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Lanham, MD's Basement Waterproofing Specialists — Dry Basements, Written Warranty

Interior drain tile, sump basins, and vapor barrier wall systems installed by technicians who've done this hundreds of times in Lanham, MD basements.

Licensed Basement Waterproofing service in Lanham, MD - SGP Waterproofing
Why Choose Us

Why Lanham, MD Property Owners Choose SGP Waterproofing for Basement Waterproofing

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.

1

Licensed & Insured Crews

Every technician carries full state licensing and liability coverage before they ever step into your basement.

2

Same-Day Local Dispatch

Most inspection requests get a same-day or next-day appointment, not a two-week wait.

3

Flat-Rate Pricing, No Surprises

No hourly billing and no change orders once your basement floor is already open.

4

Moisture-Mapping Equipment

Thermal imaging helps us confirm whether a stain is active moisture or an old, already-fixed leak.

Professional Basement Waterproofing technician working in Lanham, MD
What We Do

The Full Scope of Our Lanham, MD Basement Waterproofing Work

Every Lanham, MD Basement Waterproofing job starts with an inspection, not a generic package — here's what that typically includes.

Basement

Interior Drain Tile

The core fix for most Lanham, MD basements: a perimeter drain cut into the slab edge, tied to a sump basin, that intercepts water before it reaches the floor.

Basement

Sump Pump & Basin Installation

Battery backup is available for any sump system, so a power outage during a storm doesn't undo the whole fix.

Basement

Wall Crack & Cove Joint Sealing

The cove joint where the floor meets the foundation wall is one of the most common Lanham, MD leak points, and we seal it as part of every interior system.

Basement

Vapor Barrier Wall Membrane

A dimpled plastic membrane behind any finished basement wall channels residual moisture down to the drain tile instead of trapping it behind drywall.

Basement

Window Well Drainage

Poor window well drainage is one of the most overlooked Lanham, MD basement leak sources, and it's often the cheapest fix on the list.

24/7 Emergency Basement Waterproofing experts in Lanham, MD
How It Works

Our Four-Step Basement Waterproofing Dispatch Process

01

Call & Symptom Walkthrough

A quick phone conversation lets us bring the right equipment on the first visit instead of a second trip.

02

On-Site Moisture Inspection

A technician walks the basement with a moisture meter, checking walls, floor, and cove joints to trace the water back to its actual source.

03

Written, Itemized Quote

We explain the reasoning behind the recommended system so you know exactly what you're paying for and why.

04

Installation & Warranty Walkthrough

Most residential basement jobs finish in one to three days, and we test the sump pump under load before we leave.

Customer Reviews

Hear From Lanham, MD Customers We've Already Helped

Top rated local Basement Waterproofing specialists in Lanham, MD
★★★★★

"Our finished basement started smelling musty and we finally found a wet spot behind the drywall. They cut open the cove joint, ran drain tile, and it's been dry for over a year."

— Lanham Homeowner

★★★★★

"Water came in around our window well every time it rained hard. They regraded it and added a drain line — problem solved."

— Lanham Customer

★★★★★

"Appreciated that the estimate matched the final invoice exactly — no surprise add-ons once the floor was already open."

— Lanham Homeowner

★★★★★

"Installed a battery backup sump pump for us right before a big storm season — glad we did it when we did."

— Lanham Customer

FAQ

Basement Waterproofing Questions We Hear Every Week

How much does interior drain tile installation cost?

Every Lanham, MD quote is itemized in writing so you can see exactly what drives the total.

Will you cut into my basement floor?

Yes — interior drain tile requires cutting a channel along the slab edge, which we patch with concrete once the system is installed.

How long does basement waterproofing take?

Most residential interior drain tile and sump installations finish in one to three days depending on basement size.

Do I need a sump pump if I'm just sealing a crack?

Not always — an isolated, non-leaking crack can sometimes be handled with injection alone.

Is basement waterproofing covered by insurance?

We provide photos and moisture readings that many Lanham, MD homeowners have used to support a claim.

Do you offer a warranty on basement waterproofing work?

Yes, every interior drain tile and sump installation comes with a written warranty, explained in full before you approve the quote.

Service Coverage

Proudly Providing Basement Waterproofing Throughout Lanham and Lanham, MD

We install interior drain tile and sump systems throughout Lanham and the surrounding Lanham, MD service area, including the zip codes listed below.

Reliable Basement Waterproofing contractor in Lanham, MD by SGP Waterproofing
Affordable Basement Waterproofing solutions in Lanham, MD
Trusted Basement Waterproofing service in Lanham, MD - SGP Waterproofing

Zip codes we serve in Lanham, MD: 20706

Lanham, MD's Basement Waterproofing Crew Is One Call Away

Call now for a free inspection and a flat-rate quote before anything gets worse.

Call +1-866-476-1348

Our Services in Lanham, MD

Lanham is an unincorporated community and census-designated place in Prince George's County, Maryland. As of the 2020 United States Census it had a population of 11,282. The New Carrollton station (the terminus of the Washington Metro's Orange Line) as well as an Amtrak station are across the Capital Beltway in New Carrollton, Maryland. Doctors Community Hospital is located in Lanham.

Zip Codes in Lanham, MD that we also serve: 20706

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