How to replace garage door seal?

How to replace garage door seal?


Replacing the garage door seal is an essential maintenance task that helps keep your garage clean, insulated, and protected from the elements. Over time, the seal can wear out or become damaged, leading to drafts, water leaks, and increased energy costs. In this article, we will provide a step-by-step guide on how to replace a garage door seal, ensuring that your garage remains secure and well-insulated.

Materials Needed

Before you begin replacing the garage door seal, gather the following materials:

– New garage door seal
– Measuring tape
– Utility knife
– Pliers
– Screwdriver
– Soap and water (for cleaning)

Step 1: Measure the Existing Seal

Start by measuring the length of the existing garage door seal. Use a measuring tape to get an accurate measurement from one end to the other. This measurement will help you determine the length of the new seal you need to purchase.

Step 2: Remove the Old Seal

To remove the old seal, locate the screws or nails that are holding it in place. Use a screwdriver or pliers to remove them. Once the fasteners are removed, carefully pull the old seal away from the door. Be cautious not to damage the door or any other components during this process.

Step 3: Clean the Door

Before installing the new seal, it’s important to clean the door surface thoroughly. Use soap and water to remove any dirt, debris, or adhesive residue left behind by the old seal. Ensure that the surface is dry before proceeding to the next step.

Step 4: Install the New Seal

Unroll the new garage door seal and position it along the bottom edge of the door. Start at one end and work your way to the other, ensuring that the seal is aligned properly. Trim any excess length if necessary, using a utility knife.

Step 5: Secure the New Seal

Once the new seal is in place, secure it using the provided screws or nails. Make sure to space them evenly along the length of the seal to ensure a secure fit. Tighten the fasteners enough to hold the seal firmly in place, but be careful not to overtighten and damage the seal or the door.

Step 6: Test the Seal

After installing the new seal, close the garage door and check for any gaps or areas where the seal is not making proper contact. If you notice any gaps, adjust the seal as needed or consider consulting a professional for assistance.


Replacing the garage door seal is a relatively simple task that can have a significant impact on the overall insulation and protection of your garage. By following the steps outlined in this article, you can ensure that your garage remains well-sealed and protected from the elements.


– Home Depot:
– Lowe’s: