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Excavation·October 8, 2025

How to Know If Your Property Needs a French Drain

How to Know If Your Property Needs a French Drain

A lot of homeowners live with a wet yard for years before calling anyone. It's usually not one big flood that gets our phone to ring — it's a handful of small, repeated problems that finally add up. Here's what typically points to a drainage issue that a French drain can solve.

A section of lawn that never fully dries out

If there's a low spot that stays soft or spongy for days after every rain, water is pooling there because it has nowhere else to go. Over time that area often thins out or turns a different shade than the rest of the lawn.

Water sitting near the foundation

Grading should carry water away from the house on all sides. If you notice puddling along the foundation, or mulch beds that stay saturated right up against the siding, that water is one heavy storm away from becoming a basement problem.

A musty smell in the basement or crawl space

Before a basement leaks visibly, it usually gets damp. A persistent musty smell, especially after rain, is often the first sign that surface water is finding its way down instead of away.

Erosion or washed-out mulch after storms

If mulch, stone, or topsoil keeps ending up somewhere it shouldn't after a storm, water is moving across your property with more speed and volume than the ground can absorb.

Sump pump running constantly

A sump pump that used to run occasionally and now runs after every rain is telling you something changed — usually more water is reaching the foundation than the drainage system around it was built to handle.

What a French drain actually does

A French drain is a trench with a perforated pipe and gravel that intercepts water before it reaches the area you're trying to protect, then redirects it somewhere it can safely drain. It's not the right fix for every situation — sometimes regrading or a catch basin does more for less money. We walk the property, watch where water is actually moving, and recommend whatever solves the actual problem, not just whichever job is bigger.

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