About

About Chelsea Building Products, Inc. Since 1975, Chelsea Building Products, Inc. has been designing and extruding PVC and composite profiles for the building materials market used in windows, doors, shutters, mouldings and Everlast Advanced Composite Siding. From its headquarters in Oakmont, PA, Chelsea Building Products is an integrated manufacturer providing product design, material development, extrusion tooling technology and finished product to manufacturers and distributors throughout North America. As a member of the aluplast group, Chelsea Building Products has a global footprint, strong financial backing, and additional technical resources for continued growth and expansion.