HVAC contractor (C-20) in Redwood City, CA
6 licenses · checked Oct 27, 2026
There are 6 HVAC contractor (C-20) licenses with an address of record in Redwood City, CA, in the CSLB License Master data checked Oct 27, 2026. That is 0.3% of the 1,847 such licenses statewide; Redwood City ranks #90 of 425 CA cities for this license type. They are spread across 3 ZIP codes; the most common are 94063 (3), 94062 (2), 94061 (1). Most list San Mateo County. By business type: Corporation 5, Sole Owner 1. The median first-issue year is 2017; the oldest license dates from 2015. 4 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 Redwood City
Showing 6 of 6, A to Z. Listing order is alphabetical, not a recommendation.
- Aaron'S Mechanical Heating AND Cooling#1054483 · 94063
- Baez Heating & Cooling INC#1021193 · 94062
- C J E Heating & AIR Conditioning#1000743 · 94062
- Maples Plumbing & Heating#1048751 · 94063
- Plotke Plumbing & Heating INC#1048184 · 94063
- Rock Construction AND Consulting INC#1019296 · 94061
Frequently asked questions
How many HVAC contractor (C-20) licenses are in Redwood City?
6 active licenses in the CSLB License Master data checked Oct 27, 2026 (0.3% 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 Redwood City?
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 Redwood City HVAC contractor (C-20) licenses expire soon?
4 of 6 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 Redwood City
General building contractor (46) · Painting contractor (C-33) (16) · Landscaping contractor (C-27) (10) · Plumbing contractor (C-36) (7) · General engineering contractor (6) · Tile contractor (C-54) (4) · Electrical contractor (C-10) (3) · Roofing contractor (C-39) (3) · Glazing contractor (C-17) (3)
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.