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

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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.

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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.

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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.

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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.

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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.

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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.

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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!


1. Foundation pier support - appears to be good work. 2. Earthquake retrofit - less than perfect on cutting into living spaces to attach hardware -...
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...
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.
Living in a 30-year-old home for the past two decades we've had several phases of upgrades, but one thing has always been absent from a 10x10 slab on our...
From free estimate to job completion, Terra Firma was a great, reliable company to work with. The no pressure estimate allowed us time to decide if / when we wanted our job done . After we decided to hire them the crew was fast, efficient and clean! They had photos of the completed job before and after (as I chose not to climb into the crawl space )and it looked stable, clean, and brand new! Very happy with Terra Firma and a job well done!
I got a bid done by TerraFirma today. After speaking with Seth today. He answered my hundreds of questions and cured and worries I had about foundation issue. He broke it down and explained the whole process from start to finish how to remedy my foundation problems. I like the fact that they were punctual. They were right on time at the scheduled appointment and wasted no time trying to figure out a solution for my problem. The prices He gave to me were really fair and the depth of knowledge was very useful. I feel very confident that TerraFirma should be able to fix my settling / cracked foundation problems.
Technician was on time, did an excellent job of explaining the work, quote was accurate, and am very happy with the results.
They worked together very well. Polite to me. Answered my questions has they were working. Cleaned up their "mess".
I’ve had a great experience with TerraFirma so far. Seth Cunningham is the tech that we have been working with, he has thoroughly explained the issues we are facing with our foundation and the steps we need to take to salvage our home. Although this is a blow to any homeowner, I trust that Terra Firma is going to get us back to where we need to be step by step. Communication has been top notch, and I feel confident we are in good hands…… update!!! The work was completed by the crew, they were so professional and nice. Got the job done and were even able to eliminate one of the jobs because they were able to make it work and they made me aware of a leaking pipe under the house I didn’t even know was there. Invaluable!!! This is a very good company to work with, I really am satisfied.
Work was done professionally, quality technicians.My complaint is with modifications that were made that should have reduced the labor, materials cost but no consideration was given for that.Full payment no negotiation.The amount of prep work that had to be done, the rebuilding that will be needed, the lack of resources to complete these tasks…I’m happy with the product, not so much the experience.
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