We just enrolled into the Energy Conservation program with Superior and it is amazing the difference it has made in our house's utility bills. They replaced all our windows, changed our lights, did air-sealing, insulated our attic to R60, put in new thermostats, installed a water heater blanket, also they did infrared imaging to show us the improvements really did what they said they would do. We were given an energy savings guarantee of 30% and they saved us 36%! After Energy savings we have a payment of about ten dollars a month to do all of the improvements. These guys are amazing and I would recommend them to anyone who wants the best value. EXCELLENT!