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Exterior Waterproofing in Lancaster, PA — Stop Water Before It Reaches the Wall

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

Licensed Exterior Waterproofing service in Lancaster, PA - SGP Waterproofing
Why Choose Us

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

A lot of Lancaster, PA exterior waterproofing failures trace back to a footing drain that was installed without proper slope, which means it never actually moved water the way it was supposed to. We verify slope during installation, not just at design.

1

Licensed Excavation & Waterproofing Crews

We call in utility locates before any digging starts, standard on every Lancaster, PA exterior job.

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

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 Lancaster, PA
What We Do

The Full Scope of Our Lancaster, PA Exterior Waterproofing Work

Every Lancaster, PA 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 Lancaster, PA 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 Lancaster, PA
How It Works

From Call to Resolution: How Exterior Waterproofing Works in Lancaster, PA

01

Call & Exterior Symptom Review

We ask about grading, downspout placement, and where interior water is showing up to narrow down the likely exterior cause.

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

What Lancaster, PA Customers Say About Our Exterior Waterproofing Work

Top rated local Exterior Waterproofing specialists in Lancaster, PA
★★★★★

"Membrane and footing drain install took three days but the wall that used to weep every storm has been bone dry since."

— Lancaster Homeowner

★★★★★

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

— Lancaster Customer

★★★★★

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

— Lancaster Homeowner

★★★★★

"Footing drain from the original builder had failed completely. New one actually slopes correctly and moves water like it should."

— Lancaster 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?

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

How long does exterior waterproofing take?

Larger projects or difficult access points can extend the timeline, which we'll outline in the written quote.

Service Coverage

Where Our Exterior Waterproofing Crews Work in Lancaster, PA

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

Reliable Exterior Waterproofing contractor in Lancaster, PA by SGP Waterproofing
Affordable Exterior Waterproofing solutions in Lancaster, PA
Trusted Exterior Waterproofing service in Lancaster, PA - SGP Waterproofing

Zip codes we serve in Lancaster, PA: 17603 17602 17601 17608 17622 17699

Get Exterior Waterproofing Handled Before It Gets Worse

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

Call +1-866-476-1348

Our Services in Lancaster, PA

Lancaster (/ˈlæŋkɪstər/ LANG-ki-stər; Pennsylvania German: Lengeschder) is a city in and the county seat of Lancaster County, Pennsylvania, and one of the oldest inland cities in the United States. With a population at the 2020 census of 58,039, it ranks 11th in population among Pennsylvania's municipalities. The Lancaster metropolitan area population is 552,984, making it the 104th-largest metropolitan area in the U.S. and second-largest in the South Central Pennsylvania area.

Zip Codes in Lancaster, PA that we also serve: 17603 17602 17601 17608 17622 17699

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