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Foundation, Crawlspace & Concrete Contractors in Chehalis, WA
Terrafirma in Chehalis, WA
At TerraFirma, we take pride in safeguarding and improving the structural integrity of homes in Chehalis and throughout Washington. For years, we’ve supported homeowners in navigating the unique climate and soil challenges of our region.
From a cracked foundation to a musty basement, a damp crawl space, or an uneven concrete slab, TerraFirma has the experience, tools, and reliable solutions to restore your Chehalis home and ensure its safety for years to come.
Chehalis’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 Chehalis
Foundation problems can lead to significant damage to your home if not taken care of. If you’re in Chehalis, WA, you might see signs like cracks in your floors, bowed walls, or sagging floors—these are often indications of more serious structural issues. Keep an eye out for doors that stick, windows that won’t close properly, or noticeable gaps between your walls and ceilings. These could all point to foundation shifts caused by soil movement, water damage, or the wear and tear of aging.
At TerraFirma, we provide expert foundation repair solutions right here in Chehalis. We start with a thorough inspection to identify the root cause of your foundation issues, ensuring our approach is tailored to your specific needs. From there, we recommend the most effective foundation repair systems to get your home back on solid ground.
Foundation piers
Our push and helical piers are designed to stabilize and lift your foundation by transferring its weight to deeper, more stable soil. Helical piers work best in areas with known soil conditions, while push piers are great for locations with uncertain soil stability. Both options are minimally invasive and provide lasting solutions for your foundation needs in Chehalis.
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 Chehalis home.
Basement Waterproofing Chehalis
Experiencing a wet basement in Chehalis can result in mold, mildew, structural issues, and poor air quality in your home. Signs of water intrusion might include musty odors, stained walls, standing water, or efflorescence—a white, powdery residue left behind when water evaporates. Even the tiniest crack in your basement wall can turn into a significant source of moisture.
TerraFirma provides expert basement waterproofing solutions in Chehalis, ensuring your space stays dry, healthy, and functional—rain or shine.
Crawl Space Repair Chehalis
Crawl spaces in Chehalis often go unnoticed, but they’re essential for maintaining your home’s structure and air quality. If neglected, these areas can develop problems like mold, pests, and standing water. This can result in wood rot, unpleasant smells, and even respiratory issues for those living in the home.
At TerraFirma, we understand the unique crawl space challenges faced by homeowners in Chehalis, WA. That’s why our crawl space repair services are specifically designed to tackle issues like moisture, mold, pests, and sagging floors through comprehensive encapsulation, effective drainage solutions, and robust 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 Chehalis 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 Chehalis
Cracked, damaged, or uneven concrete isn’t just an eyesore—it can also be a safety risk. These issues often arise from factors like poor soil compaction, freeze-thaw cycles, erosion, or tree roots. That’s why homeowners in Chehalis trust us to quickly and effectively repair their concrete slabs, sidewalks, patios, and driveways.
TerraFirma provides quick, clean, and durable concrete leveling and repair services in Chehalis, WA, utilizing cutting-edge polyurethane foam injection and expert crack sealing.
PolyLevel® Concrete Lifting
PolyLevel employs expanding polyurethane foam to lift and stabilize concrete slabs. This non-invasive solution is perfect for residents of Chehalis, WA, who are looking to:
- 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 Chehalis, WA for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Chehalis, WA
Chehalis, WA, is situated in a region of the Pacific Northwest that lies within an active seismic zone. Homes built before the updated building codes of the 1990s may be particularly at risk. Even a small earthquake can lead to a house shifting off its foundation or suffering significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Chehalis home to its foundation and strengthen its ability to withstand seismic events.
Upgrading your home with earthquake retrofitting in Chehalis can lower your insurance premiums and deductibles, plus help you qualify for coverage that wasn’t available before!
How We Retrofit
Assessment & Planning
In Chehalis, the retrofitting process starts with a thorough evaluation of your building’s current condition. Our experts, including structural engineers and trained technicians, will inspect your home to pinpoint any weaknesses and suggest the best solutions for improvement.
Our evaluation in Chehalis covers a thorough inspection of the foundation, walls, roof, and overall structure. After that, our engineer creates a detailed retrofitting plan tailored to the findings.
Foundation Bolting
Ensuring the stability of your home is the next essential step. Our technicians install anchor bolts that securely connect your house to its foundation, helping to prevent any lateral movement during an earthquake.
Our process includes drilling holes into the foundation and inserting sturdy steel bolts. Our skilled team then tightens these bolts to strengthen the structure, increasing its stability and improving its resistance to seismic activity right here in Chehalis.
Adding Shear Walls
In Chehalis, WA, shear walls play a vital role in earthquake retrofitting by effectively distributing seismic forces and helping to prevent structural collapse.
Shear walls are commonly made from plywood or other durable materials and are strategically installed in key areas of your home, especially in cripple walls. These walls offer extra support and stability, helping to minimize the risk of damage during an earthquake, which is important for residents in Chehalis, WA.
Bracing & Reinforcing
Next, we’ll strengthen the crucial areas of your Chehalis home with steel braces and straps. Our team installs these onto key structural elements like the roof, walls, and floors, enhancing your home’s overall stability and ensuring it has a robust framework to withstand seismic forces.
Securing Applicances
Securing your appliances can help create a safer home for you and your family in Chehalis. It’s important to anchor items like water heaters and refrigerators to prevent accidents. Our technicians also provide protection 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 Chehalis Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Chehalis 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 Chehalis, WA is unique, and TerraFirma has solutions tailored to your specific needs. Reach out to us today for a complimentary in-home estimate, and learn how we can help make your home safer, healthier, and more valuable for years to come.
Chehalis
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.
