Below, we've developed a free proposal PDF for you to download. Once you customize your free plumbing bid template, our platform allows you to download it as a PDF or immediately send it as a private link via email.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. Plumbing contracts ensure that your project starts out on the right foot. Explore their 10 critical components. This plumbing proposal template makes it easy to create and sign professional estimates for your company's potential clients. The contractor is responsible for securing the cost quoted in the bid. Please provide bids as a whole project and broken out per location. A bid sheet contains all the details regarding project costs, and how much a contractor plans on charging for it.