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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

TerraFirma serving Multnomah County, OR

For a FREE no-obligation basement waterproofing, foundation repair, radon mitigation, crawl space repair estimate in Multnomah County, OR, please fill out the form to the right and TerraFirma will contact you shortly.
Happy Customers Surrounding Multnomah County, OR
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Responsible basement waterproofing, foundation repair, radon mitigation, crawl space repair company serving Multnomah County, Oregon

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 Multnomah County, OR.

Services we offer in Multnomah County:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • 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
Work Requests From Multnomah County, OR
SE Stephens St in Multnomah
Foundation & water proofing basement
Serving the following Multnomah County, OR zip codes
Portland 97233, Portland 97220, Portland 97213, Portland 97206, Portland 97283, Portland 97240, Portland 97230, Portland 97217, Portland 97210, Portland 97293, Portland 97203, Portland 97266, Portland 97236, Portland 97221, Portland 97214, Portland 97207, Portland 97286, Portland 97242, Portland 97231, Portland 97218, Portland 97211, Portland 97294, Portland 97204, Portland 97280, Portland 97238, Portland 97227, Portland 97215, Portland 97208, Portland 97290, Portland 97201, Portland 97256, Portland 97232, Portland 97219, Portland 97212, Portland 97296, Portland 97205, Portland 97282, Portland 97239, Portland 97228, Portland 97216, Portland 97209, Portland 97292, Portland 97202, Portland 97258, Gresham 97080, Gresham 97030, Troutdale 97060, Fairview 97024, Corbett 97019, Bridal Veil 97010
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