Residential and commercial plumbing projects require a plumbing permit. In order to get a permit, a plumbing plan must be submitted to the Health Department.Allegheny County Health Department's Plumbing Program inspects and permits new or modified residential and commercial plumbing installations. Do you need to create and send a professional plumbing bid? Use the Skynova free plumbing bid template to grow your business today. With these essential nine steps, you'll learn how to create a takeoff, calculate costs and write a proper proposal for any plumbing job you want. Download our free plumbing proposal template and see how ServiceTitan solves the challenges of the proposal process.