Foundation Drainage Costs & Excavation Guide — Edwardsville, IL
Direct answer: Foundation drainage projects in Edwardsville typically cost $3,500 to $12,000, with the range driven mainly by linear footage of perimeter drain, excavation depth, and whether a sump pump or new outlet is included. Every project also requires a JULIE utility locate at least 48 hours before digging.
Getting an accurate cost picture for foundation drainage means understanding what actually drives the price up or down. Scope, soil, and access are the three biggest variables in the Edwardsville area, and each affects both the excavation timeline and the crew hours required.
JULIE Locate Required
State law requires a utility locate at least 48 hours before any excavation — no exceptions for residential drainage work.
Municipal Grading Review
Changes to slope or drainage flow that could affect a neighboring lot may require sign-off under city code.
Soil-Driven Cost Swings
Heavy clay excavation and hand-digging around existing utilities both add labor hours over open, sandy-soil digs.
Cost by Project Type
| Project Type | Cost Range | Typical Timeline |
|---|---|---|
| Foundation perimeter drain (partial run) | $3,500 – $6,000 | 2 – 3 days |
| Full perimeter drain + sump pump | $6,000 – $9,500 | 3 – 5 days |
| Full drain system + exterior outlet + grading | $8,500 – $12,000 | 5 – 8 days |
Before Any Excavation Starts
Illinois requires a JULIE utility locate request at least 48 hours ahead of digging — a licensed contractor typically files this as part of scheduling your project. Depending on the scope, work that changes slope or drainage flow near a property line may also need to comply with Edwardsville's municipal grading rules.