Serving Berkeley, Oakland, and Alameda, Contra Costa, and Marin Counties!
Hassler tech in truck

To keep your heating and cooling systems at peak performance, your furnace and air conditioner should be serviced regularly. The EPA Energy Star Program®, which helps individuals protect the environment through energy efficiency measures, recommends that your home’s heating and cooling system be properly serviced and maintained at least once a year (though PG&E recommends twice per year) to ensure the maximum energy efficiency.

At Hassler, we encourage our customers to conduct regular maintenance of their home’s heating and cooling systems. We are proud to offer fabulous maintenance plans and packages for your El Cerrito, Berkeley, and San Rafael area home.

Seasonal Inspection & Cleaning

Our team at Hassler recommends bi-annual (Spring/Fall) maintenance service inspections and cleaning of your heating and cooling systems. We’ll help to maximize the life expectancy of your system by providing you with regular service checks throughout the year.

What does the VIP Club Membership Include?

Our dedicated staff will perform a thorough, multi-point inspection of your system to ensure that it is running at optimal condition. Our inspections ensure that your heating and cooling equipment’s life is extended, while energy consumption and utility bills are kept to a minimum. Our services, and their benefits, include:


  • Extended equipment life
  • Improved equipment capacity
  • Boosted equipment efficiency
  • Lower utility bills
  • 15% discount on repair service 
  • 15% off replacement parts
  • Hassler’s Service Warranty
  • “Priority Customer” status
  • Convenient monthly payments

Agreement Services

During our performance tune-ups, our team will:

  • Validate heat exchanger
  • Inspect cooling coil (if accessible)
  • Clean or replace filter(s)
  • Inspect condenser coil
  • Lubricate all moving parts
  • Verify air flow
  • Measure temperature difference
  • Measure all volts and amps
  • Test all safety controls
  • Tighten all electrical connections

You want to ensure that your equipment is running at its best as well as save money on energy costs and repair bills.  Our team services homes across Alameda, Contra Costa, and Marin counties.

Please get in touch to sign up for a preventative service agreement! 

Start saving with our VIP Program

Talk to our team 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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