If water is coming into your basement, the cost question comes right after "how do I stop it." Here are typical ranges for the main fixes, and the local factors that move them.
These are typical estimates for planning, not quotes. They reflect general published national and Indiana cost guides as of 2026 and are not a price from any contractor. You'll get an actual written figure from the referred Monroe County contractor after an inspection. Call (317) 798-0634 to request one.
Typical Ranges by System Type
| Fix | Typical range (estimate) |
|---|---|
| Interior perimeter drain tile + sump, typical basement | about $6,000 to $15,000 |
| Interior drain on one or two problem walls | about $2,500 to $7,000 |
| Exterior excavation + membrane + footing drain, per wall | about $5,000 to $15,000+ |
| Full exterior waterproofing | about $12,000 to $30,000+ |
| New sump pump with basin | about $1,000 to $2,500 |
| Battery backup pump added | about $800 to $2,000 |
| Crack injection, per crack | about $400 to $1,000 |
| Downspout extensions / buried lines | about $150 to $2,500 |
| Regrading around the house | about $1,000 to $5,000 |
| Basement dehumidifier, installed | about $1,500 to $3,000 |
Interior systems are often discussed in per-linear-foot terms, roughly $40 to $100 per foot depending on the system and region.
Why Bloomington Jobs Vary
Rock. Shallow limestone is a real wildcard for exterior work. Digging through rock is slower and may require different equipment. Ask how a contractor prices rock if they hit it.
Foundation type. Block walls need weep holes; limestone and rubble walls may need membrane systems and mortar repair. Poured walls with a single crack may only need injection.
Access. Decks, patios, porches, landscaping and tight side yards on older lots near campus make exterior work harder. Inside, finished walls add removal and rebuilding cost.
How much perimeter. Treating only the wet walls costs less up front; a full perimeter covers future leaks. On a hillside lot, the uphill side is often the priority.
Discharge route. A long run to daylight on a slope, or a buried line under a driveway, adds cost.
Add-ons. Battery backup, alarms, wall vapor barriers and dehumidifiers increase the total but often make sense.
Ballpark Examples (Illustrative Only)
These hypothetical examples show how pieces combine. They are not real jobs or quotes.
- East-side block ranch, two leaking walls: interior drain along about 60 feet plus a new sump and battery backup. Likely in the lower-middle of the interior range.
- Hillside walkout, uphill wall wet: exterior excavation of one wall with membrane and footing drain run to daylight, plus extended downspouts. Rock could push it up.
- Older limestone foundation near downtown: full interior perimeter with wall membrane, mortar repair, sump and dehumidifier. Upper part of the interior range.
Ways to Control Cost
- Fix gutters, downspouts and grading first. Sometimes that alone solves minor seepage. See yard drainage.
- Ask for options: problem walls only vs. full perimeter, with and without backup.
- Clear the work area yourself to reduce labor.
- Compare written proposals by scope, not price alone.
Financing, Timing and Warranties
Some contractors offer financing; ask them directly, since we don't arrange it. Most interior jobs take one to three days. Warranty terms, annual service fees and transferability vary by contractor, so read the document. See our main waterproofing page for questions to ask.
Cost Details by Service
Each service page has its own cost section with the factors that drive price:
- Crawl space waterproofing
- Basement mold dehumidifiers
- Bowing basement walls
- Yard drainage french drains
- Foundation crack repair
- Sump pump installation
- Wet basement leak repair
- Foundation repair
- Egress windows and window wells
- Sump pump repair and battery backup
All figures are general typical ranges, not quotes. Prices vary; call (317) 798-0634 for a free quote.
Frequently Asked Questions
Get a real price for your basement.
Call (317) 798-0634 or request a free inspection.