Your garage door may be the source of wetness, filth, or rat droppings in your garage if you’ve spotted them. The bottom seals of garage doors, designed to keep out water, wind, dirt, and other invaders, may wear down over time due to their size and weight.

Concrete floors or driveway aprons might move, fracture, or settle beneath the door and leave enormous gaps that ordinary seals can’t fill.

You can Seal Your Garage Door in five different methods.

Five Methods to Seal Your Garage Door

The rubber seal at the bottom of your garage door is the first line of defense against water, dirt, and pests. Over time, this seal can crack, wear down, or become brittle. Replacing it is straightforward and can immediately improve your garage’s protection against outdoor elements.

A threshold seal is applied directly to the garage floor where the door closes. This creates an additional barrier that fills gaps caused by uneven concrete or settling foundations. Threshold seals are particularly effective when combined with a bottom door seal.

Weatherstripping along the vertical tracks and top of the door prevents drafts, moisture, and pests from entering through the sides. Check existing weatherstripping regularly and replace it when it shows signs of wear or damage.

Inspect the area where your garage door frame meets the wall. Any gaps or cracks should be filled with appropriate caulk or expanding foam to prevent air and moisture infiltration. This step is often overlooked but essential for complete sealing.

If your garage floor has settled unevenly or developed cracks, even the best seals won’t fully protect your space. Consider resurfacing or leveling problem areas to ensure your door can close flush against the ground across its entire width.