4.1 
57 *The Angi rating for Heating And Air Conditioning Service companies in Fairfax, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Fairfax, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on January 30, 2026
Serving Fairfax, CA and surrounding areas
Approved
In business since 2013
Free estimates
Credit card accepted
"installed a new 4 ton A/C. Price is reasonable. Work completed in two days. all tests are passed, Inspected and signed off by the City inspector."
Serving Fairfax, CA and surrounding areas
Approved
In business since 2009
Free estimates
Emergency services offered
"Very prompt to respond to my call. Service person very pleasant and knowledgeable. Reviewed in detail what he thought problem was. Offered to have me sign up for regular service visits twice a year which made cost of this visit nothing so I agreed. Said they would order part he thought I needed and have it available if required which I appreciated. He wrote some descriptions of the HVAC system in his notes which described ducts as in " poor condition " but didn't mention that to me. I thought he should have. Will use again."
+16
Serving Fairfax, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Emergency services offered
"We had a totally broken HVAC system in our 30 year old house. They came in and fixed it in two days. The guys were very friendly and answered our questions. Our original salesperson was knowledgeable and respectful considering the state of our equipment at that time. Now we have heat for the rest of the Winter and AC for next year. Thank you!"
+2
Serving Fairfax, CA and surrounding areas
Approved
In business since 2008
Emergency services offered
Warranties offered
Enviro Heating & Air Conditioning Inc. 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 Fairfax, CA and surrounding areas
Approved (Corporate)
In business since 1981
Free estimates
Warranties offered
"Albert Nahman PHC installed new AC and Furnace for my house. I like them for several reasons -- 1. At first Tom explained in detail what equipment I need and how they work, and gave me a reasonable and detailed quote at end of the visit. 2. They offer interest free finance. 3. I got free upgrade for furnace when the original quoted is not available. 4. Their installer did good job, and cleaned up afterward. I highly recommend this company."
+73
Serving Fairfax, CA and surrounding areas
Approved
Super Service Award Winner
In business since 1968
Free estimates
Warranties offered
"Went above & beyond in service. Got the Furnace replaced, brought space heaters for the occupants, Got it done quickly & left no mess. Redid the duct work and worked well with the occupant. Thought this type of service did not exist anymore. Was pleased how quickly Furnace was replaced ."
+1
Serving Fairfax, CA and surrounding areas
Approved
In business since 2025
Free estimates
Warranties offered
"Huge shoutout to the team for an outstanding AC installation! From start to finish they were professional, punctual, and extremely knowledgeable. The installation was clean, efficient, and they took the time to explain everything before leaving. You can tell they really take pride in their work. Highly recommend them to anyone needing reliable HVAC service!"
Serving Fairfax, CA and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Very courteous and considerate communication and work. I was kept up to date and felt very assured throughout the whole process. I would definitely recommend them to anyone who needs HVAC work."
Serving Fairfax, CA and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Furnace replacement was excellently installed, and thus far has worked to perfection. I would highly recommend Red Mountain Heating and Air."
Serving Fairfax, CA and surrounding areas
Approved
In business since 2021
Warranties offered
Offers commercial services
"Rick and his team were awesome. They were very thorough, put everything they moved in my garage back and Rick made sure to have me check both the heater and AC once installation was complete. He also installed my smart thermostat for me. I would highly recommend Rick and his team."
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