State plumbing guide · ME
Plumbing in Maine
Maine uses the Uniform Plumbing Code statewide and licenses plumbers through a state examining board. Long winters, deep frost and many homes on private wells and septic systems define local plumbing.
- Median home built
- 1978
- Built before 1980
- 53%
- Owner-occupied
- 73%
- Winter
- Long, hard freezes
- General statewide rating
- Plumbing code
- UPC
- City guides
- 0
Housing figures: U.S. Census Bureau, ACS 2024 1-year (B25035, B25034).
How to check a plumber's license in Maine
The Maine Plumbers' Examining Board examines and licenses trainee, journeyman and master plumbers. [1]
Seasonal problems to plan for in Maine
- Winter
- Hard freezes: protect exposed pipes, disconnect hoses. Frozen pipes.
- Spring
- Well pumps and pressure tanks get tested as usage rises. See well pump repair.
Maine's older housing stock
Statewide, the median home was built in 1978 and 53% of homes predate 1980. Homes like that were usually built with copper supply, early plastic (ABS or PVC) drains, some cast iron. The city guides below show how much that varies within the state.
Which plumbing code applies in Maine
Maine's Plumbers' Examining Board adopted the 2021 Uniform Plumbing Code as the state standard for plumbing installations, effective January 1, 2022. [2]
Maine plumbing questions
How do I check a plumber's license in Maine?
Verify the plumber with Maine's Office of Professional and Occupational Regulation license search.
Which plumbing code applies in Maine?
The 2021 Uniform Plumbing Code, adopted by the Plumbers' Examining Board as Maine's standard since January 1, 2022.
Sources (3)
- U.S. Census Bureau, ACS 2024 1-year (B25035, B25034) · checked 2026-10-01
- Maine Plumbers' Examining Board · checked 2026-10-01
- Maine Plumbers' Examining Board · checked 2026-10-01