TerraFirma Foundation Systems

Wilsonville, OR

Foundation, Crawlspace & Concrete Contractors in Wilsonville, OR

Terrafirma in Wilsonville, OR

“At TerraFirma, we’re dedicated to safeguarding and enhancing the structural integrity of homes in Wilsonville and throughout Oregon and Washington. With years of experience, we have helped countless homeowners in Wilsonville tackle the area’s distinct climate and soil challenges.”

From a cracking foundation and a musty basement to a damp crawl space and an uneven concrete slab, TerraFirma has the know-how, tools, and reliable solutions to restore your Wilsonville home and ensure it stays safe for years to come.

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Wilsonville’s TOP-RATED Foundation & Basement Contractors

Contact us at (866) 486-7196 or use the form to the right.

Hours: Monday – Friday, 8am-5pm

    View our privacy policy for more information

    Foundation Repair Wilsonville

    Foundation issues can lead to significant damage to your home if not taken care of. In Wilsonville, OR, homeowners may see signs like floor cracks, bowing walls, and sagging floors, all of which can indicate deeper structural concerns. You might also notice sticking doors, windows that won’t close correctly, or gaps appearing between your walls and ceilings. These issues could be signals that your foundation is shifting due to soil movement, water damage, or natural wear over time.

    At TerraFirma, we specialize in foundation repairs right here in Wilsonville, offering expert solutions that address the specific issues causing your foundation concerns. Our process starts with a thorough inspection to identify the extent of the problem and its root cause. After that, we’ll recommend the best foundation repair systems tailored to your needs:

    Foundation piers

    Our push and helical piers are designed to stabilize and lift your foundation by transferring its weight to deeper, more stable soil. Helical piers work great for well-known soil conditions, while push piers are the go-to solution for areas with uncertain soil stability. Both methods are minimally invasive and provide long-lasting solutions right here in Wilsonville, OR.

    Wall Stabilization Systems

    For cracked, bowing, or leaning walls, we offer a suite of reinforcement products. These include:

    • CarbonArmor®: Made from fiber-reinforced polymers ten times stronger than steel.
    • PowerBrace®: Zinc-plated steel beams that can be tightened over time.
    • GeoLock® Anchors and Helical Tiebacks: These systems halt inward movement and gradually straighten walls over time.
    • EverBrace™: Designed for severely deteriorated walls, this system replaces and reinforces failing foundation walls with steel supports.

    We also offer grouted micropile tiebacks for difficult soil conditions, SmartJack® crawl space support posts for sagging floors, and vapor barriers to manage humidity and prevent further moisture damage.

    Every solution comes with professional installation, ongoing maintenance options, and transferable warranties, ensuring you feel confident and at ease in your Wilsonville home.

    Basement Waterproofing Wilsonville

    Dealing with a wet basement in Wilsonville? It can cause mold, mildew, structural issues, and impact your home’s air quality. You might notice musty odors, stained walls, pooling water, or efflorescence—a white, powdery residue that appears when water evaporates. Even a tiny crack in your basement wall can turn into a significant gateway for moisture.

    TerraFirma provides top-notch basement waterproofing solutions in Wilsonville, ensuring your space stays dry, healthy, and functional—whatever the weather brings.

    We create tailored drainage systems that divert water away from your basement and into sump pumps, safeguarding your foundation in Wilsonville.

    WaterGuard®: Our most popular system, it’s installed below the floor slab and above the footing to prevent clogging.
    DryTrak®: Ideal for monolithic foundations where jackhammering is not feasible.
    FlowGuard®: A thin-floor drain system used in basements with thin concrete slabs.
    TrenchLock™ Inserts: Block ground air from entering while allowing water to drain.

    We offer several sump pump options tailored to your water exposure:

    TripleSafe™: Three-pump system for maximum protection, including battery backup for power outages.
    UltraSump®: High-capacity battery backup pump that activates when the main pump fails or power goes out.
    SuperSump®: A single-pump system for homes with minor water issues.

    VaporLoc Elite: A heavy-duty wall liner that stops moisture and mold while directing water into drainage systems.
    SaniDry Sedona & XP: Energy-efficient dehumidifiers that remove up to 109 pints of moisture daily, improving air quality and comfort.

    Our SunHouse™ Window Wells and WellDuct® Drains keep your basement bright, dry, and free from debris, while meeting egress codes for safety.

    Waterproofing in Wilsonville, OR not only safeguards your investment but also turns your basement into a secure and functional extension of your home.

    Crawl Space Repair Wilsonville

    Don’t overlook your crawl space! It’s an essential part of your home’s structure and air quality here in Wilsonville. If left unmaintained, a neglected crawl space can become a breeding ground for mold, pests, and standing water. These issues can lead to wood rot, unpleasant odors, and even respiratory problems for your family.

    We understand the crawl space conditions specific to Wilsonville, OR, and TerraFirma’s repair services are here to help. Our solutions tackle moisture, mold, pests, and sagging floors through complete encapsulation, drainage, and structural support.

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    Encapsulation & Drainage

    We begin by sealing the crawl space with our VaporLoc Elite liner, a 120-mil thick waterproof barrier that blocks moisture, soil gases, and allergens. To ensure proper drainage:

    • We use drainage matting under the liner to guide water to your perimeter drain or sump pump.
    • Sump pumps remove water quickly and efficiently, even during heavy rain or high water table conditions.
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    Crawl Space Entry & Vent Solutions

    • EverLast™ Doors & Access Wells: Waterproof, durable entry systems that keep out pests and moisture.
    • Turtl™ Access Well: An attractive, lockable access solution in several colors.
    • Vent Covers: Sealing crawl space vents prevent outdoor air, moisture, and insects from entering.

    Crawlspace repair in Wilsonville is crucial to maintaining your home’s overall health and energy efficiency.

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    Structural Repairs

    To support sagging or weak floor joists, our SmartJack® Support Posts offer adjustable, galvanized steel columns that restore floor stability. These are fast to install and offer permanent results.

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    Dehumidifiers & Monitoring

    Install a SaniDry Sedona dehumidifier to maintain healthy humidity levels year-round. For added security, our ShipShape™ System offers 24/7 performance monitoring, proactive maintenance alerts, and remote control of your crawl space systems.

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    Concrete Repair Wilsonville

    Damaged, cracked, or uneven concrete can be more than just an eyesore; it’s a safety concern. Issues like poor soil compaction, freeze-thaw cycles, erosion, or tree root growth can lead to these problems. Residents of Wilsonville trust us to restore their concrete slabs, sidewalks, patios, and driveways quickly and effectively.

    TerraFirma provides quick, efficient, and durable concrete leveling and repair services in Wilsonville, OR, utilizing cutting-edge polyurethane foam injection and expert crack sealing.

    PolyLevel® Concrete Lifting

    PolyLevel utilizes expanding polyurethane foam to lift and stabilize concrete slabs with ease. This non-invasive solution is perfect for residents of Wilsonville, OR, looking to:

    • Sidewalks – Eliminates tripping hazards and restores smooth walkways.
    • Driveways – Prevents further cracking and improves curb appeal.
    • Patios, Porches, and Pool Decks – Ensures proper drainage and surface stability.

    NexusPro™ Crack & Joint Sealant

    To prevent water intrusion that can lead to further sinking, we apply NexusPro, a UV-resistant silicone-based joint sealant that:

    • Cures in just 60 minutes.
    • Withstands extreme weather and heavy use.
    • Includes color-matched sand for a clean, polished look.

    SealantPro™ Concrete Protection

    After sealing and lifting your concrete, SealantPro provides a long-term barrier against moisture, chemicals, and seasonal temperature changes. It penetrates deep into concrete to resist stains, flaking, and surface erosion.

    We also provide commercial concrete repair in Wilsonville, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.

    Earthquake Retrofitting Wilsonville, OR

    Here in Wilsonville, OR, much of our beautiful Pacific Northwest is located in an active seismic zone. Homes built before the updated building codes of the 1990s may be at greater risk. Even a minor earthquake can lead to significant issues, like shifting off foundations or serious structural damage.

    TerraFirma’s earthquake retrofitting services help secure your Wilsonville home to its foundation and strengthen its ability to withstand seismic events.

    Earthquake retrofitting in Wilsonville not only enhances your home’s safety but can also help lower your insurance premiums and deductibles, plus may even qualify you for coverage options that weren’t available before the upgrade.

    How We Retrofit

    Assessment & Planning

    In Wilsonville, the retrofitting process starts with a thorough evaluation of your building’s current condition. A skilled professional, like a structural engineer or a qualified technician, will assess your home to pinpoint any weaknesses and suggest the best solutions.

    This evaluation involves a thorough inspection of the foundation, walls, roof, and overall structure. Afterward, our engineer will create a detailed retrofitting plan tailored to the findings.

    Foundation Bolting

    Securing the foundation is the next crucial step in the process here in Wilsonville. Our technicians install anchor bolts to firmly connect your home to its foundation, ensuring stability and preventing lateral movement during an earthquake.

    Our process involves carefully drilling into the foundation and installing sturdy steel bolts. Our team then tightens these bolts to reinforce the structure, boosting its stability and making it more resistant to potential seismic activity.

    Adding Shear Walls

    In Wilsonville, shear walls play a vital role in earthquake retrofitting by helping to distribute seismic forces and keeping your home safe from collapse.

    Shear walls are usually made from plywood or other sturdy materials, and they are strategically placed in key areas of your home, especially in cripple walls. These walls enhance support and stability, helping to minimize the risk of damage during an earthquake.

    Bracing & Reinforcing

    Next, we focus on strengthening key areas of your home in Wilsonville by adding steel braces and straps. Our team expertly installs these reinforcements to essential structural elements like the roof, walls, and floors. This crucial step enhances your home’s stability, creating a robust framework designed to withstand seismic forces.

    Securing Applicances

    Securing your appliances can help create a safer home for everyone in Wilsonville. It’s important to anchor items like water heaters and refrigerators to prevent them from tipping over. Our technicians can also install safety measures for gas meters, minimizing the risk of gas leaks and ensuring peace of mind for you and your family.

    Reparing Foundations

    During retrofitting, technicians may notice substantial foundation damage that needs immediate repair. Adding crawl space support posts and foundation piers, and stabilizing the walls are some of the ways TerraFirma can reinforce your foundation.

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    Secure Your Wilsonville Home Today

    At TerraFirma, we’ve spent over 20 years helping homeowners in Wilsonville and across the Pacific Northwest protect their homes from the ground up. From foundation repair and basement waterproofing to crawl space encapsulation, concrete leveling, and earthquake retrofitting, our team delivers top-tier craftsmanship with trusted products, proven systems, and lasting warranties.

    Every home in Wilsonville, OR has its unique qualities—and TerraFirma has a solution for every challenge. Reach out to us today for a free in-home estimate and find out how we can help make your home safer, healthier, and more valuable for years to come.

    Wilsonville
    Homeowners
    Frequently Asked Questions

    How does rain put my home at risk ?

    What’s the best way to repair concrete?

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

    How to fix a leaking basement floor?

    Are you noticing damp drywall and carpet in your basement?

    Which vapor barrier is best for weeping walls?

    Can I turn my crawl space into storage?

    How to repair damaged concrete?

    What is that bad smell coming up from my drain?

    What is the difference between helical piers and push piers?

    How long does basement waterproofing last?


    Why is
    TerraFirma
    the Top Rated Foundation Expert in Oregon?

    From Portland to Beaverton, Salem to Lake Oswego, and all across the region, our experts consistently deliver durable, reliable foundation, basement, and crawlspace solutions. Check out these homeowner stories from your neighbors.

    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!
    Edit:
    Jan ‘26
    Unfortunately this sump pump did not solve the problem after all, as water again came in after several days of hard rain. To be fair, TF did not guarantee a solution. I still think it is a good company but sadly my problem persists.

    Previous review from Nov 25 -

    Terra Firma installed a sump pump in my home that has solved my water incursion issues. This had been a problem for months. I had several different companies and professionals out to evaluate and try to solve the problem, from plumbers to leak detection companies and a few more. Most scratched their heads and said "this is a mystery." Terra Firma came up with this solution and it is working. I wanted to wait until we had significant rain to write this review - and after the past few days of pretty good rain, and no water coming in - I feel confident that the problem was solved. They were helpful, considerate and creative. They didn't try to sell me more than was needed. I recommend Terra Firma.
    Tyler came out and did a great job of thoroughly going through the house and taking measurements and pictures to document what need attention. He walked me through options and gave his recommendations. While I had other bids, he kept in contact and checked in to see if I needed anything else. He did a great job working with my unique situation, never pressuring me to go in any other direction then what I comfortable with.

    Then Victoria was great is getting everything set-up and connecting me to the crew that would be out to work on the project. They were there promptly the day as scheduled, which I appreciated.
    They did a great job of walking me through the process and explaining everything that needed to be done while I was working.

    They were fast and communicated clearly throughout the process and made sure I was there when they finished up. They cleaned up better then I expected considering they had to dig up a lot of soil and replaced the fence without it even looking like it was moved. I was able to get back the 1/2 an inch or so back from the chimney moving away from the house, so I was very happy about that! I would highly recommend them again and if I need the house foundatio repaired, would definitely call them back.

    Time will tell if everything stays where it is, but so far it's been a wonderful experience. They were competitively priced but seemed like they wanted my business more then the others and made me feel valued.
    These guys were great! Aris, Rom and Scotty showed up on time, cleaned up after themselves and communicated well during the project.
    Giovanni and his crew were very professional. They showed up on time both days and got the job done on schedule. Giovanni carefully reviewed with us the work to be done before starting. At the completion on the job he reviewed what they had done. Giovanni was great to work with. He was very personable and had excellent communication skills.
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    regina ..
    Schyler did a fantastic job. He answered all the questions while here, he was knowledgeable and efficient. It was a pleasure having him do the work.

    Ron
    Prices in line with other estimates, amazing customer service!
    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.
    We were impressed with the crew that worked on our crawl space. They kept us informed about what was happening each day. They were respectful of our property and privacy. We would highly recommend TerraFirma.
    Terra Firma has done a very nice job! The work was professionally completed. They were thorough and communicative. They walked me through all the details as they went and cleaned up well when they were completed. Very nice work!

    Schedule your free
    Foundation Evaluation

    Schedule your free
    Foundation Evaluation