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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
)
Home Energy Audit

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
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Global Green Solutions
Global Green Solutions
5.0(
248
)
Energy Audit - For BusinessHome Energy Audit

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
9 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Enact Systems, Inc.
Enact Systems, Inc.
5.0(
1
)
Home Energy Audit

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
)
Energy Audit - For BusinessHome Energy Audit

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
)
Energy Audit - For BusinessHome Energy Audit

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
)
Energy Audit - For BusinessHome Energy Audit

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 rate100%
Recommended by91%of homeowners
Avatar for Independent Powur Solar Energy Consult.
Independent Powur Solar Energy Consult.
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Berkeley, CA and surrounding areas

In business since 2017

Free estimates

Emergency services offered

What are the Advantages?\n• Powur is like no other solar energy company in the industry. Rest assured, that we will work harder than any other company in the industry to ensure that you have an exceptional customer experience. You can count on us to be with you every step of the way. \n• Powur was named one of the fastest growing private companies in the US by Inc. 5000 magazine\n• Powur is the one of the largest residential solar provider in the United States\n• Powur has installed thousands of systems and offers the best in financing options and warranty services\n• Powur is the 1st solar company to offset 100% of solar manufacturing & installation emissions\n• Powur is a Public Benefit Corporation, our mission is to do good by our community and the environment\nPowur has the most robust product offering and financing options available in the solar industry. We make it painless and easy for homeowners to transition to solar. Here’s an at-a-glance overview of the financing and products that we offer:\nNo matter which option you decide is best for you, the result will be the same: clean energy for your home and more money in your pocket for the things you really care about.\nIf you are ready to see the substantial energy savings of your future solar system, \ncontact a Powur Consultant for your free proposal today!\n$0 Down Lease \nOffers allow, fixed monthly \npayment for 20 years. Full and \npartial prepay options for added \nsavings.\n$0 Down Loan\nPay for your system with a low \nAPR, fixed cost loan for terms \nranging from 10 to 25 years. With \na loan, you keep all the eligible tax \ncredits and solar rebates!\nCash\nBuy the system outright and own \nthe energy from day one. Benefits \nfrom available tax credits go \nstraight to you\n\nhttps://calendly.com/trevorthesolarpro/introduction \n\nGo to the link above to schedule a 15 Minute Introduction Call to further understand your needs for your Solar Project!

Before Install
ACT NOW BEFORE THE PROMOTION COMES TO AN END!
Installation Process
Clean Looking Black on Black Panels!!!
Side by Side Comparison of what the Black on Black looks like vs Black with white grid lines!

+25

Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

Yes, installing an attic fan can help lower your electric bill—particularly if you live in a hot and humid region. By replacing hot and stuffy air with cooler air, these fans help regulate the temperature in your attic and the rest of your home, taking some of the pressure off of your air conditioner.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

R-value is calculated by dividing the thickness of an insulation material by its thermal conductivity. The material's composition and density influence thermal conductivity. Materials with lower conductivity values provide better insulation. The higher the R-value, the better the material is at insulating, helping homeowners select insulation that meets the energy needs of their climate and home layout.

You can check your home's humidity in a few ways. A simple option is to use a hygrometer, which you can find at a hardware or big box store. Your smartphone may also have an app that can measure humidity. Modern thermostats, particularly smart thermostats, are also able to measure humidity levels.

Yes, with features like LED lighting and variable speed controls for efficiency.

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.