Interior drain tile, sump basins, and vapor barrier wall systems installed by technicians who've done this hundreds of times in Gaithersburg, MD basements.
Basement waterproofing mistakes usually come down to one thing: fixing the symptom instead of the source. A contractor who paints over a wet wall without checking cove joint condition or exterior grading is setting you up for the same call again in a year or two.
Every technician carries full state licensing and liability coverage before they ever step into your basement.
Our Gaithersburg, MD crews are staffed locally, so a wet basement call doesn't sit in a national queue for a week.
No hourly billing and no change orders once your basement floor is already open.
We use pin-type moisture meters and a flashlight-and-crowbar inspection to trace water back to its real entry point.
Every Gaithersburg, MD Basement Waterproofing job starts with an inspection, not a generic package — here's what that typically includes.
We route drain tile beneath the existing slab line so flooring disruption stays minimal during installation.
Battery backup is available for any sump system, so a power outage during a storm doesn't undo the whole fix.
The cove joint where the floor meets the foundation wall is one of the most common Gaithersburg, MD leak points, and we seal it as part of every interior system.
We install membrane on masonry walls before any insulation or framing goes up, so moisture never gets a chance to reach finished materials.
Poor window well drainage is one of the most overlooked Gaithersburg, MD basement leak sources, and it's often the cheapest fix on the list.
A quick phone conversation lets us bring the right equipment on the first visit instead of a second trip.
We also check exterior grading and downspouts, since a lot of basement leaks start outside, not inside.
We explain the reasoning behind the recommended system so you know exactly what you're paying for and why.
Most residential basement jobs finish in one to three days, and we test the sump pump under load before we leave.
"We'd patched a basement crack twice ourselves before calling. The interior drain tile system actually fixed it instead of just hiding it again."
— Gaithersburg Homeowner
"Sump basin was undersized from the last owner's DIY job. They resized it and we haven't had a drop since."
— Gaithersburg Customer
"They walked us through exactly why the water was coming in before quoting anything, which no one else had bothered to do."
— Gaithersburg Homeowner
"Basement had been damp for years. Drain tile and a new sump system fixed it in three days."
— Gaithersburg Customer
Cost depends on linear footage, sump basin size, and whether cove joint sealing is included — we won't give a number without an in-person inspection.
Yes — interior drain tile requires cutting a channel along the slab edge, which we patch with concrete once the system is installed.
Most residential interior drain tile and sump installations finish in one to three days depending on basement size.
If the crack is actively weeping or part of a larger drainage issue, we'll recommend a full system instead of a spot fix.
We provide photos and moisture readings that many Gaithersburg, MD homeowners have used to support a claim.
Warranty terms are often transferable if you sell the property later.
If your Gaithersburg address falls just outside our standard coverage zone, call anyway — we often still make the trip for basement emergencies.
Zip codes we serve in Gaithersburg, MD: 20899 20878 20879 20877 20884 20885 20898 20882
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.
