Foundation, Crawlspace & Concrete Contractors in Warren, OR
Terrafirma in Warren, OR
“At TerraFirma, we’re dedicated to safeguarding and improving the structural integrity of homes right here in Warren, OR. With years of experience serving our community, we’ve helped many homeowners tackle the unique climate and soil challenges that come with living in our beautiful region.”
From a cracked foundation and a musty basement to a damp crawl space or an uneven concrete slab, TerraFirma has the know-how, the right tools, and reliable solutions to restore your Warren home and ensure its safety for years to come.
Warren’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 Warren
Foundation issues can lead to significant damage to your home if not taken care of. In Warren, OR, you might notice signs like floor cracks, bowing walls, and sagging floors, all of which could indicate more serious structural problems. Homeowners here may also experience sticky doors, windows that don’t close properly, or visible gaps between walls and ceilings. These are all potential signs that your foundation is shifting due to soil movement, water damage, or wear and tear over time.
At TerraFirma, we specialize in repairing foundations right here in Warren with expert solutions designed to address the specific causes of your foundation issues. Our process starts with a thorough inspection to identify the extent and source of the problem. From there, we recommend one or more of our trusted foundation repair systems to ensure your home is safe and secure.
Foundation piers
Our push and helical piers are designed to stabilize and elevate your foundation by transferring its weight to deeper, more stable soil. Helical piers are perfect for areas with predictable soil conditions, while push piers work best in places where soil stability is uncertain. Both options are minimally invasive and provide lasting solutions for your home in Warren.
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 can have confidence and peace of mind in your home in Warren.
Basement Waterproofing Warren
Having a wet basement in Warren, OR can lead to serious issues like mold, mildew, structural damage, and decreased air quality in your home. You might notice signs of water intrusion such as musty odors, stained walls, pooling water, or white powdery spots known as efflorescence, which appear when water evaporates. Even a tiny crack in your basement wall can turn into a significant source of moisture.
TerraFirma provides top-notch basement waterproofing solutions in Warren, ensuring your space stays dry, healthy, and functional—rain or shine.
Crawl Space Repair Warren
Crawl spaces in Warren, OR, are often forgotten, but they play a vital role in your home’s structure and air quality. If neglected, these spaces can become breeding grounds for mold, pests, and standing water. This can result in wood rot, unpleasant odors, and even respiratory problems for those living in your home.
We understand the crawl space challenges in Warren, OR, and TerraFirma’s repair services are tailored to tackle issues like moisture, mold, pests, and sagging floors. From full encapsulation to effective drainage and structural support, we’ve got you covered.

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 Warren 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 Warren
Cracked, chipped, or uneven concrete isn’t just an eyesore—it can also pose a safety risk. Issues like poor soil compaction, freeze-thaw cycles, erosion, or tree roots can lead to these problems. Residents of Warren trust us to swiftly and effectively repair their concrete slabs, sidewalks, patios, and driveways.
At TerraFirma, we provide rapid, clean, and durable concrete leveling and repair solutions in Warren, OR, using advanced polyurethane foam injection and crack sealing techniques.
PolyLevel® Concrete Lifting
PolyLevel utilizes expanding polyurethane foam to lift and stabilize concrete slabs. This straightforward method is perfect for the needs of Warren, OR residents:
- 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 Warren, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Warren, OR
Warren, OR, is situated in an area of the Pacific Northwest that is known for seismic activity. Homes built before the updated building codes enacted in the 1990s are particularly at risk. Even a small earthquake can lead to your home shifting off its foundation or suffering significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Warren home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home in Warren for earthquakes can lower your insurance premiums and deductibles, plus it might help you qualify for coverage that wasn’t available before the upgrade.
How We Retrofit
Assessment & Planning
In Warren, OR, the retrofitting process kicks off with a thorough assessment of your building’s current condition. An expert, like a structural engineer or a trained technician, will inspect your home to pinpoint any weaknesses and suggest the best solutions for improvement.
This evaluation involves a thorough inspection of the foundation, walls, roof, and overall structure. Afterward, our engineer creates a detailed retrofitting plan tailored to the findings.
Foundation Bolting
Strengthening the foundation is the next crucial step for homes in Warren, OR. Our skilled technicians install anchor bolts to securely connect your house to its foundation, helping to prevent any lateral movement during an earthquake.
In this process, we drill holes into the foundation and insert sturdy steel bolts. Our team then tightens these bolts, reinforcing the structure and boosting its stability against seismic activity.
Adding Shear Walls
In Warren, OR, shear walls play an essential role in earthquake retrofitting by helping to distribute seismic forces and keep your building standing strong.
In Warren, OR, shear walls are usually made from plywood or other durable materials and are strategically placed in homes, especially in areas with cripple walls. These essential structures offer extra support and stability, helping to minimize the risk of damage during an earthquake.
Bracing & Reinforcing
Next, we strengthen important areas of your home in Warren with sturdy steel braces and straps. Our team installs these reinforcements on key structural elements like the roof, walls, and floors. This crucial step enhances your home’s stability, creating a solid framework that can stand strong against seismic forces.
Securing Applicances
Securing your appliances creates a safer home for everyone in Warren, OR. It’s important to anchor items like water heaters and refrigerators. Our technicians can also install protective measures for gas meters to help minimize 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 Warren Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Warren 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 Warren, OR is unique—but 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.
Warren
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.