You can never be too careful. Do not be afraid to check with your local city or state government officials on housing code standards or building concerns.
When it comes to money, be sure to get a detailed list of the project costs and the payment schedule in writing, in advance. NEVER pay for the full cost of the project “up front.” And finally, after you have inspected the work and before you issue the contractor the final payment, request a “lien waiver.” A lien waiver is a legal document that indicates that the project has been paid in full and releases you and your property from any future liability and/or claims by the contractor or their subcontractors for non-payment of work performed or materials provided.