Yard drainage, explained
Work out what's wrong with your yard before you pay to fix it
Standing water, soggy lawns, runoff and erosion have half a dozen different causes that look identical from the back door. This site helps you tell them apart — then decide what's worth doing.
What are you seeing?
Start from the symptom, not the solution. Every card leads to what that symptom usually means and how to confirm it.
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Yard Drainage Solution Finder
Answer eight questions about where water collects, how long it stays, your slope and soil, and where your downspouts discharge. You'll get the approaches that fit your conditions, what to check next, and the questions worth asking a contractor.
What it won't do: diagnose your yard or design a system. Neither is possible without standing on the property. It narrows the field and tells you what to investigate.
The distinction that decides everything
Nearly every yard drainage decision comes back to one question, and getting it wrong is the most expensive mistake homeowners make.
Water on the surface
You can see it. Rain arrived faster than the ground could absorb, or ran downhill to a low spot and stopped. The ground underneath may drain perfectly well.
Solved by collecting and routing — regrading, a catch basin, a swale, a channel drain.
Water in the soil
The surface dries but the ground stays soft. A screwdriver slides in with no resistance and the hole starts to fill. Water soaked in and has nowhere to go.
Solved by draining from below — a French drain or an interceptor drain.
A French drain installed for surface water collects almost nothing while the puddle stays exactly where it was. It is the single most common way to spend several thousand dollars without fixing anything.
What each fix actually does
French drains
Collects water from saturated soil along a line. Needs fall and an outlet.
Catch basins
Collects surface water at one low point and pipes it away.
Patio & hardscape drainage
Channel drains and edge collection for paved surfaces.
Compare all options
Eight systems, what each collects, costs, and where each fails.
Which system suits your yard?
Two answers eliminate most of the options before you compare a single price.
| Water is… | You have an outlet | No outlet lower down |
|---|---|---|
| On the surface | Catch basin · channel drain | Dry well · rain garden |
| In the soil | French drain · interceptor drain | Pumped system · regrade |
See all eight compared, with costs and weaknesses →
Rough costs, before anyone quotes you
Planning ranges, not quotes — but enough to know whether a number you've been given is in the right territory.
| Work | Planning range |
|---|---|
| Extending or burying downspouts | $100 – $1,200 |
| Regrading a low spot | $500 – $3,000 |
| Catch basin, professionally installed | $600 – $2,000 |
| French drain (yard) | $10 – $35 per linear foot |
| Channel drain retrofit into concrete | $70 – $150 per linear foot |
The cheapest fixes — roof water and grading — resolve a large share of problems and sit at the top of that list for a reason.
Who do you even call for this?
Landscaper, drainage specialist, plumber, or engineer — the trades genuinely overlap, and almost every guide on the subject is published by one of them.
There's a test that cuts through it: ask what they'd measure before quoting. Someone who mentions checking fall with a level, finding your outlet, and looking at your downspouts is diagnosing. Someone who quotes a French drain from a phone description is selling a product.
Drainage in North Carolina
Piedmont red clay drains at a fraction of the rate sandier soils manage, which is why yards across the Triangle and Charlotte hold water long after the rain stops — and why advice written for free-draining soil often disappoints here. Add tropical-system rainfall and the same yard can face both problems in one season.
North Carolina pages are in progress.
Independent guidance, written for you — not for sale. No one pays to change what our pages say or to rank in our recommendations. This site exists to help you understand your own yard well enough to ask better questions.
Every cost figure is a planning range, not a quote. Every recommendation states what it will not fix. Nothing here replaces someone standing on your property — drainage depends on grade, soil, rainfall, layout, utilities and local rules that cannot be assessed remotely.
Not sure where to start?
Eight questions about your yard, and a shortlist of what's worth investigating.
Start the Solution FinderBy Under Your Home Team · Last reviewed 2026-08-09