Basement Waterproofing Cost Calculator for Des Moines, IA
Sizing up a drain along the walls, a new sump pump or a crack that seeps in a Des Moines, IA basement? Four multiple-choice questions turn your answers into a rough budget based on 2026 national rates. You stay anonymous, and the output is a budgeting aid to compare with a contractor's written estimate later, not a substitute.
Before You Start
The method is simple arithmetic. Floor size becomes an approximate length of foundation wall, and only the share of that wall you say takes on water gets priced, at the per-foot rate for an interior perimeter drain. A pump and crack injection are added when you pick them. Every rate comes from Fixr's 2026 national figures below.
| Cost row | Figure | Source (year) |
|---|---|---|
| Typical basement waterproofing project | about $3,000 to $10,000 (average about $5,000) | Fixr national (2026) |
| Interior perimeter drain, per linear foot | $40 to $120 | Fixr national (2026) |
| Sump pump installation | $600 to $2,500 | Fixr national (2026) |
| Epoxy crack injection, per crack | $250 to $1,000 | Fixr national (2026) |
| Waterproof paint or sealant, per sq ft | $1 to $8 | Fixr national (2026) |
The drain, pump and crack rows drive the math; the whole-project and sealant rows are there as a yardstick. No Des Moines or Iowa cost source was found, so all of these are national. Locally, the age of the house, block versus poured walls, how easy the basement is to reach, how much of it needs work and whether plumbing is involved can all move a real price.
Some work is deliberately left out. Exterior excavation, wall bracing and structural repair are not modeled, and neither are egress windows. Backwater valves, ejectors, sewer lines, sump tie-ins and any other drain connection are plumbing jobs priced by a state-licensed plumber, so they stay out too; the City of Des Moines' program for some of that work at City addresses is described in the Iowa rules guide. A new circuit or outlet for a pump is electrical work and isn't counted. Permits come from the Permit and Development Center in Des Moines or from your town's own office, which set their own charges, so none appear here.
What the Result Means
Use the range to start a conversation, not to settle a price. To find out what your own basement would take, use the request form; one independent contractor near Des Moines then gets in touch, looks at the basement if you agree and writes down its own scope and price. Before you sign anything, look up its Iowa registration yourself with DIAL at 515-242-5871. Want to know what pushes a total up or down? The basement cost guide walks through it.