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Contractor LookoutCalifornia

Licensed HVAC Contractors in Fairfield, California

Updated November 1, 2026 from CSLB's public license file · C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor

  • 29licensed HVAC contractors
  • 29active (Clear)
  • 0%with a suspension
  • 0%workers' comp exempt
  • 10.2 yrsmedian time licensed
  • 44.8%corp / LLC / partnership (55.2% sole owner)
  • 3new in the last 12 months
  • —change tracking began November 1, 2026

CSLB's public data lists 29 HVAC contractors with a mailing address in Fairfield, and 29 of them (100%) show a Clear primary status.

The share with a suspension, 0%, is 4.1 points lower than the Solano County rate for the same license (4.1%). About 0% report a workers' comp exemption, roughly the statewide norm for HVAC contractors.

3 of these licenses are less than a year old, while 55.2% have been held for 10 years or more. The median is 10.2 years.

In California this work generally calls for the C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor license (or a B license when it is part of a larger multi-trade job). See the C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor guide for what the license covers.

How to check a HVAC contractor's license in Fairfield

  1. Look the company up by name or license number (search Fairfield). On the profile, confirm three things: Clear status, the C-20 license for this kind of work, and a contractor's bond on file.
  2. Before any money changes hands, verify the license on CSLB's own lookup. Our data comes from CSLB's weekly file, so a very recent change may not show here yet.
  3. Match the license holder's name to the name on the written contract and the person you meet. Ask for proof of workers' comp if anyone besides the owner will work on site. Hiring checklist.

All 29 HVAC contractors in Fairfield

Fairfield HVAC contractors sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed HVAC contractors in Fairfield
Business nameLicense #StatusYearsWorkers' compBond
North Bay Air Systems INC 325637 Clear 50 Insured On file
Kouri Graydon Plumbing Heating Air Conditioning 638681 Clear 34 Insured On file
Nielson Mechanical INC 725457 Clear 30 Insured On file
Fairfield Heating and Air Conditioning 749563 Clear 28 Insured On file
Superior Mechanical 777757 Clear 26 Insured On file
Redeemed Air 798887 Clear 25 Insured On file
Pelayo Heating and Air Conditioning 818473 Clear 23 Insured On file
Mike's Heating and Air Conditioning 861722 Clear 21 Insured On file
Plumbing Solutions 871320 Clear 20 Insured On file
Leon Air Systems 875230 Clear 20 Insured On file
Flores Mechanical Services 876638 Clear 20 Insured On file
G B C Electrical & HVAC Services 918015 Clear 18 Insured On file
Lissick's Heating and Air Conditioning 926689 Clear 17 Insured On file
Amigos Heating and Air 957980 Clear 15 Insured On file
Golden State Comfort Systems INC 1017220 Clear 10 Insured On file
Silvermark Construction Services INC 1019403 Clear 10 Insured On file
Vacaville Heating and Air Conditioning 1041070 Clear 8 Insured On file
Indoor Air Technologies 1060955 Clear 6 Insured On file
Tradewinds Cooling Limited Liability Company 1066807 Clear 6 Insured On file
Clean Breeze Air 1074492 Clear 5 Insured On file
Marasigan Heating and Air 1074318 Clear 5 Insured On file
Ces Integrated Corporation 1091771 Clear 4 Insured On file
All Star A/C & Heating Ngov 1094269 Clear 4 Insured On file
New Age Heating & Cooling 1115768 Clear 2 Insured On file
Discount HVAC & Appliance Repair 1127109 Clear 2 Insured On file
Go Mechanical 1142449 Clear 1 Insured On file
Bluesky Heating and Air 1158490 Clear <1 Insured On file
Brambila Heating & Air Conditioning 1158867 Clear <1 Insured On file
A-1 Comfort Heating & Air 1160544 Clear <1 Insured On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed HVAC contractors are in Fairfield?

CSLB's current public file lists 29 HVAC contractors with a Fairfield mailing address. 29 have a Clear status, and 93.1% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does a HVAC contractor need in California?

In California this work generally calls for the C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor license (or a B license when it is part of a larger multi-trade job). Any job of $1,000 or more in labor and materials needs a licensed contractor. Read our guide to the $1,000 rule.

How do I check a HVAC contractor's workers' comp?

Open the contractor's profile here to see the workers' comp type and insurer from CSLB's file. In Fairfield, 100% of HVAC contractors list a policy, 0% claim an exemption and 0% show no current coverage. Confirm the policy with CSLB's workers' comp search before work starts. How to check workers' comp.

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