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TradeOnRamp

The way into HVAC, electrical and plumbing.

How to become a plumber in Colorado

Start as apprentice (registration) the week you are hired (registration only, no exam); journeyman after 6,800 hrs (≈ 3.4 yrs) and the PSI exam; own the shop with the plumbing contractor (registration).

6Verified from the board0Board page checked0Research-seeded, not yet verified

Newest check Aug 28, 2026 · Sources: Colorado DORA — Division of Professions and Occupations, State Plumbing Board ↗

Re-checked every 6 h · full re-verify quarterly · Changes ↓

What are the plumbing license tiers in Colorado, and what does each require?

Rows checked against Colorado DORA — Division of Professions and Occupations, State Plumbing Board (dpo.colorado.gov) ↗ · newest Aug 28, 2026 · full re-verify quarterly · heartbeat every 6 h · how labels work

Who licenses plumbing here

State-licensed

Colorado licenses plumbers at the state level — the ladder below is the state board's.

Scope derived by the importer from the dataset author's notes (derived:is_state_licensed); the board pass confirms it.

  1. No experience

    Colorado publishes no statewide dollar threshold for unlicensed work in the pages we read; the contractor statute and your city decide. Electrical and plumbing work are excluded — they are licensed at any job size.

    What you can do for pay this week in Colorado →

  2. apprentice (registration)

    apprentice · Colorado DORA — Division of Professions and Occupations, State Plumbing Board

    Verified from the boardColorado DORA — Division of Professions and Occupations, State Plumbing Board ↗
    Experience
    — (registration only)
    Class hours
    —
    Prerequisites
    Register before working; annual experience reporting; apprentices attach to a plumbing contractor.
    Exam
    not stated on the pages read
    Fees
    — application · — exam · — license
    Renewal
    — · CE not stated
  3. residential plumber

    specialty · Colorado DORA — Division of Professions and Occupations, State Plumbing Board

    Verified from the boardColorado DORA — Division of Professions and Occupations, State Plumbing Board ↗
    Experience
    3,400 hrs (≈ 1.7 yrs)
    Class hours
    —
    Prerequisites
    2 years (3,400 hours) verified practical experience via Affidavit of Experience from plumbing-contractor employers; exam. CE 8 hrs per licensure year.
    Exam
    PSI
    Fees
    — application · — exam (in the vendor bulletin) · — license
    Renewal
    every 2 years · 16 CE hrs
  4. journeyworker plumber

    journeyman · Colorado DORA — Division of Professions and Occupations, State Plumbing Board

    Verified from the boardColorado DORA — Division of Professions and Occupations, State Plumbing Board ↗
    Experience
    6,800 hrs (≈ 3.4 yrs)
    Class hours
    —
    Prerequisites
    4 years (6,800 hours) practical experience; exam. CE 8 hrs per licensure year.
    Exam
    PSI
    Fees
    — application · — exam (in the vendor bulletin) · — license
    Renewal
    every 2 years · 16 CE hrs
  5. master plumber

    master · Colorado DORA — Division of Professions and Occupations, State Plumbing Board

    Verified from the boardColorado DORA — Division of Professions and Occupations, State Plumbing Board ↗
    Experience
    8,500 hrs (≈ 4.3 yrs)
    Class hours
    —
    Prerequisites
    Five full-time years (8,500 hours) practical experience (163 hrs = 1 month); exam. CE 8 hrs per licensure year.
    Exam
    PSI
    Fees
    — application · — exam (in the vendor bulletin) · — license
    Renewal
    every 2 years · 16 CE hrs
  6. plumbing contractor (registration)

    contractor · Colorado DORA — Division of Professions and Occupations, State Plumbing Board

    Verified from the boardColorado DORA — Division of Professions and Occupations, State Plumbing Board ↗
    Experience
    —
    Class hours
    —
    Prerequisites
    Must employ a master plumber (Acknowledgment of Responsibility); expires last day of February of odd-numbered years.
    Exam
    not stated on the pages read
    Fees
    — application · — exam · — license
    Renewal
    every 2 years · CE not stated

Where are you now? Find your next gate

Your next gate

apprentice (registration)

Hours remaining (of 0)
0 — eligible to apply
Exam
not stated
Fees (application / exam)
— / —
Colorado DORA — Division of Professions and Occupations, State Plumbing Board →

Apprenticeship, trade school, or community college — which is cheapest in Colorado?

RouteCost to youTimeCounts toward the license?Where
Registered apprenticeship (union JATC or IEC/ABC open-shop)Paid from day one (~45% of journeyman scale in period 1)4–5 yearsYes — every hourDenver (5)
Community / technical college certificateTuition (public, usually the cheapest classroom route)12–24 monthsClassroom hours in some states; the credential opens helper/apprentice doorsEmily Griffith Technical College
For-profit trade schoolTuition (often the most expensive)6–15 monthsSame as community college — check the boardNot listed here until IPEDS completions are joined; no school is ranked by what it pays us

No credentials yet?

Colorado publishes no statewide dollar threshold for unlicensed work in the pages we read; the contractor statute and your city decide. Electrical and plumbing work are excluded — they are licensed at any job size. Start-here page for Colorado →

Plumbing in Colorado's metros

Questions people actually ask

Do I need a license to work as a plumber in Colorado?

Yes — the first state gate is the apprentice (registration) (Colorado DORA — Division of Professions and Occupations, State Plumbing Board). It is a registration with no hours or exam; you can start the week you are hired.

How long does it take to become a journeyman plumber in Colorado?

6,800 hrs (≈ 3.4 yrs) of documented experience, then the PSI exam.

What can I do for pay in Colorado with no license at all?

Colorado publishes no statewide dollar threshold for unlicensed work in the pages we read; the contractor statute and your city decide. Electrical and plumbing work are excluded — they are licensed at any job size.

What does a plumber make in Colorado?

The statewide median is $63,240 per year (BLS OEWS May 2025); metros in the state run from Denver — each has its own pay page.

Apprenticeship, trade school, or community college?

A registered apprenticeship pays you from day one (about 45% of journeyman scale in period 1) and counts every hour toward the license; trade school costs tuition and counts only classroom hours in most states; a community-college certificate (6–24 months) is the cheapest classroom route and often feeds a sponsor. The sponsor pages list every option we can find for your metro.

What changed in this data?

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