French drain cost in Houston usually lands between $10 and $35 per linear foot for an outdoor yard drain, based on HomeGuide's 2026 cost guide. A 100-foot yard drain often costs $1,000 to $3,500. Deeper drains, interior drains, and extras like a dry well or downspout tie-ins raise the price.
Below you will find typical price ranges, the factors that change them, and what to ask for in a quote. These are market ranges from public cost guides, not our prices. Houston Landscape Images gives free, itemized quotes after we see how water moves through your yard.
French Drain Cost in Houston at a Glance
| Type of job | Typical range | Source |
|---|---|---|
| Yard or exterior drain | $10 to $35 per linear ft | HomeGuide |
| Exterior drain (wider range) | $10 to $50 per linear ft | Angi |
| Houston-area estimate | $23 to $36 per linear ft | HomeBlue (Houston) |
| 100-foot yard drain | $1,000 to $3,500 | HomeGuide |
| 200-foot yard drain | $2,000 to $7,000 | HomeGuide |
| Deep perimeter drain | $30 to $90 per linear ft | HomeGuide |
| Interior drain | $40 to $100 per linear ft | Angi |
| Downspout tie-in | $150 to $350 per downspout | HomeGuide |
| Pop-up emitter (bubbler) | $30 to $85 to add | HomeGuide |
| Dry well | $500 to $3,000 | LawnStarter |
Most Houston homes need an outdoor yard drain, not an interior basement drain. That keeps most projects in the lower rows of this table.
What Is a French Drain?
A French drain is a gravel-filled trench with a perforated pipe inside. Water soaks into the gravel, enters the pipe, and flows by gravity to a safe outlet. That outlet might be the street, a pop-up emitter in the lawn, or a dry well.
Houston gets a lot of rain in short bursts, and much of the area sits on clay soil that soaks up water slowly. Water that can't sink in pools on the surface, sits against the foundation, or turns beds into mud. A French drain gives that water somewhere to go.
What Changes the Cost of a French Drain
1. Length of the drain
Length is the biggest factor. Pricing is usually per linear foot, so a 150-foot run costs roughly three times a 50-foot run.
2. Depth and soil
Deeper trenches take more digging, more gravel and more hauling. Angi notes that clay soil means higher labor costs, since it is heavy and slow to dig.
3. Where the water goes
Every drain needs an outlet. Draining to the curb is often simplest. If there's no good path, you may need a pop-up emitter, a dry well or a sump pump. Each one adds cost.
4. Downspout connections
Gutters dump a lot of water in one spot. Tying downspouts into a buried line is a common add-on. HomeGuide lists it at $150 to $350 per downspout.
5. Access and what is in the way
Tight side yards, fences, tree roots, sprinkler lines and patios slow the work. If the trench crosses your sprinkler system, those lines need to be moved or repaired.
6. Restoring the yard
After the trench is filled, the surface needs to look good again. That can mean new sod, mulch or rock. Ask whether restoration is included in your quote.
7. Permits
Some cities require a permit for drainage work, especially when water is sent to the street or a storm drain. HomeGuide lists permits at $100 to $375, and Angi lists $50 to $200. Check with your city and your HOA.
Signs You Need a French Drain
- Standing water in the lawn a day or more after rain
- Soggy flower beds or plants that keep dying from wet roots
- Water pooling against your slab or around the AC pad
- Mud or washed-out mulch along fences and side yards
- Water flowing onto the patio or into the garage
If you see these, it's worth a site visit before you add turf, sod or a new patio. Fixing drainage first protects everything you build on top.
French Drain vs. Other Drainage Fixes
A French drain handles water that soaks into the ground. Surface water that sheets across a patio or driveway may need a channel drain instead. Some yards only need regrading so water flows away from the house. Many yards need a mix of these fixes.
We walk the yard, look at slope and downspouts, and recommend the simplest fix that works. See our French drain services to learn how we plan and install drainage systems.
How Long Does a French Drain Last?
A well-built French drain lasts a long time. HomeGuide and Angi both put the lifespan at about 30 to 40 years. Filter fabric around the gravel helps keep soil from clogging the pipe.
Get a Free French Drain Quote
Water problems don't fix themselves, and they tend to get worse with each storm. Our family-run crew has worked on Houston yards for more than 30 years, from Richmond to the inner loop. Contact us for a free drainage assessment and a clear, itemized estimate.
