About TerraFirma

We cover all of Oregon and Southwest Washington.

Fix it once. Fix it with confidence. Fix it with TerraFirma

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Founded in 2005, TerraFirma has been a partner in keeping your home safe and sound structurally for over a decade. The foundation experts have gained a reputation of providing all customers with the best quality of service. Each employee is extensively trained and certified in foundation repair and basement waterproofing, so you can rest assured knowing you are in good hands.

At TerraFirma, we understand that foundation cracks, wet crawlspaces, and musty basements are stressful. We offer a free onsite estimate for all work that you may need to be completed, and we will work with you to customize a solution for your home.

TerraFirma stands by our promise of solving your foundation problem and basement needs in the most efficient manner.

Features of the PolyLEVEL™ System by Foundation Supportworks

Soil erosion and settlement often cause concrete slabs in patios, sidewalks and driveways to sink into the ground. This type of settlement isn't just unsightly; it can also cause more damage and can be a safety hazard. Water tends to pool on sunken surfaces and unleveled floors cause a trip hazard. 

Until now, the only solution available to repair sinking slabs was mudjacking, a process that involves drilling holes in the slab to inject a mixture of cement and mud underneath, to raise it back to level. 

Foundation Supportworks, an industry leader in the development of foundation repair technologies and solutions, proudly introduces the most advanced alternative to mudjacking - the PolyLEVEL™ System.

The PolyLEVEL™ System is a state-of-the-art approach to repairing sinking concrete slabs. It combines the concept of mudjacking with the most advanced technology. 
Instead of using a mix of mud and cement to raise the slab, PolyLEVEL™ utilizes high-density polyurethane specially engineered for this purpose. 

The advantages of using PolyLEVEL™ over conventional mudjacking are many. PolyLEVEL™ is lighter than mud-cement mixes (4lbs per cubic yard opposed to concrete's 120lbs). It will raise the slab without adding a lot of weight to it. 
The expanding nature of the material allows it to penetrate crevices in the soil, completely filling the cavity and safely raising the slab to the desired level. 

PolyLEVEL™ is also environmentally-friendly and made with recycled materials. 
It can be installed in just one day, through smaller, penny-sized holes drilled in the concrete and just 5 minutes after installation you can walk or drive over the slab!
There is no need for extended periods of curing, as is the case with cement and mud compounds. 

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
1-541-204-4660


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


TerraFirma Foundation Systems
7910 SW Hunziker St
Portland, OR 97223
1-541-229-4049
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