Your Reliable Garage Door Retainer Supplier
KOP DOOR is a professional supplier of garage door hardware. Our retainers (also known as bottom seal tracks ) stand out with high strength, excellent corrosion resistance, and precise fit. Designed specifically for the bottom edge of sectional garage doors, they firmly hold the bottom seal strip to effectively block wind, rain, dust, and insects. At the same time, it also helps maintain the indoor temperature.
With decades of experience in garage door systems, we provide high-performance retainers for residential and commercial garages, enhancing sealing performance, safety and overall durability.
Types of Garage Door Retainer
- T-type: Specially designed for installation in the groove, making insertion easy and installation quick.
- Bead type:Designed specifically for slot fixation, it ensures stable locking and reliable sealing.
Durability & Weather Resistance
The bottom seal of our garage door is mainly made of alloy aluminum which can guarantee maximum strength and long-term performance in all climate conditions. They resist rust, corrosion, and deformation, even in coastal, high-humidity, and extreme temperature environments. The robust channel design securely holds the bottom seal strip, ensuring the tight and consistent seal against the floor over years of daily use.
Quick & Easy Installation
With pre-drilled holes and included stainless steel screws, our retainers can be installed in minutes. Simply remove the old retainer, clean the bottom edge of the door, align the new retainers, insert your bottom seal strip, and secure firmly with screws. No special tools required.
Customization Service
Garage Door Retainers are highly customized to meet the special requirements of various garage door systems. Options include:
- Length: Available from standard residential sizes up to longer for large commercial applications
- Width: Multiple channel widths and depths to perfectly fit different bottom seal strips
- Shape: According to the type of the door, various retainer shapes can be selected
- Color/Finish: Natural silver, black powder-coated, white, and other customized finishes available
- Material: Aluminum alloy and plastic are both available
We can offer both PVC or EPDM retainers, and different colors are also also available.
Replace them if you notice bending, corrosion, cracks, loose fit, or difficulty holding the seal strip properly. It’s recommended to check the retainer and seal together for optimal performance.
The edges of the profiles are treated with rounded smoothing and grinding, without sharp corners. Normal lifting and lowering will not scratch the floor surface.
Regularly remove dust and debris from the retainer.Avoid scratching the rubber surface with sharp objects.
As long as the original bottom retainer width and the installation hole spacing match, it can be directly replaced; if there are differences in size, they can be cut as needed, and the modification can be done on-site, no need to replace the entire door body.