Less than 2% of roofing contractors have earned this very exclusive certification. This is your assurance that you are dealing with the “cream of the crop” when you call Coastal Windows & Exteriors. Our Master Elite certification is proof that we stay current on the latest roof installation techniques. This is why GAF has authorized us to offer enhanced warranties that even include a factory inspection of your finished roof. For more on why you should hire a Master Elite contractor, please click here .