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Foundation, Crawlspace & Concrete Contractors in The Dalles, OR
Terrafirma in The Dalles, OR
At TerraFirma, we focus on safeguarding and improving the structural integrity of homes throughout Oregon and Washington. For years, we’ve proudly served homeowners in The Dalles, helping you tackle the unique climate and soil challenges of our area.
From a cracking foundation to a musty basement, a damp crawl space, or an uneven concrete slab, TerraFirma has the expertise, tools, and reliable solutions to restore your home in The Dalles and ensure it stays safe for years to come.
The Dalles’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 The Dalles
Foundation issues can lead to significant damage to your home if not taken care of. Signs like floor cracks, bowing walls, and sagging floors often indicate more serious structural concerns. Residents of The Dalles, OR may notice doors that stick, windows that struggle to close, or visible gaps between walls and ceilings. These symptoms could be warning you that your foundation is shifting due to soil movement, water damage, or the natural wear and tear of age.
At TerraFirma, we take pride in providing foundation repair solutions right here in The Dalles. Our expert team offers tailored strategies designed to address the specific issues affecting your foundation. We start with a thorough inspection to identify the root cause of the problem, and then we recommend one or more of our trusted foundation repair systems to ensure your home is secure.
Foundation piers
Our push and helical piers are expertly designed to stabilize and lift your foundation by redistributing its weight to deeper, more stable soil. Helical piers work best for known soil conditions, while push piers are the right choice for areas where soil stability is uncertain. Both systems are minimally invasive and provide lasting solutions for your home in The Dalles.
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, options for ongoing maintenance, and transferable warranties, providing you with confidence and peace of mind in your home here in The Dalles.
Basement Waterproofing The Dalles
Don’t let a wet basement become a problem in your home! In The Dalles, moisture can lead to mold, mildew, structural damage, and poor air quality. You might notice musty odors, stained walls, standing water, or efflorescence, which is that white, powdery residue left from evaporating water. Even a small crack in your basement wall can invite in moisture and create bigger issues down the line.
TerraFirma provides top-notch basement waterproofing solutions in The Dalles, ensuring your space stays dry, healthy, and functional—come rain or shine.
Crawl Space Repair The Dalles
Crawl spaces often go unnoticed, but they’re an essential part of your home’s structure and air quality here in The Dalles. If left unattended, a neglected crawl space can become a haven for mold, pests, and standing water. These problems can cause wood rot, unpleasant odors, and even health issues for your family.
We understand the crawl space conditions in The Dalles, OR, and TerraFirma’s repair services are tailored to tackle moisture, mold, pests, and sagging floors with comprehensive encapsulation, drainage solutions, 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 The Dalles 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 The Dalles
Cracked, damaged, or uneven concrete isn’t just an eyesore—it’s a safety risk. These issues can arise from factors like poor soil compaction, freeze-thaw cycles, erosion, or tree root growth. Residents of The Dalles trust us to quickly and effectively restore their concrete slabs, sidewalks, patios, and driveways.
TerraFirma provides quick, clean, and durable concrete leveling and repair solutions for The Dalles, OR, utilizing advanced polyurethane foam injection and effective crack sealing.
PolyLevel® Concrete Lifting
PolyLevel employs expanding polyurethane foam to lift and stabilize concrete slabs, offering a non-invasive solution that’s perfect for residents of The Dalles, OR who need support for their sidewalks, driveways, and patios.
- 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 The Dalles, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting The Dalles, OR
The Dalles, like much of the Pacific Northwest, is located in a region with seismic activity. Homes constructed before the updated building codes of the 1990s may be particularly at risk. Even a small earthquake can lead to homes shifting off their foundations or suffering significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your The Dalles home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home in The Dalles for earthquakes not only enhances safety but can also lead to lower insurance premiums and deductibles, plus you might qualify for coverage options that weren’t available before the upgrade.
How We Retrofit
Assessment & Planning
In The Dalles, the retrofitting process starts with a thorough assessment of your building’s condition. A qualified expert, like a structural engineer or trained technician, will examine your home to pinpoint any weaknesses and suggest the best solutions.
Our evaluation covers a thorough inspection of the foundation, walls, roof, and overall structure. After that, our engineer crafts a detailed retrofitting plan based on what we discover.
Foundation Bolting
Securing the foundation is the next step in keeping your home safe. Our technicians install anchor bolts to firmly connect your house to its foundation, helping to prevent lateral movement during an earthquake.
In this process, we carefully drill into the foundation and insert sturdy steel bolts. Our team tightens these bolts to reinforce the structure, improving its stability and ability to withstand seismic activity.
Adding Shear Walls
Shear walls play a vital role in earthquake retrofitting by helping to distribute seismic forces, ensuring that buildings in The Dalles stay safe and stable during tremors.
Shear walls, often made from plywood or other sturdy materials, are strategically installed in key areas of homes, especially in cripple walls. They enhance the support and stability of the walls, helping to reduce the risk of damage during an earthquake.
Bracing & Reinforcing
Next, we enhance key areas of your home in The Dalles with durable steel braces and straps. Our team installs these reinforcements on essential structural components like the roof, walls, and floors. This step boosts your home’s overall stability, ensuring it has a robust framework ready to withstand seismic forces.
Securing Applicances
Securing your appliances is key to creating a safer home in The Dalles. Anchoring essentials like water heaters and refrigerators is crucial. Our technicians will also install safeguards for gas meters to help 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 The Dalles Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in The Dalles 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 The Dalles, OR is unique, but TerraFirma has a solution for every challenge. Reach out 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.
The Dalles
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.
