When it comes to automatic door openings, STANLEY is setting the standard for tough, dependable, long-lasting performance. Since we invented the first swing door operator in 1932, weve grown into the largest manufacturer, installer and service provider of automatic doors in North America. From engineering and development, to product delivery and quality, STANLEY is constantly moving forward with innovative solutions you can depend on. As a service customer, you will receive the expertise of the industrys largest and most experienced automatic door service provider in North America. You can be assured your equipment is kept in top operating condition, planned maintenance is completed as required, parts replacement meet manufacturers specification, and all activity is appropriately documented thereby minimizing your liability exposure.