Complete the Cost Proposal section for each county you would like to bid on. Vendors may bid on one or both counties and up to two contracts may be awarded.Download our free plumbing proposal template and see how ServiceTitan solves the challenges of the proposal process. Do you need to create and send a professional plumbing bid? Use the Skynova free plumbing bid template to grow your business today. The Bid Proposal Form template is available for free. There are no charges for using this template to gather and evaluate proposals from potential contractors. 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.