A plumbing permit is required for most new plumbing installations, replacements, or alterations to an existing plumbing system, including fixtures, appliances, piping, drains, waste, and vent systems.
Plumbing work must generally be completed by a licensed plumbing contractor. However, homeowners who live in the property may perform certain plumbing work with a permit, including:
- Replacing certain plumbing fixtures and appliances when no alteration to the existing plumbing system is required
- Replacing a water heater
- Installing or replacing a clear water sump pump and related discharge piping
- Installing certain stormwater conveyance systems that do not connect directly to the City storm sewer
Permits are generally not required for routine repairs to existing fixtures or appliances that do not alter the plumbing system.
Not sure if your project requires a permit or a licensed plumber? Contact Building & Safety at (414) 479-8907 before beginning work.
How to Apply
You can apply online using this self-service portal. You can upload any needed documents and process payments online.
Fees
Plumbing permit fees vary depending on the type and scope of work and are generally calculated per fixture or as a flat fee.
Water calculations may also be required for new buildings or when additional fixtures change the water demand for a property.
Use the Self Service Portal Fee Estimator to estimate the permit fee for your project. Final fees are determined during the application and review process.