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

We diagnose the actual water source before we quote anything — no guessing, no upsell, just a plan sized to your basement.

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

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

We've seen enough Severn, MD basements to know that a wet spot in one corner rarely tells the whole story. Before we recommend drain tile or a sump upgrade, we trace the water back to where it's actually entering, not just where you noticed it.

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

Our Severn, MD crews are staffed locally, so a wet basement call doesn't sit in a national queue for a week.

3

Flat-Rate Pricing, No Surprises

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

4

Moisture-Mapping Equipment

We use pin-type moisture meters and a flashlight-and-crowbar inspection to trace water back to its real entry point.

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

What Our Basement Waterproofing Service Actually Covers

We scope every Basement Waterproofing job in person before quoting it, since two properties with the same symptom rarely need the same fix.

Basement

Interior Drain Tile

The core fix for most Severn, 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

Every drain tile system needs a properly sized sump pump — we calculate basin size and pump horsepower from your square footage and local water table depth.

Basement

Wall Crack & Cove Joint Sealing

Vertical wall cracks get epoxy or polyurethane injection depending on whether they're still actively weeping.

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 Severn, MD basement leak sources, and it's often the cheapest fix on the list.

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

Our Four-Step Basement Waterproofing Dispatch Process

01

Call & Symptom Walkthrough

You describe what you're seeing — a wet spot, a musty smell, standing water — and we get a rough read on urgency before dispatching anyone.

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

You'll see drain tile footage, sump specs, and labor broken out separately, not one vague lump-sum number.

04

Installation & Warranty Walkthrough

You'll get warranty paperwork and a walkthrough of how the system works so you know what to expect going forward.

Customer Reviews

What Severn, MD Customers Say About Our Basement Waterproofing Work

Top rated local Basement Waterproofing specialists in Severn, 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."

— Severn Homeowner

★★★★★

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

— Severn Customer

★★★★★

"They walked us through exactly why the water was coming in before quoting anything, which no one else had bothered to do."

— Severn Homeowner

★★★★★

"Basement had been damp for years. Drain tile and a new sump system fixed it in three days."

— Severn Customer

FAQ

Basement Waterproofing Questions We Hear Every Week

How much does interior drain tile installation cost?

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.

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?

Larger basements or those needing extensive crack repair can take a bit longer — we'll give you a realistic timeline in the written quote.

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 Severn, 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 Severn and Severn, MD

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

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

Zip codes we serve in Severn, MD: 21144 21077 21076

Don't Wait On Basement Waterproofing — Call Now

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

Call +1-866-476-1348

Our Services in Severn, MD

Severn is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. According to the 2020 U.S. census, the population of Severn is 57,118, a 22.6% increase from 44,231 in 2010. The zip code is 21144.

Zip Codes in Severn, MD that we also serve: 21144 21077 21076

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