REDONDO BEACH, CA— Xcel Mechanical Systems entered the mechanical contracting industry as a highly technical and capable Design Build mechanical contractor that specialized in engineering and delivering Aerospace High Bays and Clean Rooms that were then used for research, or to manufacture sensitive instruments and equipment. We continue to secure work with those longtime clients, and in fact have worked in nearly every building on every aerospace campus in the South Bay. That resume and capability now extends to secured sites located in Northeast Los Angeles County, under the purview of Xcel Mechanical’s new Palmdale-Lancaster Project Management Office.