Know who is working on your house!
If I were to assess which complaint in the real estate realm I have received the most in my 31 years in the business, the far and away winner would be problems with contractors. A great contractor for the type of work that you need done is worth their weight in gold! A bad one? You might be dealing with the problems they create all the way until and through when you go to sell your home. As this article suggests start with their licensing. Then go to referrals and references, and don’t be afraid to talk to multiple vendors.