Top-rated energy efficiency auditors.

Best energy efficiency auditors near Sonoma, CA

Enter your zip and get matched with up to 5 pros

Need a pro for your energy efficiency auditing project in Sonoma, CA?

Select your specific project to find the pro for you.

Top-Rated Energy efficiency auditors in Sonoma - Updated Nov 2026

Avatar for Mega Power Electric, Inc
Mega Power Electric, Inc
5.0(
191
)
Energy Audit - For BusinessHome Energy Audit

Serving Sonoma, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+32

Recommended by100%of homeowners
Avatar for SunRun LLC
SunRun LLC
5.0(
12
)
Energy Audit - For BusinessHome Energy Audit

Serving Sonoma, CA and surrounding areas

In business since 2007

Free estimates

California homeowners can receive fully funded solar at no cost and begin paying less on your electricity bills per month. No purchase of equipment, no permit fees, no install fees and no liability of the system. Begin receiving your energy with the nation's leading residential solar provider since 2007, rated A+ on BBB for 19 years! For a limited time, as a thank you, following install SunRun will pay you $1,000 cash!\nSunRun has been lowering electric costs for homeowners across the nation since 2007. SunRun offers a no purchase solar option for customers. The system is owned, maintained, monitored and insured by SunRun so the customer's experience is hassle free. Start receiving electricity at a low, set rate per month, lower than your local utility provider, with rate protection. Following install, get $1,000 dollars cash, as a thank you from SunRun. Perhaps you don’t like the idea of an expensive purchase, but you like the idea of cheaper electricity bills for 300 months. That’s 25 years. SunRun has been providing communities around the nation with renewable sources of energy and top notch quality customer service with an A+ Better Business Bureau (BBB) rating since 2007. If it's a new home, old home, house or condo, we've got you covered! SunRun believes in a planet run by the sun. Together, we are creating a sustainable future where everyone can access power they need, when they need. When you make the switch to SunRun, the benefits of solar are pretty clear. We give you the power right back at a reduced, set rate per kilowatt-hour, lower than your local electricity provider.\n\n*Power Purchase Agreement (PPA)- Monthly Low Flat Rate For Electricity\nNo Purchase. No Down Payment. No Loan or Lease Required.\nBegin saving on your monthly electricity charges. Receive your energy at a set rate, lower than the local utility provider. No additional fees, no penalty rates, no tier or time of use structure. Use your energy freely.\n

Install!
Start saving on electric charges
Install in San Diego
Wonder What We Do??
Additional Photos

+8

Recommended by100%of homeowners
Avatar for Independent Powur Solar Energy Consult.
Independent Powur Solar Energy Consult.
5.0(
5
)
Energy Audit - For BusinessHome Energy Audit

Serving Sonoma, 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
Avatar for Green NRG Inc.
Green NRG Inc.
4.1(
62
)
Energy Audit - For BusinessHome Energy Audit

Serving Sonoma, CA and surrounding areas

In business since 1999

Emergency services offered

Credit card accepted

"We are so happy with our solar panels and knowing we are utilizing the sources naturally given to us to acquire energy. We are hoping to see the difference it will make on our bill. The team and company at Green NRG involved have made this process so easy and educational they have been incredible to work with. I can't say between the professionalism when I called with questions they were great. We would recommend you without hesitation as we are 110% satisfied."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Recommended by90%of homeowners
Avatar for Attic Masters
Attic Masters
4.7(
33
)
Energy Audit - For BusinessHome Energy Audit

Serving Sonoma, CA and surrounding areas

In business since 2010

Free estimates

Credit card accepted

We are a C2 Licensed Contractors specializing in Attic Insulation removal & replacement. All our work comes with an instant 1 year guarantee. Customer service is our first priority and we will go out of our way to reach 100% satisfaction.

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

Recommended by95%of homeowners
Avatar for Better Earth Construction
Better Earth Construction
5.0(
3
)
Home Energy Audit

Serving Sonoma, CA and surrounding areas

In business since 2020

Free estimates

Credit card accepted

Better Earth is the South West's trusted energy expert. With years of experience in the trade, our company has the expertise to handle any project, big or small. Call today to learn more about our current service offerings!

Response time2 hrs
Response rate91%
Recommended by100%of homeowners
Avatar for Slingshot Power
Slingshot Power
4.7(
3
)
Energy Audit - For BusinessHome Energy Audit

Serving Sonoma, CA and surrounding areas

In business since 2012

Free estimates

Credit card accepted

Slingshot Power has multiple offices throughout Central California & strives to make your change to clean energy simple and affordable. Slingshot Power also assures its customers will receive the highest efficiency by conducting annual maintenance on every system we install. Everyone desires to lower their energy bills and solar is your answer. We help people make the switch from expensive dirty energy to enjoying their own efficient power generation system. Give us a call and schedule your free in-home energy assessment with a qualified Solar Adviser today! Or, if you have questions if solar is right for you please contact us and we'd be happy to speak with you.

Recommended by100%of homeowners
Showing 1-10 of 31
Energy Efficiency Auditing FAQs, answered by experts

ENERGY STAR®-certified windows are the most energy-efficient windows on the market. This certification means that the window meets strict efficiency guidelines set forth by the Environmental Protection Agency. While they might cost more upfront, they can save you money on your energy bills in the long run. ENERGY STAR®-certified windows lower household energy bills by an average of 12% annually.

Yes, most audits include a report with prioritized recommendations for improving energy efficiency. Confirm with your auditor.

A blower door test shouldn’t take more than an hour, and most can be completed in less than 30 minutes. Expect the test to take longer once you start searching for leaks with thermal imaging or want to include sealing such leaks in the time estimate. The test doesn’t take much time and can’t be rushed, but it will take longer in large homes or those with many air leaks.

Common warning signs of an overloaded electrical panel or meter box include frequent circuit breaker tripping, flickering or dimming lights, scorch or burn marks, and a burning scent coming from the panel. A circuit breaker trips as a protective measure to prevent overheating and potential fires. If you observe any of these signs, turn off the affected circuit breaker and move some devices to a different circuit. If the problem persists after turning the breaker back on, you should contact a professional electrician to resolve the issue.

Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.

The Sonoma, 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.