Tom came out on the same day I called and did a detailed analysis of the problem with the fan on our gas furnace, which turned out to be a defective circuit board. Had to order the replacement board, but Tom was able to hotwire the fan so that we had heat in the house that chilly evening. The next day, Rob (the owner) called with an estimate for replacing the bad board. It sounded reasonable, but I mentioned to him that I had seen an alternate board on Amazon.com that looked like it might also work. He was unfamiliar with that particular part, but after we hung up, he took the initiative to confirm that that alternate part would in fact work, which saved me more than $100 for the board. Rob then came out a few hours later (even earlier than he had promised) to install the board and check out the whole furnace, including the add-on humidifier, to make sure everything was working correctly. Great, fast service. I would certainly hire them again.
