We are very pleased with our more energy efficient and reliable system from Weather Master. The whole process, from the estimate to installation was seemless and stress-free. Weather Master's price and warrantee made our decision simple when compared to our other 2 estimates (including a company that we had used for 10 years prior). No problems at all in the last 1 1/2 years. Their newsletter often has practical and timely advice. We'll certainly use Weather Master again in the future and recommend them to friends and family.