The contractor tells you he (or she) is finished and then hands you the bill. Do not let him walk out the door without doing a walk-through to review and inspect all the work that was done. If you also had a designer involved, it would be helpful to have the designer on hand to ask any questions or identify things you might miss.
During the inspection, you should ensure that the work contracted for was actually completed to your satisfaction and that it looks great. If inspections were performed and signed off on you should obtain copies of these for your records. If work was not completed to your satisfaction, the contractor should be recording this on a "punch list" so that you can both agree what needs to be done to "make it right."
The walk-through inspection is also a great time to ask questions about warranties (if you haven't already received warranty documentation) for the products used and what maintenance is required. The contractor or designer may also present you with a folder or notebook that has all the information you might need about the products, appliances, or fixtures installed during your project, and warranty and maintenance information.
One of the key pieces of information you should obtain is whether the warranty will continue if the home or commercial unit is sold. Many warranties are only good for the "first owner." Ideally this information should have been used in the initial product selection, but if not, you should be sure you have this information before you sign off on the project.
Once everything is completed to your satisfaction sit back, relax and enjoy for years to come.
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