HVAC & Plumbing Services From 1960. Larry & Sons Inc. in Hagerstown, MD, has been providing HVAC and plumbing service to home owners in the Chambersburg, PA, metro and surroundings communities since 1960. From repairing the oldest furnace to installing geothermal cooling, our technicians have been trained in the service and repair of both traditional and modern heating and cooling equipment. They arrive ready to tackle your issue quickly so that you can get back to enjoying your home. At Larry & Sons, our services include the installation and maintenance of: • Heating systems • Air conditioning systems • Plumbing • Drains and sewers • Pumps • Septic tanks Thinking about updating your kitchen or bath? Our full-service crew offers design and installation to support you through the renovation. From installing faucets to new tubs, our team works efficiently to complete your remodel on-time and on-budget. In fact, we have an A+ rating with the Better Business Bureau. Call Larry & Sons today to schedule service!