Welcome to Metal Roofing Pennsylvania the leading residential installer of standing seam metal roofs in Bucks County, Chester County, Montgomery County, Lancaster County, Delaware County, and Philadelphia! Standing seam metal roofing is ideal for historical homes, low sloping roofs, partial roofs such as sun rooms and porches and even contemporary homes. Metal Roofing Pa stands apart because we manufacturer our metal roof panels on site, and use our own certified metal roof installers.