*The Angi rating for Energy Efficiency Auditing companies in Fulton, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
*The HomeAdvisor rating for Energy Efficiency Auditing companies in Fulton, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
Last update on March 01, 2026
Serving Fulton, 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."
Serving Fulton, CA and surrounding areas
Approved
In business since 2000
Customers say: Quick response
"Apollo did a fine job assessing my townhomes energy needs. The energy report covered what I needed."
Serving Fulton, CA and surrounding areas
Approved
In business since 2017
Free estimates
Credit card accepted
Pinnacle Energy Solutions has become a staple of professionalism and quality work in San Ramon for years. With decades of experience, there is no job too large or small. Call today to schedule an appointment!
Serving Fulton, CA and surrounding areas
In business since 2000
Free estimates
Emergency services offered
"Excellent Service from planning through Execution and installation to final fine tuning. The folks communicated well and explained every detail of the step. Got permit and inspection done. It was seamless. Thanks. R."
+32
Serving Fulton, CA and surrounding areas
In business since 2007
Free estimates
"Spectacular! I had solar installed and Trevor was super helpful with the process. He made all the complicated paperwork easy. Just like that we have solar and I'd never go back! Double thumbs up for Trevor!"
+8
Serving Fulton, CA and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"well. some schedule slips that were not nrg 's fault"
+24
Serving Fulton, CA and surrounding areas
In business since 2017
Free estimates
Emergency services offered
"Trevor was very professional and the install went perfectly, thanks!"
+25
Serving Fulton, CA and surrounding areas
In business since 1999
Emergency services offered
Credit card accepted
"Idan was so helpful, explaining things to me. I am very pleased with the solar energy, my bills are lower and that is a good thing!!Plus it is clean energy, good for us all! Hope more people do it.
"
+12
Serving Fulton, CA and surrounding areas
In business since 2010
Free estimates
Credit card accepted
"Attic masters did a good job at my house by cleaning the ducts. I spoke to them prior and they were nice to me. they gave me several options and explain to me the difference between each one and they recommended me which one to choose. The work that they did was good and the people that did the actual work were very nice. I will hire them again.
"
+7
Serving Fulton, CA and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"Can never go wrong with them"
An energy audit costs about $420 on average, ranging from $100 to $2,250, depending on the size of your home, property, location, and the tests the auditor needs to perform. Keep in mind that the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit covers up to $150 of home energy audit costs. Common energy audit tests include:
Blower door test: $350
Duct testing: $100
HERS test: $375
HERS certification: $200
Infrared imaging: $200
The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency.
A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.
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 three levels of home energy audits include:
Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.
Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.
Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.
To find a reputable energy auditor, find a local company that offers energy audit services. Research the company’s reviews, methods, and certifications to find a reliable professional in your area. The most reputable energy audit companies are HEP-certified by the Building Performance Institute (BPI). Be sure to check our state licensing tool to review the local energy auditor guidelines to ensure you’re hiring a certified professional.
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