Free Estimate
Financing
Commercial Solutions
Maintenance
Bill Pay
Foundation, Crawlspace & Concrete Contractors in Corvallis, OR
TerraFirma in Corvallis, OR
At TerraFirma, we focus on safeguarding and strengthening the structural integrity of homes right here in Corvallis, OR. With years of experience, we’ve been proud to help local homeowners tackle the unique climate and soil challenges of our area.
From a cracking foundation and a musty basement to a damp crawl space or an uneven concrete slab, TerraFirma has the skills, equipment, and reliable solutions to restore your Corvallis home and ensure its safety for years to come.
Corvallis’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 Corvallis
Foundation issues can lead to significant damage to your home if not taken care of. Signs like cracks in the floors, bowing walls, and sagging floors may indicate deeper structural concerns. Residents of Corvallis, OR might find that doors are sticking, windows aren’t closing properly, or that there are noticeable gaps between walls and ceilings. These could all be signs that your foundation is shifting due to factors like soil movement, water damage, or natural aging.
At TerraFirma, we specialize in foundation repair in Corvallis, offering expert solutions designed specifically for the unique challenges your foundation may face. Our process starts with a thorough inspection to determine the root cause and extent of the issue. After that, we’ll recommend the best foundation repair systems tailored to your needs:
Foundation piers
In Corvallis, our push and helical piers are expertly designed to stabilize and lift your foundation by shifting its load to deeper, more solid soil. Helical piers work best in areas with known soil conditions, while push piers are ideal for regions with uncertain soil stability. Both options are minimally invasive and provide lasting solutions for your 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 professional installation, ongoing maintenance options, and transferable warranties, so you can have confidence and peace of mind in your Corvallis home.
Basement Waterproofing Corvallis
Dealing with a wet basement in Corvallis can bring a host of problems, including mold, mildew, structural issues, and reduced air quality in your home. You might notice signs of water intrusion such as musty odors, stained walls, pooling water, or efflorescence—a white, powdery substance left when water evaporates. Even a small crack in your basement wall can quickly become a significant pathway for moisture.
TerraFirma provides top-notch basement waterproofing solutions in Corvallis, ensuring your space stays dry, healthy, and functional rain or shine.
Crawl Space Repair Corvallis
Crawl spaces in Corvallis can easily be forgotten, but they play a vital role in your home’s structure and air quality. If left unaddressed, a neglected crawl space can become a breeding ground for mold, pests, and standing water. This can result in wood rot, unpleasant odors, and even health problems for those living in the home.
We understand the unique crawl space conditions in Corvallis, OR, and TerraFirma’s crawl space repair services are tailored to tackle moisture, mold, pests, and sagging floors. Our solutions include full encapsulation, effective drainage, and sturdy structural support.
Encapsulation & Drainage
We begin by sealing the crawl space with our Vapor Barrier 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.
- Crawl Space Access Well: An attractive, lockable access solution in several colors.
- Vent Covers: Sealing crawl space vents prevents outdoor air, moisture, and insects from entering.
Crawlspace repair in Corvallis 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 Basement 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 Corvallis
Don’t let damaged, cracked, or uneven concrete in Corvallis become a safety issue. These issues can arise from factors like poor soil compaction, freeze-thaw cycles, erosion, or tree roots. Local homeowners turn to us for fast and effective solutions to restore their sidewalks, patios, driveways, and concrete slabs.
TerraFirma provides quick, efficient, and durable concrete leveling and repair services in Corvallis, 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. This non-invasive method is perfect for Corvallis homeowners looking to repair:
- 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 Corvallis, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Corvallis, OR
Corvallis, like much of the Pacific Northwest, is located in a seismically active area. Homes built before the updated building codes of the 1990s may be particularly at risk. Even a minor earthquake could potentially cause a home to shift off its foundation or suffer serious structural damage.
TerraFirma’s earthquake retrofitting services help secure your Corvallis home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home for earthquakes in Corvallis can help lower your insurance premiums and deductibles, plus it might make you eligible for coverage that wasn’t available before the upgrades.
How We Retrofit
Assessment & Planning
In Corvallis, OR, the retrofitting process starts with a thorough assessment of your building’s current condition. A qualified expert, like a structural engineer or trained technician, will inspect 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. After that, the engineer will create a detailed retrofitting plan tailored to the findings.
Foundation Bolting
Ensuring your home’s foundation is stable is the next important step. Our technicians will install anchor bolts to securely connect your house to its foundation, helping to prevent any lateral movement during an earthquake.
This process involves drilling into the foundation and inserting steel bolts. Our team then tightens these bolts to strengthen the structure, improving its stability and making it more resilient to seismic forces.
Adding Shear Walls
Shear walls play a vital role in earthquake retrofitting by helping to distribute seismic forces, ensuring that buildings in Corvallis remain safe and sturdy.
Shear walls are usually made of plywood or other durable materials, carefully installed in key areas of your home, especially in cripple walls. They offer extra support and stability, helping to minimize the risk of damage during an earthquake here in Corvallis.
Bracing & Reinforcing
Next, we enhance the critical areas of your Corvallis home with sturdy steel braces and straps. Our team carefully installs these reinforcements on essential structural elements like the roof, walls, and floors. This vital step boosts your home’s overall stability, creating a strong framework designed to withstand seismic forces.
Securing Appliances
By securing your appliances, you can create a safer living environment for everyone in your Corvallis home. It’s important to anchor essential items like water heaters and refrigerators. Our technicians also provide installation of protective measures for gas meters to help reduce the risk of gas leaks.
Repairing 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 Corvallis Home Today
At TerraFirma, we’ve spent over 20 years helping homeowners in Corvallis 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 Corvallis, OR has its unique characteristics—but TerraFirma has a solution for every challenge. Reach out to us today for a free in-home estimate and learn how we can help make your home safer, healthier, and more valuable for years to come.
Corvallis
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 make 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?
Our heavy-duty wall vapor barrier system is better better for weeping walls than other commonly used vapor barriers. This Class 1 vapor barrier 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 Grated Trench 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 Basement Drainage System and Perimeter Drainage System come with a transferable lifetime warranty. Terms apply, view the details here. We stand by our work and the quality of the systems we install.
CENTRAL OREGON’S
Top Rated
FOUNDTION EXPERTS
NEAR YOU
Ask your neighbors why TerraFirma’s foundation, basement, and crawlspace work is top rated in Central Oregon. From Eugene to Corvallis, Springfield to Bend, and everywhere in between, our work speaks for itself!
