*The Angi rating for Energy Efficiency Auditing companies in Foothill Ranch, 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 Foothill Ranch, 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 14, 2025
Serving Foothill Ranch, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"Perfect. All done in one day and the installation looks like it was done by a surgeon."
+31
Serving Foothill Ranch, CA and surrounding areas
Approved
In business since 2023
Free estimates
Emergency services offered
"They simply did a great job. I had them remove the old insulation, install new batt insulation, and add radiant barrier in my attic. Now my attic and house are a whole lot cooler. It is noticeably cooler in the house. The person who contacted me was Dustin. He was very professional and did a great job explaining things to me and laying out my options. The crew, which included Aldo, Roman, and Aaron were very professional and respectful to the care of our home and performing their job. I would definitely recommend and am willing to rehire them again for possible future projects. Thanks guys."
+33
Serving Foothill Ranch, CA and surrounding areas
Approved
In business since 2020
Free estimates
Offers commercial services
"excellent service very good price lower the price of what you paid for electricity Stephanie she nice and helpful"
Serving Foothill Ranch, CA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
Empowered Solutions is committed to excellence in 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. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n
Serving Foothill Ranch, 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 Foothill Ranch, CA and surrounding areas
In business since 2005
Free estimates
Emergency services offered
"Raymond and team did an excellent job installing an outdoor outlet for an electric vehicle!! We will absolutely call them for our next project."
+18
Serving Foothill Ranch, CA and surrounding areas
In business since 2007
Free estimates
"Trevor is a outstanding representative and was thorough. He gave us a very detailed presentation and told us all our options for solar panels. Great customer service!"
+8
Serving Foothill Ranch, CA and surrounding areas
In business since 1998
Free estimates
Credit card accepted
"The guys an Independent Energy Solutions helped me finish the solar installation on my house, ensuring 100% code compliance, and finalizing the connections to the grid. They were extremely responsive and very quick. They have since helped a number of the homeowners in our neighborhood fix and/or upgrade systems originally installed by Shea Homes (original home builder) in 2002 and 2003.
"
+3
Serving Foothill Ranch, CA and surrounding areas
In business since 2006
Free estimates
Credit card accepted
"We purchased the home energy audit with the understanding that we would be receiving a more extensive analysis of our home energy usage along with possible solutions. Ultimately, the process was more about a presentation for solar panels that anything else, which was not what we were looking for when we purchased the offer. Richard was very professional and thorough in his presentation and presented options regarding areas to save in terms of energy usage but those areas were not as thoroughly explored as the solar discussion. Green Source Energy should be more direct about what the Home Energy Audit entails so buyers can make an informed decision."
Serving Foothill Ranch, CA and surrounding areas
In business since 2004
Free estimates
Emergency services offered
"A very thorough job. Extremely professional. GREAT JOB AND QUICK!! He provided everything. Payment as well, extremely easy. I would definitely recommend over and over and over again. Thank You!!!"
+81
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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