Connecticut Plumber License Requirements (2026)

Connecticut licenses individual plumbing tradespeople statewide through the Department of Consumer Protection (DCP). The P-2 Unlimited Journeyperson Plumber may perform the full statutory plumbing-and-piping scope only while employed by a properly licensed contractor. The P-1 Unlimited Plumbing Contractor may perform that full scope as a contractor. DCP’s P-2 application path requires a registered apprenticeship or equivalent experience and training; its published equivalency table identifies 8,000 on-the-job-training hours and 576 related-instruction hours. A P-1 applicant normally qualifies after more than two years holding the corresponding journeyperson license, or through DCP’s equivalent-experience or equivalent-out-of-state-license review. The occupational license is individual, not a company license, and local permits still apply.

Regulatory Body

Under Conn. Gen. Stat. §§ 20-330 to 20-341, Connecticut Department of Consumer Protection — Occupational and Professional Licensing Division (DCP) is the body that issues this license and enforces compliance with it. Licenses individual plumbing and piping contractors and journeypersons, processes applications and renewals, and works with the Plumbing and Piping Work Examining Board.

Official portal: https://portal.ct.gov/dcp/license-services-division/all-license-applications/plumbing-and-pipefitting-licensing
Address: 450 Columbus Boulevard, Hartford, CT 06103
Phone: (860) 713-6135

Eligibility Requirements

This guide does not establish a minimum applicant age; confirm any age requirement with the issuing authority. Applicants must provide a Social Security Number. DCP’s current plumbing licensing page does not list Connecticut residency as a condition. Out-of-state applicants use DCP’s equivalency review rather than reciprocity.

Good moral character

Use DCP’s current online or paper application and answer all requested disclosure questions accurately. DCP determines eligibility before PSI examination scheduling.

Background investigation

The current plumbing licensing page does not list a separate statewide criminal-background-check fee or a universal background-check step. Follow the current application’s disclosure instructions.

Experience and Education

Eligibility requires 4 years of P-2: a registered apprenticeship or equivalent experience and training; DCP’s published table specifies 8,000 on-the-job-training hours and 576 classroom hours for the unlimited P-2 path. P-1: more than two years holding the respective journeyperson license, or an equivalent-experience/equivalent-out-of-state review; the P-1 equivalency table identifies 12,000 on-the-job-training hours and 576 classroom hours., documented and independently verifiable. Payroll, tax, project, and supervisor records are the usual proof the board will accept.

Accepted proof of experience or eligibility

For a Connecticut apprenticeship: the original Letter of Apprenticeship Completion issued by the Connecticut Department of Labor
For equivalent experience: notarized employer letters describing dates and detailed on-the-job training, plus proof of required related instruction
For an equivalent out-of-state license: one license, official verification, the issuing jurisdiction’s requirements, and its scope of work, as requested by DCP

Education substitution

Do not assume a school program replaces field experience. DCP requires proof of both the specified classroom curriculum/hours and on-the-job training for an equivalent-experience or equivalent-out-of-state application.

Exam Requirements

The examination requirement has not been established in this record. Confirm it with the authority before applying. Provider or process notes: PSI Services LLC, after DCP approves examination eligibility

Examination fee: $59 for each PSI examination portion, including a repeat attempt. A journeyperson takes a trade portion; a contractor must pass a trade portion and the Business and Law portion.

Retake policy: PSI permits unlimited attempts during the one-year DCP eligibility period. Contractor portion scores remain valid for two years; verify the current PSI bulletin before scheduling.

Insurance and Bonds

This credential carries no state-level surety bond requirement under the cited sources. Individual jobs may still trigger a permit or public-works bond, which should be verified before bidding.

General liability

DCP’s plumbing trade-license page does not list a general-liability or bond prerequisite for P-1 or P-2 issuance. Contract, owner, lender, and local permit requirements may still require insurance.

Workers' compensation

Workers’ compensation obligations are separate from the occupational license. Confirm coverage requirements before employing workers.

Additional financial requirements

DCP’s current plumbing trade-license page does not list a financial-statement filing for P-1 or P-2 issuance.

Fee Schedule

Fee	Amount
Application	$90
Examination	$59
Initial license	$120
Renewal (every year)	$120

To turn these board fees into a realistic year-one budget — bond premium, liability insurance, and exam prep included — open the cost calculator preloaded for Connecticut plumber.

Renewal and Continuing Education

Expect to renew the Connecticut P-2 Unlimited Journeyperson Plumber and P-1 Unlimited Plumbing Contractor every year. Renewal currently costs $120. P-2 renewal is $120 and P-1 renewal is $150. Both plumbing and pipefitting license classes expire annually on October 31.

Continuing education: Connecticut law authorizes DCP to require accredited continuing professional education for plumbers: generally no more than seven hours every two years, with a possible increase for significant plumbing-code changes. Follow the current DCP CE notice for the active cycle and any waiver.

Downloadable Asset

2026 Connecticut Plumber License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Reciprocity

Connecticut does not accept the NASCLA Accredited Examination for this classification.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

DCP states that Connecticut has no reciprocal agreements with any other jurisdiction. An out-of-state credential can instead be reviewed for equivalency only if it required comparable classroom curriculum, classroom hours, on-the-job training, and scope of work.

Weighing more than one jurisdiction? The national hub compares published Plumber license requirements by state — exam, bond, fee, and experience thresholds side by side.

Plumber Licensing in Neighboring States

Contractors working near a state line, or weighing where to qualify first, should compare Connecticut's requirements against the bordering jurisdictions before committing to an application:

Massachusetts Plumber License Requirements — Massachusetts Apprentice, Journeyman, and Master Plumber Requirements
New York Plumber License Requirements — New York City Master Plumber License (New York licensing is local)
Rhode Island Plumber License Requirements — Rhode Island Journeyperson and Master Plumber

Step-by-Step Application Roadmap

Choose the P-2 unlimited path. Review DCP’s plumbing scope-of-work page. P-2 is the unlimited journeyperson credential; limited plumbing credentials have narrower scopes.
Complete the qualifying training. Complete a registered apprenticeship or assemble the documentation DCP requires for equivalent experience and training. The published P-2 benchmark is 8,000 OJT hours plus 576 classroom hours.
Apply to DCP before scheduling. DCP does not pre-review incomplete applications. Submit the appropriate individual application and evidence; only individuals, not companies, apply for these trade credentials.
Pass the P-2 trade examination. After DCP eligibility approval, schedule through PSI. The current PSI bulletin lists $59 per examination portion.
Gain P-1 qualifying experience. The standard contractor path is more than two years holding the respective journeyperson license. Equivalent-experience and equivalent-out-of-state paths are separately documented by DCP.
Pass both P-1 examination portions. Contractor applicants must pass both the trade and Business and Law portions; PSI’s Business and Law bulletin identifies a 70% passing score and a two-hour, 50-question examination.
Keep the credential and permits current. P-1 and P-2 plumbing licenses expire annually on October 31. Obtain project permits from the authority having jurisdiction.

Application Checklist

The items below are the ones worth confirming before the application is filed with DCP:

Correct P-2 or P-1 individual DCP application selected
DOL Letter of Apprenticeship Completion or DCP-equivalency documentation
For P-2 equivalency, evidence of 8,000 OJT hours and 576 classroom hours
For P-1 standard path, proof of more than two years holding the respective journeyperson license
DCP application fee: $90 P-2 or $150 P-1
PSI trade examination, plus Business and Law for P-1
Annual October 31 renewal and applicable local permits

Common Filing Mistakes

Based on the board's own instructions and the sources cited here, the problems below are what most often stall a Connecticut Plumber application.

Treating P-2 as a contractor credential

P-2 holders may perform the unlimited scope only while employed by a properly licensed contractor. Independent contracting requires the applicable contractor credential.

Using a named reciprocal-state list

DCP expressly says there are no reciprocal agreements. Use its equivalency route and supply the requested out-of-state license, verification, rules, and scope documents.

Submitting unsupported experience

For an equivalency path, DCP requires detailed evidence of both work experience and related instruction; an out-of-state credential alone is not enough.

Budgeting one contractor exam

Contractor applicants need a trade portion and the Business and Law portion, each with a separate PSI fee.

Missing the October renewal

The trade license expires annually on October 31. Track the P-1/P-2 fee difference and current DCP CE requirements.

Study and Reference Materials

What follows are the regulator-cited and commonly used preparation references for this trade. They appear here for convenience only; CLR takes no compensation for them.

Connecticut Occupational Trades Candidate Information Bulletin — PSI Services LLC. Use the current bulletin for the specific P-2/P-1 trade examination reference list, examination conditions, and the Business and Law requirements.
Connecticut plumbing licenses and scope of work — Connecticut DCP. Use this official scope page to confirm the unlimited P-1/P-2 scope and whether a limited credential better fits the work.
Connecticut General Statutes, Chapter 393 — Connecticut General Assembly. Primary statutory source for occupational trade licensing and continuing-education authority.

Other Connecticut Trade Licenses

If the Plumber license is not the right fit, the following published Connecticut trade guides are also covered by CLR:

Frequently Asked Questions

What is the difference between Connecticut P-2 and P-1 plumbing licenses?

P-2 is the unlimited journeyperson credential and may perform the full plumbing-and-piping scope only while employed by a properly licensed contractor. P-1 is the unlimited plumbing contractor credential and may do the full statutory scope as a contractor.

How do I qualify for Connecticut P-2?

DCP requires a registered apprenticeship or equivalent experience and training. Its published unlimited P-2 equivalency table lists 8,000 on-the-job-training hours and 576 classroom hours.

Does Connecticut reciprocate plumbing licenses?

No. DCP says Connecticut has no reciprocal agreements. It can review one out-of-state credential for equivalency when the licensing requirements and scope are comparable.

What examinations are required?

A journeyperson takes a trade examination. A contractor takes both a trade examination and PSI’s Business and Law examination. Use the current PSI bulletin for the exact trade reference list and format.

When do Connecticut plumbing licenses renew?

All plumbing and pipefitting licenses expire annually on October 31. Current annual renewal fees are $120 for journeypersons and $150 for contractors.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-09-04 · Next scheduled review 2026-12-03

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Corrections and presentation updates

2026-09-30: Corrected examination detection when format details are unpublished and updated the summary layout and requirements score. Source-check dates are unchanged.
2026-09-08: Shared template updated to distinguish unspecified eligibility requirements, retain cost qualifications, and use consistent headings. Source-check dates are unchanged by presentation updates.
2026-09-21: Local-only guides now use a compliance-focused structure and terminology instead of implying a statewide license application. Source-check dates are unchanged by this presentation update.