Expert Foundation, Crawl Space, & Concrete Repair | Portland, OR & Vancouver, WA

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Expert Foundation and Basement Repair near Portland and Vancouver

Situated in the Pacific Northwest, Portland and Vancouver share
similar weather conditions and rain showers throughout the year.
These rains, while nourishing the landscapes of the region, are
constantly testing your drainage system and making basement
waterproofing a priority.

Despite the prevalence of rain, the climate in Portland and
Vancouver also offer plenty of sunny days. Nearby cities like
Hillsboro, Beaverton and Oregon City, also sit in an area where
soils can expand significantly (expansive soils) when they
absorb water and contract when they dry out.

This cycle of expansion and contraction can put pressure on
foundations, leading to cracks and structural damage over time.

Concrete Driveway & Sidewalk Lifting & Leveling in Portland,
Tigard, and Beaverton

Portland’s damp climate can lead to sunken driveways, cracked or uneven sidewalk slabs, deck and patio deterioration, and more. Many homeowners are surprised that concrete can be lifted and leveled with much less cost and hassle than removing and replacing cracked or uneven concrete.

TerraFirma’s PolyLevel polyurethane foam solution has successfully lifted and leveled concrete slabs throughout Hillsboro, Tigard, the Dalles, Vancouver, and Longview.

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Some of the most requested Foundation
Services In Beaverton, Vancouver, & Clackamas

Homeowners Frequently Asked Questions

What types of cracks in my foundation or basement should I be concerned with?

How to fix a leaking basement floor in Portland?

Are you noticing damp drywall and carpet in your basement?

How to stop bad smells and air coming up from my drain?

What are the soil conditions in Portland and Tigard?

How to repair damaged concrete in Portland?

What’s the best way to repair concrete?

What are common crawl space problems in Portland?

Can I turn my crawl space into storage?

What’s the right drain for your needs?

What is the difference between helical piers and push piers?


We offer free inspections to homeowners throughout Multnomah and Clackamas County. Contact us today and make sure your
home is in top shape!

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At TerraFirma we take pride in our work! We are trusted and referred by homeowners since 2005, to provide solutions for home foundations, basement and crawl space moisture, concrete leveling, and earthquake retrofitting.

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Google Rating
Based on 617 reviews
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Portland, Or

Don’t take our word for it – see what our clients have to say.
From Vancouver to Beaverton, Gresham to Clackamas, and throughout the Portland area, our work speaks for itself.

We lost power for 7 days & our battery backup for the sump pump didn't miss a beat!
The project was completed as described and the crew very professional. The cost I think, was reasonable. The only thing that was not clear after the initial assessment and explanation of the project was that not only would the drywall would be removed, but also the framing studs and floor plate. This added to the cost because those needed to be replaced by another contractor.
With a water floored basement, we contacted Terra Firma to locate the water source which they did in no time. They explained, in detail, what would be done to fix the problem and went to work. They were respectful of our furnishings covering to protect them from limited dust. They were professional and the project was completed on time. We are very satisfied with the end result, quality of workmanship, and price. We would recommend them for foundation work of any type.
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...
The company did good work. This is the second time we have used these services. Price has almost doubled in five years. Getting expensive!
I had Terrafirma come out to repair my broken and cracked patio. Ken Lomax and Dorian McDonald were fantastic. They were communicative, did great work and...
The guys were fantastic. Any requests I made were immediately address in the most professional manner. I love my house now. Neither my husband nor myself have had respiratory issues like before we had Terra Firma seal our foundation and add the dehumidifier. The best part is that I don’t have to empty the dehumidifier and my house is dry now. I would totally recommend this service!!’
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 🙂
had leveling and damp under home issues. They completed work and are always quick to answers all concerns or questions. Thank you Terra Firma staff
Our house is built in the SW hills of Portland originally in 1938, with a 2003 addition. TerraFirma waterproofing product has been a significant update to a...


We know and love Portland, even after crawling into musty crawlspaces and wet basements for over 20 years.
Check out these helpful homeowner tips for Portlanders, and some great Before/After galleries of our work in PDX.

Schedule your free
Foundation Evaluation

Schedule your free
Foundation Evaluation