HVAC contractor (C-20) in Modesto, CA
9 licenses · checked Oct 27, 2026
There are 9 HVAC contractor (C-20) licenses with an address of record in Modesto, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.5% of the 1,847 such licenses statewide; Modesto ranks #49 of 425 CA cities for this license type. They are spread across 7 ZIP codes; the most common are 95351 (3), 95357 (1), 95354 (1). Most list Stanislaus County. By business type: Corporation 5, Sole Owner 4. The median first-issue year is 2016; the oldest license dates from 2015. 3 of them come up for renewal or expiration in the next 12 months, so re-check status before you sign a contract.
What a HVAC contractor (C-20) license covers
Warm-Air Heating, Ventilating and Air-Conditioning (C-20) covers furnaces, heat pumps, air-conditioning units, ducts and ventilation systems.
How to verify a license
Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Official lookup: CSLB Instant License Check.
HVAC contractor (C-20) licenses in Modesto
Showing 9 of 9, A to Z. Listing order is alphabetical, not a recommendation.
- Cool - Tech Heating & AIR Conditioning#1000179 · 95357
- Effective Solution Heat & AIR INC#1048178 · 95354
- Elite AIR Masters#1059512 · 95356
- Geske Heating & AIR#1017790 · 95355
- Hvacrmedic INC#1017185 · 95350
- RS Mechanical Heating & AIR INC#1039812 · 95351
- TMC Heating & Cooling#1016192 · 95351
- Tritemp INC#1039829 · 95352
- Vlady AIR Mechanical INC#1000713 · 95351
Frequently asked questions
How many HVAC contractor (C-20) licenses are in Modesto?
9 active licenses in the CSLB License Master data checked Oct 27, 2026 (0.5% of CA).
What does a HVAC contractor (C-20) license cover?
Warm-Air Heating, Ventilating and Air-Conditioning (C-20) covers furnaces, heat pumps, air-conditioning units, ducts and ventilation systems.
How do I verify a HVAC contractor (C-20) license in Modesto?
Enter the license number in CSLB Instant License Check and confirm the status is active, the classification matches the work, and the contractor has a current bond and workers' compensation coverage (or a valid exemption). California requires the license number on contracts and advertising. Use the license number shown here with the CSLB Instant License Check.
How many Modesto HVAC contractor (C-20) licenses expire soon?
3 of 9 have an expiration date in the next 12 months. A license that lapses must be renewed before the holder can work under it again.
Other license types in Modesto
General building contractor (65) · Plumbing contractor (C-36) (17) · Painting contractor (C-33) (16) · Electrical contractor (C-10) (11) · Flooring contractor (C-15) (10) · Cabinet and finish carpentry contractor (C-6) (10) · Tile contractor (C-54) (9) · Landscaping contractor (C-27) (8) · General engineering contractor (6) · Roofing contractor (C-39) (5) · Concrete contractor (C-8) (5) · Low-voltage contractor (C-7) (5)
All HVAC contractor (C-20) licenses in CA →
Source: CSLB License Master. Licensed California is independent and not affiliated with the licensing agency. Data checked Oct 27, 2026.