When talking with the homeowner, find out if the job was completed on time and within budget. Was the contractor sensitive to their needs before, during and after the project. Do not assume a contractors license is valid. If the contractor you choose has not met the stringent requirements necessary to become a licensed contractor, he may not have the experience, nor the ability, to complete the project to the satisfaction of the homeowner. Make certain the contractor you hire is adequately insured.
Accidents can occur during the project.
People can be injured, including those working on the job. It is extremely important that these contingencies are insured to protect you from liabilities. If the contractor working on your home is uninsured, you will very likely be held personally responsible to satisfy any claims. Contact your local Better Business Bureau. When soliciting bids for your project, do not blindly accept the lowest.