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OUR SERVICE AREAS
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 Phone Numbers
TOLL FREE : (888) 421-2473
Vallejo : (707) 645-0734
Fairfield : (707) 421-8782
Contra Costa : (925) 609-8800
A-1 Guaranteed Emails
Service
service@a-1guaranteed.com
service@a-1guaranteed.com
Maintenance
maintenance@a-1guaranteed.com
maintenance@a-1guaranteed.com
Free Estimates
estimate@a-1guaranteed.com
estimate@a-1guaranteed.com
Marketing & Personnel
marketing@a-1guaranteed.com
marketing@a-1guaranteed.com
A-1 Guaranteed Heating & Air Conditioning
1768 Broadway St. Vallejo,
CA 94589
Contact us Today
Why Choose
A-1 Guaranteed?
- Voted best heating/cooling company for 16 years
- Voted Best of The Bay for 5 years of KRON 4 TV
- Commercial and Residential Installation
- Angie’s List Super Service Award for 4 Years
- Energy Upgrade Participating Contractor
- Factory Trained Installers and Techs
- Drug-free Environment Enforced and Maintained
- Better Business Bureau Honor Roll 24 Years
- Diamond Certified Company
- North American Technician Excellence (NATE) certified
- Bay Area Certified Green Business
- All employees fully background checked for your safety
