Gatter & Diehl is headquartered in Mechanicsburg, Pennsylvania and provides premiere level engineering services throughout the building construction industry. Gatter & Diehl was established in 1946 and is active and licensed in 19 states. Specialties include cost effective energy saving solutions for new builds, renovations and retrofits. Our engineering and design services are specialized in systems such as; Heating, Ventilation, Air Conditioning, Controls, Lighting, Power, Telecommunications, Plumbing and Fire Protection. Services typically include; programming and preliminary review of systems, preparation of design documents, drawings, specifications, investigation, site surveys, reports, studies, construction observation, shop drawing review, operating and life cycle cost analysis, commissioning, energy modeling, plus digital archiving and facility management document services.