Here at Certified Roofing Solutions, we include a 10-year workmanship guarantee with all of our roofing projects in addition to our manufacture's warranty, which can range from 30 years for architectural shingles to a 50-year/lifetime limited warranty, depending on which products you select for your project. It is important for us to not only provide superior materials but also keep roofing costs affordable for our customers. We work with our suppliers to get the best prices possible, using only the most trusted, warrantied, reliable products for our projects.