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Licensed HVAC Contractor · Verified

Licensed HVAC contractor for Bay Area homes

Heating and cooling equipment is expensive, sized to your home, and tied to permits and refrigerant rules. On NorTech, HVAC work that needs a license is booked only with an independent contractor whose California C-20 license we have verified, so the system in your home is installed by someone the state recognizes for the trade.

California C-20 contractors only
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Work that needs a licensed HVAC contractor

Furnace and air-conditioner replacement
Whole-system HVAC replacement
Mini-split heat pump installation
Ductwork installation and repair
Equipment changeouts that need a permit

The license, and how we check it

California class C-20: Warm-Air Heating, Ventilating and Air-Conditioning

California HVAC contractors hold a C-20 license. The state licensing board website lists every license by number, and we check status and expiry before a contractor can take licensed HVAC work.

Look up a license on the state board site · How licensing works on NorTech

Smaller jobs and bigger jobs

Small jobs under the California handyman exemption (under $1,000, no permit) can include basics like a thermostat swap. System replacement, ductwork and refrigerant work go to a licensed HVAC contractor.

Smaller hvac jobs: Furnace Repair, AC Repair, Air Duct Cleaning, HVAC Maintenance & Tune-Up, Whole-House Fan Installation, Indoor Air & Comfort Upgrades, Boiler, Radiator & Hydronic Heat Service, Thermostat Zoning & Control Upgrade.

Licensed contractor only

Book licensed HVAC contractor services

HVAC System Replacement
Full furnace/AC system replacement, not a repair — sized, permitted, and installed by a verified C-20 HVAC contractor.
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Mini-Split Installation & Repair
A new ductless mini-split system installed, or an existing one diagnosed and repaired — always a verified C-20, EPA-608-certified HVAC contractor, since this is a sealed refrigerant system.
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Ductwork Installation & Repair
New ductwork or repair of existing ducts — always a verified C-20 HVAC contractor.
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Frequently asked

Hiring a licensed HVAC contractor: common questions

Yes. System replacement is permitted work and is booked only with a verified C-20 contractor on NorTech.

C-20 is the California contractor license class covering warm-air heating, ventilating and air conditioning.

Sizing is part of a licensed HVAC job. The scope your contractor confirms with you covers the equipment, the install and the permit.

They are installed by the same licensed trade. A mini-split job has its own page, with its own options and up-front quote.

Use the contractor license lookup on the state licensing board website with the number on your booking.

Didn’t find your answer? Nova, our AI assistant, is in the chat bubble in the bottom-right corner and can help anytime.

Check your coverage

Is a licensed HVAC contractor available near you?

Enter your ZIP to check coverage and see your price. Licensed work is booked only with a contractor whose license NorTech has verified.

Are there pros in your area?

Enter your ZIP code and we’ll point you to your local hub.

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Licensed electrician · Licensed plumber · Licensed roofer · Licensed general contractor · Licensed specialty contractor · How licensing works

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