Use a construction proposal template to automate the creation of contracts and make sure you never put the wrong name or figure in a proposal again. Easily customize proposals in the format that the owner requires through the construction proposal software feature menu within HeavyBid.In this blog, we will teach you how to write an effective construction proposal that stands out from the competition. How do I submit a bid or proposal? All formal bids and proposals shall be submitted as specified in the solicitation document.