How much livable space
is hiding underneath your home?

Basement Wall Solutions by TerraFirma

Transform your basement into a livable, permitted space.

With Basement Wall Solutions by TerraFirma, neglected spaces become a structurally-stabilized, seismically-improved, waterproof, and fully-permitted extension of your home. Think of it as a waterproof concrete box that you can turn into anything from extra living quarters to a hobby room for you and your family. Basement Wall Solutions by TerraFirma will work with you and our professional design team to provide the space your family needs. With the added livable space, your home's value will increase significantly.

Contact Basement Wall Solutions by TerraFirma today for a free estimate.

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What Basement Wall Solutions by TerraFirma Offers You

Basement Digging
  • A foundation in compliance with current building codes
  • Seismically improved structure
  • Waterproof basement
  • Ready to finish

Our Basement Wall Solutions Process

Step 1


Stabilize your basement with strong backs.

Stabilizing basement with strong backs

Step 2


Excavate flooring to desired depth.

Excavating a basement floor

Step 3

Reinforcing bar

Install rebar to foundation walls.

Placing rebar on foundation walls

Step 4


Continuous footing around perimeter and support post footings.

Adding footing around basement perimeter

Step 5


Shotcrete is blasted on to foundation walls.

Basement walls blasted with Shotcrete

Step 6


Install a WaterGuard system to provide drainage.

Sump pump and basement drainage diagram

Step 7

New slab

Install compacted base rebar mesh and vapor barrier, then pour new slab floor.

Rebar, vapor barrier, and concrete floor are installed in the basement

Step 8

Basement Ready for Finishing

Your new space is now ready for your general contractor to complete.

Image of a modern finished basement space

Let us help you start transforming your basement today!

Scheduling a consultation with a TerraFirma System Design Specialist is the first step to turning your neglected basement into a livable space.

Our in-house team has the resources and expertise to take on any basement project you're considering for your home. We offer free cost estimates for projects in Seattle, Portland, Tacoma and surrounding areas in Oregon and Washington. Contact us today to request yours!

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

our service area

We serve the following areas

  • Adams
  • Adrian
  • Arock
  • Athena
  • Baker City
  • Bates
  • Boardman
  • Bridgeport
  • Brogan
  • Burns
  • Canyon City
  • Cove
  • Crane
  • Dayville
  • Diamond
  • Drewsey
  • Durkee
  • Echo
  • Elgin
  • Enterprise
  • Fields
  • Frenchglen
  • Haines
  • Halfway
  • Harper
  • Helix
  • Heppner
  • Hereford
  • Hermiston
  • Hines
  • Huntington
  • Imbler
  • Imnaha
  • Ione
  • Ironside
  • Irrigon
  • Jamieson
  • John Day
  • Jordan Valley
  • Joseph
  • Juntura
  • Kimberly
  • La Grande
  • Lexington
  • Long Creek
  • Lostine
  • Meacham
  • Milton Freewater
  • Monument
  • Mount Vernon
  • North Powder
  • Nyssa
  • Ontario
  • Oxbow
  • Paulina
  • Pendleton
  • Pilot Rock
  • Prairie City
  • Princeton
  • Richland
  • Riley
  • Riverside
  • Seneca
  • Spray
  • Stanfield
  • Summerville
  • Sumpter
  • Ukiah
  • Umatilla
  • Union
  • Unity
  • Vale
  • Wallowa
  • Westfall
  • Weston
Our Locations:

TerraFirma Foundation Systems
761 NE Garden Valley Blvd.
Roseburg, OR 97470

TerraFirma Foundation Systems
13110 SW Wall St
Portland, OR 97223

TerraFirma Foundation Systems
10111 S Tacoma Way D5
Tacoma, WA 98499