Why Does My Garage Flood When It Rains Hard?

Water flows downhill, so the ground around your garage should slope away from the foundation. If the soil settles or landscaping creates a dip, rain pools near the door and seeps under it. Walk the perimeter during a storm to see where puddles form.

You can improve the slope by adding fill dirt and compacting it so water moves away. A swale or French drain can redirect runoff. If the grading is complex, a local water damage pro can assess the situation and suggest practical fixes.

Clogged gutters overflow during heavy rain, dumping water right next to your garage foundation. Leaves and debris block the flow, so water spills over the edges instead of moving away. Downspouts that end too close to the wall can also saturate the soil.

Clean your gutters at least twice a year, and extend downspouts so they discharge several feet from the foundation. You can add a splash block to direct water away. This simple maintenance prevents a lot of garage flooding.

If water keeps getting in despite your efforts, or if the flooding is severe, it is time to call the pros. They can identify hidden sources like underground water pressure or foundation cracks. They also have the tools to dry out the space completely.

After a flood, remove standing water quickly to prevent mold and structural damage. You can use a wet vacuum or mop for small amounts, but a large flood may need professional water damage cleanup. Check your policy to see what your insurance covers. Policies vary, and your insurer decides what is covered.