Crawl Space Support Posts | TerraFirma Foundation Systems

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.


Crawl Space Support Joist SmartJack small crawl space


tf expert icon2 crawl space

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


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.


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

The Terra Firma team was wonderful! My foundation was in need of repair for quite some time. Terra Firma stabilized and repaired my foundation with the utmost care. I am extremely appreciative and will recommend Terra Firma to anyone in need of foundation work.
I was referred to John from Terra Firma when I was looking to have our foundation inspected. John was very friendly and knowledgable and came out to our house to measure and inspect everything. In the end he was able to put our mind at ease and did a great job of explaining different scenarios and what he was looking for.John even inspected the crawlspace while he was out and provided great feedback there as well. Overall we got a lot of good information and never felt as though we were being pushed into unnecessary services.I will certainly be reaching out to Terra Firma for any future needs!
I'd been putting off fixing our sunken garage for a few years. With the flooding seasons getting more and more distinct, it was time. i called a few places, and TerraFirma not only had the best resources to provide an accurate quote, they were also the best value. Both Sam during quotation and Zach during install did a great job balancing the needs of the solution with the status of the house, and in the end I couldn't be happier.I can't say I'm looking forward to having more foundation repair projects in the future. But in the event I do, I know where to go to.
As a residential broker in western WA I’m always interacting with different foundation & basement specialists. TerraFirma is the best I’ve come across. The team there, especially Seth, is top notch. I always get an accurate & reasonable solution from them regardless of the size of the job. I’m working with Seth on a project now & it’s been great. Highly recommend!
Very pleased with the work, from the beginning sales person visit to the ending follow-up chats, on the phone, about the work performed. We had a foundation...
Jake and his crew did a terrific job fixing the cracks in our foundation at a reasonable price. We would definitely use them again!
We had two companies come and provide evaluations of our foundation repair needs. TerraFirma was by far the most professional and responsive company. In the end we did not go with the lowest bid but we did go with the company that provided the most professional response and gave use the most confidence it would be done right. We were not disappointed 🙂
TerraFirma responded quickly to our call. Came out for a free evaluation of our foundation . Seth was very friendly, professional, and obviously well knowledgeable about his trade. Within 2 hours we had a very thorough assessment of our foundation. Thank you TerraFirma, and Seth.
Would highly recommend these fellas. Had two separate guys out to our place (Sam, and Tulane), and they both killed it. They gave us total peace of mind in moving into our new home. They assured us that there was a solution to our foundation problems and gave us an excellent quote on the project. Definitely planning to go with these guys for this project.
Had TerraFirma come to our home for estimate to level our drive way, which had been "leveled" 2x prior and failed, Turns out, in less than 1.5 yrs, our home fell forward 1.78 inches and cracked our foundation in 3 places... YIKES! The work got underway once permits came in, the 2 crews did an install of 4 piers indide our garage and leveled a driveway, walkway and entry steps.
Hands Down, we are beyond words Beyond expectations happy with our now Safe home!! If you need any of the services TerraFirma provides, hit me up... I will fill you in on how professional, respectful and knowledgeable their crews and staff are! In all 5 Star ratings, we wish we could give a 10+

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.