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Fix It From the Outside In: Exterior Waterproofing in Frenchtown, NJ

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

24/7
Emergency Dispatch
100%
Flat-Rate Quotes
1-3
Day Turnaround
Written
Warranty Included
Licensed Exterior Waterproofing service in Frenchtown, NJ - SGP Waterproofing
Why Choose Us

Why Frenchtown, NJ Property Owners Choose SGP Waterproofing for Exterior Waterproofing

A lot of Frenchtown, NJ 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 Frenchtown, NJ 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

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 Frenchtown, NJ
What We Do

Comprehensive Exterior Waterproofing Solutions in Frenchtown, NJ

Every Frenchtown, NJ 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

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

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

This is often bundled with grading correction since the two issues usually show up together.

24/7 Emergency Exterior Waterproofing experts in Frenchtown, NJ
How It Works

What Happens After You Call SGP Waterproofing for Exterior Waterproofing

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 Frenchtown, NJ Customers Say About Our Exterior Waterproofing Work

Top rated local Exterior Waterproofing specialists in Frenchtown, NJ
★★★★★

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

— Frenchtown Homeowner

★★★★★

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

— Frenchtown Customer

★★★★★

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

— Frenchtown Homeowner

★★★★★

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

— Frenchtown Customer

FAQ

What Frenchtown, NJ 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?▼

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

How deep do you need to excavate?▼

We measure your specific foundation during the on-site inspection rather than assuming a standard 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?▼

Yes — grading correction and downspout extension are often standalone fixes that resolve a surprising number of Frenchtown, NJ 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

Exterior Waterproofing Coverage Across Frenchtown and Surrounding Frenchtown, NJ Communities

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

Reliable Exterior Waterproofing contractor in Frenchtown, NJ by SGP Waterproofing
Affordable Exterior Waterproofing solutions in Frenchtown, NJ
Trusted Exterior Waterproofing service in Frenchtown, NJ - SGP Waterproofing

Zip codes we serve in Frenchtown, NJ: 08825 8825

Frenchtown, NJ's Exterior Waterproofing Crew Is One Call Away

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

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Our Services in Frenchtown, NJ

Frenchtown is a borough in Hunterdon County, in the U.S. state of New Jersey. Frenchtown is located along the banks of the Delaware River on the Hunterdon Plateau, 32 miles (51 km) northwest of the state capital of Trenton. As of the 2020 United States census, the borough's population was 1,370, a decrease of three people (−0.2%) from the 2010 census count of 1,373, which in turn reflected a decline of 115 (−7.7%) from the 1,488 counted in the 2000 census.

Zip Codes in Frenchtown, NJ that we also serve: 08825 8825

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