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Exterior Waterproofing in Catonsville, MD — Stop Water Before It Reaches the Wall

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

Licensed Exterior Waterproofing service in Catonsville, MD - SGP Waterproofing
Why Choose Us

What Sets Our Exterior Waterproofing Team Apart in Catonsville, MD

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 Catonsville, MD 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 Catonsville, MD
What We Do

Comprehensive Exterior Waterproofing Solutions in Catonsville, MD

We scope every Exterior Waterproofing job in person before quoting it, since two properties with the same symptom rarely need the same fix.

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 Catonsville, MD water intrusion causes, and it's often the cheapest fix on this list.

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 Catonsville, MD
How It Works

Our Four-Step Exterior Waterproofing Dispatch Process

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

You'll see linear footage, membrane type, and footing drain scope broken out with pricing before any digging starts.

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 Catonsville, MD Customers Say About Our Exterior Waterproofing Work

Top rated local Exterior Waterproofing specialists in Catonsville, MD
★★★★★

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

— Catonsville Homeowner

★★★★★

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

— Catonsville Customer

★★★★★

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

— Catonsville Homeowner

★★★★★

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

— Catonsville 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?

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 Catonsville, MD

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

Reliable Exterior Waterproofing contractor in Catonsville, MD by SGP Waterproofing
Affordable Exterior Waterproofing solutions in Catonsville, MD
Trusted Exterior Waterproofing service in Catonsville, MD - SGP Waterproofing

Zip codes we serve in Catonsville, MD: 21250 21228

Catonsville, MD's Exterior Waterproofing Crew Is One Call Away

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

Call +1-866-476-1348

Our Services in Catonsville, MD

Catonsville (/ˈkeɪtənzˌvɪl/) is a census-designated place (CDP) in Baltimore County, Maryland. The population was 41,567 at the 2010 census. The community lies to the west of Baltimore along the city's border. Catonsville contains the majority of the University of Maryland, Baltimore County (UMBC), a major public research university with close to 14,000 students.

Zip Codes in Catonsville, MD that we also serve: 21250 21228

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