A good contractor doesn’t just do quality work, of course. Workers should be courteous, pleasant, and capable of clear communication. Ideally, the people altering your home’s look will be enthusiastic about the task rather than jaded and burnt out. Find out from your references what kind of attitude the company’s workers displayed, and whether they behaved professionally. Also ask whether the crew stayed on schedule, and whether they arrived early each day, did their work, and got out of there.