Basement Waterproofing in OR and WA, including Salem, Beaverton & Portland.

Basement Waterproofing Contractors Serving Portland, Eugene, Medford & nearby Oregon

Why more homeowners choose our system

  • Transferable lifetime dry basement warranty
  • Solutions for finished and unfinished basements
  • No destructive outside excavation
  • More than 30 patented products, all designed specifically for your basement

With more than a decade of expert foundation and waterproofing experience, TerraFirma are the local contractors you need for all your basement waterproofing needs.

We been featured on local radio shows and community events, and we are an award winning company. As the local member of the international Basement Systems network, we provide you with a unique line of patented products that provide you with the best waterproofing services available.

If you have musty smells, walls that feel damp, or if your basement floods with heavy rain, we can help. Not sure what’s causing your home’s wet basement? Let one of our experts take a look. We offer free inspections and estimates – schedule yours today! Call 1-541-229-4049 or click the button below to send us an e-mail. We service homeowners in Portland, Vancouver, Salem, Beaverton, Bend, Hillsboro, Gresham, Corvallis, Eugene, Albany, Coos Bay, Medford and nearby Oregon and Washington areas.


Signs of a basement waterproofing problem

Your damp or wet basement can cause more than just a headache; these issues can create bigger problems like mold, mildew, rot, structural damage, and a variety of health problems. If you’ve noticed any of the symptoms below, you might have a basement water problem.

  • Wet or damp basement floor
  • Leaking or damp basement walls
  • Pooling or standing water
  • Crystaline deposit on concrete surfaces
  • Musty odors
  • Condensation
  • Sump pump issues
  • Leaky basement windows

Custom, proven solutions for a dry basement

Our complete basement waterproofing system includes all the solutions you need for a dry, comfortable, odor-free basement; no matter what’s causing your issues. We offer many solutions for your home, including sump pumps, basement drainage systems, dehumidifiers, crack repairs, vapor barriers, and more.

basement systems logo

We believe you deserve only the best. That’s why we install a patented proven system developed and tested by Basement Systems, Inc. – the leader in “All Things Basementy!” For your peace of mind, our basement waterproofing system comes with a Lifetime Warranty that is transferable when you sell your home. We have a team of extensively trained basement repair specialists who can work with you to find the best solution for your home’s basement.

Customer Review
  • By Kip T.
    Ashland, OR
    "The job was done on time, the crew was friendly and did a excellent job."

    Customer Review

    By Kip T.
    Ashland, OR

    The job was done on time, the crew was friendly and did a excellent job.
  • By Karl M.
    Milwaukie, OR
    "if we ever need any other work done you'll be the first company we'll..."

    Customer Review

    By Karl M.
    Milwaukie, OR

    if we ever need any other work done you'll be the first company we'll call.
  • By John M.
    McMinnville, OR
    "Overall job well done. The final proof will be through time and we are..."

    Customer Review

    By John M.
    McMinnville, OR

    Overall job well done. The final proof will be through time and we are hopeful the good work so far will continue as the months go by

Request a free estimate from your local basement expert in Oregon and Washington

If you think you have a basement waterproofing problem, request a professional basement inspection today. We will send one of our certified basement waterproofing specialists to visit your home and conduct a thorough inspection of your home’s basement foundation.

TerraFirma fixes leaky basements in Oregon and Washington, including Portland, Vancouver, Salem, Beaverton, Bend, Hillsboro, Gresham, Corvallis, Eugene, Albany, Coos Bay, Medford and nearby OR areas. Contact us today for a free wet basement repair estimate.

Other companies might try to sell you on inferior basement waterproofing solutions. Our products have been developed, patented, and perfected by Basement Systems®, Inc. -- the world's largest network of basement waterproofing contractors.

Looking for a price? Get a no cost, no obligation free estimate.

TerraFirma Foundation Systems Inc is a BBB Accredited Foundation Contractor in Roseburg, OR
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Serving OR and WA
Our Oregon and Washington Service Area
Cities in Baker County, OR
Baker City
Halfway
Hereford
Huntington
Oxbow
Richland
Sumpter
Unity

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
Molalla
Mulino
Oregon City
Portland
Rhododendron
Sandy
Welches
West Linn
Wilsonville

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 Coos County, OR
Allegany
Bandon
Broadbent
Coos Bay
Coquille
Lakeside
Myrtle Point
North Bend
Powers

Cities in Crook County, OR
Paulina
Post
Powell Butte
Prineville

Cities in Curry County, OR
Agness
Brookings
Gold Beach
Langlois
Ophir
Port Orford
Sixes
Wedderburn

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

Cities in Douglas County, OR
Azalea
Camas Valley
Canyonville
Days Creek
Dillard
Drain
Elkton
Gardiner
Glendale
Glide
Idleyld Park
Myrtle Creek
Oakland
Reedsport
Riddle
Roseburg
Scottsburg
Sutherlin
Tenmile
Tiller
Umpqua
Wilbur
Winchester
Winston
Yoncalla

Cities in Gilliam County, OR
Arlington
Condon

Cities in Grant County, OR
Bates
Prairie City

Cities in Harney County, OR
Burns
Drewsey
Fields
Hines
Princeton
Riley

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

Cities in Jackson County, OR
Ashland
Butte Falls
Central Point
Eagle Point
Gold Hill
Jacksonville
Medford
Phoenix
Prospect
Rogue River
Shady Cove
Talent
Trail
White City

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

Cities in Josephine County, OR
Cave Junction
Grants Pass
Kerby
Merlin
Murphy
O Brien
Selma
Wilderville
Williams
Wolf Creek

Cities in Klamath County, OR
Beatty
Bly
Bonanza
Chemult
Chiloquin
Crater Lake
Crescent
Dairy
Fort Klamath
Gilchrist
Keno
Klamath Falls
Malin
Merrill
Midland
Sprague River

Cities in Lake County, OR
Adel
Christmas Valley
Fort Rock
Lakeview
New Pine Creek
Paisley
Plush
Silver Lake
Summer Lake

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

Cities in Lincoln County, OR
Depoe Bay
Eddyville
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
Foster
Halsey
Harrisburg
Lebanon
Lyons
Mill City
Scio
Shedd
Sweet Home
Tangent

Cities in Malheur County, OR
Adrian
Brogan
Harper
Ironside
Jamieson
Jordan Valley
Juntura
Nyssa
Ontario
Riverside
Vale
Westfall

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

Cities in Morrow County, OR
Boardman
Ione

Cities in Multnomah County, OR
Bridal Veil
Corbett
Fairview
Gresham
Portland
Troutdale

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

Cities in Sherman County, OR
Grass Valley
Kent
Moro
Wasco

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

Cities in Umatilla County, OR
Umatilla

Cities in Wasco County, OR
Antelope
Dufur
Maupin
Mosier
Shaniko
The Dalles
Tygh Valley

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

Cities in Wheeler County, OR
Fossil
Mitchell
Spray

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
Castle Rock
Cougar
Kalama
Kelso
Longview
Ryderwood
Silverlake
Toutle
Woodland

Cities in Grays Harbor County, WA
Aberdeen
Copalis Beach
Copalis Crossing
Cosmopolis
Elma
Grayland
Hoquiam
Mccleary
Oakville
Ocean Shores
Westport

Cities in Klickitat County, WA
Appleton
Bingen
Dallesport
Glenwood
Klickitat
Lyle
Trout Lake
White Salmon

Cities in Lewis County, WA
Centralia
Chehalis
Cinebar
Curtis
Ethel
Glenoma
Mineral
Morton
Mossyrock
Onalaska
Packwood
Pe Ell
Randle
Salkum
Silver Creek
Toledo
Vader
Winlock

Cities in Pacific County, WA
Ilwaco
Long Beach
Naselle
Ocean Park
Raymond
South Bend
Tokeland

Cities in Pierce County, WA
Ashford
Dupont
Eatonville
Elbe
Graham
Roy
Spanaway
Tacoma

Cities in Skamania County, WA
Carson
Stevenson
Underwood

Cities in Thurston County, WA
Olympia
Rainier
Rochester
Tenino
Yelm

Cities in Wahkiakum County, WA
Cathlamet
Grays River
Rosburg
Skamokawa

Please call us at: 1-541-435-7673
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