Founded in 1981 H&S Constructors Inc. specializes in heavy industrial construction. Its areas of expertise are vessel fabrication and erection, pipe fabrication and erection, welding of exotic metals using Shielded metal arc welding (SMAW) and Gas tungsten arc welding (GTAW), structural steel fabrication and erection, pipe fabrication and installation, along with foundation construction and all phases of site work. Located in Texas, the company offers a broad range of construction services, such as civil, mechanical, fabrication, equipment erection, piping, structural, crane rental and American Society Of Mechanical Engineers (ASME) Code work. H&S Constructors engages in all phases of construction, including grass roots, revamps and plant maintenance as well as construction projects. It runs pipeline, industrial, and vessel and machine shop division. The company's client le includes Valero Refining Company, Koch Pipeline, Flint Hills Resources, Citgo Refining Company, etc.