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


"Hassler Heating has always done a great job whenever I needed to call them. They are the only company I would call to service our Heating/AC unit. Paul came out yesterday to service our AC unit, he gave me a call ahead of time to let me know his ETA. He was very professional & explained everything for the work that was done. Hassler Heating also services the HVAC system at my job as well, I would recommend Hassler Heating!"


Average: 5 (1 vote)
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Berkeley, CA
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diamond certified Hassler Heating
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angie's list super service award 2016
2017 Carrier Presidents Award Hassler Heating
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