Colorado plumber license requirements
4 facts reviewed by our editor against the official page. Passages marked “not yet reviewed” are copied word-for-word from official state pages (fetched 2026-10-17) and are pending human review — read them in context on the linked source.
| Item | Detail (with quote from the official source) |
|---|---|
| Licensing authority | Individual worker license (CO State Plumbing Board) State Plumbing Board (DORA DPO), phone 303-894-7800. “State Plumbing Board 1560 Broadway, Suite 1350 Denver, CO 80202 Phone: 303-894-7800” Official source · verified 2026-10-17 · co_plumbing_home.pdf |
| License levels | Individual worker license (CO State Plumbing Board) Initial plumbing license by examination or endorsement. “Plumbing - Initial License by Examination or Endorsement Method” Official source · verified 2026-10-17 · co_plumbing_applications.pdf |
| Renewal | Individual worker license (CO State Plumbing Board) Plumbing licenses and plumbing contractor registrations expire on the final day of February of odd-numbered years. “expire on the final day of February of odd-numbered years and must be renewed to continue practicing.” Official source · verified 2026-10-17 · co_plumbing_applications.pdf |
| Other notes | Contractor registration (CO) Plumbing contractors register separately with the Division. “Plumbing Contractor - Initial Registration by Original Method” Official source · verified 2026-10-17 · co_plumbing_applications.pdf |
Check a license in Colorado
Colorado does not publish a bulk license file we use; check with the licensing authority’s own search (see sources).
Questions to ask the board
- Which license level matches my experience, and do hours from another jurisdiction count?
- Is the exam open-book, and which code edition is used?
- Do I also need a city or county license where I will work?
- Is there a reciprocity or endorsement agreement with my current jurisdiction?
Sources checked: dpo.colorado.gov · dpo.colorado.gov