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

Have you experienced a breakdown with your home heating or AC system and need professional service? Hassler can help! Our NATE-certified technicians are the best in the industry. They will diagnose your problem quickly, give you options for the recommended repair and get you comfortable as quickly as possible.

Whether you are in need of a heating and air conditioning system, repair services or preventative maintenance, our skilled technicians can handle the job.

hvac repairs

Just like your car, your heating and AC systems need regular maintenance and repairs to operate at their best. Hassler Heating and Air Conditioning offers repair, service, and preventative maintenance for heating and cooling systems in El Cerrito, Oakland, and the surrounding East Bay area.

HVAC services

Diagnose and repair your heating and cooling equipment, replace your air filters, and sign up for a service agreement from the residential and commercial heating and cooling experts at Hassler. Hassler is the premier home performance contractor throughout El Cerrito, Berkeley, Mill Valley, and Oakland, CA.

Looking for emergency furnace or AC service?

Don't sweat it — call Hassler.


Schedule Service

Receive a $499 value for only $100 with this limited time offer.


Keep CO Out of Your Home

carbon monoxide in the home
Monday, December 28, 2015

With wet winter weather rolling into the Bay Area, homeowners are going to be spending a lot more time indoors.

Nate Hassler Heating
angie's list super service award 2016
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BayRen+ Home Rebate Program
BBB Accredited
diamond certified Hassler Heating