Do you need a license to work as a plumber in Connecticut?
Yes. In Connecticut, plumbing and piping work must be performed by a person licensed for it by the Department of Consumer Protection, which issues separate contractor and journeyperson licenses that are valid throughout the state. A licensee may not start work until every permit it needs has been obtained, and working without the required license can bring a civil penalty after a hearing. This is Conn. Gen. Stat. §§ 20-334, 20-338, 20-338a, 20-341.
| What | Connecticut |
|---|---|
| Plumber license | State license (contractor or journeyperson) |
Source
Conn. Gen. Stat. §§ 20-334, 20-338, 20-338a, 20-341
Read the statute in the Connecticut General Statutes (Connecticut General Assembly): cga.ct.gov.
Checked against the statute on November 12, 2026.
This is a summary of a published statute, not legal advice. Rules change, local ordinances can add to them, and the terms of a specific lease may differ. Check the citation and speak to a lawyer before acting.
How Seayora uses this rule
A contractor on Seayora keeps each license with its issuing state, its expiry date and the last four digits of its number, and the business is warned before one lapses — on the website and both phone apps. A customer finding a pro on Seayora sees whether a license is on file.
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