I have been using Paul Revere Revolutionary Service for about a year now, and they not only stand by their work, but I never need to worry about them rescheduling once my appointment is booked. I was having a heating issue recently, and thankfully it was not urgent. Their technician did a fine job, and it only took him about three hours, including a trip to the home improvement store, to take care of the problem. They are neat and knowledgeable, and I plan to continue using their services.