The question, “how is your warranty program funded?” will probably get you some puzzled responses. The fact is, most contractors have never even considered how to pay the expenses associated with warranty callbacks, and some contractors just seem to vanish when they get a warranty call. A professional contractor will be preparing for callbacks (they will happen, even to the best contractors) by including a line item in their budget for warranty work. Ask the question and see what kind of response you get. Sometimes, how the question is answered is more important than the answer itself!
His team is very meticulous, very careful, very clean, and very courteous! They're also very accommodating. For instance, I mentioned a couple spots under some angled siding where I thought a little extra filling was needed, and they obliged without question. Same thing with a request for a stain-proof primer under a balcony. Doing these kinds of little things without question or extra charges is really nice!