SPS Insulation can increase your comfort by addressing temperature control at the source... Your thermal envelope, your attic and walls. Cold and drafty rooms in the winter and hot upper levels in the summer can become a thing of the past. SPS Insulation specializes in residential retrofit insulation. Often your problem with the insulation surfaces after living through the first heating or cooling season. Our trained mechanics carefully protect your home's contents before any work begins. We cover your floors, walkways, doorways and furnishings, treating your home delicately as if it were our own.