Overhead Door Company of Austin , a division of DuraServ, provides Austin, Texas with loading dock equipment, commercial door products, and installation services. We are a distributor and installer of Serco loading dock, and Albany, Chase Traffic Doors, Overhead Door & Rytec commercial doors in Texas. Call Overhead Door Company of Austin today at (512) 442-1561 or connect with us online to find out how we can help you. Commercial Products Dock Levelers & Lifts Serco loading dock levelers and lifts include industry-leading features that increases productivity and improve the safety of the loading dock. Mechanical Dock Levelers Serco W series mechanical dock levelers set the industry standard for durability, dependability, and safe operation. Mechanical dock levelers have a single-point adjustment extension spring counterbalance, unlimited float hold-down, an integral maintenance strut, and lip support latch features. · Serco Mechanical Dock Leveler Model WL ·