Contractors License Overview
- Massachusetts requires a Construction Supervisor license to oversee construction of 1- and 2-family homes of any size, work on existing homes for 1- to 4-families, and construction of buildings less than 35,000 cubic feet. For buildings greater than 35,000 cubic feet, a registered architect or engineer must control construction, so no state contractors license is required.
- A Home Improvement Contractor registration is also required to do work on existing 1- to 4-family homes. No exam is required.
- Plumbers, gas fitters, electricians, and refrigeration technicians are regulated on the state level and must be licensed.
- Applicants for a Construction Supervisor, Plumbing, Gas Fitting, Electrical, or Refrigeration license must submit an application for approval before taking their required exam.
- Information regarding exam details, reference materials, experience requirements, reciprocity, and other requirements for obtaining and maintaining a license are available by selecting the license links found below.

Massachusetts Commercial
Massachusetts Construction Supervisor- Unrestricted
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Explore Custom Training TodayMassachusetts Journeyman Electrician, Part I/Part II
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Explore Custom Training TodayMassachusetts Business and Law
Massachusetts Business and Law (Master EL & Systems Contractor)
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Explore Custom Training TodayMassachusetts Electrical
Massachusetts Master Electrician
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Explore Custom Training TodayMaster Electrician/Contractor is a person, firm, or corporation having a regular place of business who, by the employment of journeymen or apprentices, performs the work of installing, repairing or maintaining wires, conduits, apparatus, devices, fixtures or other appliances used for light, heat, power, fire warning or security system purposes; provided, however, that no journeyman electrician so employed shall have more than one apprentice under his supervision; and provided, further, that not more than one such apprentice shall be employed for each journeyman electrician purposes. The Master may also do electrical work himself.
Massachusetts Plumbing
Massachusetts Systems Technician, Part I/Part II
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Explore Custom Training TodayMassachusetts Specialty Trades
Massachusetts Systems Contractor Part I
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