What yard drainage costs in Columbia
Planning ranges compiled from published sources, what pushes a quote up or down, and the questions that make two bids actually comparable. These are budgeting figures for Columbia, not a quote for your property.
Budgeting
Typical ranges
Depth and location drive the band far more than length does. A shallow yard drain runs $10 to $35 per linear foot; a full-depth exterior footing drain $30 to $90; an interior basement system $40 to $100 and commonly $5,000 to $18,000 total. Rock, heavy clay, tree roots and hand-digging in a tight side yard all push toward the top of each range.
| Scope | Typical range | Most common |
|---|---|---|
| Shallow yard drain | $10 – $35 | $20 |
| Curtain drain | $10 – $25 | $18 |
| Deep exterior footing drain | $30 – $90 | $55 |
| Interior basement perimeter drain | $40 – $100 | $70 |
Ranges compiled from Angi, HomeAdvisor, HomeGuide. Reviewed 2026-07-18.
Variables
What moves the price
Two quotes on the same property can differ by a wide margin and both be honest. These are usually why.
Trench depth
The largest single lever. A shallow yard drain intercepting surface water is a different order of work from excavating to the footing, which may involve shoring and working alongside the foundation.
Machine access
A mini excavator that can reach the trench line changes the economics completely. A narrow side yard, a gate that will not take a machine, or work under mature trees means hand digging.
Soil and obstructions
Heavy clay, rock, high water table and established tree roots all slow excavation. Roots in particular force hand work and careful routing if the tree is to survive.
Discharge arrangement
A gravity outfall to daylight is cheapest. Where the site does not fall, a sump basin, pump, power supply and discharge line add both capital cost and an ongoing maintenance item.
Materials specified
Rigid perforated PVC costs more than corrugated flexible pipe and silts up far less. Washed stone volume and filter fabric quality are what determine whether the system still works in fifteen years.
Collection features
Each catch basin, channel drain, pop-up emitter or dry well is a separate item. A long simple run is cheaper per foot than a short run with several collection points.
Comparing quotes
Questions worth asking anyone who bids
Ask every bidder the same list. The differences in the answers are the real difference between the numbers.
- Where exactly does this water come from, and where will it discharge?
- What fall have you designed, and how will you verify it during installation?
- Rigid or corrugated pipe, and why that choice for my soil?
- Is the aggregate wrapped in filter fabric, and what happens when it eventually blinds?
- Would regrading or downspout extensions solve part of this more cheaply?
- If a sump and pump are proposed, what happens in a power cut during a storm?
- Can you camera the existing line before we assume it needs replacing?
Pitfalls
Where people lose money
Installing a drain with nowhere to go
A trench without a viable outfall becomes a linear reservoir. It works for one season while the surrounding soil absorbs the overflow, then stops, and the failure is expensive to diagnose after the fact.
Skipping the cheap fixes first
Downspout extensions and correcting the fall of ground against the foundation resolve a large share of complaints for very little money. Going straight to an excavated system can mean paying thousands to solve a hundred-dollar problem.
Omitting filter fabric
Without a fabric envelope, fine soil migrates into the stone and progressively blinds it. The system works well initially and degrades invisibly, typically failing five to ten years in, when it is all buried under established planting.
Inconsistent fall
A pipe laid by eye develops low spots that hold water and collect silt. Standing water in a perforated line also freezes, which in a cold climate can lift and crack the run.
Get a quote for your actual project
What this site is
Columbia Yard Drainage is a referral site, not a contractor. We do not hold a license, own a truck, or send a crew. We research yard drainage pricing and practice, publish what we find, and hand your request to the local company we work with in Columbia.
That company quotes, schedules, and stands behind its own work, and it contracts with you directly. We do not mark up the price, and you pay us nothing.
More questions
How much does a French drain cost?
Published ranges run about $10 to $35 per linear foot for a shallow yard drain, $30 to $90 for a deep exterior footing drain, and $40 to $100 for an interior basement system, which commonly totals $5,000 to $18,000. Depth and access drive the number far more than length. Rock, clay, roots and hand-digging in tight spaces all push toward the top of the range.
What is the difference between a French drain and a curtain drain?
They are built similarly. A curtain drain is positioned to intercept water traveling toward your property from uphill, cutting it off before it arrives. A French drain more generally collects water that has already reached the area you want to dry out. If the water is coming from higher ground, intercepting it upslope is usually cheaper and more effective than collecting it after it has spread out.
Will a French drain fix my wet basement?
It depends on where the water is entering. Surface water running against the foundation is often solved by grading and downspout work at modest cost. Water under hydrostatic pressure through the floor or the wall joint usually needs an interior perimeter system with a sump. Diagnosis first is what separates a $500 fix from a $12,000 one, and both get quoted for the same symptom.
How long does a French drain last?
A properly built system with rigid perforated pipe, washed stone and a full filter-fabric envelope can work for decades. Ones that fail early almost always failed on details: no fabric so fines blinded the aggregate, inconsistent fall so silt collected in low spots, or crushed flexible pipe. The failure is gradual and invisible, which is why the specification matters so much at the outset.
Can I install a French drain myself?
Physically, on a short shallow run, yes. The parts that go wrong for DIY installs are establishing a consistent fall over distance, confirming a lawful discharge point, and getting the fabric and aggregate detail right. It is also worth remembering that utility strikes are a genuine risk; call for locates regardless of who does the digging.
Where is the water allowed to discharge?
That is a local question and worth answering before design, not after. Many jurisdictions prohibit discharging concentrated surface water onto adjoining property, and some restrict connections to storm sewers. A gravity outfall to a lower point on your own land is the simplest lawful answer where the topography allows it.
Do I need a sump pump?
Only if the site does not fall enough for gravity discharge, or if you are collecting below the level of any available outfall, which is typical for interior basement systems. A pump introduces a power dependency exactly when you need it most, during a storm, so if one is specified it is worth discussing battery backup at the same time.
Why did my existing drain stop working?
The common causes are silting from missing or failed filter fabric, crushing of flexible pipe under vehicle load or settlement, root intrusion at joints, and a blocked or buried outfall. A camera survey costs far less than replacement and frequently finds a localised blockage or a single crushed section rather than a system that needs redoing.