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

We excavate only where necessary and restore landscaping as part of the scope.

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

Why Allentown, PA Property Owners Choose SGP Waterproofing for Exterior Waterproofing

A lot of Allentown, 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 Allentown, PA exterior job.

2

Local Equipment Staging

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

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 Allentown, PA
What We Do

What Our Exterior Waterproofing Service Actually Covers

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

Exterior

Foundation Excavation & Membrane Installation

This is the most comprehensive Allentown, PA waterproofing fix available, addressing the wall itself rather than just managing water after it gets in.

Exterior

Footing Drain (French Drain) Installation

A perforated footing drain collects groundwater at the base of the foundation and routes it away before it can build pressure against the wall.

Exterior

Exterior Grading Correction

We regrade the perimeter to direct surface water away from the wall, typically paired with downspout extensions.

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 Allentown, PA
How It Works

From Call to Resolution: How Exterior Waterproofing Works in Allentown, 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

We flag any utility lines or landscaping features that need special handling during excavation.

03

Written Excavation Quote

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

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 Allentown, PA Property Owners

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

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

— Allentown Homeowner

★★★★★

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

— Allentown Customer

★★★★★

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

— Allentown Homeowner

★★★★★

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

— Allentown Customer

FAQ

What Allentown, PA Customers Ask Us Most About Exterior Waterproofing

What's the difference between interior and exterior waterproofing?

We'll recommend the right approach based on what the inspection actually finds.

Will excavation damage my landscaping?

Some disruption is unavoidable near the foundation, but we restore grading and replant where reasonable as part of the scope.

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 Allentown, PA 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

Where Our Exterior Waterproofing Crews Work in Allentown, PA

We handle exterior excavation and membrane work throughout Allentown and the surrounding Allentown, PA service area, including the zip codes listed below.

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

Zip codes we serve in Allentown, PA: 18104 18101 18103 18102 18109 18001 18105

Don't Wait On Exterior Waterproofing — Call Now

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

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Our Services in Allentown, PA

Allentown (Pennsylvania Dutch: Allenschteddel, Allenschtadt, or Ellsdaun) is a city in Lehigh County in the Commonwealth of Pennsylvania, United States. The city had a population of 125,845 at the time of the 2020 census.

Zip Codes in Allentown, PA that we also serve: 18104 18101 18103 18102 18109 18001 18105

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