Call +1-866-476-1348
● On call every hour of every day

Lake Oswego, OR'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 Lake Oswego, OR - SGP Waterproofing
Why Choose Us

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

A lot of Lake Oswego, OR 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 Lake Oswego, OR exterior job.

2

Local Equipment Staging

Weather-dependent scheduling means we plan exterior jobs around Lake Oswego, OR'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 Lake Oswego, OR
What We Do

The Full Scope of Our Lake Oswego, OR Exterior Waterproofing Work

Every Lake Oswego, OR 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

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

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

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 Lake Oswego, OR
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

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

What Lake Oswego, OR Customers Say About Our Exterior Waterproofing Work

Top rated local Exterior Waterproofing specialists in Lake Oswego, OR
★★★★★

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

— Lake Oswego Homeowner

★★★★★

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

— Lake Oswego Customer

★★★★★

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

— Lake Oswego Homeowner

★★★★★

"Fast turnaround given how much digging was involved."

— Lake Oswego Customer

FAQ

Frequently Asked Questions 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?▼

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 Lake Oswego, OR 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

Proudly Providing Exterior Waterproofing Throughout Lake Oswego and Lake Oswego, OR

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

Reliable Exterior Waterproofing contractor in Lake Oswego, OR by SGP Waterproofing
Affordable Exterior Waterproofing solutions in Lake Oswego, OR
Trusted Exterior Waterproofing service in Lake Oswego, OR - SGP Waterproofing

Zip codes we serve in Lake Oswego, OR: 97034 97035 97036

Get Exterior Waterproofing Handled Before It Gets Worse

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

Call +1-866-476-1348

Our Services in Lake Oswego, OR

Lake Oswego (/ɒsˈwiːɡoʊ/ oss-WEE-goh) is a city in the U.S. state of Oregon, primarily in Clackamas County, with small portions extending into neighboring Multnomah and Washington counties. Population in 2020 was 40,731, a 11.2% increase since 2010. Located about 7 miles (11 km) south of Portland and surrounding the 405-acre (164 ha) Oswego Lake, the town was founded in 1847 and incorporated as Oswego in 1910. The city was the hub of Oregon's brief iron industry in the late 19th century, and is today a suburb of Portland.

Zip Codes in Lake Oswego, OR that we also serve: 97034 97035 97036

Cities Close To Lake Oswego, OR That We Also Serve


Exterior Waterproofing Express #1
★ 4.9 (120+ Reviews)
Dispatch Center, OR
Call +1-866-476-1348
Exterior Waterproofing Express #2
★ 4.9 (120+ Reviews)
Dispatch Center, OR
Call +1-866-476-1348
Exterior Waterproofing Express #3
★ 4.9 (120+ Reviews)
Dispatch Center, OR
Call +1-866-476-1348
Exterior Waterproofing Express #4
★ 4.9 (120+ Reviews)
Dispatch Center, OR
Call +1-866-476-1348
Exterior Waterproofing Express #5
★ 4.9 (120+ Reviews)
Dispatch Center, OR
Call +1-866-476-1348
Exterior Waterproofing Express #6
★ 4.9 (120+ Reviews)
Dispatch Center, OR
Call +1-866-476-1348
🟢 Techs On Duty in Lake Oswego, OR Call +1-866-476-1348