In the heat of the job, with money on the line, honest mistakes can be misinterpreted as dishonesty and your reputation (and the reputation of contractors in general) can take a hit. Many, many disputes with clients begin as a simple misunderstanding of the scope of the work. The biggest problem with an inaccurate estimate is that it leads to an inaccurate bid. If your estimate is inaccurate, it will be almost impossible for you to make money.Īn inaccurate estimate greatly increases the chances of payment delays, lien claims, and litigation. This is because the contracting game is won at the beginning, not the end. This may seem obvious, but it bears repeating - a good estimate is the key to success as a builder.