*The Angi rating for Energy Efficiency Auditing companies in McClellan Park, 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 McClellan Park, 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 April 20, 2026
Serving McClellan Park, 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 McClellan Park, 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 McClellan Park, 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."
+32
Serving McClellan Park, CA and surrounding areas
In business since 2007
Free estimates
"Trevor was super helpful through the entire process, great team that got us a cheaper monthly electric bill. Would recommend."
+8
Serving McClellan Park, CA and surrounding areas
In business since 2013
Free estimates
Credit card accepted
"Mr. Sunshine did an awesome job, was very responsive, and followed up after the installation to make sure everything was working properly. I definitely would recommend them for any solar project."
+1
Serving McClellan Park, CA and surrounding areas
In business since 1990
Free estimates
Credit card accepted
"Air conditioning in one zone stopped working over very hot weekend. Called three companies to get a quote on possibly replacing both zones before I spent money on repairing a 17+ year old unit.
Diamond was the first company with availability. Before they came over to give a quote, Bob called to ask me a few questions about the nature of the problem. He speculated over the phone of what the problem might be and what the cost of fixing it would be.
He arrived for the appointment at the appointed time and proceeded immediately to fix the unit while talking to me about an estimate to replace both zones (2 systems). He spent extra time hunting down an electrical connection issue in the unit and when done, checked out the flow readings of the system.
$258 dollars fixed the problem. Since I had scheduled him for a quote, he offered to remove the new part that he had just installed or I could leave it in and if I decided to buy a new system, they would credit the repair of this unit back against it. I elected to have him leave the fix in place.
Bob quoted me an exceptionally good price per unit for a quality Lennox system. In fact a competitor who came the following day said that he wanted to see a copy of a written quote because Diamond's price was too good.
Although I've decided for the time being to not replace both systems, I would select Diamond Heating and Air in a second!
"
Serving McClellan Park, 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"
+42
Serving McClellan Park, CA and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"Overall experience was excellent. The only problem we encountered was when there were 2 project manager changes. I did not hear anything for 2 weeks, but when I called and spoke to a manager I received a call that day and Tiffany (new PM) was very helpful and professional. She was prompt and honest with project timelines. I would highly recommend NRG to anyone looking to install solar. There will always be issues and problems, but the sign of a good contractor is how they respond."
+24
Serving McClellan Park, 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 McClellan Park, CA and surrounding areas
In business since 1999
Emergency services offered
Credit card accepted
"Matt was able to come out within a couple of days to check the solar pump for our pool. As it turned out, the pump needed only minor adjustments. He didn't charge for that, or even for the service call."
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.
From average costs to expert advice, get all the answers you need to get your job done.
Discover the average home energy audit cost, what impacts pricing, and how to save money on your audit. Get transparent, expert-backed cost info for homeowners.
How much is the average electric bill in the United States? Learn how much the average electric bill costs in your state and ways to reduce it.
Get a detailed breakdown of thermal imaging home inspection costs, including average prices, cost factors, and tips to help homeowners budget.
Saving energy on an HVAC system is an absolute must if you want to slash energy costs. Check out these 11 tips to make your HVAC system more energy-efficient.
Energy-efficient roofs can save money and help regulate your home, but that’s not all they can do. Here’s how you can benefit from an energy-efficient roof.
Worried about the stack effect in your house? It can render even the best HVAC system useless come winter or summer. Learn how to combat this and improve energy efficiency.
