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Merrick, NY's Exterior Waterproofing Crew: Membrane, Drain Tile, and Grading

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 Merrick, NY - SGP Waterproofing
Why Choose Us

Why Merrick, NY 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

We call in utility locates before any digging starts, standard on every Merrick, NY 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 Merrick, NY
What We Do

What Our Exterior Waterproofing Service Actually Covers

Every Merrick, 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 Merrick, 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

Soil that slopes toward the foundation instead of away from it is one of the most common Merrick, NY 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

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

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

Our Four-Step Exterior Waterproofing Dispatch Process

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

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

Hear From Merrick, NY Customers We've Already Helped

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

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

— Merrick Homeowner

★★★★★

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

— Merrick Customer

★★★★★

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

— Merrick Homeowner

★★★★★

"Fast turnaround given how much digging was involved."

— Merrick Customer

FAQ

What Merrick, NY Customers Ask Us Most 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?▼

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 Merrick and Surrounding Merrick, NY Communities

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

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

Zip codes we serve in Merrick, NY: 11566 11520

Get Exterior Waterproofing Handled Before It Gets Worse

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

Call +1-866-476-1348

Our Services in Merrick, NY

Merrick is a hamlet and census-designated place (CDP) in the Town of Hempstead in Nassau County, on the South Shore of Long Island, in New York, United States. As of the 2019 census, the population was 20,130.

Zip Codes in Merrick, NY that we also serve: 11566 11520

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