Do I Need a Permit for Electrical Work in Wisconsin?

Electrical permits are required in Wisconsin for any new electrical installation, modification, or extension. This includes adding circuits, upgrading the electrical panel, installing new outlets or light fixtures on new circuits, wiring a new addition or basement, installing a sub-panel, and connecting generators or solar panels. The permit ensures the work is inspected for compliance with the National Electrical Code (NEC) as adopted by Wisconsin. Minor repairs that do not require a permit typically include replacing existing light switches, outlets, or light fixtures in the same location without modifying wiring; replacing a circuit breaker of the same type and amperage; and installing low-voltage wiring (doorbells, thermostats, data cables) in some municipalities. However, even for these exemptions, the rules vary by city, so check locally. Electrical permit fees range from $50 to $1,500 depending on the scope of work and municipality. Simple jobs (a few new circuits) cost $50 to $200. Service upgrades or whole-house rewiring cost $200 to $1,500. In Wisconsin, homeowners can perform electrical work on their own owner-occupied single-family home, but the work must be permitted and inspected. For all other properties, electrical work must be performed by a licensed electrician (Master or Journeyman).

Check Your Municipality

Permit requirements, fees, and exemptions vary by municipality. Verify the specifics for your location.