Master Trade Licences

As of January 1, 2015, the City of Oshawa will no longer be issuing Plumbing Business Licences. However, we will be asking our customers to provide us with the name and the "Certificate of Qualification Number" of the plumber they are using for their construction.

If you are a plumber and will be doing work in the City of Oshawa, please make sure you provide your clients with this information.