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Foundation, Crawlspace & Concrete Contractors in St. Helens, OR
Terrafirma in St. Helens, OR
At TerraFirma, we focus on strengthening and safeguarding homes throughout Oregon and Washington. For years, we’ve proudly served homeowners in St. Helens, helping them tackle the unique climate and soil challenges of our region.
From a solid foundation to a musty basement, a damp crawl space, or an uneven concrete slab, TerraFirma has the know-how, tools, and reliable solutions to restore your St. Helens home and ensure it stays safe for years to come.
St. Helens’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 St. Helens
Foundation issues can lead to significant damage to your home if not taken care of. In St. Helens, OR, you might notice signs like cracked floors, bowing walls, or sagging floors, which often indicate deeper structural problems. Homeowners may also experience sticking doors, windows that don’t close right, or visible gaps between walls and ceilings. These issues can be signs that your foundation is shifting due to soil movement, water damage, or the natural aging process of your home.
At TerraFirma, we specialize in foundation repair right here in St. Helens, offering expert solutions designed to address the specific causes of your foundation issues. We start with a thorough inspection to identify the extent and source of the problem. From there, we’ll recommend the best foundation repair systems tailored to your needs:
Foundation piers
At our St. Helens location, our push and helical piers are expertly designed to stabilize and lift your foundation by transferring its weight to deeper, more reliable soil. Helical piers work best in areas with known soil conditions, while push piers are the ideal choice for spots with uncertain soil stability. Both systems are minimally invasive and provide long-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 expert installation, ongoing maintenance options, and transferable warranties, providing you with confidence and peace of mind right here in St. Helens.
Basement Waterproofing St. Helens
Don’t let a wet basement put your St. Helens home at risk for mold, mildew, structural issues, and poor air quality. You might notice signs of water intrusion like musty odors, stained walls, pooling water, or efflorescence—a white, powdery residue left when water evaporates. Even a tiny crack in your basement wall can open the door for serious moisture problems.
TerraFirma provides top-notch basement waterproofing solutions in St. Helens, ensuring your space stays dry, healthy, and functional, come rain or shine.
Crawl Space Repair St. Helens
“Many people in St. Helens overlook their crawl spaces, but these areas play a vital role in your home’s structure and air quality. If not properly maintained, a neglected crawl space can become a breeding ground for mold, pests, and standing water. This can lead to wood rot, unpleasant odors, and even respiratory problems for those who live in the home.”
We understand the crawl space conditions unique to St. Helens, OR. That’s why TerraFirma offers specialized crawl space repair services to tackle moisture, mold, pests, and sagging floors with comprehensive solutions like full encapsulation, drainage, and 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 St. Helens 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 St. Helens
Damaged, cracked, or uneven concrete isn’t just an eyesore—it poses a safety risk as well. Issues like poor soil compaction, freeze-thaw cycles, erosion, or tree root growth can lead to these problems. Residents of St. Helens trust us to swiftly and effectively repair their concrete slabs, sidewalks, patios, and driveways.
TerraFirma provides St. Helens homeowners with quick, reliable, and durable concrete leveling and repair services using cutting-edge 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 residents of St. Helens, OR who are dealing with:
- 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 St. Helens, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting St. Helens, OR
St. Helens, OR, is located in an area known for its seismic activity. Homes constructed before the updated building codes of the 1990s may be particularly at risk. Even a minor earthquake can lead to homes shifting off their foundations or suffering significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your St. Helens home to its foundation and strengthen its ability to withstand seismic events.
Earthquake retrofitting in St. Helens not only helps protect your home but can also lower your insurance premiums and deductibles, while potentially qualifying you for coverage options that weren’t available before the upgrade.
How We Retrofit
Assessment & Planning
In St. Helens, the retrofitting process kicks off 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 covers 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 the next important step in the process. Our skilled technicians install anchor bolts that connect your home to its foundation, helping to prevent any lateral movement during an earthquake here in St. Helens.
This process involves drilling into the foundation and inserting steel bolts. Our team tightens these bolts to reinforce the structure, boosting its stability and making it more resilient against seismic activity.
Adding Shear Walls
Shear walls are an essential part of earthquake retrofitting in St. Helens, OR, as they help distribute seismic forces and keep buildings standing strong during tremors.
Shear walls are usually made from durable materials like plywood, and in St. Helens, our skilled workers install them in key areas of your home, especially in cripple walls. These walls enhance structural support and stability, helping to minimize the risk of damage during an earthquake.
Bracing & Reinforcing
Next, we’ll secure essential parts of your home in St. Helens with sturdy steel braces and straps. Our team installs these reinforcements to key structural elements like the roof, walls, and floors. This important step boosts the overall stability of your home, giving it a strong framework designed to handle seismic activity.
Securing Applicances
Securing your appliances can help create a safer home for everyone in St. Helens. It’s important to anchor items like water heaters and refrigerators, and our technicians can also install protective measures for gas meters to 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 St. Helens Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in St. Helens 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 St. Helens, OR is unique—but TerraFirma has the perfect solution for every challenge you face. 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.
St. Helens
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.
