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View Process Steps for the Application for Renewal

Step 1: Step-By-Step Instructions for completing the Application for Renewal or Registration of Contractor License are available online by visiting the City of Detroit website at (under the Buildings, Safety Engineering and Environmental Department). The step-by-step instructions are intended to assist the applicant in properly completing the form. It is important that the instructions are followed closely to ensure that the application is processed in a timely manner.

Step 2: Applications are available online (for printing purposes only) at or by visiting the City of Detroit Buildings, Safety Engineering & Environmental Department, Plumbing Division (Room 408) at Two Woodward Avenue, Coleman A. Young Municipal Center, Detroit, MI 48226 between the hours of 8:00AM - 4:00PM, Monday through Friday.

Applicant must have a current and valid State of Michigan or City of Detroit issued Master Plumbing License/Plumbing Contractors License before he/she can apply for Renewal/Registration with City of Detroit. If applicant holds only a Plumbing Contractors License, he/she must hire a Master Plumber before he/she can renew or register his contractor license.

Step 3: Documentation required:
Registration: Current Driver's License or State ID. Current State of Michigan OR City of Detroit issued Master Plumbing License and Plumbing Contractor License.

Renewal: Current Driver's License or State ID. If Master Plumber hired is Licensed with State of Michigan, Plumbing Division will require a copy of the current Master Plumber License.

Note: Make checks (starter checks are not accepted) payable to: "Treasury City of Detroit". Other payment methods accepted are cash, credit cards (Master Card, Visa or Discover only), money orders and cashier's checks.

Fees: click here to see Mechanical Licenses and Registrations Fee Schedule.

If application is submitted by mail, the License will be mailed to applicant. This process takes 5 - 10 business days.

If application is submitted in person, the License is issued to the applicant in person on the same day.
Step 4: A supervisor in the Mechanical Division reviews and verifies the information on the application, and approves it with his/her signature.

Step 5:
Applicant pays applicable fees at the L&P Cashier station.

Step 6:
License is issued the same day (If by mail - 5 to 10 days to process license).