This company is top notch. Bill is very professional and is knowledgeable in many areas. They use a very effective approach and with no fiberglass which was a big concern for our family and mice problems. We had double bubble foil insulation installed in our basement. The basement was unusually warm with all the pipes and furnace. The furnace was turning on every nine minutes and run for around six minutes. when they finished the job, the temp measured at 55 degrees and the furnace turned on every 23 minutes and the furnace ran for 3 minutes and shut off. We saved 40 gallons of oil the month of January! We highly recommend this company