Interior drainage, exterior grading, crack injection, or a combination — we scope what your Andover, MN basement actually needs.

Chronic wet basements are rarely caused by just one thing, which is exactly why single-service contractors so often leave the problem half-solved. Our diagnostic process checks grading, drainage, and crack condition together before recommending a fix.
We check walls, floor, grading, gutters, and window wells before recommending a repair, not just the spot where you noticed water.
Wet basement calls get scheduled quickly, especially when there's active water or a musty odor that's gotten worse recently.
We break down each component of the fix so you understand what you're paying for and why it's included.
That range means the diagnosis drives the fix, not which single service a narrower contractor happens to offer.

Every Andover, MN Wet Basement Repair job starts with an inspection, not a generic package — here's what that typically includes.
We use moisture meters, visual inspection, and a review of exterior grading and gutters to identify every contributing water source, not just the obvious one.
This is the most common fix for Andover, MN basements with a consistently high water table.
Active wall cracks get epoxy or polyurethane injection as part of a comprehensive wet basement repair, sealed and classified before we move to other work.
A surprising number of Andover, MN wet basements trace back to grading that slopes toward the foundation or downspouts discharging too close to the wall.
We coordinate with mold remediation specialists when visible growth is already present, since that's outside our own scope.

We ask how long the basement has been wet, whether it's constant or storm-related, and what you've already tried.
We don't stop at the first obvious cause — chronic wet basements often have more than one contributing factor.
You'll get a written scope covering every component of the recommended fix, whether that's one service or several combined.
We're available to reassess if conditions change after a major storm, since Andover, MN weather can be unpredictable.

"We'd had three different contractors guess at fixes over the years and none of them worked. These guys actually diagnosed the real combination of causes."
— Andover Homeowner
"Appreciated getting a written diagnosis explaining exactly what they found before any repair work started."
— Andover Customer
"They coordinated with our mold remediation company since there was already some growth from years of moisture."
— Andover Homeowner
"Didn't try to sell us the most expensive fix — recommended grading correction first since that was the actual primary cause."
— Andover Customer
Previous repairs may have addressed only one contributing factor while others were left unresolved — our diagnostic process checks for the full picture.
We check interior walls and floor, exterior grading, gutters, downspouts, and window wells using moisture meters and visual inspection.
Yes, and it often does — grading, a failed crack, and inadequate drainage frequently combine to create chronic moisture problems.
We focus on moisture control, and we coordinate with mold remediation specialists for visible growth, which falls outside our direct scope.
Cost depends entirely on which combination of repairs your basement needs — we won't estimate a number until the diagnostic inspection is complete.
Timeline depends on scope — a single-cause fix might take a day, while a combination of drainage, grading, and crack repair can take several days.
We diagnose and repair wet basements throughout Andover and the surrounding Andover, MN service area, including the zip codes listed below.



Zip codes we serve in Andover, MN: 55304
Call now for a free inspection and a flat-rate quote before anything gets worse.
Call +1-866-476-1348© SGP Waterproofing. All rights reserved.