Garage Doors & Openers | Oldcastle | Dor-Co Garage Doors
Standard+ Model XL rectanguar embossed, 9' to 7', Black, Window layout: Left-side Harmony
Standard+ Model XL rectanguar embossed, 9' to 7', Black, Window layout: Left-side Harmony
Eastman Estate Model E-21, 8' x 7', 14' x 7', Moka Brown, Desert Sand overlays, Orion windows
Eastman Estate Model E-21, 8' x 7', 14' x 7', Moka Brown, Desert Sand overlays, Orion windows
Standard+ Model XL, 16' x 7', Black, Window layout Perspective
Standard+ Model XL, 16' x 7', Black, Window layout Perspective
Eastman Estate Model E-13, 9' x 7', Ice White, Orion 4-lite windows
Eastman Estate Model E-13, 9' x 7', Ice White, Orion 4-lite windows

  • Where you’ll find YOUR garage door,
    opener, and repair specialist

    Why Choose Our Garage Doors

    Why Choose Our
    Garage Doors

    Certified technicians serving Oldcastle, Chatham, Sarnia & surrounding areas

    Certified technicians serving Oldcastle, Chatham & Sarnia

    We repair all brands of garage doors

    We repair all brands of garage doors


    GARAGA - Residential Garage Doors



    In business since 1976, Dor-Co Garage Doors is the area’s leading overhead door specialists. We install and repair both commercial and residential garage doors. Whether you’re planning a new construction or you’re in the middle of a renovation, our trained staff can successfully complete your overhead door installation.

    At Dor-Co Garage Doors, we carry products made by Garaga, C.H.I. Overhead Doors, Amarr and more. We believe these manufacturers are the best choice for your next garage door for many reasons. To see our wide range of garage door styles, please visit our image gallery.

    Dor-Co Garage Doors has three Ontario locations to better serve all of our customers. Come and visit our showroom in Oldcastle, Chatham or Sarnia. You may also call us toll-free at 1 800 590-4455 to make an appointment or schedule a service call. Or for a free estimate, please complete our online quotation form. We look forward to serving you!



    At Dor-Co Garage Doors, we know excellent service is of upmost importance to our customers. With almost 40 years in the industry, our experience sets us apart from the competition. Our knowledgeable staff will ensure your new garage door is properly installed.

    Our team is growing to meet our customers’ needs. We now have 15 service vehicles operating out of our three locations to provide installation, repair and maintenance services, including 24 hour emergency assistance (Oldcastle and Chatham only). To keep your overhead doors in perfect working condition, we recommend an annual preventative maintenance program. Contact us to learn more about our plans and services.

    Our team serves clients throughout Southwestern Ontario, including Oldcastle - Windsor, Essex County area, Chatham, Kent County area and Sarnia, Lambton County area. Call us or come and see us today!
    Oldcastle: 5340 Brendan Lane, R.R. #1, Oldcastle, Ont. N0R 1L0, (519) 737-6915
    Chatham: 698 Grand Ave. East, Chatham, Ont. N7L 1X6, (519) 352-5200
    Sarnia: 1030 Confederation St., Unit #5, Sarnia, Ont. N7S 6H1, (519) 336-3667


    Garage doors are typically the largest moving part of a home or building. Without an automatic door opener, they can be quite difficult to open or close. At Dor-Co Garage Doors, we believe choosing the right door opener is just as important as the door itself. That’s why we recommend LiftMaster door openers to all of our customers.

    LiftMaster products are number one in the industry. Made by the Chamberlain Group, these automatic door openers are built to last. Their motors are powerful yet quiet, making them a great choice. LiftMaster openers can be customized with a wide range of accessories including smartphone connectivity and security systems.

    To see which opener is best for your commercial or residential garage door system, please see the specifications listed in our door opener section. You may also visit one of our showrooms – our experts will be happy to provide you with personalized advice!




    Areas served by our team of professionals

    Windsor and all Essex County area, Chatham and all Kent County area, Sarnia and all Lambton County area



    C.H.I. Overhead Doors   Pentalift     

    Albany Assa Abloy     Besam Assa Abloy       Durascreen Systems    



    Visit the Better Business Bureau Website   International Door Association  Windsor Construction Association  American Association of Automatic Door Manufacturers Greater Windsor Home Builders Association Inc.  Canadian Federation of Independent Business  Chatham Kent Home Builders' Association Inc.  Canadian Door Institute of Manufacturers and Distributors

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