Foundation Repair in Portland, Roseburg, & Tacoma | Basement Waterproofing Company in OR & WA

Trusted to keep thousands of northwest homes
safe, dry, & stable

Foundation repair

Basement waterproofing

Crawl Space repair

Concrete Leveling
& Repair

Schedule A Free Evaluation

We are experts in:

tf expert icon1 Foundation Repair

Foundation Repair

Your home sends clear warning signs when its foundation is failing. Cracked or buckling walls, uneven floors, and stuck windows and doors are telling you that your foundation has been damaged. Let TerraFirma help you maintain your property value.

tf expert icon2 Foundation Repair


Clogged footing drains, hydrostatic pressure, soil settlement, and a cracking foundation are all common causes of water damage in the basement. Let TerraFirma help you restore your peace of mind.

tf expert icon3 Foundation Repair


Your crawl space can play host to a number of problems that affect the value of your home and your quality of life, from mold and pests to wood rot to poor air quality and more. Let TerraFirma help you increase your quality of life.

tf expert icon4 Foundation Repair


Cracked, uneven concrete around your home not only detracts from your home’s curb appeal and value, but it can also pose dangerous tripping hazards. Let TerraFirma help improve the safety of your property.

tf expert icon5 Foundation Repair


Many older homes in the Pacific Northwest have failing foundations that can buckle in an instant, and even minor seismic events can cause your home’s foundation to shift. Let TerraFirma help you ensure the safety of your home.

tf expert icon6 Foundation Repair


Structurally-strengthen, seismically improve, and waterproof your crumbling, bowed, and cracked basement walls with TerraFirma Wall Stabilization technologies. Retrofit – Reinforce – Restore. Our solutions are the answer for failing and deteriorating basement walls.

TF Beckley Ryan truck small Foundation Repair TF Beckley Ryan truck desk Foundation Repair

Our Commitment
to you

We are committed to providing industry leading solutions and a team that is professional, trained, empowered and transparent. Our goal is to deliver you an extraordinary customer experience. And we back up our work with the best warranties in the business.

Our ratings, reviews and thousands of referrals speak to our commitment to you, our valued customer.

That’s why TerraFirma has evolved into the Pacific Northwest’s industry leader in foundation, basement, crawl space and concrete repairs. We look forward to earning your business.

Contact us for a free estimate

Foundation repair company
in oregon and washington

Proudly Serving Portland, Vancouver, Tacoma, Seattle, Salem, Eugene, Roseburg, Bend & Nearby

Since 2005, TerraFirma has kept Portland homes dry, safe, and stable, offering tried and proven solutions for foundation settlement, wet basements, moisture in crawl spaces, uneven concrete, and other issues.

Cracked foundations, nasty crawl spaces, and musty basements can be a nuisance for homeowners. The good news is we offer free, on-site estimates to assess the damage and recommend a reliable solution. Plus, our solutions are customized to meet the needs of your home.

Looking for a trustworthy, experienced local professional to fix bowing walls, uneven floors, and gaps in the floor?

Look no further than TerraFirma. We have the experience and products to fix your foundation problems and more. Contact us online to schedule a free, on-site foundation repair estimate!


Terra Firma was really great to work with from our first meeting to the completion of the project. Hannah was our project designer, Kevin G. was our foreman, and Zach F. and Dorian assisted and all did a great job! Due to the cost of the project, we had to make a number of modifications along the way. And once they completed the demolition, they had to make another modification. However, their communication was great and they finished the project right on time and they did great, high quality work. I would definitely recommend Terra Firma for your basement issues.
I’ve always heard Terra Firma could repair sagging concrete on porches and they do. I couldn’t be happier with the results. Jonah our project manager was informative and although I might not like today’s prices it was less expensive than building a new deck. Ken and Dorian showed up on time, very professional, did a great job. After talking with Ken you could tell he had a lot of experience and it showed. I would Highly recommend using Terra Firma.
Everything was awesome. From the day they came promptly for the bid, they measured outside & under the house, answered our many questions to the day they came and did the job in less than one day - just as promised!Everything was awesome!
The crew showed up on time as stated in their bid. Did the work correctly and timely and then cleaned up before explaining what they did and installed. Much better experience than with the first contractor. More expensive, but you get what you pay for.
Fantastic work, great crew of people. They showed up on time, kept me informed of the progress throughout the job, went overboard to keep everything clean. I wish all companies were this professional about their work
Seth was knowledgeable, very experienced and the price was extremely reasonable. I had plenty of options to choose from. I also met with the competition and it felt like they were recruiting high schoolers to do their estimates.
TerraFirma is a fantastic company with great people! Seth was absolutely perfect! He did everything he could to help me! He answered all my questions and explained everything I asked in great detail. He was even able to get someone to come up all the way to Bremerton from the TerraFirma team in Oregon for my new radon mitigation system (the reason they don't usually do it here is because there is generally less need for radon systems here). Seth and TerraFirma are both a delight to work with!
I cannot express enough how grateful I am for the exceptional service provided by Seth and the team at TerraFirma Foundation Systems. We were facing a daunting challenge with standing water underneath our house, and Seth guided us through the entire process with professionalism, expertise, and genuine kindness.From the moment Seth arrived, it was evident that he was not only knowledgeable but also deeply passionate about resolving our issue. His expertise in dealing with water problems beneath homes was evident, and he took the time to thoroughly assess our situation (and got plenty dirty doing it) before presenting us with a comprehensive solution. He patiently answered all of our questions, alleviating any concerns we had along the way. It was clear that he genuinely cared about finding the best possible outcome for us.Consider this company, it'll be worth your time!
1. Foundation pier support - appears to be good work. 2. Earthquake retrofit - less than perfect on cutting into living spaces to attach hardware -...
Very professional, prompt, friendly and good work. TerraFirma was a great company to work with as they made every appointment, completed the job well, and explained everything.
?ad log=referer&action=lead&pixid=2ed8bf22 e241 49f1 a0cf 6971a12e4fb2 Foundation Repair

Proudly serving
oregon & washington

Enter your Zip Code to be redirected to
your local Service Area

TF service map mobile Foundation Repair TF service map 01 Foundation Repair Tacoma, WA Vancouver, WA Portland, OR Roseburg, OR