Basement Waterproofing Cost Calculator for Minneapolis, MN
Thinking about an interior drain, a new sump pump or sealing a leaky crack in a Minneapolis, MN basement? Answer four questions and the calculator turns them into a rough dollar range from published national rates. It asks for no name or contact details, and the number is a planning aid to set beside a contractor's written estimate later.
How the Answer Is Worked Out
Before you start: the size of the basement floor stands in for the length of foundation wall around it. Only the part of the wall you mark as leaking is priced, at the interior perimeter drain rate per foot; a pump or crack injection gets added if you ask for one. The rates come from Fixr's 2026 national figures, listed here.
| 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 first and last rows are there for context and stay out of the math. No Minnesota cost source was used, so every figure is national and the result is a sketch rather than a local price. Exterior excavation, wall bracing and structural repair are not modeled. Backwater valves, sump tie-ins to a drain or sewer, clear-water disconnections and lateral or sewer work are plumbing jobs that a licensed plumbing contractor prices, so they are left out as well. In the City of Minneapolis, the rainleader disconnection permit and the City's service-line repayment option set their own terms; ask 311.
What the Result Means
Treat the range as a starting point for a conversation, not a price. To learn what your basement would actually need, send the short request form and one independent contractor serving the Minneapolis area will get in touch, look at the walls if you agree and put its own scope and price in writing. Meanwhile, the cost guide explains what pushes a job up or down, and the Minnesota rules page covers DLI licenses and written contracts.