Hayward, CA Heating and Air Conditioning Services
Check out what our customers are saying about Certified Heating and Air Conditioning – Air Conditioning and Heating Services!
Local Reviews
for Hayward, CA
Chris and Juan are the best installers hands down!
Christopher - Hayward, CA 94542
Extremely professional, high quality craftmanship on a comprehensive AC install. Their custom work to make it work for my home's set up is impeccable and were extremely communicative and informing throughout the process, and were an absolute pleasure to work with.
HaywardCA94542 37.665-122.03 Response from Certified Heating and Air Conditioning:
Hi there Christopher! Thank you for sharing your experience with us! We love the great feedback on our valued installation teammates Chris and Juan. We hope you enjoy your new Air Conditioner! Thank you so much for letting us be of service to you!




Excellent service, ahead of time, and always trustworthy!
CRoss - Hayward, CA 94542
If you need a go-to trustworthy business with outstanding customer service, knowledge, and fair assessments go with Certified. You can't find another company better in the Bay Area.
HaywardCA94542 37.665-122.03 Response from Certified Heating and Air Conditioning:
Hello CRoss, Thank you for sharing your review! We are happy that you allowed us to serve you. Welcome to our Certified Family. We will always take care of our clients. -Certified Customer Care Team.




Awesome service by Mateo
Christopher B - Hayward, CA 94544
Mateo was fantastic. He came for my spring service and found that the capacitor in the AC unit was out of spec and the squirrel cage of the blower needed cleaning. He had the capacitor on the truck, which was awesome and was able to clean the blower making it like new again after years of build up. Glad to have my system in top shape for the hot season !
HaywardCA94544 37.6175-122.035 Response from Certified Heating and Air Conditioning:
Hello Christopher, Thank you for sharing your awesome experience with us. Mateo is a gem and a great teammate here at Certified. We are happy to have your air-conditioner running in tip-top shape. -Certified Customer Care Team




Jerod W.
In Hayward highland neighborhood, client stead that a company came out and installed new condenser, but found an issue with the coil. The coil is an old coil doe an old r22 system. The new condenser is for r410 system. Whent over the required fixes for the system to get it back and running looking forward to do the work and getting the job done.
Galen S.
In the Hayward Highlands neighborhood of Hayward, California. Client had a company install a condenser but did not install a new evaporator coil. The old coil has R-22 refrigerant and is not compatible with the new condenser. We looked at solutions to fix the current issues and look forward to getting everything working properly.

Jeremiah S.
In the Hayward area performing a furnace diagnostic! This 2 year old was said to be running a little funny. After inspecting all areas of this furnace, nothing was detected which is always good news! We recommend getting maintenance done once a year for your furnace to ensure it remains running properly!


Diego C.
In Hayward this afternoon performing a furnace maintenance and a/c safety check for the osaze residence. They recently got new attic insulation through us and have noticed a difference tremendously! Both systems were running up to par after today’s scheduled maintenance.


Jeremiah S.
In the Hayward area performing a furnace diagnostic! This 4 year old system was not starting properly due to a Flame sensor not being cleaned! This is why it is very important for maintenances to be done once a year!