How Much Does a French Drain Cost in McKinney, TX?
Most competitors won't publish real numbers. Here's an honest breakdown of what McKinney homeowners actually pay for French drains.
Get a Free Drainage Estimate
Tell us about your yard. If an appropriate local provider is available, we may connect you with one independent drainage contractor. No obligation.
Quick Answer
Last updated July 2026
A complete French drain installation in McKinney, TX typically costs $3,000-$8,000, with most homeowners in the North Dallas area paying an average of $2,500-$4,250. Priced per linear foot, expect $20-$50/LF depending on depth, soil, and system complexity. Smaller standing-water fixes — a downspout extension or a single corrected low spot — often land in the $250-$600 range.
To be clear about what these numbers are: they're typical market ranges for the McKinney/DFW area, not a quote from us. We're a quote-matching service — we don't install drains ourselves. The independent contractor you choose is responsible for assessing your actual yard and providing any written quote. A contractor match is not guaranteed.
Cost Per Linear Foot
| System Type | Cost per Linear Foot |
|---|---|
| Exterior surface French drain | $10-$15/LF |
| Standard residential French drain | $23-$36/LF |
| Foundation perimeter drain | $35-$55/LF |
| Buried downspout extension | $20-$35/LF |
Sourced from HomeBlue and Project Cost Atlas Dallas-Fort Worth market data, July 2026. Your exact rate depends on soil, depth, and access to your yard.
Project Size Tiers
| Project | Scope | Estimated Cost |
|---|---|---|
| Small: single wet spot | 50-75 LF, 1 catch basin | $1,500-$3,000 |
| Medium: yard drainage | 100-150 LF, 2 catch basins, downspout tie-in | $3,000-$6,000 |
| Large: full yard system | 200+ LF, multiple catch basins, regrading | $6,000-$12,000+ |
Why McKinney Costs More Than National Averages
- Blackland Prairie clay excavation: clay is much harder to dig than sandy or loamy soil, which slows labor and wears equipment faster, typically adding 15-25% to labor cost.
- Required depth: drains often need to go 18-24 inches deep to get below the clay layer, meaning more excavation than markets with looser soil.
- Flat lots: without natural slope, McKinney jobs often need more catch basins and longer pipe runs to reach a discharge point.
- Permit fees: where required, typically $50-$150.
Other Drainage System Costs
- Minor standing-water fix (downspout extension, small low-spot correction): $250-$600
- Catch basin: $800-$2,500 installed
- Channel/trench drain (driveways, patios): $1,500-$4,000
- Buried downspout extension: $500-$1,500
- Yard regrading: $1,000-$4,000+
- Combined system (French drain + catch basins + downspout tie-in, the most common full fix): $3,500-$10,000
Hidden Costs Homeowners Miss
- Landscaping repair after trenching (sod, mulch replacement): $300-$1,500
- Outlet point: if there's no easy place for water to discharge, a compliant outlet or dry well can add $500-$1,500
- Root removal when trenching near mature trees: $200-$600
- HOA approval: usually free, but the review can take weeks in some McKinney communities — build it into your timeline
The Cost of Waiting
The most expensive drainage problem in McKinney is the one that reaches your foundation. Water pooling against a slab feeds the clay's swell-and-shrink cycle that cracks foundations, and foundation repair commonly runs $5,000-$25,000+ — several times the cost of the drainage system that helps prevent it. That doesn't mean every puddle is an emergency; water pooling in the middle of the lawn is a nuisance, not a crisis. But water that sits within a few feet of the house after every rain is worth fixing sooner rather than later.
How to Save Money on Drainage Work
- Get at least three estimates. Prices for the same job genuinely vary between contractors.
- Schedule in late fall or early spring. It's the slower season, and McKinney clay is far easier to dig than in the bone-dry peak of summer.
- Ask whether a simpler fix works first. A catch basin or downspout extension sometimes solves what looks like a full French drain job.
- Combine drainage with planned landscaping. If you're redoing beds or sod anyway, trenching disruption costs you less.
- Don't pay emergency pricing. Very few drainage problems are true emergencies — standing water is urgent-feeling but rarely overnight-urgent.
DIY vs. Hiring a Pro
A basic above-grade downspout extension or a minor surface grading fix is reasonable to DIY. But once the job involves buried pipe and gravel, clay soil, or water pooling within 10 feet of your foundation, hire a professional. An incorrectly installed French drain in clay soil commonly clogs and fails within two years.
Frequently Asked Questions
- How much does a French drain cost per linear foot in Texas?
- In the Dallas-Fort Worth area, expect $10-$15/LF for a basic exterior surface drain and $23-$36/LF for a standard residential system, with foundation perimeter drains running $35-$55/LF.
- How much does it cost to fix standing water in McKinney?
- Minor standing water fixes — extending a downspout, correcting a small low spot — typically run $250-$600 in this market. If the water problem needs a real drainage system (French drain, catch basins), typical projects range from $1,500 for a single wet spot up to $8,000+ for a full-yard system.
- What's the cheapest way to fix yard drainage in McKinney?
- Get three estimates, schedule work in late fall or early spring (slower season, easier digging), and ask whether a simpler catch basin can solve the problem before committing to a full French drain system.
- Why won't anyone quote me an exact price over the phone?
- Because the price depends on things nobody can see from a phone call: the linear footage of the run, how deep the trench needs to go through clay, where the water can legally discharge, and what's in the way (roots, fences, hardscape). That's why every number on this page is a range — an accurate price requires an on-site look.
- Is a French drain worth the cost in McKinney?
- If water is reaching your foundation, usually yes. McKinney's clay swells and shrinks with moisture, and that movement is the leading cause of slab foundation problems in North Texas. Foundation repair commonly runs well into five figures — several times the cost of the drainage work that helps prevent it.
- Do these prices include repairing my lawn afterward?
- Not always — ask. Trenching tears up sod, and landscaping repair typically adds $300-$1,500 depending on the yard. Some contractors include basic restoration in the quote, others line-item it, so have it spelled out in the written estimate.