Representatives of utilities and reputable businesses will have proper identification. When in doubt, look up the company's number in the phone book and call to verify the identity of the worker. If a contractor requests advance payments or large cash deposits, don't provide them unless you have checked out the contractor's credentials and have a written contract with a description of the work to be performed, the total cost, and guarantees on labor and materials. Do not accept verbal agreements. Get a copy of the contract before paying and a receipt afterward.
Common complaints involve payment for repairs and work that never gets started or completed.
Avoid transient repair contractors. If you hire a contractor make sure you get names, addresses, phone numbers, license plate numbers and vehicle descriptions. If a problem does occur, this information will help law enforcement locate the contractor. When you pay your contractor ask for a lien waiver. A lien waiver is a receipt that states that the workers and material suppliers will not ask you for money once you have paid the contractor.