# Sump pump vs French drain: which does my KC home need?

> Premier Gutters KC — NDS Certified Professional Drainage Contractor, Kansas City metro. (816) 469-9563 · https://premiergutterskc.com/answers/sump-pump-vs-french-drain-kansas-city/

## Short answer

They solve different halves of the same problem. A French drain keeps water from reaching or building up around your foundation — it's prevention, outside. A sump pump ejects water that's already made it under your basement floor — it's the last line of defense, inside. Many KC homes on clay need exterior drainage first; a sump pump alone is treating the symptom while the cause keeps working on your foundation.

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What each one actually does:

Exterior French drain / buried downspouts: intercept surface and shallow groundwater before it loads up the clay around your basement. Water that never reaches the foundation never has to be pumped. Typical cost: $300–$700 per downspout burial, $1,500–$3,800 for a yard French drain.
Sump pump + interior drain tile: collects water from under the slab into a pit and pumps it out. Essential in homes with high water tables or finished basements — but it runs on electricity, wears out, and does nothing to stop the water from arriving.

The honest decision framework for KC homes:

Basement gets damp only after hard rain? Start outside. Fix downspouts and grading first — it's the cheapest fix and very often the whole answer on KC clay.
Water table is genuinely high, or water appears even in dry weather? You need the sump system — and exterior drainage still reduces how often it runs.
Finished basement you can't afford to gamble on? Do both: exterior interception plus a sump with battery backup. The pump becomes insurance instead of the only defense.

Watch out for one-tool salesmen. Basement waterproofing companies sell interior systems ($8,000–$15,000); landscapers sell drains. We install exterior drainage and replace sump pumps ($1,500–$2,800 cast-iron), so we'll tell you which combination your water problem actually calls for — free walk, written quote. Start here: French drains & drainage or French drain vs foundation repair.

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Free in-person drainage walk, written line-itemed quote: (816) 469-9563 · https://premiergutterskc.com/services/french-drains/