● Open 24/7 for emergency calls

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.

24/7
Emergency Dispatch
Licensed Exterior Waterproofing service in Lansdowne, MD - SGP Waterproofing
Why Choose Us

Why Lansdowne, MD Property Owners Choose SGP Waterproofing for Exterior Waterproofing

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

Weather-dependent scheduling means we plan exterior jobs around Lansdowne, MD's rainy season windows when possible.

3

Flat-Rate Excavation Pricing

Landscaping restoration is included in the scope, not billed as a separate surprise line item.

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

Comprehensive Exterior Waterproofing Solutions in Lansdowne, MD

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

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

Window wells collecting water get excavated, fitted with a gravel bed, and tied into the exterior drain system so they stop acting as a funnel toward the foundation.

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

We explain what's included in landscaping restoration so there's no confusion after backfill.

04

Excavation, Membrane & Backfill

Excavation, membrane installation, and backfill for a typical residential wall section usually take a few days depending on access and weather.

Customer Reviews

What Lansdowne, MD Customers Say About Our Exterior Waterproofing Work

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

★★★★★

"They found our downspouts were dumping water two feet from the foundation. Extended them and regraded, and that alone made a noticeable difference."

— Lansdowne Customer

★★★★★

"Window well kept flooding every storm. They excavated, added drainage, and resealed the window frame while they were at it."

— Lansdowne Homeowner

★★★★★

"Fast turnaround given how much digging was involved."

— Lansdowne Customer

FAQ

Exterior Waterproofing Questions We Hear Every Week

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?▼

Generally yes, since it involves excavation, but it addresses the source of water intrusion rather than managing symptoms after entry.

Can you fix grading without a full exterior membrane project?▼

We'll recommend starting there if the inspection suggests surface water is the primary cause.

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

Exterior Waterproofing Coverage Across Lansdowne and Surrounding Lansdowne, MD Communities

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

Lansdowne, MD's Exterior 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 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

Cities Close To Lansdowne, MD That We Also Serve


Exterior Waterproofing Express #1
★ 4.9 (120+ Reviews)
Dispatch Center, MD
Call +1-866-476-1348
Exterior Waterproofing Express #2
★ 4.9 (120+ Reviews)
Dispatch Center, MD
Call +1-866-476-1348
Exterior Waterproofing Express #3
★ 4.9 (120+ Reviews)
Dispatch Center, MD
Call +1-866-476-1348
Exterior Waterproofing Express #4
★ 4.9 (120+ Reviews)
Dispatch Center, MD
Call +1-866-476-1348
Exterior Waterproofing Express #5
★ 4.9 (120+ Reviews)
Dispatch Center, MD
Call +1-866-476-1348
Exterior Waterproofing Express #6
★ 4.9 (120+ Reviews)
Dispatch Center, MD
Call +1-866-476-1348
Emergency Exterior Waterproofing available now in Lansdowne, MD 📞 Call +1-866-476-1348
🟢 Techs On Duty in Lansdowne, MD Call +1-866-476-1348