Our house was cold in the winter and hot upstairs in the summer. We had the service representative Brian come to see if the builder had put adequate insulation in our attic. We assumed since our house was a relatively new home, it would have had enough insulation, but we were surprised at how little was in there! Once the insulation was installed by very corteous and efficient servicemen, we noticed an immediate difference! Our bills are much lower and we have saved money already!