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How to get a plumbing license in Colorado

Edited by John Voll. Last verified .

Colorado State Plumbing Board, Division of Professions and Occupations, Department of Regulatory Agencies licenses plumbing contractors in Colorado. The Professional and Occupational Licenses in Colorado, Colorado Department of Regulatory Agencies, Division of Professions and Occupations; Electrical and Plumbing license types only lists 21,533 active plumbing records as of October 6, 2026.

Who licenses plumbing work in Colorado

CredentialState license
BoardColorado State Plumbing Board, Division of Professions and Occupations, Department of Regulatory Agencies official statement
Official lookupSearch plumbing licenses
License typesPlumbing Contractor (PC, registration), Master Plumber (MP), Journeyworker Plumber (JP), Residential Plumber (RP)

How to get licensed

  1. Apply to Colorado State Plumbing Board for a credential such as Plumbing Contractor (PC, registration), Master Plumber (MP) or Journeyworker Plumber (JP).
    Board page
  2. No separate exam for the contractor registration; the responsible master plumber must pass the PSI master plumber exam (120 questions, 75% to pass). source
  3. Experience: master plumber (required for a contractor's responsible individual): five full-time years, about 8,500 hour. source
  4. Carry plumbing contractors: general liability of at least $300,000 and property damage of at least $100,000, plus workers' compensation if they have employee. source
  5. Plumbing licenses renew every three years starting with the cycle that begins March 1, 2027. source

Plumbing requirements in Colorado

Plumbing: exam, experience, bond, insurance, renewal and feesSources checked October 6, 2026
ExamNo separate exam for the contractor registration; the responsible master plumber must pass the PSI master plumber exam (120 questions, 75% to pass). source
ExperienceMaster plumber (required for a contractor's responsible individual): five full-time years, about 8,500 hour. source
BondNo bond requirement found in the plumbing licensing guide, the Plumbing Practice Act or Board rules; no official page states one exists or does not.
InsurancePlumbing contractors: general liability of at least $300,000 and property damage of at least $100,000, plus workers' compensation if they have employee. source
Renewal3 years (Plumbing licenses renew every three years starting with the cycle that begins March 1, 2027). source
ReciprocityNo reciprocity agreements found; license by endorsement for a state-issued license earned by testing on the current or previous International Plumbing Code. source
Fees
  • Not found on an official source. Plumbing contractor registration fee: no official page read in this session publishes the amount.
  • $140 (Master plumber license application fee). source
  • $140 (Master plumber license renewal fee). source
  • Not found on an official source. PSI plumbing exam fee: the PSI Colorado plumbing candidate bulletin was not located in this session.

Hiring a plumbing contractor?

See every official lookup in Colorado, which board covers which trade, and what to check before you hire.

How to verify a contractor license in Colorado

Questions

Do you need a plumbing license in Colorado?
Colorado State Plumbing Board, Division of Professions and Occupations, Department of Regulatory Agencies licenses plumbing contractors in Colorado.
How do I check a plumbing license in Colorado?
The Colorado State Plumbing Board, Division of Professions and Occupations, Department of Regulatory Agencies keeps the record for plumbing contractors in Colorado. Use the official lookup on this page, and treat the board's own record as final.
How much does a plumbing license cost in Colorado?
$140 (Master plumber license application fee). $140 (Master plumber license renewal fee).
How much experience do you need for a plumbing license in Colorado?
Master plumber (required for a contractor's responsible individual): five full-time years, about 8,500 hour.
How often does a plumbing license renew in Colorado?
Plumbing licenses renew every three years starting with the cycle that begins March 1, 2027.

Other trades in Colorado

Plumbing license in other states

Sources

This is not a government site. The licensing board's own record governs; always confirm on the official lookup. Information as of October 6, 2026.