Floor Joist & Sagging Floor Support Systems

When floors in the home start to sag, this may not be a foundation issue but a possible problem in the crawl space underneath. Homeowners in Oregon and Washington are very familiar with the damage our wet, damp, and expanding soils do to our homes.

SmartJack®



Foundation
Reinforcement


Foundation
Anchor


Wall Stabilization/
Restoration
Best for slab / poured concrete foundation
Best for post-and-pier foundation
Correct tilting chimney
Retaining wall leaning / collapsing
Pre-construction piers
For decks & porch foundations
For multi-story homes
For commercial structures

TERRAFIRMA IN ACTION

Our team has over 20 years of experience fixing foundations across Oregon & Washington.
Check out their helpful Homeowner Tips and some great Case Studies of our Foundation Repair work.

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foundation
Homeowner
REVIEWS

Don’t take our word for it – see what our clients have to say.
From Roseburg to Eugene, Portland to Seattle, our Foundation Repair work speaks for itself

After I bought a 115 year old house built partially into a hill near the top of Council Crest in Portland and discovered that the walls bled water when it rained, two walls were built into a hill and had endured the pressure of water and mud for a century, causing cracks and turning the foundation to crumbles, I called Terra Firma when an neighbor with an old house told me about her experience. Terra Firma has a great reputation. During the first meeting, Hannah walked the property and made a detailed proposal, explaining how Terra Firma would ensure that the walls do not cave in by shoring them up and anchoring them, supplemented with a vapor lock system to keep the water out of the house. NO MORE MUSTY SMELL, THANK YOU! Hannah explained the plan thoroughly, using her iPad to ensure that I understood. It could not get any better than this...I signed the paperwork immediately and contracted for the foundation repair and upgrade. This week, Geovany and his team spent four days working very hard and very smart to finish the project on time, and without any hitches. And they were working hard, very thoughgoing and steadfast.

I am extraordinarily pleased with the work of the TerraFirma team, and how they did it. It is obvious by looking at the work that my basement walls are solid, secure, and dry.

THANK YOU TerraFirma!
Terra Firma is an excellent company to work with. Everything from the assessment with Matt, the permitting process, and the actual job and clean up with Sam and his team went seamlessly. The foundation is now solid and feels much better. Exceptional service and quality workmanship. Highly recommended.
Hey Folks, So just over a year ago we were having some issues at the house, I wrote to all of you on how wonderful TerraFirma was to us and I am here to tell you... THEY DID IT AGAIN! I starting noticing some movement in the driveway and inside the garage again. Called up Bree in the office and asked to have someone come take a peek. Edwin came out, what an awesome dude! Edwin spent a short time at the house remeasuring a couple things to compare back at the office with measurements from a few months ago, We heard from Bree that the measurements were still within reason. I let Bree know, something is not sitting well with me and I really would like to chat with the Mgr. So I received a call from Tulane, Again SUPER DUDE! Tulane assured me with my husband present that I am not being in any sorts a pain, I have concerns and he and Sam, who came out in 2024 will come to the house.

Well they came, they saw, Oh Boy! I was not wrong, they were here 2.5 hrs and again, the house has had some movement and we need some more work to stabilize. We have some additional C.Y.A's to add to this round, as our neighborhood and home has lots of sand in the soil so we are going to be looking into getting a GEO Engineer out to see what is causing the movement.

I give all the back info, because I want you all to know, if you feel something is not right CALL and have your home looked at. TerraFirma is NOT redoing what they already did, this is all new issues, not their fault at all... Tulane and Sam are amazing, they took the time to explain and give us all options. The info they share through experience and knowledge is beyond me and it is so appreciated.

If you have any foundation, sinking driveways, walkways, stairs, cracking in your walls, around windows, doors.... Call these guys!
I hands down don't always do reviews but I do for these guys because they deserve to have their names out there so you know they are TAKING CARE of their customers the whole way through! 10/10 and then some.... THANK YOU!
James and his crew were efficient, kind, and exceeded my expectations. My foundation was needed piers both outside and in the basement, yet they were quick and cleaned up. I even noticed a change in my home’s interior when it was fixed! Cracks closed up. They took care of the whole process, including permits and inspections. And, James communicated, including walking me through, clearly listening to my responses.

I recommend TerraFirma, especially James who was the foreman on my job, especially to those who want to be respected, want to understand what is happening, and want good communication throughout the job.
The process of stabilizing my foundation was done quickly and professionally. Permits and reports were provided upon completion. They were a pleasure to work with. The site visits were scheduled in advance and they were always there when scheduled. The final work was completed when scheduled and the site was cleaned up with minimal disturbance. If I had a question, they were always quick to explain the process. A pleasure to work with.
Bailey was timely and thorough in his assessment, estimate, and reporting on my inquiry about a foundation crack. Although I decided not to have any work done at this time I was pleased with their service.
We had a fantastic experience with TerraFirma Foundation Systems! Their team quickly and accurately diagnosed our foundation issue and clearly explained multiple repair options, which helped us feel informed and confident in our decision.

Once work began, they oversaw everything from start to finish with professionalism and great communication. The crew working in our crawl space was hardworking and efficient — they did a great job installing a French drain and sump pump, and left the area clean and well-organized.

We really appreciated how smoothly the whole process went. Highly recommend TerraFirma to anyone needing foundation or drainage work!
Mike, Steve and their crew from Terra Firma were outstanding. They were professional, on time and did some amazing work. I was very impressed with how they answered my questions and their quality of work. I would highly recommend Terra Firma for any of your foundation needs.
The crew did a great job fixing our sinking foundation! Two days and they came in and dug everything up then set the anchors and then backfilled! Great Job!
Jaden came out and reassured us that our foundation was good but our garage floor is settling.
We look forward to working with Jaden and Terrafirma in early summer to fix the problem.(Too difficult to move everything off garage floor this time of year)
Thanks again Jaden for your professionalism.

Foundation Repair Homeowner Questions

How much does foundation repair cost?

Every home is different, so costs vary considerably depending on the type of foundation, existing issues, and ground/soil conditions. Keep in mind that delaying foundation repair will cause the issue to worsen, and may cause the cost to increase considerably if repair is avoided. TerraFirma also offers excellent financing packages.

How do I repair crumbling basement walls?

We have a number of options for repairing and stabilizing crumbling walls. Walls showing cracks can be stabilized with braces custom fit and secured tightly to the walls in question. For walls in really bad shape, our EverBrace Wall Replacement system is a permanent solution.

What’s included in my free estimate?

To help you decide if our solution is right for you, we provide free foundation repair estimates. Each estimate includes an on-site inspection, a professional assessment of your foundation issue, and a detailed cost estimate that we build with you for your home.

Do you handle the permits and logistics?

We do! TerraFirma employs a team of project managers who will be with you every step of the installation process. If your project requires structural or geotechnical engineering, special inspections, or permits–TerraFirma will help with all of the logistics involved. TerraFirma partners with high-quality trusted Northwest engineering firms and prides itself on thorough communication throughout the entire project process.

How does the warranty work?

We stand by our work and offer some of the longest term warranties on the market. Warranties are fully transferrable, should you decide to sell your home. Some of our warranties require annual maintenance. Click here to view our warranties.