Hassler Roofing Inc. has been serving the Greater Lehigh Valley area for over 16 years. We are here to help you with all your Roofing, Siding, and Seamless Gutter needs. The owner personally oversees all jobsites to maintain our high quality standard of workmanship and customer service. We specialize in installing GAF Timberline Series Shingles, GAF Camelot Designer Series Shingles, GAF Slateline Designer Shingles, GAF Woodland Designer Shingles, GAF Monaco Designer Shingles, and GAF Grand Sequoia Designer Shingles. Call us today for you free inspection 610-694-0400.