About Versatile, Factory-Trained HVAC Technicians ArkLaTex Mechanical Service, LLC. is a mechanical service company specializing commercial, industrial, and process heating and cooling systems. We are based in the Tyler, Longview, and Shreveport areas. We offer service, repair, routine maintenance, equipment replacements, and service contracts. We have factory trained technicians for a wide range of cooling equipment including Trane, Carrier, York, Daiken, McQuay, Vilter, Frick, and AAON. We also have factory trained boiler technicians for Aerco, Lochinvar, and Cleaver Brooks. We are factory trained for startup and repair for ABB vfd’s.