Do I need a permit for plumbing fixture or repiping in Naperville?
Yes. In Illinois, plumbing fixture or repiping generally requires a permit, and Naperville is no exception.
Repiping a home's water distribution or drainage requires a permit in most Illinois jurisdictions and must be performed by an Illinois-licensed plumber under the statewide Illinois Plumbing Code. Minor repairs such as clearing a stoppage or replacing a faucet are typically exempt, but replacing or rerouting piping is not. Naperville requires a permit to install or replace any trap, drain pipe, water, soil, waste, or vent pipe, and to replace or rearrange valves, pipes, or fixtures. Clearing stoppages, repairing leaks, and removing and reinstalling a water closet are exempt. Replacing a water or sewer service line also requires a permit. Plumbing contractors must submit a copy of their state contractor registration and a Letter of Intent, which the City uses to verify credentials and guard against identity theft. Permits are filed and managed through the City's Civic Access portal (napervilleil-energovweb.tylerhost.net). Confirm scope with the TED Business Group before starting.
Documents you may need
- Plumbing plan showing fixtures and pipe runsLikely required
- Illinois-licensed plumber informationrequired
- Pipe material specificationsSometimes required
- Plumbing permit application through the City's Civic Access permit portalrequired
- Copy of the state plumbing contractor registration and Letter of Intentrequired
- Development Petition and Disclosure of Beneficiaries formsSometimes required
Possible inspections
- Rough plumbing inspection
- Pressure test
- Final inspection
- Rough plumbing inspection of new or replaced piping by the TED Business Group
- Final plumbing inspection
Frequently asked questions
- Do I need a permit for plumbing fixture or repiping in Naperville?
- Yes. In Illinois, plumbing fixture or repiping generally requires a permit, and Naperville is no exception. Repiping a home's water distribution or drainage requires a permit in most Illinois jurisdictions and must be performed by an Illinois-licensed plumber under the statewide Illinois Plumbing Code. Minor repairs such as clearing a stoppage or replacing a faucet are typically exempt, but replacing or rerouting piping is not. Naperville requires a permit to install or replace any trap, drain pipe, water, soil, waste, or vent pipe, and to replace or rearrange valves, pipes, or fixtures. Clearing stoppages, repairing leaks, and removing and reinstalling a water closet are exempt. Replacing a water or sewer service line also requires a permit. Plumbing contractors must submit a copy of their state contractor registration and a Letter of Intent, which the City uses to verify credentials and guard against identity theft. Permits are filed and managed through the City's Civic Access portal (napervilleil-energovweb.tylerhost.net). Confirm scope with the TED Business Group before starting.
- Who issues the permit in Naperville?
- The local building department for Naperville handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.