Cost Follows the Correct Repair — Not the Other Way Around
A wet basement can be solved for a few hundred dollars or for several thousand, and the difference is almost never the company — it’s the cause of the water. That’s why we diagnose first. A free, honest evaluation tells us whether the answer is grading, drain tile, a sump system, or exterior excavation, and the price simply follows the repair your home actually needs.
The Things That Set the Price
The source of the water
Surface water from grading or downspouts is the least expensive to solve. Hydrostatic pressure beneath the slab takes more — drain tile, a sump, or exterior work.
Size & access
How many linear feet of wall are affected, and how easy it is to reach — finished walls, tight access, or buried obstacles add labor.
Foundation type
Poured, block, or stone foundations each call for different methods and materials.
Interior vs. exterior
An interior drain-tile system and an exterior excavation solve different problems and carry very different costs.
Finish & restoration
Replacing concrete, restoring landscaping, or protecting a finished basement adds to the total.
Backup & protection
A battery backup or extra protection for a finished basement is optional but worth pricing in.
The Cheapest “System” Is Rarely the Cheapest Solution
The lasting-value approach
Diagnose the cause, fix the source, and right-size the repair. Sometimes that’s a few hundred dollars of grading; sometimes a full system. Either way it actually stops the water — so you pay once.
The expensive mistake
Buying the same interior system every company quotes, whether or not it addresses the cause. If the water comes over the top from grading, that system runs forever and the basement still gets wet.
Ballpark Ranges — Your Written Estimate Is Exact
As a rough guide in the Quad Cities, minor grading or downspout corrections run a few hundred dollars, while drain tile, sump systems, and drainage corrections typically run into the thousands, and full exterior excavation more. Every job gets a written estimate after a free diagnosis, so the number reflects the repair your home actually needs — not a one-size price.
What Recent Quad Cities Jobs Actually Cost
Real, anonymized cost examples by repair type are added here from Behncke’s project history so you can see honest numbers for work like yours.
Frequently Asked Questions
Why won’t you give a price over the phone?
Because a price without a diagnosis is a guess. The same symptom can mean a few hundred dollars or several thousand. We look first, then put an honest written number in your hands — usually within one business day.
Is interior or exterior waterproofing more expensive?
Exterior excavation is typically the larger project, but it’s the right answer for some homes. A cheaper option isn’t better if it doesn’t fix the cause — that’s the whole point of diagnosing first.
Does homeowner’s insurance cover a wet basement?
It depends on the cause and your policy — gradual seepage is often excluded while sudden events may be covered. We’ll document the cause clearly so you can ask your insurer the right questions.
Do you offer financing?
Yes — financing is available through independent third-party partners, so a larger repair can be spread into manageable payments. Approval and terms are set by the provider.
Is the cheapest bid the best deal?
Only if it fixes the actual problem. A low bid for the wrong repair is the most expensive thing you can buy, because you’ll pay again. Ask any bidder what they think the cause is and why.
Get an Honest, Written Waterproofing Price
We’ll diagnose the cause and give you a written estimate for the repair that actually solves it — usually within one business day. No pressure, no commissioned salespeople.