Here is a list of 10 questions that you should ask any contractor while receiving your quote.
1. Do you have a business card?
As soon as I walk in to an estimate and exchange greetings, I always hand out one of my business cards. You will now have the contractor's information and it shows professionalism on the contractors part.
2. Do you have any before and after photos of your work?
I keep a photo album in my van with before and after photos of previous work. I also have a bunch of photos on my phone from more recent jobs.