When we purchased our 30 year old home, we were not shocked to find that we needed to replace the furnace. We were shocked to find that the cold air returns and much of the system was improperly installed. We chose Big Valley because their installer was knowledgeable and was honest with us about the scope of the work that needed to be done and what it would cost. At the end of it all, we had a great Trane furnace installed, cold air returns were fixed, and several joins in the duct system were redone (like the one that ran to nowhere before, and the upstairs living room vent that was not actually connected to duct work before Big Valley came along!) Our bill reflected the estimate and there were no hidden costs. We appreciated the honest and professional service.