Open communication is the most important quality of a good home improvement contractor. If you find a someone asking straightforward questions and clearly listening to you and understanding what you want and expect from your home project, this is what you want in a good contractor.
Don’t fall for scare tactics to get you to sign off on extras. Your walls won't crumble because you didn't get that ultra-expensive siding.
Do some research on your contractor, find out if he is reputable and how long in business. Always get a written and signed contract for the project. The contract should detail all the work that is required and the cost, no matter how big or small the project is.
Don’t go with the Contractor that is so eager to get things started that technicalities get brushed away. He'll say you don't need to sign a contract and try to get you to pay for the project up front.
3. Enticed by Low/High Bids
You should always be wary of bids that are substantially higher or lower than those of the competition. High bids often result from a busy contractor who isn't looking to take on more work unless the profit margin makes it worth it.
Just as you would with a suspiciously low bid, ask both the contractor and the rest of the bidding contractors why one single bid is so much higher or lower than the others.
Be cautious of the Contractor who offers a bargain in exchange for using your home as an example of their work or tempts you with a low price that's only on the table if you sign that day.