Hercules, 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 Hercules, CA
Great service
Brian - Hercules, CA 94547
The guys were on time and did a great job. Techs: Eric Chavez and Miguel Manzo.
HerculesCA94547 38.015-122.29



check the ac in my house
Ricardo - Hercules, CA 94547
Brittany came at 1pm per our schedule. she's very thorough and check the unit properly.
HerculesCA94547 38.015-122.29



Great service
Olga - Hercules, CA 94547-1624
HerculesCA94547-1624 38.0025-122.27





Brittany B.
Diagnosing a failed 18 year old water heater, the pilot light will not stay lit so the clients have no hot water here in Hercules, CA. We will be installing a new 40 gallon water heater to bring hot water back to the home. We installed their furnace and condenser a couple years ago and they are very happy with the system! Thank you for choosing Certified Heating & Air Conditioning!!



Brittany B.
Performing a diagnostic service on a 2002 Trane condenser in the Heritage By The Bay neighborhood of Hercules, CA. The house is currently in the middle of being sold and during a real estate inspection it was noted that the AC did not turn on. Checked the system and it was not getting any power, reset the breaker and the compressor kicked right on and began cooling the home. Thank you for choosing Certified Heating & Air Conditioning! We wish you the best of luck on your new adventure!!

Lucas G.
Performed maintenance on 15 year old Carrier Furnace. Unit has had issues for the last two years now with failing parts. Replaced a capacitor. Unit still needs other major repairs. Discussed with client about upgrading to a more reliable system rather than limping along anymore. The drain pan has rusted and is causing water damage to the ceiling.


Brittany B.
Providing estimate to add solar system and replace existing furnace with heat pump system so clients can maximize their solar benefits while also gaining the added bonus of having air conditioning! We look forward to working together to ensure our clients are comfortable for many years to come in their beautiful home in Hercules! Thank you for choosing Certified!
Yvonne G.
Ac diagnostic low voltage wiring making sure it’s up and running

Brittany B.
Diagnostic - system not heating.