How to install garage door seal?

How to install garage door seal?


Installing a garage door seal is an essential step in maintaining a well-insulated and weatherproof garage. A garage door seal helps to keep out drafts, dust, pests, and moisture, ensuring a comfortable and clean environment. In this article, we will guide you through the process of installing a garage door seal, providing step-by-step instructions and helpful tips.

Gather the Materials

Before you begin the installation process, it is important to gather all the necessary materials. Here are the items you will need:
– Garage door seal kit (available at hardware stores)
– Measuring tape
– Pencil or marker
– Utility knife
– Screwdriver
– Hammer
– Nails or screws (depending on the type of seal)
– Caulk gun and silicone caulk (optional, for additional sealing)

Measure and Prepare

Start by measuring the width of your garage door. Use a measuring tape to determine the length of the seal needed. It is recommended to add a few extra inches to ensure a proper fit. Once you have the measurements, mark the seal accordingly using a pencil or marker.

Next, clean the bottom of your garage door thoroughly. Remove any dirt, debris, or old seal remnants to ensure a smooth installation surface. This step is crucial for proper adhesion of the new seal.

Install the Garage Door Seal

1. Take the garage door seal kit and carefully unroll it. Ensure that the seal is facing the correct direction, with the rubber side facing down and the flange side facing up.
2. Position the seal along the bottom edge of the garage door, aligning it with the marks you made earlier. Make sure the seal is centered and extends slightly beyond the width of the door.
3. Using a screwdriver or utility knife, secure the seal in place by inserting nails or screws through the pre-drilled holes in the flange. Alternatively, some seals come with adhesive backing, allowing for easy installation without the need for nails or screws.
4. Repeat the process of attaching the seal along the entire width of the garage door, ensuring a tight and secure fit.
5. If necessary, trim any excess seal length using a utility knife. Be cautious while cutting to avoid damaging the seal or the door.

Additional Tips

– Check the garage door seal periodically for signs of wear and tear. Replace it if you notice any damage or deterioration.
– Consider applying a bead of silicone caulk along the edges of the seal for additional weatherproofing and insulation.
– If your garage floor is uneven, you may need to use a threshold seal in addition to the bottom seal to ensure a proper seal.


Installing a garage door seal is a relatively simple process that can greatly improve the insulation and protection of your garage. By following the steps outlined in this article and using the right materials, you can effectively seal your garage door and create a more comfortable and energy-efficient space.


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