*The Angi rating for Energy Efficiency Auditing companies in Fairfield, 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 Fairfield, 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 November 30, 2025
Serving Fairfield, 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 Fairfield, 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 Fairfield, 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 Fairfield, 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 Fairfield, 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 Fairfield, 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 Fairfield, CA and surrounding areas
In business since 2017
Free estimates
Emergency services offered
"Absolutely Great!! I am so pleased and happy with the work that was done!! I would certainly have more work done by this company when I need to!!!"
+25
Serving Fairfield, CA and surrounding areas
In business since 1999
Emergency services offered
Credit card accepted
"I had 5 vendors bid the job and they were the lowest cost, I did not feel I was being pressured to buy anything I did not want. They developed the plans and worked with the City to get the permit. Contacted me well ahead of time to setup an install date. They were there right on time, worked the whole time completing the project on time with no problem.
Did all the foot work with PG&E to get the meter turned on. and once everything was completed walked me through the monitoring program and provided a simulated PG*E bill and explained what the billing would look like. They provided the stamped plans, permit card and all the warranties that support the equipment install.
"
+12
Serving Fairfield, CA and surrounding areas
In business since 2015
Free estimates
Emergency services offered
"The service was performed at a very high level and completed in a timely manner. The team worked with integrity and exhibited professionalism. I highly recommend them for any solar and energy needs."
Serving Fairfield, 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!
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