French Drain Cost in Prosper, TX
Real price ranges for French drain installation in Collin County, including what drives cost up or down and what to expect on a typical Prosper property.
Most Prosper homeowners pay $2,500 to $5,500 for a complete drainage solution. Smaller targeted installs are on the low end; whole-yard systems that address multiple issues are on the high end.
Price Ranges by Scope
| Scope of Work | Price Range |
|---|---|
| Basic side-yard French drain, 40-60 linear feet | $1,500 to $2,800 |
| Backyard system, 80-120 linear feet with single outlet | $2,500 to $4,500 |
| Foundation perimeter drain, 3 sides of typical Prosper home | $3,000 to $5,500 |
| Full yard system with catch basin + downspout routing | $4,000 to $7,500 |
| Property-line intercept + backyard drain combined | $4,500 to $8,000 |
| Catch basin only (no French drain) | $800 to $1,800 |
| Underground downspout routing, 2-4 downspouts | $600 to $1,500 |
What Affects Cost in Prosper TX
Linear Footage
The most direct cost driver. More footage means more trench, more aggregate, more pipe, and more labor. In Prosper, a typical side-yard drain run is 40 to 80 feet. Whole-yard systems that tie the front, sides, and back together can reach 150 to 250 feet.
Trench Depth and Soil
Shallow drains at 12 to 18 inches cost less to install than deep perimeter systems at 24 to 36 inches. Prosper clay is dense and requires more equipment effort than sandy soils. Hand-digging around buried utilities adds labor cost per linear foot in affected sections.
Outlet Type and Distance
The cheapest outlet is a surface discharge at the curb or a low point at the rear of the property. Running pipe to a city storm drain or through a long side yard to reach the street adds both material and labor cost. Some Prosper lots have outlets that are simple; others require routing 80+ feet just to reach a compliant discharge point.
Catch Basins and Cleanouts
A catch basin is a box-style inlet that collects surface water at a specific low point; cleanouts provide access to flush the pipe later. Both add cost ($200 to $600 each) but serve important functions. Most Prosper jobs benefit from at least one catch basin in the low corner of the backyard.
New-Construction vs. Established Yard
Installing drainage in a new-construction Prosper home before landscaping is cheaper than retrofitting a mature yard with sod, irrigation, and established plantings. If you are about to landscape a new home, drainage is much more cost-effective to do first.
Why Prosper Costs Slightly More Than National Averages
Most cost websites quote national averages of $20 to $45 per linear foot for French drain installation. In Prosper and Collin County, the actual cost tends to be $25 to $55 per linear foot. The difference comes from three Prosper-specific factors.
First, the clay. Vertisol clay is significantly harder to trench than sandy or loam soils, and it takes more aggregate volume per linear foot to create a functional drainage bed. Second, outlet complexity: many Prosper lots, especially in newer subdivisions, have limited outlet options because the street curb is at a higher elevation than you would expect, or because the rear of the lot backs to a common area with no permitted discharge point. Third, tight lots: Prosper subdivision lots often require precision work in narrow side yards with fencing, utilities, and irrigation to work around.
None of these factors should deter you from getting a drain installed. The cost is still significantly lower than even minor foundation repair, and a well-installed drain in Collin County clay lasts 20 to 30 years with minimal maintenance.
The Wider DFW Market Rate, For Comparison
It is worth knowing what the rest of the metroplex charges, because it tells you whether a quote you are holding is reasonable. Across the Dallas-Fort Worth market in 2026, installed french drain work runs roughly $23 to $36 per linear foot, and a whole project in North Dallas typically lands between $2,500 and $4,250. A 100 foot run installed generally comes in at $3,000 to $5,000.
Two numbers get quoted that are not comparable and cause a lot of confusion. A surface-only drain, essentially a shallow gravel trench with no engineered outlet, is quoted at $10 to $15 per linear foot. It is cheap because it is not the same product, and on Houston Black clay it silts closed quickly. At the other end, interior or below-slab drainage runs $50 to $60 per linear foot, because it involves working under a structure. If one bid is dramatically under the others, check which of these three things it is actually describing before assuming you found a bargain.
Prosper sits at the upper half of the residential band rather than outside it. The reason is almost always outlet distance rather than any premium on the work itself.
Two Prosper Yards, Same Puddle, Very Different Price
The question we get most often is why a neighbour paid so much less. Here is the honest arithmetic on the two most common Prosper scenarios.
A standard subdivision lot. The wet corner is at the back fence, the curb is 50 feet away down the side yard, and there is a clean route past the AC pad. That is roughly 50 feet of trench, one catch basin, and a curb outlet. At market rate the job lands in the $2,000 to $3,200 band and is finished in a day. Nothing about it is complicated.
An estate lot in Star Trail, Whitley Place, or a rear section of Windsong Ranch. Same puddle, same basin, but the nearest legal outlet is 160 feet away, the route crosses an irrigation zone and a mature bed, and part of it has to be bored under a walkway. Now it is 160 feet of trench and pipe, sprinkler rerouting, and hand work through the planted section. The same visible problem is a $6,500 to $9,000 job.
The puddle is identical. The distance to somewhere the water can legally go is not. This is why we will not quote a Prosper drainage job from a photo, and why any per-foot price given before someone has established where your outlet is should be treated as a guess.
French Drain Cost FAQ
How much does a French drain cost in Prosper TX?
What is the cost per linear foot for a French drain in Collin County?
Do French drains in Prosper TX cost more because of the clay soil?
What makes a French drain job cost more?
Is a French drain worth it for a Prosper TX home?
Get an Accurate Estimate for Your Property
Generic cost guides can only give you ranges. The only way to know what your specific Prosper drainage job will cost is an on-site walk. We assess the slope, soil conditions, outlet options, and scope before quoting. No obligation.