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How to Fix the Gap Under The Garage Door

Your garage should be a haven for your car or anything else that you keep inside of it. However, if there’s a gap between the bottom of your garage door and the floor, it’s almost as if you’re leaving your garage door open all day and night. Even a gap of less than an inch can lead to serious problems for your car and your belongings. When there’s a gap between your garage door and the floor, unwanted elements from outside have an invitation to come in and wreak havoc. Rainwater and melting snow can leak into your garage and soak your belongings. Dirt and leaves can be blown in by the wind and create more work for you when cleaning up your garage. Cold air can enter and raise your heating bills, or your costly air conditioning can escape during the summer. A garage door gap means your garage can become a breeding ground for insects and rodents. What’s more, it’s just plain unattractive and hurts your home’s curb appeal.

The good news is, if you have a garage door gap to fix, Garadry has the solution for you. Our garage door seal products can fix the gap between your garage door and the floor to create a weatherproof barrier that will help protect your garage and everything in it. We offer a full line of garage door weather seals for residential and commercial applications in multiple sizes. Our seals are made from durable and flexible thermoplastic materials in the case of our residential products, and robust aluminium in the case of our commercial products. No matter what type of garage door you have or how big the gap, Garadry has a product that can meet your needs.


Our seals work by creating a watertight seal between the garage door and the floor. Because not all garage doors or gaps are created equal, be sure to determine exactly what you need before installing your Garadry garage door seals. Follow the steps below and feel free to refer to our buying guide for more information.


    First, you’ll need to measure the gap you want to seal. Because garage floors typically aren’t completely level, you should measure the gap in several places across the threshold to make sure you buy the seal that will completely close the gap everywhere. For garage floors that are very uneven or ones that slope, Garadry’s Ramp Design seal or our 1 ½” Flood Barrier/Flood Diverter provides the best level of protection. If you live in an area where flooding or heavy storms are frequent, you may want to choose a higher seal to provide additional protection for your garage. A taller seal can sit slightly behind your garage door to allow it to close properly.


    Determining the length of the seal your garage door will need is as simple as measuring the width of your garage door. Our thermoplastic garage door seals can be cut to the proper length using a hacksaw, utility knife or even a sharp pair of scissors. You can choose to fit the seal from wall to wall if you want additional protection.


    Finally, installing your seal is a matter of determining where the seal will fit snugly behind the door to create the watertight seal necessary to protect your garage. The bottom edges of our thermoplastic seals are serrated to ensure the strongest bonding to the adhesive. Meaning, your new Garadry garage door seals will stay put for as long as you need.

For a visual demonstration of how our garage seals can help, check out our new video below!


Don’t let a gap in your garage door undermine the protection your garage is supposed to provide to your belongings. When you choose garage door seals from Garadry, you’ll get the benefit of our years of expertise in the industry and keep your garage sealed from the harmful elements. Contact us to get started on adding some necessary protection to your garage.

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