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.

Terrafirma did a fantastic job encapsulating our formerly wet and dirty crawlspace into a super clean environment. The crew members arrived on time each day and were hardworking, respectful and responsive to all of our questions. Thanks to the sump pump and the dehumidifier they installed, our crawlspace is totally dry now.

Portland, OR
Very smoothly handled process. Messy, dirty work but we would never have known it from the care the crews took to keep the adjacent basement site clean and useable while they were mucking about in the crawl space!
Portland, OR 97225

The URL on the commercial was not up long enough to read so it took some searching to find your site. Now that the job is done I am very happy I spent the time to find you guys.

Portland, OR 97218

Your product and performance appears to be about quality and satisfaction, with an unwillingness to jepardize product results/customer satisfaction with cost cutting shortcuts.

Milwaukie, OR 97222

Overall performance of TerraFirma was 5 star. My interaction with the call center, the sales rep and the installation foreman was very positive. Everyone was able to answer all my questions no matter how obscure. The fact we were able to finance the project same as cash was very helpful and we took full advantage of it. TerraFirma has really thought of every way to make the project run as smoothly as possible from start to finish and we are very happy with the outcome.

Portland, OR 97222
if we ever need any other work done you'll be the first company we'll call.
Milwaukie , OR 97267

Gage and his crew did a really good job. Were very friendly and professional. And apparently very efficient as job took half the time. All in all a very painless experience with a very clean crawl space as a result.

Portland, OR 97211

We had a great experience with TerraFirma. When we discovered water and mold in our basement, we explored options on how to recreate the living space we had come to rely on. TerraFirma offered the products that made sense and their service and installation was great. We now have our living space back. It is clean and dry and should stay that way for years to come!

When we had to dig up our basement floor to fix a plumbing issue (right after our new floor was installed!), TerraFirma gave great advice for how to remove and reinstall the floor. It was well within the reach of a DIY job. When there were a couple of finishing touches remaining, they came over and helped out.

This is a great local company to do business with. I recommend them highly!

Portland, OR 97212
There were some unclear expectations and a couple of accidents, but overall loved the guys and appreciate the work.
Portland, OR 97212
Over all good experience. But still un-tested because we have not had any heavy rains yet.
Portland, OR 97232
Your rep, Josh Anderson, was the first person to give us an honest straightforward proposal to help solve our erosion problems. Your company backed his findings with educated professional calculations. The crew who did the work were careful, efficient and professional in all their work. The work was completed on time and in the manner described in the bid.
Portland, OR 97219

When the project became challenged, Keith got involved and assured a successful outcome.

Terra Firma's willingness to work with me as the project scope changed is much appreciated.

Portland, OR 97203

I hired Terra Firma to help repair extensive foundation damage in my 105 year old house, a consequence of living next to Forest Park. Their response, performance and follow-up has been professional in every regard. Perhaps the best compliment I can give is that they did what they promised, on schedule and on time, without surprises. Subsequent to the main repair, secondary issues have come up twice and on each occasion they responded promptly and professionally and more importantly made the problems go away. I am a satisfied customer.

Portland, OR 97210
Terra Firma took a different approach, which while more expensive, was more complete.
Portland, OR 97225

Excellent and exceptional work from the whole team.

Portland, OR 97229

I just want to say again how much we appreciated the work that was done here. The crew worked so hard and such long hours every day and were always friendly and respectful to me. The excavations were done carefully and the yard/foundation areas were completely cleaned up when the job was done. Any questions or concerns I had during this process were quickly answered and I was always shown what was happening as the work proceeded.

I wanted all the guys who worked here to know how much their time and efforts were appreciated. Thank them for me.

-Robin and Monica.

Portland, OR 97224

Thank you again.

Tigard, OR 97224

Terra Firma recently did a crawl space drainage system for my home. Gage and his crew showed up right on time, did the job quickly, and cleaned up afterwords. Gage explained how everything works and answered all my questions to my satisfaction. I will definitely recommend Terra Firma.

Tigard, OR 97224

You have an ace in Ryan Lahley. He is an outstanding young man. Treat him well! From the minute I contacted your company to the signing of the contract I was treated very well. I feel totally comfortable having TerraFirma take on my project. I like having the materials sent our ahead of time. The extra information was very helpful.

Portland, OR 97231

Chad and the entire crew at the site were very professional and knew what they were doing. They seemed to be very competent and worked together really well.

Portland, OR 97231
TerraFirma Average: 4.8 out of 5
Total Reviews: 168

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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