Interior drainage, exterior grading, crack injection, or a combination — we scope what your Herndon, VA 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.
Whatever combination of repairs your basement needs, the price is quoted in writing before any work begins.
That range means the diagnosis drives the fix, not which single service a narrower contractor happens to offer.

Every Herndon, VA Wet Basement Repair job starts with an inspection, not a generic package — here's what that typically includes.
A written diagnostic summary explains what we found and why we're recommending a specific repair combination.
When groundwater is the primary source, interior drain tile tied to a properly sized sump basin intercepts it before it reaches your floor.
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.
We correct grading and extend downspouts as part of the full repair scope where the inspection points that direction.
Chronic basement moisture creates conditions for mold growth, and part of our repair scope is getting humidity down to a level that doesn't support it.

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 Herndon, VA 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."
— Herndon Homeowner
"Appreciated getting a written diagnosis explaining exactly what they found before any repair work started."
— Herndon Customer
"They coordinated with our mold remediation company since there was already some growth from years of moisture."
— Herndon Homeowner
"Didn't try to sell us the most expensive fix — recommended grading correction first since that was the actual primary cause."
— Herndon 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.
Getting humidity and water intrusion under control is a necessary first step before mold remediation can hold long-term.
Cost depends entirely on which combination of repairs your basement needs — we won't estimate a number until the diagnostic inspection is complete.
We give you a realistic timeline in the written repair plan based on your specific diagnosis.
We diagnose and repair wet basements throughout Herndon and the surrounding Herndon, VA service area, including the zip codes listed below.



Zip codes we serve in Herndon, VA: 20170 20172 22095 20171
One call gets you a licensed specialist, a written quote, and a same-day time window.
Call +1-866-476-1348© SGP Waterproofing. All rights reserved.