Serving Alameda, Contra Costa, Marin, and Sonoma Counties!

Hassler Heating and Air Conditioning, Inc. provides exceptional residential heating and cooling services with a focus on improving your home's energy efficiency.

We serve the counties of Alameda, Contra Costa and Marin with particular focus on those homes with special heating and cooling requirements. In retrofitting old systems as well as remodeling projects, Hassler will create a custom system that is visually and aesthetically matched to your home, giving it state-of-the-art technology (such as high efficiency and zoned systems) and a welcome look and feel. Hassler is aware that many homes’ original architectural structure will not accommodate the easy-install, pre-fab systems that many HVAC companies use. Whatever your home comfort needs are, Hassler uses equipment and materials above industry standards including energy efficient options in our installations of heating and cooling systems. Additionally, we install and repair, programmable thermostats, filtration systems, heat pumps, ductless split systems, ducting, water heaters, humidifiers, and more.

California Contractors License: # 770180

Contact us and learn how our experienced team can increase the comfort of your home.

Looking for experts to help upgrade your home?

Call Hassler today!

510-848-3030

Schedule Service

Get Started!
Schedule the installation of any air conditioning equipment or furnace, and receive a free, smart, wifi-enabled thermostat.
Receive a $499 value for only $100 with this limited time offer.
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Nate Hassler Heating
angie's list super service award 2016
2017 Carrier Presidents Award Hassler Heating
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BayRen+ Home Rebate Program
BBB Accredited
diamond certified Hassler Heating