How to Replace Garage Door Bottom Seal: Keeping Your Garage Secure

Garage doors are not just about convenience; they’re crucial for security, weather protection, and energy efficiency. One often overlooked component is the bottom seal. Over time, this seal wears down, leading to drafts, moisture intrusion, and potential security risks. In this guide, we’ll discuss how to replace the garage door bottom seal to maintain the integrity of your garage door system.

Identifying the Problem:

Before replacing the bottom seal, it’s essential to identify the issue. Common signs include drafts under the door, water seepage during rains, or visible wear and tear on the existing seal. If you notice any of these signs, it’s time for a garage door replacement.

Materials Needed:

Gather the necessary materials before starting:

  • New garage door bottom seal
  • Utility knife or scissors
  • Measuring tape
  • Lubricant (optional)

Step-by-Step Replacement Guide:

Prepare the Garage Door:

  1. Ensure the garage door is fully open to provide easy access to the bottom seal. Disconnect the automatic opener for safety.

Remove the Old Seal:

  1. Use a utility knife or scissors to cut away the old seal. Be cautious not to damage the door or the seal track.

Clean the Track:

  1. Thoroughly clean the bottom seal track to remove any debris or old adhesive. A clean surface ensures proper adhesion for the new seal.

Measure and Cut the New Seal:

  1. Use a measuring tape to determine the length of the new seal needed. Cut the seal to size using a utility knife or scissors.

Install the New Seal:

  1. Starting from one end, insert the new seal into the track along the bottom of the door. Ensure it fits snugly and sits flat against the garage floor.

Secure the Seal:

  1. If the seal comes with adhesive backing, carefully peel off the protective layer and press the seal firmly into place along the entire length of the door. Alternatively, some seals may require screws or nails for secure attachment.

Test the Door:

  1. Once installed, manually close and open the garage door to ensure the seal does not interfere with its operation. Make any necessary adjustments if the door does not close properly.


By following these steps, you can effectively replace the garage door bottom seal, maintaining the integrity of your garage door system. Regular maintenance and timely replacements ensure optimal security, weather protection, and energy efficiency for your home. If you encounter any challenges during the process, consider seeking assistance from professionals like Integrity Garage Door Repairs in Colchester.