Basement Waterproofing in OR, including Salem, Eugene & Portland.

Foundation Waterproofing: Why Does It Leak?

a flooded basement floor in a The Dalles home

Flooding in basements and crawl spaces is common in homes new and old, and they're rarely a one-time occurrence. Once water has flooded through your foundation, you can be certain that it will happen again.

There are two important factors that contribute to basement leaking -- the clay bowl effect and hydrostatic pressure.

We offer free waterproofing quotes in Salem, Beaverton, Eugene, Portland OR, Vancouver WA, Hillsboro, Gresham, Springfield, Corvallis, Albany, Lake Oswego, Bend OR, Longview WA, Tigard, Aloha, Lebanon, Keizer, Oregon City, Forest Grove, Canby, The Dalles, Camas, Troutdale, Astoria, Prineville, Hood River, Sherwood, Wilsonville, Redmond, McMinnvilleand many areas nearby. Call or e-mail us today to schedule an appointment!

The "Clay Bowl Effect" And Your Foundation

illustration of the clay bowl effect flooding a foundation

Imagine your home as it was being built. The contractors begin by digging a hole in the ground to make room for your basement and foundation. To do so, the contractor must dig a hole that is a little larger than the space your home will need. The foundation will be built inside this space, and the concrete floor will be poured.

Once the foundation has been built, some of the excavated soil is used to fill in the gap around the outer edge of your foundation. This soil, known as "backfill", will be loose and fluffed from the excavation. Meanwhile, the untouched soil around it, known as "virgin soil", may have been settling for hundreds, even thousands of years.

What does this mean for you? The backfilled soil surrounding your foundation will always be looser and more absorbent of water than the dense, hard-packed soil around it.

This forms a sort of "clay bowl" around your house -- one that creates an artificial water table around your home. Water collects the most right around your foundation -- exactly where you don't want it to be.

Hydrostatic Pressure and Wet Foundation Soils

Illustration of hydrostatic pressure leading to a flooding foundation

Water is heavy! As the soil around your home becomes soaked with moisture, the soil will expand, and the weight of the water will press on your foundation. This is known as hydrostatic pressure.

As hydrostatic pressure builds against your foundation, water will work its way into your basement or crawl space in any way possible. Water can make its way through concrete cracks in the walls or floors, through openings around pipes, through basement windows, or even directly through the porous concrete. If you have block walls, water may pass through the block and begin to fill the open cavities inside your walls.

However, the most common way that water enters a home is through the foundation wall-floor joint. We find that most flooded basements start with a leak here, where the floor and wall meet.

Waterproofing a Foundation in Oregon

Flood Warning

Protecting your home means more than just stopping groundwater. It's also important to keep an eye on your home plumbing, including the water heater and washing machine.

Small upgrades, such as warranteed washer hoses or water heater protection, can save you a bundle!

How do you dry a wet basement? By stopping water at the point where it enters the structure.

Since most basements flood from the wall-floor joint, one of the most common ways to stop the flooding is to install a perimeter drainage system along the edge of the basement floor. This would collect the water and direct it to a sump pump, which would then discharge it out of your home.

However, at John's Waterproofing, we have an approach to solving water problems of all types. Our solutions cover all surfaces of the basement, including the foundation walls, basement floors, and even wet crawl spaces.

We offer free basement waterproofing estimates in Oregon, including Salem, Beaverton, Eugene, Portland OR, Vancouver WA, Longview WA, Hillsboro, Lake Oswego, Gresham, Bend, Corvallis, Albany, Springfield OR, Tigard, Aloha, Lebanon, Keizer, Oregon City, Forest Grove, Canby, The Dalles, Camas, Troutdale, Astoria, Prineville, Hood River, Sherwood, Wilsonville, Redmond, McMinnville and many areas nearby. Contact us today to get started!

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Serving OR including the Greater Portland area
Our Oregon Service Area
Cities in Benton County, OR
Alsea
Blodgett
Corvallis
Monroe
Philomath

Cities in Clackamas County, OR
Beavercreek
Boring
Brightwood
Canby
Clackamas
Colton
Damascus
Eagle Creek
Estacada
Gladstone
Government Camp
Happy Valley
Lake Oswego
Marylhurst
Molalla
Mulino
Oregon City
Portland
Rhododendron
Sandy
Welches
West Linn
Wilsonville
Oak Grove
Milwaukie

Cities in Clatsop County, OR
Astoria
Hammond
Seaside
Tolovana Park
Warrenton

Cities in Columbia County, OR
Clatskanie
Columbia City
Deer Island
Rainier
Saint Helens
Scappoose
Vernonia
Warren

Cities in Deschutes County, OR
Bend
Brothers
La Pine
Redmond
Sisters

Cities in Gilliam County, OR
Condon

Cities in Grant County, OR
Canyon City
Dayville
John Day
Kimberly
Long Creek
Monument
Mount Vernon
Seneca

Cities in Hood River County, OR
Cascade Locks
Hood River
Mount Hood Parkdale
Odell

Cities in Jefferson County, OR
Ashwood
Camp Sherman
Culver
Madras
Terrebonne
Warm Springs

Cities in Lane County, OR
Alvadore
Blachly
Blue River
Cheshire
Creswell
Deadwood
Elmira
Eugene
Fall Creek
Florence
Junction City
Lowell
Mapleton
Marcola
Noti
Pleasant Hill
Springfield
Swisshome
Veneta
Vida
Walterville
Walton
Westlake

Cities in Lincoln County, OR
Depoe Bay
Eddyville
Gleneden Beach
Lincoln City
Logsden
Neotsu
Newport
Otis
Otter Rock
Seal Rock
Siletz
South Beach
Tidewater
Toledo
Waldport
Yachats

Cities in Linn County, OR
Albany
Brownsville
Cascadia
Crabtree
Crawfordsville
Foster
Halsey
Harrisburg
Lebanon
Lyons
Mill City
Scio
Shedd
Sweet Home
Tangent

Cities in Marion County, OR
Aumsville
Aurora
Detroit
Donald
Gates
Gervais
Hubbard
Idanha
Jefferson
Keizer
Mehama
Mount Angel
Saint Benedict
Saint Paul
Salem
Scotts Mills
Silverton
Stayton
Sublimity
Turner
Woodburn

Cities in Multnomah County, OR
Bridal Veil
Corbett
Fairview
Gresham
Portland
Troutdale
Northeast Portland
Northwest Portland
Southwest Portland
Southeast Portland
Eastmoreland
Hawthorne
Laurelhurst
Old Town
Pearl District
Irvington
Sellwood
Hollywood
Burlingame
Multnomah
Hillsdale
Alameda
Piedmont

Cities in Polk County, OR
Dallas
Falls City
Grand Ronde
Independence
Monmouth
Rickreall
Salem

Cities in Tillamook County, OR
Bay City
Beaver
Cloverdale
Hebo
Nehalem
Neskowin
Netarts
Oceanside
Pacific City
Rockaway Beach
Tillamook

Cities in Wasco County, OR
The Dalles

Cities in Washington County, OR
Banks
Beaverton
Buxton
Cornelius
Forest Grove
Gales Creek
Gaston
Hillsboro
Manning
North Plains
Portland
Sherwood
Timber
Tualatin
Tigard
Metzger

Cities in Yamhill County, OR
Amity
Carlton
Dayton
Dundee
Lafayette
Mcminnville
Newberg
Sheridan
Willamina
Yamhill

Cities in Clark County, WA
Amboy
Battle Ground
Brush Prairie
Camas
La Center
Ridgefield
Vancouver
Washougal
Yacolt

Cities in Cowlitz County, WA
Ariel
Kalama
Kelso
Longview
Woodland

Cities in Klickitat County, WA
Bingen
Centerville
Dallesport
Lyle
Wahkiacus
White Salmon

Cities in Skamania County, WA
Carson
Underwood

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