc.

Po Box 20310

Christopher Carlson Construction

730 w verano ave

Cold Craft Inc Heating and Air

181 Lost Lake Ln

Down To Earth Solar

1950 Geary Rd
Pleasant Hill

Eagle Shield Inc

4115 Blackhawks Cir

Eco Performance Builders

5063 Commercial Cir. Unit C

Efficient Electric

1373 Flora Ave
San Jose

Energy Choice Center

1301 Seminole Boulevard Suite 155

Energy Conservation Options

7770 Pardee Ln # 150

Energy Efficient Services

40 Mark Drive
San Rafael

EnergyTech LED, Inc.

3130 Crow Canyon Pl. Suite 205
San Ramon


480 San Antonio Rd Ste 202
Mountain View

Excelsior LED

3701 Collins Ave
San Pablo



General Wholesale Electric Supply

11 Rickenbacker Cir

Gentec Services Inc

PO Box 2654

Green NRG

20335 Ventura Blvd
Woodland Hills


505 Montgomery, 2nd Floor
San Francisco

H Builders, LLC

716 Stannage Avenue

Handyman Xpress

1143 Bannock st

Hassler Heating & Air Conditioning

1537 S 56th St
El Cerrito

Healthy Duct Cleaning

235 Westlake Center
Daly City

HelioPower Inc

25747 Jefferson Ave

Hi-Tech Computer Aided Engineering

547 Moreland Way
Santa Clara

HNI Builders

PO Box 3022

Home Healing Renovations Inc

702 Harrison St

Honey's Air & Solar

5536 Pirrone Rd

Ideal Solar, Lighting & Electric

1145 2nd St.


793 Broadway

Insight Control Systems

2366 Walsh Ave
Santa Clara

Insight Control Systems

2366 Walsh Avenue
Santa Clara

LGCY Power

900 E Hamilton Ave

M&M Construction & Home Design

1647 Willow Pass Rd


1696 Trowville Ln.

Nationwide Secure inc.

3215 Calhoun Ct


168 11th Street
San Francisco

One Block Off the Grid

164 South Park St.
San Francisco

Pathways Energy, Inc.

107 Stanford Avenue
Santa Rosa

Peter Levi Plumbing Inc

1818 2nd St
San Rafael


610 W 10TH ST

Quinn Construction

1919 Lucille Ln
Pleasant Hill

Roving RV Tech

PO Box 3027



Service Champions Heating & Air Conditioning

7020 Commerce Drive

Sky Renovation

5632 Van Nuys Blvd
Van Nuys

Slingshot Power

164 Main St
Los Altos

Solar Land Partners

12672 Kane Dr

Solar Technologies

705 N Branciforte Avenue
Santa Cruz

Solar Technologies

14 Beta Court
San Ramon

Solar Universe South San Francisco

101 1st Street
South San Francisco

Solid Build Construction Inc

956 San Pablo Ave

Stewart Heating Air & Plumbing Inc

620 Garcia Ave


595 Market St
San Francisco

Synergy Co

28436 Satellite St

Synergy Companies

1376 E turner rd #A

TC Building Management

211 Kingston Ct.

The Green Energy Experts

PO Box 751042

Treeium, Inc

5352 Laurel Canyon Blvd.
Valley Village

Vacaville Electric

1011 Mason St

West Coast Energy Solutions

3035 Garden Court

Wiegardt Electric and Lighting Controls

2778 Jefferson Street

Wilkinson Design & Construction Inc.

46 Greenfield Dr
San Anselmo


18664 melody ln

Your Energy Solutions

6700 Santa Rita Rd.

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