Montana Contractor & Trade License Requirements
Montana requires statewide licensing for electricians and plumbers through the Department of Labor & Industry. General contractors, HVAC contractors, and roofers do not need a state trade license but must register with the Contractors Registration Unit (CRU) if they have employees. All construction contractors with employees must carry workers compensation insurance.
General Contractor
Not requiredExperienceNone
ExamNo
Est. Cost$70
Electrician
RequiredExperience8,000 hrs
ExamYes
Est. Cost$310
Plumber
RequiredExperience4 years
ExamYes
Est. Cost$270
HVAC Technician
Not requiredExperienceNone
ExamNo
Est. Cost$70
Roofing Contractor
Not requiredExperienceNone
ExamNo
Est. Cost$70
Reciprocity Agreements
Montana has reciprocity agreements with 2 states. Licensed contractors from these states may be eligible to skip certain exams.
oregon — Reciprocal journeyman plumber and electrician licenses accepted
idaho — Reciprocal journeyman plumber and electrician licenses accepted