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TRUSTED BY BERKELEY, CA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon14
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Berkeley

Avatar for Posert Energy Consulting
Posert Energy Consulting
4.6(
47
)

Serving Berkeley, CA and surrounding areas

Approved

In business since 2019

Customers say: True professional

"I highly recommend having Peter do an energy audit on your home. He gave me valuable recommendations on how I can make my home more cozy and energy efficient."
Response time2 days
6 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)

Serving Berkeley, CA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"We needed to replace our old HVAC system, and the entire process was smooth and stress-free. The crew was knowledgeable and gave us several options that fit our budget. The installation was clean, quick, and professionally done. Our home feels more comfortable than ever, and our energy bill is already lower. Five stars!"
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+24

Response time3 days
11 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Enact Systems, Inc.
Enact Systems, Inc.
5.0(
1
)

Serving Berkeley, CA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

Enact Systems Inc. is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We have been in business since 2014, and our accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of the interests of our customers and make their concerns the basis of our business.

Solar Panels on Roof
Solar Panels on Roof
Solar Panels on Roof
Response time10 hrs
Response rate86%
Recommended by100%of homeowners
Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)

Serving Berkeley, CA and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We recently had Mega Power Electric Inc install a solar system and panels. The President and provided excellent communication all the way through the process. He even met with us after installation to explain the almost incomprehensible PG&E bill. Although not the least expensive bid, his was competitive and I felt he was as interested in educating me about solar and the various types of panels and inverter systems as he was in selling a system. He demonstrated how the array of panels would meet our energy needs and as opposed to some of the other companies, wasn't selling us more than we needed. We are very satisfied with our solar system and I highly recommended Mega Power Electric Inc."
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+32

Recommended by100%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)

Serving Berkeley, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"After a while of extensive research in finding for the right contractor or construction company to upgrade our kitchen, we decided based on several reasons to go with Landmark construction energy crew and we are so glad we did. The reasons that made us hiring this company were:
-    We felt during the meetings that this company is honest, reliable, focus on making the best decisions for the clients and mainly their passion about what they do and provide.
Although the results of the remodeling that was done by Landmark construction energy crew has far exceeded our expectations and goals. Charlie's professionalism and experience among with his artistic vision was truly amazing. From the moment of listening to what we really want to achieve to the end of the remodeling of the kitchen – not even one item was left uncovered. My favorite feature in the new kitchen is definitely the breakfast area with the gorgeous energy efficient windows including the seating area that overlooks our pool and back yard area.  We really could go on and on with lots of more details and explanations about the attention to detail and amazing design that was done completely by this company, but we rather leave it for others.   Our main recommendation about them is that if you think of hiring someone to remodel anything in your house… Than do yourself a favor and hire Landmark construction energy crew.
"
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Avatar for Service Champions Heating & Air Conditioning
Service Champions Heating & Air Conditioning
4.6(
688
)

Serving Berkeley, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Our Service Tech, Alex Peck, arrived on time to perform the annual check up & tune-up of our HVAC System. He was very professional and following the Tune-Up asked if there was any other items that needed done or looked into that he could take care of. His services were very much appreciated and very professional. Lee"
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+42

Response time9 hrs
Response rate96%
Recommended by91%of homeowners
Avatar for NRG Clean Power
NRG Clean Power
4.5(
46
)

Serving Berkeley, CA and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"It is a project. It took time, effort, and energy to learn all the aspects involved. The team at NRG was always there to lend a hand. Tiffany, Andy, Leslie, and Daniel were all very good in providing me with a sound board with which to reverberate."
Snapshot of solar panels installed on Northern Hollywood home
Solar panels installed on the roof of Southern California home
Solar panel installation in Northern Hollywood
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+24

Recommended by88%of homeowners
Showing 1-10 of 50
Energy Efficiency Auditing questions, answered by experts

After you receive your audit and report, review the findings and determine which of the prescribed changes you want to make to improve your home’s energy efficiency. Start by contacting the type of professionals recommended by the auditor who can help you remedy the issues discovered during the audit. Prioritize the projects by urgency, importance, and budget. Then, gather estimates from several professionals, remembering to verify any necessary licensing and experience information.

It’s not recommended to turn off your breaker box in hopes of saving electricity. Breaker boxes were not designed to constantly be switched on and off. Therefore, turning off breakers unnecessarily can cause costly damage that outnumbers any energy savings. Only flip your breakers if absolutely necessary when troubleshooting an electrical issue.

Home power is measured in kilowatt-hours, commonly expressed as kWh. The average home uses between 800 and 1,000 kWh per month. Peak usage (and highest bills) occurs in the middle of summer and the depths of winter. Keeping on top of your usage during these crucial months will lower your annual average usage considerably. 

An average, 400-square-foot electric heated driveways consume approximately $3 per hour in terms of electricity. The price may slightly fluctuate depending on your local energy cost. A simple formula to calculate your heated driveway’s total wattage consumption is by multiplying the square footage by 50 watts and then dividing it by 1,000 to get the kilowatt number. Multiply that with your local energy cost per hour and there you have the hourly operating cost.

Attic and whole-house fans improve a home's energy efficiency and comfort. They ventilate hot air from the attic, which reduces peak cooling loads, lowers reliance on air conditioning, and decreases indoor temperatures. This improved air circulation and expedited heat exit helps lower cooling costs, balance moisture levels, and enhance overall natural airflow, contributing to the efficient operation of other home equipment.

The Berkeley, CA homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.

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