Superior ExpertiseSuperior Door & Gate Systems is the leading supplier and provider of sales and service for overhead doors, dock levelers and automatic gates and accessories for over 30 years. During that time we have built a solid reputation for quality and service at competitive prices.Consider the following:Leading supplier for over 30 years of door, dock, gate and all related equipmentComplete source for design, fabrication, installation, service and maintenance30+ equipped vehicles available 24 hours a day, 7 days a week, 365 days a year!Extensive inventory in our Mississauga warehouseSuperior ProductsOur 'Total Systems Approach' to perimeter and facility access control is based on the integration of quality components, including doors, fencing, gates, electric gate operators, anti-terrorist crash barriers, telephone access systems, card readers, and more. more... See more text