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Exterior Waterproofing in Jericho, NY — Stop Water Before It Reaches the Wall

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

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Licensed Exterior Waterproofing service in Jericho, NY - SGP Waterproofing
Why Choose Us

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

A lot of Jericho, NY 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

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 Jericho, NY'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

Membrane seams are overlapped and sealed to manufacturer spec so the barrier performs as designed for decades, not just years.

Professional Exterior Waterproofing technician working in Jericho, NY
What We Do

Comprehensive Exterior Waterproofing Solutions in Jericho, NY

Every Jericho, NY 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 Jericho, NY waterproofing fix available, addressing the wall itself rather than just managing water after it gets in.

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

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

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

24/7 Emergency Exterior Waterproofing experts in Jericho, NY
How It Works

From Call to Resolution: How Exterior Waterproofing Works in Jericho, NY

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

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

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 Jericho, NY Property Owners

Top rated local Exterior Waterproofing specialists in Jericho, NY
★★★★★

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

— Jericho Homeowner

★★★★★

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

— Jericho Customer

★★★★★

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

— Jericho Homeowner

★★★★★

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

— Jericho 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?▼

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 Jericho, NY 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 Jericho, NY

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

Reliable Exterior Waterproofing contractor in Jericho, NY by SGP Waterproofing
Affordable Exterior Waterproofing solutions in Jericho, NY
Trusted Exterior Waterproofing service in Jericho, NY - SGP Waterproofing

Zip codes we serve in Jericho, NY: 11753 11853

Don't Wait On Exterior Waterproofing — Call Now

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

Call +1-866-476-1348

Our Services in Jericho, NY

Jericho /dʒɛrɪkoʊ/ is a hamlet and census-designated place (CDP) in the Town of Oyster Bay in Nassau County, on the North Shore of Long Island, in New York, United States, approximately 29 miles (47 km) east of Midtown Manhattan. Its population was 14,808 at the time of the 2020 census.

Zip Codes in Jericho, NY that we also serve: 11753 11853

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