DALCO Heating & Air Conditioning installed a humidifier in my new house. They did not try to upsell me, which one of the other companies I spoke with did. They came when they said they would come in and the installer was very conscious of keeping the house clean. Everything worked out perfectly. It couldn't have been any better. I would certainly call again if I had any need. They had the best pricing, great ratings, and were very dependable.