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Mechanical and Boilers
The Mechanical and Boiler contractor licenses are issued by the department of Licensing and Regulatory Affairs (LARA), through the Bureau of Construction Codes (BCC), and the Skilled Trades Division. Michigan currently issues two types of boiler licenses, which are the Boiler Installer’s License and the Boiler Repairer’s License. Additionally, there is a class P License listed under both licenses, which allows a contractor to perform either external piping repairs or installations depending on the chosen trade. Michigan currently licenses fourteen different types of mechanical contractors.
How to Obtain the Michigan Mechanical Contractors License?
- Select one of the 14 Michigan mechanical licenses available:
- Ductwork
- Fire Suppression
- Fuel Gas Piping
- Fuel Gas Piping and Venting
- HVAC Equipment
- Hydronic Heating and Cooling and Process Piping
- Limited Heating Service
- Limited Refrigeration and Air Conditioning Service
- LP Distribution Piping
- Refrigeration
- Solar Heating and Cooling
- Solid Fuel Equipment and Vented Decorative Gas Appliances
- Unlimited Heating Service
- Unlimited Refrigeration and Air Conditioning Service
- Satisfy the criteria for licensure:
- Be of good moral character.
- Have at least 3 years or 6,000 hours of experience in the license classification chosen.
- Have at least 3 years or 6,000 hours of experience in the license classification chosen.
- Include a thorough description of each previous work performed, along with its corresponding dates, employers, and length of work.
- Include the types of equipment or systems worked on (e.g. venting and duct systems, types of refrigerants, tonnage, etc.).
- If adding a new classification to an existing license. You must have held the pre-requisite classification for not less than 3 years IMMEDIATELY preceding the date of your application to qualify to add a classification.
- Ductwork - Must have HVAC
- Limited Heating Service - Must have HVAC
- Limited Refrigeration & Air Conditioning Service - Must have HVAC or Refrigeration
- Unlimited Heating Service - Must have HVAC or Limited Heating Service
- Unlimited Refrigeration & Air Conditioning Service - Must have, Refrigeration, Limited Refrigeration or AC Service
- Specialties - Must have HVAC
- Fill out an online application or send a completed paper form by mail to P.O. Box 30255, Lansing, MI 48909, along with the corresponding non-refundable application fee and the required documents.
- Expect a response from the corresponding Department and if approved PSI© will contact the applicant in order to schedule the examination.
- Take the exam(s).
- Upon successful completion of the exams, the testing company will notify the licensing board and a license will be issued.
How to get the Boiler Installer or Boiler Repairer License?
- If applying for the Boiler Installer License, choose one of the following classes:
- Class 1B: Low-pressure boilers that do not exceed a firing rate of 1,000,000 BTUs.
- Class 2B: Low-pressure boilers of any capacity or firing rate.
- Class 3B: Power boilers that have a capacity of not more than 5,000 pounds of steam per hour.
- Class 4B: Boiler that has a capacity of not more than 300,000 pounds of steam per hour.
- Class 5B: Boilers that have any capacity or firing rate, excluding nuclear heat source boilers.
- Class 6B: Boilers that utilize a nuclear heat source.
- Class P: Install or replace non-boiler external piping or repair non-boiler external piping.
- If applying for the Boiler Repairer License, choose one of the following classes:
- Class I: Repair boilers by means other than welding, riveting, or other fabrication process.
- Class II: Repair a low-pressure boilers, hot water supply boilers, and fire tube boilers of any pressure.
- Class III: Repair a high-pressure boilers.
- Class IV: Repair or field-erect boilers of any pressure.
- Class V: Erect and repair boilers with a nuclear heat source.
- Class P: Install or repair non-boiler external piping.
- Meet the licensing requirements for repairers and installers:
- Be at least 18 years of age.
- Have a minimum of 5 years of experience in all the phases of boiler Installation in the chosen class.
- Installers with 2 years of experience in the manufacturing, construction, design, or inspection of boilers, can use that time towards the 5 years of required minimum experience; repairers can use up to 3 years.
- If any installation requires welding, it is essential to file welding procedure specifications and qualification reports that meet ASME© code Section IX (welding, brazing, and fusing qualifications) requirements with the boiler division.
- It is not a requirement to have a clean criminal record to apply for these licenses.
- Submit an online application or mail a completed paper application that includes proof of required experience from a previous employer and the applicable license fee.
- Once the application is approved, PSI© will send information regarding instructions for registration and scheduling.
- Take and pass the examination for the desired license.
- Once the examination is successfully completed, the license will be issued.
Useful links and contact information for mechanical and boiler contractors
Mechanical License Application and Examination Information
Boiler License Application and Examination Information
BCC's Mechanical Division
Mechanical Divison
517-241-9325
Fax: 517-241-0130
BCC's Boilers Division
Boiler Division
517-582-5479
Fax: 517-241-0130
