Arlington, TX · Drainage & French Drains
Foundation Drainage and French Drains in Arlington
A lot of foundation movement in Arlington starts with water in the wrong place. Gutters, downspouts, grading and drains are usually the cheapest part of a repair, and sometimes all a house needs.
01 — What this covers
The work itself
- French drains along walls that stay wet
- Surface drains for low spots and patios
- Downspout extensions and buried lines
- Regrading so the soil slopes away from the slab
- Root barriers near large trees
- Soaker hose layouts for dry spells
- Drainage planned alongside foundation repairs
02 — Detail
Water, not just weather
Foundations don't move because of rain or drought alone. They move when the soil under one part of the house has a different moisture level than the soil under another. One side wet and the other dry makes the clay swell on one side and shrink on the other, and the slab flexes between them.
That's why a house can be fine for decades and then start to crack after a change: a new fence, a gutter that came loose, a tree that grew, a patio added against the wall. Water got redirected, and the soil followed.
03 — Detail
The roof and the downspouts
A roof collects a lot of water in a storm and delivers it to a few downspouts. Wherever a downspout empties, that's where a large amount of water goes. If it's at the foundation, the soil there is saturated every time it rains.
Extending downspouts several feet from the house, or connecting them to buried lines that discharge well away, is the simplest and most effective fix in most cases. Clean gutters matter too: an overflowing gutter drops water right at the wall.
04 — Detail
Grading, low spots and creeks
The soil next to the foundation should slope away from it. Over years, mulch builds up and landscaping edges trap water, and a lot that once drained now holds it. Regrading is inexpensive compared with a pier and sometimes removes the need for one.
In parts of Arlington near creeks, drainage channels and low areas, the problem can be bigger. Water collects on the lot or arrives from higher ground, and the solution may involve a surface drain, a French drain or both, with an outlet that sends water where it can legally and safely go.
05 — Detail
French drains and surface drains
A French drain is a gravel-filled trench with a perforated pipe that collects water that soaks into the ground and carries it to an outlet. It suits walls where water seeps in underground. A surface drain is a grate that collects water standing on the ground and pipes it away.
Both are only as good as the outlet. The pipe needs to end somewhere lower than where it starts, and far enough from the house.
06 — Detail
Trees and dry summers
A large tree near the house can pull a great deal of water from under the slab in summer. A root barrier limits how far roots reach under the house without killing the tree. In dry spells, a soaker hose a foot or two from the slab keeps the soil from shrinking away. Check your sprinklers too: zones that soak one wall while missing another are a common cause of uneven moisture.
07 — Detail
Drainage within a repair
If a house needs piers, ask what the plan does about the cause. A repair that lifts the slab but leaves a downspout pouring next to it may need to be repeated. Many companies include drainage in the same estimate, and some warranties depend on reasonable drainage.
08 — Detail
A weekend test you can do yourself
After the next heavy rain, walk around the house with a notebook. Note every downspout and where its water ends up, every spot where water stands more than a day and any place where the soil feels soft beside the slab. Take photographs. Repeat the walk in late summer and compare the soil's condition.
Share the photos with the inspector; they make the visit more useful and help prioritize the drainage plan.
09 — Detail
When the problem is the neighbor's water
Sometimes the water on your lot isn't yours. A neighbor's grading, a downspout aimed at your fence or a drain that empties onto your side can keep a wall wet no matter what you do on your own property. The inspection can document where it comes from, and photographs taken during rain make the conversation easier.
Where a shared solution is possible, such as a swale along the property line or a drain that serves both lots, it's usually cheaper and lasts longer than each owner solving the problem separately.
How we work
Step by step
- 01
Walk the lot, ideally after rain, and note where water arrives and collects.
- 02
Plan gutters, downspouts, grading, drains and outlets.
- 03
Written estimate, coordinated with any foundation work.
- 04
Installation, testing the drain with water before closing the trench.
- 05
Maintenance notes.
What it costs
Extensions and regrading are the low end; French drains are priced mostly by length, depth and the distance to a safe outlet.
Questions
Drainage & French Drains — asked and answered
Can drainage fix a foundation problem?
It can stop mild cases from getting worse. It won't lift a slab that has already dropped.
Where does the water go?
To a lower, safe outlet, such as the street, a swale or a lower part of the lot, away from the house.
Is a soaker hose worth it?
In dry spells, yes. A foot or two from the slab, it keeps the soil from shrinking away from the edge.
Do root barriers kill trees?
Installed at a reasonable distance, no. An arborist can advise on large or valuable trees.
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