I purchased a new furnace from Knueve & Sons, Inc. and they installed it as well. Everything was done on time and in good condition. The installation crew was personable and I had no trouble at all with them. There was absolutely no clean up for me to do. They hauled off the old system and that was great, I did not want to deal with that at all! I want them to know that I appreciate the job that they did and I feel like they did a really good job of it!