Flaherty Mechanical Contactors 548 Baldwin St, Bridgeville, PA15017 Flaherty Mechanical Contactors is a plumbing and HVAC company. providing routine service calls as well as service and…More maintenance for businesses. Specializing in new and remodeled commercial mechanical systems, Flaherty maintains high standards and maintains the U.S. Steel building in downtown Pittsburgh. Comments and questions can be submitted via the website or answered over the phone. Customers also have access to 24-hour emergency service.