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Products & Services

Radon Mitigation

Radon Testing

Radon Detection

Radon Abatement

Radon Mitigation System

Basement Repair Services & Products

WaterGuard Interior System

DryTrak Drainage Channel

TrenchDrain Drain Grate

IceGuard Discharge Line

FlexiSpan Wall Crack Repair

Polyurethane Crack Sealing

WellDuct Window Drainage

BrightWall Waterproof Panels

ThermalDry Wall Barrier

Basement To Beautiful Pre-finishing Wall Insulation Panels

Drain Tile Installation

SuperSump Pump System

TripleSafe Pumping System

UltraSump Battery Back Up

Sanidry Dehumidifier

Crawl Space Repair Services & Products

CleanSpace Encapsulation Vapor Barriers And Liners

Turtl Access Hatch

EverLast Crawl Space Doors

Sanidry Csb Dehumidifier

SmartDrain Water Drainage

SilverGlo Wall Insulation

TerraBlock Floor Insulation

SmartSump Sump Pump

Crawl-o-Sphere Crawl Space Fan

WallCap Block Wall Sealer

SmartVent Flood Vents

Foundation Repair Services & Products

Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair

Geo-lock Wall Anchors

Geo-lock Helical Anchors

PowerBrace Bowed Wall Repair

CarbonArmor Fiber Wall Repair

SmartJack Crawl Space Support

Slab Pier Repair

PolyLevel Concrete Lifting

EZ Post Deck Repair

Shotcrete Wall Restoration

Company Awards

Elite Service Professional Award

By receiving no homeowner complaints and having more than five five star ratings on our profile, TerraFirma was awarded the... [Read more]

Home Advisor Top Rated Company

TerraFirma earned the "Top Rated" award from Home Advisor, a home improvement website that millions of homeowners trust to help... [Read more]

Inc. Fastest-Growing Private Companies in America

TerraFirma Foundation Systems ranked 1,1718 out of 5,000 companies on Inc. Magazine's Fastest Growing Private Companies in America. In Oregon,... [Read more]

More Awards

Your leading Cowlitz County, WA Wet Basement & Foundation Repair Company

Happy Customers Surrounding Cowlitz County, WA

Testimonials

Reviews

Work Requests

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Work requests in Cowlitz County, WA in Cowlitz

Would like a quote on waterproofing a basement.

Reviews from our customers in Cowlitz County, WA

5.0/5
Mike C. Longview, WA

things went as planned. a couple things were overlooked, no big deal. missed access opening under back room. I pulled wood and sawed a access hole. Also, missed removing some steel piping, again no big deal. I will cut the pipe and remove, probably in the next 5 or 10 years. good job

Responsible basement waterproofing, foundation repair & crawl space repair company serving Cowlitz County, WA

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems dealer in Cowlitz County, WA.

Services we offer in Cowlitz

Wet/flooded basement waterproofing solutions.
Lifetime warranty on all perimeter waterproofing systems.
Concrete Leveling & Lifting
Foundation and structural repair solutions.
25-year warranty against manufacturing defects on foundation products.
Crawl space sealing with CleanSpace vapor barrier.
25-year warranty on crawl space encapsulation systems.
Financing Available
FREE written estimates and inspections, and fast installation

CCB# 173547
WA: TERRAFR931LH

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