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.

TerraFirma Reviews and Ratings

Check out reviews and comments from our past customers.

we're very pleased. the solution fully addressed the problem and greatly enhanced the comfort and value of our home.

Lake Oswego, OR 97034
Lake Oswego, OR 97034
Lake Oswego, OR 97035
Lake Oswego, OR 97035
Lake Oswgo, OR 97035
I was very pleased with all aspects of the work...I would highly recommend your firm to anyone who asked about it!
Silverton, OR 97381
Olympia, WA 98502
Tualatin, OR 97062
Tualatin, OR 97062
Wilsonville, OR 97070

I will never go with anyone else but Terra Firma. My crawl space looks great and my house and family are healthy.

Beaverton, OR 97006

We were very impressed with the professionalism and courtesy. And, the Thank Yous, at least two. Awesome experience.

Beaverton, OR 97007
Portland, OR 97075

Extremely happy with both crews that came to my home. Respect for my home and property was a priority with them, and the work so far is very satisfactory. I feel I can call them anytime if a question arises. Thank you so much!

Warren, OR 97053

I'm glad I had my CLEANSPACE installed BEFORE I had any problems with mold or rot.

Saint Helens, OR 97051

You can be proud of the this team!

Deer Island, OR 97054

I called many contractors to find some one to level our house a year or so ago but no one would bid on the job. They were afraid of the liability. Some contractor wanted soil engineering work done with no estimate of the cost of that work, and no assurance that the house could be leveled. I found this unacceptable, so after calling dozens of contractors I didn't like the idea but decided to just live with the problem. There was a difference in the floor height of nine inches and there was no step.

A year or more later Patrick Dunn from TerraFirma called and said he had learned about our house problem from one of the contractors we had contracted and TerraFirma had a solution.

TerraFirma did the job. I am extremely pleased with the work done. The workers went beyond what I expected in every way. They were friendly and polite. Answered all my many questions and work quality was superb as was cleanup each day and at job completion. There was absolutely no problems with the work done. I highly recommend TerraFirma.

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

Longview, WA 98632

Thank You!

Hillsboro, OR 97124

Drew, our installation crew chief, did an outstanding job!

Hillsboro, OR 97123
TerraFirma Average: 4.8 out of 5
Total Reviews: 176

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
13110 SW Wall St
Portland, OR 97223
1-541-229-4049