Basement Waterproofing in WA, including Olympia, Kent & Seattle.

Professional Basement Waterproofing Contractor in Seattle, Tacoma, Olympia, Bellevue WA Areas

At TerraFirma Foundation Systems, we have been repairing wet basements in our area since 2002. Our highly skilled and certified technicians are well versed in all the procedures and products needed to quickly and effectively complete the project. We can handle jobs of any size- there are no basements that we can’t fix!

Call or contact us today to learn more or to schedule a visit from one of our basement experts for a free waterproofing estimate. Our assistance can keep your basement dry all the time!

Typical Waterproofing Solutions:

(Click for more information about each solution.)

With its many years of research, Basement Systems has created the longest-lasting and most effective solutions for repairing a wet basement. The Basement Systems network consists of dealers spanning the U.S., Canada, and the United Kingdom, and to date, their waterproofing systems have repaired hundreds of thousands of basements and crawl spaces worldwide.

We’ve used the best ideas from established waterproofing techniques and combined them to design some of the most innovative and highly effective systems available on the market. Examples of these are the French drain and sump pump systems that have been specifically manufactured to handle situations in below-grade locations.

Expert basement waterproofing in Washington

Basement moisture issues are not a new development. Porous concrete foundations are a permeable surface, and this leads to the notoriously damp basements we are familiar with. Water will try to seep through any location it can, and the basement is no exception.

Don’t get stuck with an inferior product- contact the experts at TerraFirma Foundation Systems today to learn more about basement waterproofing or to schedule a Free Estimate. We proudly offer our services to Tacoma, Seattle, Olympia, Bellevue, Kent, Puyallup, Renton, Auburn, Redmond, Federal Way, Lakewood, Kirkland, Sumner, Issaquah, Spanaway, Woodinville, Gig Harbor, and the neighboring cities and towns in Washington.

 

Exterior Excavation

Heavy equipment is brought in to dig out the entire perimeter of the basement. New drain lines are installed, and sometimes a waterproof coating is applied to foundation walls. This waterproofing strategy is expensive and often damages lawn and garden areas. Exterior drains are prone to clogging with silt and roots over time.

Interior Subfloor Drain

This drain line is installed underneath the basement floor, just inside the foundation walls. The hidden drainage system brings water to a sump pit, where a sump pump automatically pumps it outside. Also known as a French Drain, this system is not prone to clogging; it’s reliable and easy to service.

Interior Baseboard System

A hollow plastic baseboard is installed along the base of basement walls to form a drainage channel that directs water to a sump pump system. A baseboard-type drainage system is sometimes recommended when the basement slab is too thin to accommodate a French Drain.

Negative-side Sealant

This waterproofing technique involves "painting" basement walls and floors with a waterproof, cement-based coating that's supposed to seal out moisture. Even when applied correctly, this thin membrane usually fails in response to prolonged hydrostatic pressure from outside the foundation.

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

Serving WA including the Greater Seattle area
Cities in Benton County, WA
Benton City
Kennewick
Prosser
Richland
West Richland

Cities in Cowlitz County, WA
Castle Rock
Cougar
Ryderwood
Silverlake
Toutle

Cities in Franklin County, WA
Pasco

Cities in King County, WA
Auburn
Baring
Bellevue
Black Diamond
Bothell
Burton
Carnation
Duvall
Enumclaw
Fall City
Federal Way
Hobart
Issaquah
Kenmore
Kent
Kirkland
Maple Valley
Medina
Mercer Island
North Bend
Pacific
Preston
Ravensdale
Redmond
Renton
Sammamish
Seahurst
Seattle
Skykomish
Snoqualmie
Vashon
Woodinville

Cities in Kittitas County, WA
Thorp

Cities in Klickitat County, WA
Appleton
Bickleton
Glenwood
Goldendale
Roosevelt
Trout Lake

Cities in Lewis County, WA
Curtis
Ethel
Glenoma
Mineral
Morton
Mossyrock
Packwood
Pe Ell
Randle
Salkum
Toledo
Vader
Winlock

Cities in Pacific County, WA
Naselle

Cities in Pierce County, WA
Anderson Island
Ashford
Bonney Lake
Buckley
Camp Murray
Carbonado
Dupont
Eatonville
Elbe
Fox Island
Gig Harbor
Graham
Lakebay
Lakewood
Longbranch
Mcchord Afb
Milton
Orting
Puyallup
Roy
Spanaway
Steilacoom
Sumner
Tacoma
University Place

Cities in Skamania County, WA
Stevenson

Cities in Thurston County, WA
Lacey
Olympia
Yelm

Cities in Wahkiakum County, WA
Cathlamet
Grays River
Rosburg
Skamokawa

Cities in Yakima County, WA
Cowiche
Grandview
Granger
Harrah
Mabton
Moxee
Naches
Outlook
Selah
Sunnyside
Tieton
Toppenish
Wapato
White Swan
Yakima
Zillah

Our Locations:

TerraFirma Foundation Systems
761 NE Garden Valley Blvd.
Roseburg, OR 97470
1-253-533-2399


TerraFirma Foundation Systems
10111 S Tacoma Way Suite D5
Lakewood, WA 98499
1-253-777-0712