State plumbing guide · NC
Plumbing in North Carolina
North Carolina writes its own state plumbing code and licenses plumbing contractors through a dedicated state board, with separate classes for all buildings and for single-family homes.
- Median home built
- 1993
- Built before 1980
- 33%
- Owner-occupied
- 67%
- Winter
- Occasional hard freezes
- General statewide rating
- Plumbing code
- IPC
- City guides
- 6
Housing figures: U.S. Census Bureau, ACS 2024 1-year (B25035, B25034).
North Carolina city plumbing guides
How to check a plumber's license in North Carolina
Plumbing contractors in North Carolina are licensed by the State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors. A Class I license covers all buildings; Class II covers single-family detached homes. [1]
Which plumbing code applies in North Carolina
The 2024 North Carolina State Building Code: Plumbing Code, based on the 2021 International Plumbing Code, took effect July 1, 2025 after the legislature delayed its start date. [2]
Seasonal problems to plan for in North Carolina
- Winter
- Hard freezes: protect exposed pipes, disconnect hoses. Frozen pipes.
- Hurricane season
- Know your main shutoff; watch for backups after storms.
How old North Carolina's homes are
Statewide, the median home was built in 1993 and 33% of homes predate 1980. Homes like that were usually built with copper or CPVC supply, plastic drains, and in some homes gray polybutylene supply pipe. The city guides below show how much that varies within the state.
North Carolina plumbing questions
How do I check a plumber's license in North Carolina?
Search the State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors' license lookup. For work beyond single-family homes, check that the contractor holds a Class I license.
Which plumbing code applies in North Carolina?
The 2024 North Carolina State Plumbing Code, based on the 2021 International Plumbing Code, in effect since July 1, 2025.
Sources (3)
- U.S. Census Bureau, ACS 2024 1-year (B25035, B25034) · checked 2026-10-01
- North Carolina General Statutes, Chapter 87 Article 2 · checked 2026-10-01
- NC State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors, Building Code Effective Dates · checked 2026-10-01