Free Estimate
Financing
Commercial Solutions
Maintenance
Bill Pay
Foundation, Crawlspace & Concrete Contractors in Kelso, WA
Terrafirma in Kelso, WA
At TerraFirma, we’re dedicated to protecting and improving the structural integrity of homes in Kelso and throughout Washington. For years, we’ve helped local homeowners tackle the unique climate and soil challenges of our region with reliable repair services.
From a cracked foundation and a musty basement to a damp crawl space or an uneven concrete slab, TerraFirma has the knowledge, tools, and reliable solutions to restore your Kelso home and ensure it stays safe for years to come.
Kelso’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 Kelso
Foundation problems can lead to significant damage to your home if not taken care of. In Kelso, WA, homeowners might notice signs like cracked floors, bowed walls, or sagging floors that point to serious structural issues. You may also find doors that stick, windows that won’t close right, or gaps between walls and ceilings—these could all indicate that your foundation is shifting due to soil movement, water damage, or simply the aging of your home.
At TerraFirma, we specialize in foundation repair in Kelso, offering expert solutions specifically designed to address the root causes of your foundation issues. We start with a thorough inspection to evaluate the extent and source of the problem, followed by personalized recommendations for our tried-and-true foundation repair systems:
Foundation piers
Our push and helical piers are designed to stabilize and lift your foundation by shifting its weight to deeper, more stable soil. Helical piers work best in known soil conditions, while push piers are great for areas where soil stability is uncertain. Both systems are minimally invasive and provide lasting solutions for your home in Kelso.
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, so you can enjoy confidence and peace of mind in your Kelso home.
Basement Waterproofing Kelso
Having a wet basement in Kelso can result in mold, mildew, structural issues, and poor air quality in your home. Water intrusion might manifest as musty odors, stained walls, standing water, or efflorescence—a white, powdery substance that appears when water evaporates. Even a tiny crack in your basement wall can turn into a significant gateway for moisture.
TerraFirma provides top-notch basement waterproofing solutions in Kelso, ensuring your space stays dry, healthy, and functional all year round—come rain or shine.
Crawl Space Repair Kelso
Crawl spaces in Kelso often get neglected, but they play a vital role in your home’s structure and air quality. If not taken care of, a neglected crawl space can attract mold, pests, and standing water. These issues can lead to wood rot, unpleasant odors, and even respiratory problems for you and your family.
We understand the unique crawl space challenges in Kelso, WA, and TerraFirma’s repair services are tailored to tackle issues like moisture, mold, pests, and sagging floors. Our solutions include full encapsulation, effective drainage, and reliable 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 Kelso 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 Kelso
Cracked, uneven, or damaged concrete can be more than just an eyesore—it can pose serious safety risks. Issues like poor soil compaction, freeze-thaw cycles, erosion, and tree root growth can lead to these problems. That’s why homeowners in Kelso trust us to repair their concrete slabs, sidewalks, patios, and driveways efficiently and effectively.
TerraFirma provides quick, tidy, and durable concrete leveling and repair services right here in Kelso, WA, 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 effective, non-invasive method is perfect for residents of Kelso, WA who need:
- 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 Kelso, WA for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Kelso, WA
Kelso, WA, is part of an active seismic region in the Pacific Northwest. Homes constructed before the updated building codes of the 1990s may be at greater risk. Even a small earthquake can lead to a house shifting off its foundation or sustaining significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Kelso home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home for earthquakes in Kelso can help lower your insurance premiums and deductibles, and it may even make you eligible for coverage that wasn’t available before the upgrade.
How We Retrofit
Assessment & Planning
In Kelso, WA, the retrofitting process starts with a thorough evaluation of your building’s condition. A skilled expert, like a structural engineer or a qualified technician, will examine 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. Following the assessment, our engineer will create a detailed retrofitting plan tailored to the findings.
Foundation Bolting
Next up in the process is securing the foundation. Our technicians will install anchor bolts to connect your home to its foundation, ensuring it stays stable and secure during an earthquake.
This process involves drilling into the foundation and installing steel bolts. Our team then tightens the bolts to reinforce the structure, boosting its stability and making it more resistant to seismic activity.
Adding Shear Walls
Shear walls are an essential part of earthquake retrofitting in Kelso, as they help distribute seismic forces and keep buildings standing strong.
In Kelso, WA, shear walls play a crucial role in home safety. Made from plywood or other sturdy materials, these walls are installed in key areas, especially in cripple walls, to enhance support and stability. They help protect your home by minimizing the risk of damage during an earthquake.
Bracing & Reinforcing
Next, we strengthen key areas of your Kelso home with sturdy steel braces and straps. Our team installs these essential supports on the roof, walls, and floors, enhancing your home’s stability and ensuring it has a robust framework built to withstand seismic forces.
Securing Applicances
By securing your appliances, you can ensure a safer living environment for everyone in your home. It’s important to anchor items like water heaters and refrigerators. Our technicians in Kelso 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 Kelso Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Kelso 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 Kelso, WA has its own unique characteristics—but TerraFirma is here to tackle any challenge you face. Reach out to us today for a free in-home estimate and learn how we can help enhance your home’s safety, health, and value for years to come.
Kelso
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.
