GP Martini Roofing Co.

GP Martini Roofing Co. is a residential and commercial roofing contractor covering installation and repair. Its residential work includes asphalt shingles, metal roofing, cedar, slate and shake-style products, and Timberline Solar shingles from GAF Energy. The company also fabricates its own metal panels for custom metal roofs, and it handles commercial single-ply membrane systems such as EPDM, TPO and PVC.

The company serves Chester, Delaware, Bucks and Montgomery counties and Northern Delaware, and offers free estimates with no obligation. Its crews also handle storm damage and emergency roofing calls. The office is at 55 Dowlin Forge Road in Exton, Pennsylvania, and the company offers a "for the life of your roof" warranty on residential work.