This can be a tricky question, but we always advise our customers to set aside additional funds beyond the anticipated cost. Unforeseen issues, including bad framework, outdated wiring, and rotting wood can result in additional costs beyond those outlined in the proposal.  We always try to limit these expenses and predict these problem areas well in advance. However, issues can arise beyond our control that need our immediate attention. No matter what may happen, our team will do everything we can to “make it right”.