heating & air conditioning services
Diamond Certified

Sales Service Installation

Call Us Today!

(707) 645-0734Vallejo

(925) 609-8800Contra Costa

Serving Solano, Napa and Contra Costa Counties
CA License # 719381

Contact Us Today!

Business Hours are 8:00 AM to 5:00 PM Monday - Friday and Saturdays by appt.
Office will be closed the 3rd Wednesday 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)
TOLL FREE : (888) 421-2473
Vallejo : (707) 645-0734
Fairfield : (707) 421-8782
Contra Costa : (925) 609-8800
FAX : (707) 649-2701
Service and Maintenance
For a free estimate on new equipment
Marketing & Personnel

A-1 Guaranteed Heating & Air Conditioning
1768 Broadway St. Vallejo, CA 94589

  • 15% Discount on all service repairs
    (all service parts and labor)
  • Never pay an overtime fee
    (no matter what time of day or night it is)
  • Priority customer status
    (immediately moved ahead of Non USA customers)
  • Lower operating costs
    (well maintained equipment uses less energy)
  • Increased capacity of existing system
    (restores equipment to as close to factory fresh specifications as possible)
  • Improved comfort
    (a clean indoor coil on an air conditioning system tends to remove more moisture)
  • Longer equipment life
    (well maintained equipment lasts longer)
  • Reduced equipment runtime
    (when your system isn’t running, it’s saving you money)
  • Transferable to another location
    (or to the new owner)
  • Fewer repairs
    (equipment that is regularly maintained normally have less costly repairs)
  • Safer system
    (equipment that is clean and well maintained tends to be safer to operate)