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Licensed HVAC Contractors in San Mateo, California

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

  • 20licensed HVAC contractors
  • 18active (Clear)
  • 10%with a suspension
  • 0%workers' comp exempt
  • 20.6 yrsmedian time licensed
  • 70%corp / LLC / partnership (30% sole owner)
  • 1new in the last 12 months
  • —change tracking began November 1, 2026

There are 20 HVAC contractors based in San Mateo in CSLB's current file. 18 (90%) have a Clear status as of November 1, 2026.

About 0% report a workers' comp exemption, roughly the statewide norm for HVAC contractors. The share with a suspension, 10%, is 4.4 points higher than the San Mateo County rate for the same license (5.6%).

The median HVAC contractor here has held a license for 20.6 years (more than the statewide median of 11.6), and 1 license was issued in the last 12 months.

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 San Mateo

  1. Find the business in the list below, or search all 20 San Mateo listings, and open its profile. You want a Clear status and the C-20 classification (a B license can also cover it as part of a multi-trade job).
  2. Re-check the same number on CSLB's Instant License Check the day you sign; our copy is refreshed weekly and 10% of San Mateo listings here already show a suspension.
  3. Get the bid and contract in writing with the license number on it. If the job tops $1,000 in labor and materials, a licensed HVAC contractor is required by law. See the $1,000 rule.

All 20 HVAC contractors in San Mateo

San Mateo 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 San Mateo
Business nameLicense #StatusYearsWorkers' compBond
Lindstrom CO 244500 Clear 60 Insured On file
J W McClenahan CO 308818 Clear 51 Insured On file
Cp Mechanical 558197 Clear 37 Insured On file
Ace Heating & Air Conditioning INC 794984 Clear 25 Insured On file
Kissco Control Systems INC 801215 Clear 25 Insured On file
Wing Cary Plumbing & Fire Protection INC 815871 Clear 23 Insured On file
Advanced Solutions Heating and Air Conditioning INC 842594 Clear 22 Insured On file
Techpro Builders INC 860715 Clear 21 Insured On file
Air Temp Company 889684 Clear 19 Insured On file
Comfort Zone Heating & Air Conditioning CO 898653 Clear 19 Insured On file
Bayhill Heat & Air INC 917996 Clear 18 Insured On file
Cal State HVAC 965710 Clear 15 Insured On file
Mayen HVAC Services 978201 Clear 14 Insured On file
Rush Air Mechanical 1010774 Clear 10 Insured On file
Jc HVAC Service 1052029 Clear 7 Insured On file
Control Point Air 1068207 Clear 6 Insured On file
Sam's Refrigeration 1121437 Clear 2 Insured On file
Grovisors INC 1146325 Clear 1 Insured On file
Izmirian Roofing & Sheet Metal 277624 Susp: contractor's bond 54 Insured On file
Richards HVAC 433455 Susp: workers' compensation 43 None 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 San Mateo?

CSLB's current public file lists 20 HVAC contractors with a San Mateo mailing address. 18 have a Clear status, and 85% 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?

CSLB issues the C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor classification for this work. In San Mateo County, 90% of San Mateo's holders are Clear right now. The license requirement starts at $1,000 per job (the minor-work rule).

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

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among San Mateo HVAC contractors, 0% are exempt (no employees), 95% insured and 5% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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Guides