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Licensed HVAC Contractors in Modesto, California

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

  • 87licensed HVAC contractors
  • 83active (Clear)
  • 4.6%with a suspension
  • 0%workers' comp exempt
  • 11.9 yrsmedian time licensed
  • 62.1%corp / LLC / partnership (37.9% sole owner)
  • 7new in the last 12 months
  • —change tracking began November 1, 2026

Modesto is home to 87 HVAC contractors in CSLB's license file, ranking #1 of 4 Stanislaus County cities for this trade. 95.4% are Clear.

About 0% report a workers' comp exemption, roughly the statewide norm for HVAC contractors. The share with a suspension (4.6%) is close to the Stanislaus County rate for the same license (5.3%).

The median HVAC contractor here has held a license for 11.9 years (more than the statewide median of 11.6), and 7 licenses were 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 Modesto

  1. Open the HVAC contractor's profile from the table below (or search Modesto listings by name). Check that C-20 appears among its classifications and that the primary status reads Clear. What C-20 covers.
  2. Confirm it live with CSLB's Instant License Check. Statuses change between our weekly refreshes, especially workers' comp and bond suspensions.
  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.

50 of 87 HVAC contractors in Modesto

Modesto 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 Modesto
Business nameLicense #StatusYearsWorkers' compBond
Champion Industrial Contractors INC 174777 Clear 68 Insured On file
J S West and Company 291437 Clear 52 Insured On file
Trimble Rick Heating and Cooling 350357 Clear 48 Insured On file
Solecon Industrial Contractors INC 482556 Clear 41 Insured On file
Watson Heating & Air Conditioning 485517 Clear 40 Insured On file
Halley Air Conditioning & Heating 624988 Clear 35 Insured On file
Coit Services 678119 Clear 33 Insured On file
Tony's Plumbing Heating & Air 691786 Clear 32 Insured On file
De Hart Plumbing Heating & Air INC 724566 Clear 30 Insured On file
Central Valley Heating, Air & Electrical 731375 Clear 29 Insured On file
Electro - Air 2000 731491 Clear 29 Insured On file
Atlantis Heating LLC 748050 Clear 28 Insured On file
Rose Heating - Air Conditioning & Sheet Metal 756687 Clear 27 Insured On file
Trapasso's Heating & Air Conditioning 759066 Clear 27 Insured On file
A S A P Heating & Air Conditioning 764858 Clear 27 Insured On file
Cal - Ram Heating & Air Conditioning 782253 Clear 26 Insured On file
Dycus Heating and Air Conditioning INC 789608 Clear 25 Insured On file
Dermond Heating & Air Conditioning INC 810094 Clear 24 Insured On file
Air Zone HVAC INC 831574 Clear 22 Insured On file
Hill Fred Mechanical INC 857149 Clear 21 Insured On file
Xpress Heating & Air 856368 Clear 21 Insured On file
Summit Plumbing and Mechanical Corporation 861170 Clear 21 Insured On file
Cencal Mechanical Heating & Air INC 864271 Clear 21 Insured On file
Word W C Sheet Metal 877748 Clear 20 Insured On file
A L Affordable INC 883378 Clear 20 Insured On file
Air Heroes 889500 Clear 19 Insured On file
Air Tech Services INC 895425 Clear 19 Insured On file
Williams Heat & Air 904860 Clear 19 Insured On file
Armored Air 907535 Clear 18 Insured On file
Comfort Air Systems INC 912660 Clear 18 Insured On file
Turner Bret Heating & Cooling 913174 Clear 18 Insured On file
Yourk Heating and Air Conditioning 920797 Clear 18 Insured On file
D & M Heating & A / C 931862 Clear 17 Insured On file
Moreno's Heating and Cooling Services INC 936820 Clear 17 Insured On file
Honeys Air & Solar 942829 Clear 16 Insured On file
M D Smith Heating & Air Conditioning INC 954959 Clear 15 Insured On file
Cool Care Heating and Air Conditioning INC 961529 Clear 15 Insured On file
Airmergency INC 981481 Clear 13 Insured On file
Modern Heating / Air Conditioning Services INC 985001 Clear 13 Insured On file
Diaz Erik Heating & Air INC 987132 Clear 13 Insured On file
Litt Heating and Air Conditioning 991856 Clear 12 Insured On file
T & N Plumbing & Electrical INC 999455 Clear 11 Insured On file
Cool - Tech Heating & Air Conditioning 1000179 Clear 11 Insured On file
Vlady Air Mechanical INC 1000713 Clear 11 Insured On file
Tmc Heating & Cooling 1016192 Clear 10 Insured On file
Geske Heating & Air 1017790 Clear 10 Insured On file
Hvacrmedic INC 1017185 Clear 10 Insured On file
Rs Mechanical Heating & Air INC 1039812 Clear 8 Insured On file
Tritemp INC 1039829 Clear 8 Insured On file
Effective Solution Heat & Air INC 1048178 Clear 7 Insured On file

See all 87 HVAC contractors in Modesto

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 Modesto?

CSLB's current public file lists 87 HVAC contractors with a Modesto mailing address. 83 have a Clear status, and 86.2% 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?

Look for C-20 on the license. 87 businesses in Modesto hold it. Small jobs under $1,000 with no permit and no employees are exempt; everything else needs a license (details).

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 Modesto HVAC contractors, 0% are exempt (no employees), 96.6% insured and 3.4% without current coverage. Verify a policy with CSLB's insurer search (step by step).

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