The worst choice. Dishonest and unable to provide detailed billing explaining why it took 4 hours to find a fault that took another technician 2 seconds to respond to. Had to come out twice which I had to pay for as the technician did not check that the fan was working properly as this was mentioned in the first request. The company did not discuss the issue or the cost beforehand and did the job with no communication before or even after arriving at the house. I see this as my own fault for not being home when the technician said he was there and trusting him to be honest with his time. I was wrong. CALL KVT!
If there is another pipe company available, choose it is my advice.