I was concerned that my roof shingles were drying out and were nearing their lifespan much too early. I contacted Guaranteed Roof to ask about their product, their process and their warrantee. I was pleased with their thoroughness and the time they spent with me explaining the process and the treatment. They were respectful of my property and very efficient. My roof now is refreshed and looking better than ever! I highly recommend the folks at Guaranteed Roof, you will not go wrong hiring this company. The results are beautiful along with five more years of roof life. Thank you Guaranteed Roof!