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

You depend on your heating and cooling systems for the comfort of your customers and your employees. We can help you lower your energy costs and avoid inconvenient breakdowns with maintenance agreements designed to keep your equipment in top working order.

We know that when your heating or cooling system is down – you need it fixed fast! You can depend on Hassler Heating and Air Conditioning for emergency service and replacements.

  • Leasing programs available
  • Customizable maintenance agreements
  • System replacements
  • Emergency service
  • UV air purification
  • High efficiency filtration
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.
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Keep Your Home Healthy!
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Home energy audit credited upon installation with Hassler
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with Heat Pump or Heat Pump Water Heater Conversion
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Apply for financing today!
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