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Exterior Waterproofing in Lansdowne, MD — Stop Water Before It Reaches the Wall

Exterior membrane systems, footing drains, and corrected grading tackle Lansdowne, MD water intrusion at the source, before it ever reaches the interior wall.

Licensed Exterior Waterproofing service in Lansdowne, MD - SGP Waterproofing
Why Choose Us

Four Reasons Our Exterior Waterproofing Clients Don't Call Anyone Else

Exterior work only pays off if the membrane, footing drain, and grading are all addressed together — fixing one without the others often leaves the underlying pressure problem unresolved. We scope the full picture before recommending excavation.

1

Licensed Excavation & Waterproofing Crews

Exterior work involves excavation near the foundation, and every crew member is trained and insured for that specific scope.

2

Local Equipment Staging

Excavation equipment and membrane materials are staged locally so an exterior project doesn't wait on out-of-town logistics.

3

Flat-Rate Excavation Pricing

Pricing is quoted per linear foot of foundation wall being treated, based on an on-site measurement, not a phone estimate.

4

Dimpled Membrane & Footing Drain Systems

We install dimpled membrane rated for below-grade use, paired with a footing drain that ties into your existing or new drainage system.

Professional Exterior Waterproofing technician working in Lansdowne, MD
What We Do

The Full Scope of Our Lansdowne, MD Exterior Waterproofing Work

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

Exterior

Foundation Excavation & Membrane Installation

We excavate to the footing, apply a dimpled waterproof membrane directly to the foundation wall, and backfill with proper drainage material.

Exterior

Footing Drain (French Drain) Installation

We slope footing drains correctly during installation, since a flat or reverse-sloped drain simply won't move water.

Exterior

Exterior Grading Correction

Soil that slopes toward the foundation instead of away from it is one of the most common Lansdowne, MD water intrusion causes, and it's often the cheapest fix on this list.

Exterior

Window Well Excavation & Drainage

We also inspect and reseal the window frame itself while the well is open.

Exterior

Downspout & Gutter Extension

Downspouts discharging within a few feet of the foundation send roof water directly toward the problem — we extend them well clear of the wall.

24/7 Emergency Exterior Waterproofing experts in Lansdowne, MD
How It Works

Our Four-Step Exterior Waterproofing Dispatch Process

01

Call & Exterior Symptom Review

Photos of the exterior foundation area help us plan equipment and access before the visit.

02

On-Site Excavation Assessment

A technician walks the exterior perimeter, checks grading slope, and identifies where excavation would be needed for a membrane or footing drain fix.

03

Written Excavation Quote

You'll see linear footage, membrane type, and footing drain scope broken out with pricing before any digging starts.

04

Excavation, Membrane & Backfill

We restore grading and any disturbed landscaping as the final step before calling the job complete.

Customer Reviews

Real Exterior Waterproofing Reviews From Lansdowne, MD Property Owners

Top rated local Exterior Waterproofing specialists in Lansdowne, MD
★★★★★

"Interior fixes hadn't worked for us — turned out the real problem was grading pushing water straight at the foundation. Exterior correction solved it."

— Lansdowne Homeowner

★★★★★

"Excavation crew was careful with our landscaping and put everything back close to how it looked before."

— Lansdowne Customer

★★★★★

"Appreciated that they called in utility locates before digging near our gas line."

— Lansdowne Homeowner

★★★★★

"Fast turnaround given how much digging was involved."

— Lansdowne Customer

FAQ

Frequently Asked Questions About Exterior Waterproofing

What's the difference between interior and exterior waterproofing?

Interior systems manage water after it enters; exterior systems stop water from reaching the wall in the first place, which is more invasive but often more permanent.

Will excavation damage my landscaping?

We discuss landscaping impact during the estimate so there are no surprises.

How deep do you need to excavate?

Excavation typically goes down to the footing, which varies by home but is often four to eight feet depending on foundation depth.

Is exterior waterproofing more expensive than interior?

We'll walk through both options and their trade-offs so you can make an informed choice.

Can you fix grading without a full exterior membrane project?

Yes — grading correction and downspout extension are often standalone fixes that resolve a surprising number of Lansdowne, MD water intrusion issues on their own.

How long does exterior waterproofing take?

A typical residential wall section with membrane and footing drain work takes a few days depending on access and weather conditions.

Service Coverage

Proudly Providing Exterior Waterproofing Throughout Lansdowne and Lansdowne, MD

Exterior jobs depend on access and weather — call +1-866-476-1348 and we'll confirm scheduling for your specific Lansdowne property.

Reliable Exterior Waterproofing contractor in Lansdowne, MD by SGP Waterproofing
Affordable Exterior Waterproofing solutions in Lansdowne, MD
Trusted Exterior Waterproofing service in Lansdowne, MD - SGP Waterproofing

Zip codes we serve in Lansdowne, MD: 21227

Get Exterior Waterproofing Handled Before It Gets Worse

One call gets you a licensed specialist, a written quote, and a same-day time window.

Call +1-866-476-1348

Our Services in Lansdowne, MD

Lansdowne is a census-designated place in southern Baltimore County, Maryland, United States, located just south of Baltimore. As of the 2010 census, it had a population of 8,409. At the 2000 census and earlier, the area was delineated as part of the Lansdowne-Baltimore Highlands CDP.

Zip Codes in Lansdowne, MD that we also serve: 21227

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