
Serving Hayward, CA and surrounding areas





Serving Hayward, CA and surrounding areas




Serving Hayward, CA and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"We had a wonderful experience with Comfort Energy! The service person, whose name was Chance, did a thorough evaluation of the problem with a focus on saving us as much money as possible, to either repair or replace our 30-year-old heat furnace. He quickly determined that our inlet filter was too dense (it was a Merv 11 and should have been a Merv 8) and that that was probably causing the heater to go off an on every 5-10 minutes. He then tested and confirmed his hypothesis. He also performed a CO test to make sure there wasn't anything more serious going on. Finally, he gave us a good idea of replacement options, which we should probably do before the next Winter, but not necessarily right away. All in all, this is exactly the kind of assessment we needed, and it cost orders of magnitude less than what was estimated by the first service company we had come out. Chance was great, and Comfort Energy is our go-to for heating and cooling service and/or installation from now on."





+12

Serving Hayward, CA and surrounding areas
Approved (Corporate)
In business since 1981
Warranties offered
Customers say: Super punctual
"The crew from Albert Nahman did a great job from start to finish. The project was to replace the original ductwork in our 60 year old house. Tom provided excellent advice for the estimate then Bryan’s crew did the job, 2 days, within a week of my acceptance of the proposal. Great work."





+73

Serving Hayward, CA and surrounding areas
Approved
In business since 2025
Free estimates
Emergency services offered
"Rittinger responded quickly. Alan, the tradesman they sent over was professional and quick. I hired them to install a clothes dryer vent and to open up a vent in my garage for the hot water heater. The work was high quality and installation was clean."





+2

Serving Hayward, CA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Elite HVAC was a great company to work with the owner is very passionate about his trade he provided us with different options for our system replacement that we did not even know existed we ended up with a Daikin product with a 12 year replacement warranty we absolutely love it we recommended the to our neighbors and they are on his schedule for replacement for next week I?m comfortable knowing their experience will be just as good as ours !"





+14

Serving Hayward, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Emergency services offered
"I was extremely impressed with the service provided by Air Sharks, who replaced my aging furnace and damaged heat ducts. Elizabeth provided a detailed explanation in a friendly, professional and understandable way. Pricing seemed reasonable, and was 25% below a previous estimate. Daniel and his crew did a fantastic job removing and replacing the new furnace and the duct system in a very tight crawl space. They left the furnace looking absolutely beautiful and clean. I highly recommend them"





+22

Serving Hayward, CA and surrounding areas
Approved
In business since 1953
Free estimates
Warranties offered
"excellent work with good price!"





+16

Serving Hayward, CA and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Project done."





+18

Serving Hayward, CA and surrounding areas
Approved
In business since 2004
Free estimates
Warranties offered
"Great except problem was not completely solved. "





+5

Serving Hayward, CA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Slightly misquoted the job, but made up for it and did a fantastic job."





+14
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