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Foundation, Crawlspace & Concrete Contractors in Portland, OR
Terrafirma in Portland, OR
At TerraFirma, we focus on safeguarding and strengthening the structural integrity of homes in Portland and throughout Oregon and Washington. For years, we’ve been proud to assist homeowners in the Rose City, helping them tackle the unique climate and soil challenges of our region.
From a cracking foundation to a musty basement, damp crawl space, or an uneven concrete slab, TerraFirma has the expertise, tools, and reliable systems to restore your Portland home and ensure its safety for years to come.
Portland’s TOP-RATED Foundation & Basement Contractors
Contact us at (866) 486-7196 or use the form to the right.
Hours: Monday – Friday, 8am-5pm
Foundation Repair Portland
Foundation problems can lead to significant damage to your home if not taken care of. Common signs include cracks in the floor, bowing walls, and sagging floors, all pointing to deeper structural issues. Homeowners in Portland, OR, may experience doors that stick, windows that don’t close quite right, or noticeable gaps between walls and ceilings. These could be indicators that your foundation is shifting due to soil movement, water damage, or simply the wear and tear that comes with age.
At TerraFirma, we provide expert foundation repair solutions specifically designed for the unique challenges of Portland, OR. Our process starts with a thorough inspection to identify the extent and source of your foundation issues. Once we’ve pinpointed the problem, we’ll recommend one or more of our trusted foundation repair systems tailored to meet your needs.
Foundation piers
At our Portland-based company, we provide expertly engineered push and helical piers to stabilize and lift your foundation by transferring its load to deeper, more reliable soil. Helical piers are perfect for areas with known soil conditions, while push piers are designed for locations with uncertain soil stability. Both systems are minimally invasive and deliver lasting solutions for your home’s foundation needs.
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 expert installation, flexible maintenance options, and transferable warranties, ensuring you have confidence and peace of mind in your home in Portland.
Basement Waterproofing Portland
Dealing with a wet basement in Portland? Don’t overlook the risks! Excess moisture can lead to mold, mildew, structural issues, and poor air quality throughout your home. Keep an eye out for musty odors, stained walls, pooling water, or efflorescence—those white, powdery marks that appear when water evaporates. Even a tiny crack in your basement wall can turn into a big problem for moisture intrusion.
TerraFirma provides top-notch basement waterproofing solutions in Portland, ensuring your space stays dry, healthy, and functional—come rain or shine.
Crawl Space Repair Portland
Crawl spaces are often forgotten, but they play a vital role in your home’s structure and air quality here in Portland. If left unmaintained, a neglected crawl space can become a breeding ground for mold, pests, and stagnant water. These issues can cause wood rot, unpleasant odors, and even respiratory problems for you and your family.
We understand the unique crawl space challenges in Portland, OR, and TerraFirma’s repair services are tailored to tackle moisture, mold, pests, and sagging floors with comprehensive encapsulation, effective drainage solutions, and sturdy structural support.
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.
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 Portland is crucial to maintaining your home’s overall health and energy efficiency.
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.
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.
Concrete Repair Portland
Damaged, cracked, or uneven concrete isn’t just an eyesore—it can also pose safety risks. Issues like poor soil compaction, freeze-thaw cycles, erosion, and tree root growth can all contribute to these problems. That’s why homeowners in Portland trust us to repair their concrete slabs, sidewalks, patios, and driveways swiftly and effectively.
TerraFirma provides quick, efficient, and durable concrete leveling and repair solutions in Portland, OR, using state-of-the-art polyurethane foam injection and crack sealing techniques.
PolyLevel® Concrete Lifting
PolyLevel utilizes expanding polyurethane foam to lift and stabilize concrete slabs. This non-invasive method is perfect for Portland homeowners 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 Portland, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Portland, OR
Much of the Pacific Northwest, including Portland, lies in an active seismic zone. Homes built before the updated building codes of the 1990s are particularly at risk. Even a minor earthquake can cause a home to shift off its foundation or suffer significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Portland home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home for earthquakes in Portland not only enhances safety but can also lower your insurance premiums and deductibles, plus help you qualify for coverage that may not have been available before the upgrade.
How We Retrofit
Assessment & Planning
The retrofitting process starts with a thorough assessment of your building’s current condition. A knowledgeable expert, like a structural engineer or trained technician, will inspect your home to pinpoint any weaknesses and suggest the best solutions.
This assessment involves a thorough inspection of the foundation, walls, roof, and overall structure. Based on the findings, our engineer will create a detailed retrofitting plan tailored to your needs.
Foundation Bolting
Securing the foundation is a crucial next step in the process. Our technicians install anchor bolts to firmly connect your home to its foundation, keeping it stable during an earthquake.
Our process involves drilling into the foundation and installing steel bolts. Our team then tightens these bolts to reinforce the structure, boosting its stability and resilience against seismic activity—perfect for our beautiful Portland landscape.
Adding Shear Walls
Shear walls play a vital role in earthquake retrofitting in Portland, helping to distribute seismic forces and keep buildings standing strong during a quake.
Shear walls, often made of plywood or other sturdy materials, are strategically installed in homes, especially in areas like cripple walls. They give extra support and stability to the structure, helping to minimize the risk of damage during an earthquake—essential for keeping Portland homes safe.
Bracing & Reinforcing
Next, we’ll strengthen key areas of your home using steel braces and straps. Our team installs these essential reinforcements on the roof, walls, and floors to enhance your home’s stability. This step ensures your home has a sturdy framework that can better withstand the seismic forces common in Portland.
Securing Applicances
Anchoring your appliances is key to creating a safer home for everyone in Portland. By securing your water heaters and refrigerators, you can help prevent accidents. Our technicians will also install safeguards for gas meters to reduce the risk of gas leaks.
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.
Secure Your Portland Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Portland 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 Portland, OR is unique—but TerraFirma has solutions for every challenge. Reach out to us today for a complimentary in-home estimate and discover how we can help make your home safer, healthier, and more valuable for years to come.
Portland
Homeowners Frequently Asked Questions
How does rain put my home at risk ?
SeaTac soils are impacted by heavy rains causing hydrostatic pressure. This leads to cracks in foundations and basements and may cause your foundation to settle or sink. Engineered support structures and comprehensive drainage systems are key to keeping your home dry, safe, and stable.
What’s the best way to repair concrete?
The NexusPro solution is a commercial grade joint sealant that offers several advantages over traditional concrete crack repairs. Its fast cure time (60 minutes) and performance under extreme temperatures makes it a perfect match for concrete repairs.
What types of cracks in my foundation or basement should I be concerned with?
Houses are susceptible to cracks in basements due to heavy rains and wet soils. Watch out for horizontal or stair step cracking along the foundation wall, diagonal cracks in the corners, crumbling walls and inward bulges.
How to fix a leaking basement floor?
If you have water coming through the floor or windows to your basement, the first step is installing a perimeter drain system. We can also install a direct drainage channel, which will help direct any water that comes through the crack into the drain and your sump pump.
Are you noticing damp drywall and carpet in your basement?
Musty smells, walls that feel damp to the touch, and ground-level leaks are all indicators that your basement may need to be waterproofed. Don’t wait until the next heavy rain to protect your home from water damage.
Which vapor barrier is best for weeping walls?
The VaporLoc Elite Wall System is better for weeping walls than other commonly used vapor barriers. The VLE system has double sealed seams, waterproof material (not water-resistant), and is much thicker than vapor barriers available at retail stores.
Can I turn my crawl space into storage?
TerraFirma offers comprehensive encapsulation solutions to keep your crawl space clean, dry, and secure from outside threats. Our industry-leading vapor barrier system keeps out destructive moisture while greatly improving your indoor air quality. In most homes, TerraFirma can even encapsulate your crawl space, giving you a clean, dry area suitable for storage.
How to repair damaged concrete?
While you could seal concrete with urethane caulk found at your local big-box DIY store, that is a solution that is prone to cracking, bubbling and drying out over time. The local experts at TerraFirma are here to help with long lasting solutions to level seal your unprotected joints and cracked concrete.
What is that bad smell coming up from my drain?
Unwanted air and gasses are coming up through your home’s drain system. A great fix is our TrenchLock™ drain insert that can be installed in an existing trench drain to allow water down without allowing air to come up. The system comes with balls that fit over the drainage holes, which create an airtight seal when there is no water.
What is the difference between helical piers and push piers?
Helical piers and push piers are both types of foundation repair methods, but they differ in their design and installation process. The choice between helical piers and push piers depends on factors such as soil conditions and structural requirements. Helical piers are often preferred in areas with weak or unstable soil conditions.
How long does basement waterproofing last?
TerraFirma-installed waterproofing systems are expected to last decades with regular care & maintenance. We also warranty our installations, our WaterGuard and DryTrak drainage systems come with a transferrable lifetime warranty. Terms apply, view the details here. We stand by our work and the quality of the systems we install.
