New installation, repair, & preventative maintenance: Springs, Panels/Sections, Edge of Dock Levelers, Pit levelers, Dock Bumpers, Dock Seals, Cables, Security Gates, Security Shutters, Security Grilles, Door installation, Door repair. Duluth Dock and Door understands the importance of keeping your loading docks and doors fully functioning. Whether it's to ensure shipment and delivery time times or to meet audit specifications, Duluth Dock and Door can help meet your requirements. We have the experience to help you find the best door for your needs.