- The refrigeration technician license covers work on systems over 10 tons in total capacity. Check with the board for smaller systems.
- Refrigeration Technician: 6,000 hours as a licensed refrigeration apprentice under a Massachusetts refrigeration contractor plus 450 hours of approved schooling, or an equivalent license from another jurisdiction. Refrigeration Contractor: 100 more hours of approved refrigeration training.
- Plan for a trade exam.
- Refrigeration licenses renew about every two years and expire on the licensee's birthday. A license not renewed for a year can only be reinstated by passing the exam again. Apprentice licenses can be renewed only twice unless the bureau approves more.
Do you need a state license in Massachusetts?
Massachusetts licenses some HVAC work at the state level and leaves the rest alone. Which side of that line a job falls on decides whether you need the state license.
The refrigeration technician license covers work on systems over 10 tons in total capacity. Check with the board for smaller systems.
Licensed plumbers and gas fitters stay subject to local permit and bonding rules. Check with the town or city inspector.
Massachusetts license types for HVAC work
Massachusetts splits the work into 5 licenses. Pick the one that matches the jobs you take, since working outside its scope is the same as working without one.
| License | What it covers |
|---|---|
| Refrigeration Apprentice | Licensed apprentice, registered with the Division of Apprentice Standards and employed by a Massachusetts refrigeration contractor |
| Refrigeration Technician | Needed for refrigeration work on systems over 10 tons in total capacity |
| Refrigeration Contractor | Lets you keep a regular place of business and hire licensed people to do refrigeration work |
| Sheet Metal Worker (journeyperson and master) | Commercial duct and air exhaust systems. Masters have a regular place of business |
| Gas Fitter (master, journeyman, apprentice) | Gas fitting work regulated under state plumbing and gas fitting law |
Steps to get licensed in Massachusetts
- Get a refrigeration apprentice license, register with the Division of Apprentice Standards, and work for a Massachusetts refrigeration contractor.
- Log 6,000 hours as a licensed apprentice and finish 450 hours of approved schooling.
- Apply for the Refrigeration Technician license ($75) with your Universal CFC certification, then pass the exam.
- To run your own shop, finish 100 more hours of approved training, then apply for the Refrigeration Contractor license ($150) and pass that exam.
- Get a separate gas fitter or sheet metal license if you do that work.
- Renew by your birthday about every two years.
Experience and other requirements
Experience. Refrigeration Technician: 6,000 hours as a licensed refrigeration apprentice under a Massachusetts refrigeration contractor plus 450 hours of approved schooling, or an equivalent license from another jurisdiction. Refrigeration Contractor: 100 more hours of approved refrigeration training.
The license to apply for. Refrigeration Contractor license (with a Refrigeration Technician license for the hands on work).
Massachusetts HVAC exams
Trade exam. Yes. After the bureau approves your application, the Office of Public Safety and Inspections gives the refrigeration technician or refrigeration contractor exam. Sheet metal and gas fitter licenses have their own state exams.
Business and law exam. The official pages we read do not say. Check with the board (official site).
Separate from any state license, the EPA requires Section 608 certification for anyone who works on equipment with refrigerant. It is federal and applies in every state.
What it costs in Massachusetts
The board lists 5 fees along the way. These are the state's own numbers. Insurance, any bond, exam prep and your business registration come on top.
| Fee | Amount |
|---|---|
| Refrigeration Technician application | $75 |
| Refrigeration Contractor application | $150 |
| Apprentice renewal | $20 |
| Journeyman or technician renewal | $50 |
| Master or contractor renewal | $75 |
Insurance and bond
Insurance. The official pages we read do not say. Check with the board (official site).
Bond. The official pages we read do not say. Check with the board (official site).
Renewal and licenses from other states
Renewal. Refrigeration licenses renew about every two years and expire on the licensee's birthday. A license not renewed for a year can only be reinstated by passing the exam again. Apprentice licenses can be renewed only twice unless the bureau approves more.
Reciprocity. A refrigeration technician license from another jurisdiction, with equivalent work experience, can stand in for the Massachusetts hours if the bureau approves it by majority vote.
Good to know in Massachusetts
- Starting November 9, 2026, new refrigeration technician and journeyman pipefitter applicants need a 450 hour bureau approved course and 6,000 hours as a licensed apprentice.
- Technician applicants must include a copy of their Universal CFC certification.
- Sheet metal licenses are issued by the Board of Examiners of Sheet Metal Workers.
- EPA Section 608 certification is a federal requirement for anyone handling refrigerant.
After you are licensed
The license lets you take the work. Getting the work is the next job.
- Register the business. If you work under a name other than your own, register it where your state asks (often the Secretary of State, sometimes the county), and keep the name the same on your license, your truck and your invoices.
- Claim your Google Business Profile. It is the listing people see when they search for HVAC repair near them. Fill in your service area, hours and real photos of your work.
- Put up a website that shows the license. Customers look for it before they call. Koira builds a contractor website for you and keeps it current.
- See where you stand. The free Koira report checks how your business shows up in search and on maps against shops near you.
Where this comes from
Every fact on this page comes from the Massachusetts Division of Occupational Licensure, Office of Public Safety and Inspections, Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters and the official pages below, checked October 8, 2026. Fees and rules change, so confirm with the board before you file.
- Mass.gov Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters
- Mass.gov apply for a Refrigeration Technician license
- Mass.gov apply for a Refrigeration Contractor license
- Mass.gov renew a pipefitter, refrigeration technician or sprinkler fitter license
- MGL c.146 section 85, exams and licenses
- MGL c.112 section 237, sheet metal
- MGL c.142 section 3, gas fitting
More for your trade: how HVAC companies run on Koira.