as stainless steel, aluminum, plastic, copper, and HDPE for process and plant applications. Tri-Tech Mechanical delivers plumbing contracting for water supply, septic, pressure process piping, dewatering, pumps, and lift stations. Its in-house mechanical engineers provide CAD-based design, heat load calculations, plumbing and hydronic heating design, and stamped drawings for design-build projects. The firm also manages sheet metal fabrication, equipment setting, control design and installation, field engineering, and building system commissioning. General contracting services include site development, concrete work, roofing, restoration, tenant improvements, and energy management systems.