The short answer
Check the Slope
A driveway should slope away from the garage so water runs off. If it slopes toward the garage, or if it is level, water will collect near the door. Over time, settling or heavy vehicles can change the slope. You can test this by pouring a bucket of water on the driveway and watching where it flows.
If the water runs toward the garage, the ground may have settled. This often happens after heavy rain or if the soil underneath was not compacted well. A gradual slope of at least 1 inch per 4 feet is recommended. If your driveway is flat or slopes inward, you may need to have the surface regraded.
- Pour water on the driveway to see the flow direction.
- Look for low spots where water collects.
- Check if the concrete or asphalt has sunk near the garage.
- Measure the slope with a level and a straight board.
- Consider if tree roots or frost heave have shifted the surface.
Inspect for Cracks and Gaps
Cracks in the driveway or gaps between the driveway and the garage floor can let water seep underneath. This can cause the soil to wash away, creating more settling. Fill small cracks with a concrete or asphalt patching compound. Larger gaps may need professional repair.
The gap where the driveway meets the garage is a common trouble spot. Water can run down the side of the garage and pool there. Check the seal along the bottom of the garage door. If it is worn or missing, water can enter the garage. Replace the weatherstripping if needed.
- Look for cracks wider than 1/8 inch.
- Check the seal under the garage door.
- Inspect the joint between driveway and garage floor.
- Notice if water drips from the garage door when it rains.
- See if the driveway surface is crumbling or flaking.
Look at Drainage and Gutters
Downspouts and gutters that empty onto the driveway can add a lot of water in one spot. If the downspout is not directed away from the garage, it can cause puddling. Extend the downspout with a flexible hose or a gutter extension to carry water farther away.
The ground around the garage may also slope toward the building. Check the grading of the soil next to the foundation. It should slope away for at least 6 feet. If it does not, you may need to add soil to create a proper slope. This helps keep water away from the garage and the driveway.
- Check if downspouts empty onto the driveway.
- See if gutters are clogged with leaves or debris.
- Look for low spots in the soil near the garage.
- Consider installing a French drain if water is persistent.
- Make sure the ground slopes away from the foundation.
Consider the Water Table and Rain
In some areas, the water table can rise during heavy rain, causing water to seep up through the driveway. This is more common in low-lying areas or near the coast. If the puddling appears after long periods of rain, it may be groundwater rather than surface runoff.
In areas with a high water table, heavy rain can push groundwater up through the driveway. This is more common in low-lying spots or near the coast. Snowmelt can also cause puddling when the ground is still frozen and cannot absorb water. If the puddling is seasonal, it may be tied to snowmelt or spring rains. You may need to improve drainage or install a sump pump if water is persistent.
When to Call the Pros
If you have tried simple fixes like cleaning gutters and adjusting downspouts, but the puddling persists, it may be time to consult a professional. A water damage inspection can identify if water is entering the garage or causing structural issues. Local water damage pros can assess the situation and recommend a solution.
They can also check for hidden leaks or moisture problems. If the puddling is due to a high water table or poor soil, they may suggest drainage solutions or regrading. The cost of repairs depends on the extent of the problem and the type of driveway. Get a few opinions before deciding on a course of action.
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Call Now (617) 404-2753Frequently asked questions
Can I fix the puddling myself?
Yes, for minor issues like a clogged downspout or a small crack, you can fix it yourself. Clean gutters, extend downspouts, and patch small cracks. If the problem is due to settling or a high water table, you may need professional help.
Will puddling damage my garage?
Puddling can damage your garage if water seeps under the door or through cracks. Over time, this can cause wood rot, rust, and foundation issues. It is important to address puddling to prevent costly repairs. If you notice water inside the garage, act quickly.
How do I know if it is a drainage problem or a foundation issue?
If the puddling happens right after rain and is near downspouts, it is likely a drainage issue. If it happens during dry weather or after snowmelt, it may be a foundation or groundwater issue. A water damage inspection can help determine the cause.