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

Who Is Hassler Heating and AC?

Hassler Heating and Air Conditioning, Inc. provides exceptional residential heating and cooling services with a focus on improving your home's energy efficiency. Each and every member of the Hassler team is dedicated to improving your home comfort and decreasing your energy costs, all with minimal interruption to your home life.

Your Home is an Interconnected System

We provide heating and cooling services in Alameda, Contra Costa, and Marin counties, with a particular focus on those homes with special heating and cooling requirements. Our HVAC services are geared toward improving the indoor environment of your entire house, which requires looking at your whole home as a series of interconnected systems. Changes in one part of your home can affect the comfort and efficiency of multiple areas, and the Hassler team leaves no stone unturned until we can find the right solution for your comfort and energy goals. 

We are 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

Whether we are retrofitting old systems or tackling a remodeling project, Hassler will create a custom system that is visually and aesthetically matched to your home, giving you state-of-the-art technology (such as high efficiency systems that can be separated into comfort zones) with a pleasing look and feel. 

Californians Helping Californians

If you are going to entrust an HVAC contractor with your  indoor comfort here in the East Bay, shouldn’t they know a little bit about what it's like to actually live here? We are a company of Californians looking to help our friends, neighbors, and family to live more comfortably in the Northern California climate, while doing everything we can to reduce your energy costs. But you don't have to take our word for it!

See what other homeowners are saying about Hassler

Plus, many of our services can improve your indoor air quality,  like air sealing, air purifier installation, and even mini split installation.  Experience the Hassler Difference today!

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!


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Keep Everything Running Smoothly to Save You $$$ Down the Road
Convert both your gas furnace and gas water heater to a heat pump and heat pump water heater at the same time and get $2,500 for your old equipment.
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!
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