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Iowa Plumbing and Mechanical Systems Examining Board

Licensure Details — Requirements

Master Level

Note: All qualified Master applicants are eligible to work at all roles defined under Journeyperson duties in addition to the defined Master duties.

Definition of Master

"Master" means any person who works in the planning or superintending of the design, installation, or repair of plumbing, HVAC, refrigeration, or hydronic systems and is otherwise lawfully qualified to conduct the business of plumbing, HVAC, refrigeration, or hydronic systems, and who is familiar with the laws and rules governing the same.

Master Requirements

  • Must be at least 18 years old.
  • An applicant must have no record of felony conviction relating to the profession as determined by the board. Applicants with a felony conviction will be subject to review by the board to determine eligibility for licensure.
  • Pass the state of Iowa Plumbing and Mechanical Systems Board master licensing examination for the applicable discipline
  • Must file an application and submit appropriate fees.


Master - $240.00 per trade