What'd they do to the water heater?those men finally finished up at 2 pm today. Im so glad their gone . It was really getting on my nerves. They really worked their tail ends off. The whole house is sealed tightly. every nook and cranny. Underneath too. They went thru 24 cans of that expanding foam They did the water heater, the whole nine yards. They tested it all with their fancy fans too. latest estimated cost was over 12k. I got damned lucky. warranty for 1 yr with company and 10 yr manufacturing .