I had used Gilmore a couple of times for service on our thirty year old system and then two days before Christmas 2010, the furnace finally gave up and went terminal. I had three differant companies come out and give estimates. One guy did not even look in the attic before he gave me a bid, the other could not do anything for me until after the new years..( and lose the tax deduction!) Gilmore came out right away, did a thorough appraisal of what we needed and gave us a fair price and said they could get it done before new years. They even offered to give me a credit for the $150+ gas valve they had replaced less than a month before! Job was done on time and we love the work! Real pro's with great after sales follow up!