There’s no additional cost for CertainTeed Solar’s comprehensive system and workmanship warranty. Because you’re working with a CertainTeed Solar Master/ Select Solar Master or Solar Roofing Specialist. CertainTeed Solar’s warranty is straightforward. If you’re having a problem with your solar system, contact your CertainTeed Solar Master / Select Solar Master or Solar Roofing Specialist. If they are not available, you can submit a warranty claim directly with CertainTeed by calling 800-345-1145