Comfort Starts


Schedule your appointment by calling us today! We offer free estimates on all installation projects.

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You can depend on Hassler Heating and Air Conditioning for emergency service and replacements.

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$25 off

Any Repair

*applies to any repair service over $200. Offer cannot be combined with any other offer or discounts. Expires 12-31-14

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Alameda | Contra Costa | Marin

Serving Alameda, Contra Costa, and Marin Counties

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Heating - Furnaces and Heat Pumps


Call us to achieve total energy efficiency, comfort, and health. Hassler keeps your heating systems running smoothly.

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Air Conditioning


If it is air conditioning service that you need, we are available to assist you.

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Home Performance

Home Performance

Our Home Performance services include energy audits, home energy ratings, and whole house energy evaluations. Learn more

Acreditations | Awards | Certifications

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Yelp Reviews

  • Kendra V.
    Kendra V.
    5 star

    Chris was our guy for fixing our heating system. Very congenial person, and quick. We had someone else come out and look at the furnace before calling...

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Contact Hassler @ 510-848-3030

For a consultation, please contact us to schedule an appointment. We are also happy to answer any of your questions about our expertise and services.

Schedule Your Appointment Today!
Hassler Heating and Air Conditioning, Inc.
1537 South 56th Street El CerritoCA94530 USA 
 • 510-848-3030