Why Is My Garage Door Letting Water in During a Storm?

The bottom rubber seal, called a threshold seal, can crack, flatten, or pull away over time. When that happens, rain that pools on your driveway slides under the door. Wind-driven rain also forces water through small gaps at the corners where the door meets the frame.

Another frequent culprit is the garage floor. Concrete can settle, crack, or slope slightly toward the door, creating a low spot where water collects and seeps underneath. If the door itself is misaligned, it may not press evenly against the seal, leaving a visible gap on one side.

• Inspect the bottom seal for cracks or gaps
• Check the side jambs for daylight or loose trim
• Look for cracks or uneven spots in the concrete floor
• Test the door's alignment by closing it fully and feeling for air movement
• Clear debris from the tracks that can keep the door from seating
• Watch for water stains on the walls near the door frame

If you see water coming in around the sides or top of the door, not just the bottom, the problem may be more than a worn seal. A misaligned track or a damaged door panel can let water in during heavy storms. In that case, a local water damage pro can inspect the area and recommend the right fix.

The pros can also check for hidden issues like water getting behind the drywall or into the floor structure. If the floor has settled significantly, they may suggest leveling or sealing the concrete. They can help you decide whether a simple repair is enough or if more extensive work is needed.

Storms can bring heavy rain, so catching a leak early can prevent damage to stored items and the garage structure itself.

• Water stains on the ceiling or walls near the door
• Standing water inside the garage even after the rain stops
• The door is hard to open or close smoothly
• You see mold or mildew growing on the door or floor
• The concrete floor is cracked and shifting

If a storm causes water damage to your garage, your insurance policy may help cover the cost of repairs. Policies vary, and your insurer decides what is covered. Check your policy documents and talk to your agent about what types of water damage are included.

Take photos of the water entry point and any damaged items before you clean up. This documentation can be useful if you file a claim. Do not throw away damaged items until you know what your insurer needs to see.