Punum Roofing of Houston, Inc. has some of the highest certifications in several major shingle brands, including: GAF Master-Elite Roofer, Owens-Corning Preferred Contractor and a CertainTeed SELECT ShingleMaster (SSM), which guarantee the highest level of customer service and craftsmanship. As part of this, a supervisor will stay on your job throughout the whole project to ensure you are happy with your roof. Finally, we don’t make you put money down, so you won’t pay until you’re happy with the work.