Make Sure Your New Roof Is Built to Last FIND A REPUTABLE ROOFING CONTRACTOR NEAR YOU KTM Exteriors & Recycling offers a wide range of exterior improvements and recycling services in Hampstead, NH, the Metro Boston area, and throughout Southern Maine. Our roofing contractor can help you choose the right roofing material, skylights and siding for your home or commercial property. Getting a new roof is the perfect time to upgrade. Talk to a roofing contractor about adding a skylight window installation to the package.