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    Contact Haddon

    Do you have questions about upgrading the existing heating and cooling system in your home, installing heating and air conditioning for your new construction project, or repairing your current HVAC system?

    Our knowledgeable staff is available 24/7 to answer your questions over the phone. We can also be reached via email at [email protected]

    You can also check out our list of Frequently Asked Questions.

    Our Service Area

    Our main head quarters is located in Concord, Ca, however we service most of the greater Bay Area in Northern California.

    We Service All of The Following Counties

    • Alameda County
    • Contra Costa County
    • Solano County
    • Lake County
    • Napa County
    • Marin County
    • Mendocino County
    • Sonoma County

    Click to see full list of cities we service

    HADDON HEATING & COOLING

    135 Mason Circle, Suite L
    Concord, CA 94520
    Phone: (925) 521-1380
    Fax: (925) 521-1381

    8 Digital Dr, Suite 100
    Novato, CA 94949
    Phone: (707) 578-5150

    Hours: Open 24 hours, 7 days a week.
    [email protected]

    Here For You
    For more than 30 years, Haddon Heating and Cooling has been installing and servicing energy efficient heating and air conditioning systems in the greater Bay Area. We use only the highest-rated systems, backed by a minimum 10 year warranty
    Giving Back
    Contact
    East Bay
    135 Mason Circle, Suite L
    Concord, CA 94520
    Phone: (925) 521-1380
    Fax: (925) 521-1381
    Available 24/7
    Email Us
    Licensed & Bonded
    •(Lic. #855456)
    • Major Credit Cards Accepted
    • Financing available to qualified home owners.
    • Proudly Serving Alameda, Contra Costa, Lake, Marin, Mendocino, Napa, Solano & Sonoma Counties