Massachusetts HVAC License Requirements

Official classification: No single HVAC license — work is licensed as Sheet Metal Worker, Refrigeration Technician/Contractor, Pipefitter (Heating & Cooling), or Oil Burner Technician depending on the task · Issued by the Board of Examiners of Sheet Metal Workers (DOL); Office of Public Safety and Inspections (Pipefitters & Refrigeration); Department of Fire Services (Oil Burner).

❄️ HVACMA ✔ Verified 2026-06-24

In Massachusetts, HVAC contractors must hold the No single HVAC license — work is licensed as Sheet Metal Worker, Refrigeration Technician/Contractor, Pipefitter (Heating & Cooling), or Oil Burner Technician depending on the task, issued by the Board of Examiners of Sheet Metal Workers (DOL); Office of Public Safety and Inspections (Pipefitters & Refrigeration); Department of Fire Services (Oil Burner), and no state surety bond is required. Full requirements — experience, exams, fees, insurance, renewal and reciprocity — are detailed below.

How to become a licensed HVAC contractor in Massachusetts

Follow these steps to earn your No single HVAC license — work is licensed as Sheet Metal Worker, Refrigeration Technician/Contractor, Pipefitter (Heating & Cooling), or Oil Burner Technician depending on the task. Every figure is verified against the Board of Examiners of Sheet Metal Workers (DOL); Office of Public Safety and Inspections (Pipefitters & Refrigeration); Department of Fire Services (Oil Burner); full detail for each step is further down the page.

1. Build the required experience. Varies by license. Sheet Metal Journeyperson J-1 (unrestricted): 8,000 apprentice hours over 5+ years + a 750-hour course (J-2 restricted: 4,800 hours + a 450-hour course). Refrigeration Technician: for applications before November 9, 2026, 250 course hours + 6,000 apprentice hours (or 500 + 4,000, or 1,000 + 2,000); from November 9, 2026, a 450-hour course + 6,000 hours as a licensed apprentice; EPA 608 Universal either way; Refrigeration Contractor: 2,000 hours as a MA technician + 100 education hours. Oil Burner Technician: no work-hour minimum; pass the written exam.
2. Pass the exam for the license class you are applying for. Providers, passing scores and fees are in the Exams section below.
3. Check the insurance rules. Liability: A Sheet Metal business license requires a certificate of liability insurance from a MA-licensed insurer (no fixed statutory minimum); individual licenses do not require insurance as a condition of licensure. Property damage: Not separately specified by statute. Workers' compensation: Mandatory for any employer (M.G.L. c. 152).
4. Clear the background check. Sheet Metal: Journeyperson applications include a CORI Authorization Form, and a business license needs a notarized CORI Authorization Form for its Master Sheet Metal worker(s).
5. Submit your application and fees. Apply through the Board of Examiners of Sheet Metal Workers (DOL); Office of Public Safety and Inspections (Pipefitters & Refrigeration); Department of Fire Services (Oil Burner) — Refrigeration: Apprentice $40, Technician $75, Contractor $150. Oil Burner: Apprentice $40, Technician $75. Sheet Metal: Journeyperson $155 license processing and issuance; business license $225. application fee, plus a Included in the application fees above (OPSI/DFS credentials) license fee. Processing time: Refrigeration: applicants notified by mail 4-8 weeks after filing; exams are first-come, first-served (file 30 days ahead).
6. Keep the license active. Renewal: Every 2 years (Sheet Metal, Refrigeration, Oil Burner).

For the general path in every state, see the HVAC guide →

Massachusetts HVAC contractor license lookup

To confirm an HVAC contractor is properly licensed in Massachusetts — or to check the status of your own license — search the issuing agency's official license database. The record shows whether the license is active and in good standing.

License types

• Sheet Metal Worker (Apprentice / Journeyperson / Master / Business) — Ductwork, air distribution, exhaust hoods, rooftop HVAC equipment (271 CMR).
• Refrigeration Technician / Contractor — Refrigerant-containing A/C and refrigeration systems of 10 tons or greater (under-10-ton systems need only EPA 608).
• Pipefitter (Power, Heating & Cooling) — Hydronic heating/cooling piping, steam, and process piping (528 CMR 11).
• Oil Burner Technician — Installs/services oil-fired heating equipment (527 CMR 1.00; M.G.L. c. 148).

Requirements at a glance

What a Massachusetts hvac license costs

Exams

Renewing a Massachusetts HVAC contractor license

The No single HVAC license — work is licensed as Sheet Metal Worker, Refrigeration Technician/Contractor, Pipefitter (Heating & Cooling), or Oil Burner Technician depending on the task renews on a fixed cycle set by the Board of Examiners of Sheet Metal Workers (DOL); Office of Public Safety and Inspections (Pipefitters & Refrigeration); Department of Fire Services (Oil Burner). Late and lapsed renewals are handled differently by every board, so check the renewal page linked below before the deadline passes.

Local / municipal notes

There is no single statewide HVAC license in Massachusetts. The credential depends on the work: ductwork = Sheet Metal; refrigerant/AC 10+ tons = Refrigeration; hydronic/steam piping = Pipefitter; oil-fired heating = Oil Burner. EPA Section 608 certification is separately required to handle refrigerants; many HVAC contractors hold more than one credential.

Frequently asked questions

Official sources

mass.gov/doc/271-cmr-4-continuing-education/download
mass.gov/doc/528-cmr-11-prerequisites-for-examinations-for-pipefitters-refrigeration-technicians-and-sprinkler-fitters/download
mass.gov/alerts/effective-november-9-2026-new-licensing-requirements-take-effect-for-journeyman-pipefitters-and-refrigeration-technicians
mass.gov/sheet-metal-workers-licensing
mass.gov/refrigeration-licensing
mass.gov/how-to/apply-for-a-refrigeration-technician-license
mass.gov/how-to/apply-for-an-oil-burner-technician-or-apprentice-certificate

Other Massachusetts contractor licenses

HVAC licensing in other states