Serving Berkeley, Oakland, and Alameda, Contra Costa, and Marin Counties!

Hassler offers services in retrofitting older homes with new and more energy efficient heating and cooling systems, and has extensive professional knowledge about the Bay Area’s specific heating requirements. In addition, we offer custom design and installation for remodeling projects, and can upgrade your existing heating system to a zone system – one the most effective ways to maximize comfort and energy efficiency in a larger home. Just ask us about the latest technology to serve your particular heating needs.

Save Now… Or Pay Later!

Because we are keenly aware of how important your heating system is, we specialize in cost-effective, energy efficient heating solutions, including the installation, repair, and continued maintenance of furnaces, water heaters and heat pumps. We want each of our customers to know that we provide our services with the goal of giving you peace of mind about every facet of your heating system. Hassler currently offers cost-effective installation, repair, and maintenance services for furnaces, heat pumps, and programmable thermostats.

Energy Upgrade California - Rebates Up to $6,500!

Hassler Heating and Air Conditioning is a participating contractor in the Energy Upgrade California Home Upgrade Program.

The Energy Upgrade California Home Upgrade program helps you make home improvements that can save energy and make your home more comfortable. These rebates of up to $6,500 reward you for addressing your home energy efficiency needs as a system instead of piece by piece. Your new high efficiency heating unit can be made affordable through Energy Upgrade California and Hassler Heating.

Hassler maintenance truck parked in a driveway

100% Satisfaction Money Back Guarantee On all Carrier® Installed Equipment

  • If for any reason you, the original purchaser, are not satisfied with your Carrier® system, Hassler will repair the problem to your satisfaction or remove the Carrier® products and refund the purchase price, subject to conditions and limitations. This guarantee will remain in effect for one year after the original installation date. This guarantee is non-transferable. Please contact us for conditions and limitations.

Ask us how we can help with your heating needs. Contact us today!

Stay warm for less, with an efficient heating system—

Installed by the pros at Hassler.


Schedule Service



David G.

Mike, apparently Rene and your team did such a good job the rebate is even a bit higher than expected. Thanks for the good work. Your commitment to qualifying and getting the rebate was a key factor of why my wife and I chose your company for the installation over other companies we received quotes from.

Berkeley, CA
David G.
Keep Your Home Healthy!
Home energy audit credited upon installation with Hassler
with Heat Pump or Heat Pump Water Heater Conversion
Apply for financing today!


Why Are My Furnace Filters So Dirty? Here Are 4 Reasons

furnace filters
Tuesday, December 22, 2015

East Bay area homeowners are going to be spending a lot more time indoors in the coming months. At Hassler Heating, we want our customers to have a winter that’s cozy and warm, especially as the holidays approach.

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BayRen+ Home Rebate Program
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