Contact A-1 Guaranteed – Free Estimates on All New Equipment

(707) 645-0734 and (925) 609-8800

To contact us via email and tell us a little bit about what it is that you’re looking for, feel free to use the form below and we will contact you as soon as possible.

Our Service Areas

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General Information

Business Hours are 8:00 AM to 5:00 PM Monday – Friday and Saturdays by appointment.
Office will be closed the 3rd Tuesday morning of each month for company-wide training.
A-1 Guaranteed Heating & Air, Inc.CA license # 719381
1768 Broadway, Vallejo, CA 94589 (See map below)

A-1 Guaranteed Phone Numbers

TOLL FREE : 888) 421-2473
Vallejo : (707) 645-0734
Fairfield : (707) 421-8782
Contra Costa : (925) 609-8800
FAX : (707) 649-2701

A-1 Guaranteed Emails

Service
service@a-1guaranteed.com
Maintenance
Diane@a-1guaranteed.com
Free Estimates
info@a-1guaranteed.com
Marketing & Personnel
Krissyh@A-1Guaranteed.com
A-1 Guaranteed Heating & Air Conditioning
1768 Broadway St. Vallejo, CA 94589

A-1 Guaranteed Heating & Air proudly serves Solano, Napa and Contra Costa Counties, Fairfield, Vacaville, and the Bay Area. Call us at (707) 645-0734 to see what we can do for your home or business.

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