Choosing One Time Construction assures that you are dealing with an expert and dependable professional roofing contractor. We are accredited as experts by the top three shingle manufacturers. Our company has earned CertainTeed Select ShingleMaster, GAF Master Elite and Owens Corning Preferred Contractor credentials. We also have an A Plus rating with the BBB. We will help you compare home improvement companies, proper installation, quality of materials and manufacturer’s warranties. We’ll explain and demonstrate the differences; you’ll gain the facts needed to make a confident, informed choice that pleases your style and budget.