*The Angi rating for Energy Efficiency Auditing companies in Vallejo, 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 Vallejo, 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 July 13, 2026
Serving Vallejo, 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 Vallejo, 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 Vallejo, CA and surrounding areas
Approved
In business since 2014
Free estimates
Credit card accepted
Enact Systems Inc. is committed to excellence 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. We have been in business since 2014, and our accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of the interests of our customers and make their concerns the basis of our business.
Serving Vallejo, 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 Vallejo, 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 Vallejo, 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 Vallejo, 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 Vallejo, 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 Vallejo, 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."
+12
Serving Vallejo, 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
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