If your yard ponds every winter, you have probably searched for French drain prices and found numbers scattered from a few hundred dollars to five figures. The spread is real, but it is not random. Here is what drains actually cost in 2026, and what decides where your project lands.
The short answer
National 2026 cost guides put exterior yard French drains at roughly $10 to $35 per linear foot installed, with a typical full project landing between about $2,800 and $6,500 and the national average near $5,000. Shallow runs that solve a soggy lawn sit at the low end; deeper drains protecting slabs and foundations, or runs crossing hardscape, sit higher. Basement perimeter systems price in a different league entirely, but with the Sacramento area’s slab-on-grade housing, that category rarely applies here.
| Drain type | Typical 2026 range (installed) |
|---|---|
| Shallow yard drain | $10 - $25 per linear foot |
| Deeper exterior drain at a foundation | $25 - $50 per linear foot |
| Curtain drain intercepting a slope | $12 - $30 per linear foot |
Treat these as published national ranges, not quotes. Every real number comes from a specific yard.
What moves the price
Length and depth. The trench is the project. A 40-foot side-yard run and a 120-foot back-fence run are different jobs, and every extra foot of depth is more digging, more rock and more haul-off.
Our soil. The clay and hardpan under much of the Sacramento region is exactly why drains are needed here, and it also digs slow. Cost guides note that heavy clay, rock and buried obstructions can add hundreds to a couple thousand dollars against the base price. Local hardpan is not a surprise to us - it is priced in from the start.
What the trench crosses. Open lawn digs easy. Runs that cross walkways, established landscaping or tree roots take protection, restoration or rerouting, and the price follows.
The discharge point. Water has to end somewhere legal: street gutter, swale, or a dry well on the property. A short gravity run to the street costs less than routing around a house or building a dry well where nothing else works.
Where people waste money
The most common waste is paying twice: a cheap drain without filter fabric silts shut in a couple of winters, and the second contractor digs up the first one’s work. The second is treating a symptom - pumping or regrading one low spot while the water source goes unaddressed. A drain designed from where the water starts costs more than a patch and less than doing the patch every few years.
Do you actually need one?
Not every wet yard needs a French drain. Sometimes regrading solves it. Sometimes a catch basin and solid pipe do the job. A French drain is the right tool when water is trapped in the soil itself - the classic Sacramento-area pattern where winter rain sits on clay with nowhere to go. Our French drain page covers how the system works, and the broader drainage and irrigation work often pairs with it. Drains behind retaining walls are their own requirement - not optional there.
Getting a number for your yard
Ranges are for reading; quotes are for planning. RMR Construction walks the property, finds where the water starts and ends, and designs the run before pricing it - licensed (CSLB #1088628), family-owned, based right here in the area. See how we build them on the French drains page, or call (916) 533-4758.