HMS Interiors is a full-service interior and exterior union contractor that has been in business since 1980. It employs a work force of more than 300 carpenters, drywall finishers and laborers. The company provides a range of commercial and industrial interior and exterior construction services for customers throughout Pennsylvania, New Jersey and Delaware. It offers carpentry, fireproofing, insulation, layout, light gauge structural framing, millwork, glazing and demolition services. HMS Interiors also provides subcontracted services for carpets, electrical components, plaster, sprinklers, tiles and floors. Its projects include The Blue Cross Tower, One Liberty Place and Centre Square Towers. HMS Interiors maintains a location in Malvern, Pa.