Does New York License HVAC Contractors? What the Business Needs Instead

Only locally, in our research.

Our research found no state HVAC contractor license, no state HVAC exam and no state HVAC continuing-education requirement; HVAC-related licensing is done by cities and counties.

The New York City Department of Buildings' skilled-trade license list names Electrician, High Pressure Boiler Operating Engineer, Master Plumber and Master Fire Suppression Piping Contractor, Oil Burner Equipment Installer, Rigger, Sign Hanger, Welder and its other trades — there is no general HVAC license on it.

What does apply statewide is federal: under 40 CFR 82.161, anyone who could reasonably be expected to violate the integrity of a refrigerant circuit while maintaining, servicing, repairing or disposing of appliances containing CFC/HCFC or non-exempt substitute refrigerants (such as HFCs) must pass an exam from an EPA-approved technician certification program, and that certification does not expire.

That federal rule reaches your hires, not a business license.

No single agency issues an HVAC business license in New York, in our research: the credentials an HVAC company typically operates under come from different local bodies, each scoped to a system type.

The New York City Department of Buildings licenses the Oil Burner Equipment Installer in two classes — Class A covers any oil-burning equipment and Class B covers equipment using domestic-grade fuel oils No. 1–4 — and its Licensed Master Plumbers cover gas piping, which includes gas piping for HVAC equipment; workers doing that gas piping need a DOB Gas Work Qualification.

Refrigeration belongs to a different agency: any New York City refrigerating system that needs an FDNY permit must be supervised while operating by a holder of the FDNY Q-01 Refrigerating System Operating Engineer certificate.

For residential work, Westchester County's Department of Consumer Protection requires home improvement contractors to hold a county license.

Ask the building or licensing department where your business works which of these it needs.

Our research found no state qualifier rule for an HVAC business, because our research found no state license to qualify.

The analogues are local.

On the piping side, the NYC Master Plumber license is the business license itself: the applicant must be an officer, partner or sole proprietor of the business, the business must have a New York City place of business in a zoning-compliant (commercial) location, and a corporate licensee must hold at least 51% combined controlling interest.

On the refrigeration side, a business running permitted refrigerating systems needs a Q-01 holder to supervise them, and FDNY requires Q-01 applicants to have a high school diploma or GED, EPA Universal Technician Certification, and one of three routes: a NYC High Pressure Boiler Operating Engineer, USCG marine engineer or Professional Engineer license; a 200-hour FDNY-certified Refrigeration Operating Engineer course with at least 25 hours of field or shop work; or 1 year of qualifying practical experience within the preceding 3 years.

The person-level credentials are their own topic; this page stays on the business.

None at the state level in our research: our research found no state HVAC contractor trade exam and no business-and-law exam.

The exams belong to the local credentials.

FDNY's Q-01 runs in two parts: the Z-51 computer exam, with a $60 application fee, then — after passing it — the Z-52 practical exam at $225, with up to three practical attempts at $225 each.

DOB's license exams are the LIC41 written application at $585, covering the Master Plumber, Master Fire Suppression Piping Contractor, Oil Burner Equipment Installer, High Pressure Boiler Operating Engineer and Gas Work Qualification written exams, and the LIC42 practical at $530.

DOB practical exams for the High Pressure Boiler Operating Engineer and Oil Burner Equipment Installer are not held in July and August, and candidates have 24 months from passing the written test to pass the practical.

Our research does not describe these exams' content outlines, so have your qualifier candidate check the exam materials FDNY and DOB publish.

Our research found no state HVAC contractor bond and no state insurance minimum, and we did not capture a bond requirement for the local credentials.

The insurance rule we did confirm sits on the NYC Master Plumber business license, which covers gas piping for HVAC equipment in New York City: those businesses must carry General Liability, Workers' Compensation and Disability insurance, and general liability must be at least $1,000,000 per occurrence.

We did not capture insurance requirements for the Oil Burner Equipment Installer license, the Q-01 certificate or county home-improvement licenses, so ask the office that issues your credential what it requires before you bid work.

There is no state HVAC contractor license fee to budget, because our research found no state license.

The local credentials carry their own fees: the DOB Oil Burner Equipment Installer license costs $100 and renews at $75 on a 3-year term.

The FDNY Q-01 renewal requires a 7-hour live A2L refrigerant training course from an FDNY-approved refrigeration school — live means in person or virtual — except holders who took the FDNY computer test after January 1, 2025.

The exam fees are as listed in the exams section above.

We did not capture a fee schedule for county home-improvement licenses, so ask Westchester County or your own county office for current costs.

Not established in our research.

Our research found no state HVAC contractor license for a reciprocity agreement to attach to, so recognition of an out-of-state credential is a local question.

On the closest analogue, our research found no reciprocity with other jurisdictions for the NYC Master Plumber license — an unconfirmed absence, so treat it as unknown rather than settled.

Before you move a business into New York or hire around an out-of-state credential, ask the city or county office that issues the credential your business needs what it accepts in experience, exams and fees.

Our research found no state HVAC contractor license and, in that research, no state rule on replacing a qualifier.

Plan around the credentials your business actually holds.

If the Q-01 holder supervising your permitted refrigerating systems leaves, those systems lose the supervision FDNY requires — you need another Q-01 holder before they keep operating.

On the Master Plumber side, whether one licensee may qualify more than one business, and the deadline to replace a departing licensee, were not verified in our research; the Department of Buildings' licensing rules are the place to check.

Because the Master Plumber licensee must be an officer, partner or sole proprietor of the business — holding at least 51% combined controlling interest when the business is a corporation — a departing licensee is an ownership question, not just a staffing one.

Three local entry points are confirmed in our research.

In New York City: the Department of Buildings (Oil Burner Equipment Installer, Master Plumber, Gas Work Qualification) and the Fire Department (the Q-01 certificate).

In Westchester County: the Department of Consumer Protection requires home improvement contractors to hold a county license, and it also licenses plumbers and electricians county-wide — its trade-license page lists no HVAC license, an absence we read from that page's scope rather than a county statement.

Whether New York City requires a separate home improvement contractor license for HVAC work was not confirmed in our research.

To check a business's credentials, DOB licenses are searchable through its Check License Status tool at nyc.gov/buildings, and Westchester County runs a Trade Licenses Search.

Outside New York City and Westchester, our research did not survey other cities and counties, so ask the building or licensing department where your business will work.