How to Replace a Garage Door Bottom Seal: A Step-by-Step Guide

Is your garage door seal looking worn out, letting in drafts, pests, and rainwater? Don’t fret! Replacing the bottom seal of your garage door is a straightforward DIY task that can enhance your garage’s insulation and protection.

In this guide, we’ll walk you through the simple steps to replace your garage door’s bottom seal, ensuring a snug fit and a well-protected space. Let’s dive in!

garage door replacement Midlothian

Step 1: Gather Your Tools and Materials

Before you start, make sure you have all the necessary tools and materials at hand. You’ll need a tape measure, pliers, a utility knife, a rubber mallet, a replacement bottom seal (compatible with your garage door model), and screws or nails.

Step 2: Measure and Remove the Old Seal

Begin by measuring the length of your garage door to determine the size of the replacement seal you’ll need. Next, carefully remove the old seal by pulling it off from one end. If it’s attached with screws or nails, use pliers to remove them.

Step 3: Prep the Bottom Edge

Thoroughly clean the bottom edge of your garage door to ensure proper adhesion for the new seal. A clean surface will allow the seal to stick securely and prevent any gaps.

Step 4: Install the New Bottom Seal

Unroll the replacement seal along the bottom edge of the garage door. Start at one end and work your way to the other, ensuring the seal is aligned evenly. Secure the seal in place using the provided screws or nails. A rubber mallet can help you gently tap the seal into position for a snug fit.


Congratulations, you’ve successfully replaced the bottom seal of your garage door! By following these simple steps, you’ve not only improved the insulation and protection of your garage but also saved yourself from potential drafts and pest invasions. 

Regular maintenance, like replacing worn-out seals, goes a long way in ensuring your garage remains a secure and well-insulated space. If you ever need assistance or want to explore more garage-related tips, don’t hesitate to reach out to professionals like garage door installation Midlothian services. 


How do I know if my garage door seal needs replacement?

If you notice drafts, water leakage, or pests making their way into your garage, it’s a sign that your bottom seal might be compromised. Additionally, if the seal appears cracked, brittle, or damaged, it’s time for a replacement.

Can I use any bottom seal for my garage door?

It’s essential to use a bottom seal that is compatible with your specific garage door model. Different doors may require different types of seals for optimal performance. Check with your manufacturer or a professional garage door installation Midlothian service for guidance.

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