Foundation, Crawlspace & Concrete Contractors in Ridgefield, WA
Terrafirma in Ridgefield, WA
At TerraFirma, we proudly protect and enhance the structural integrity of homes throughout Washington and Oregon. For years, we’ve been helping homeowners in Ridgefield tackle the unique climate and soil challenges of the area with our expert repair services.
From a cracked foundation and musty basements to damp crawl spaces and uneven concrete slabs, TerraFirma has the know-how, tools, and reliable systems to restore your Ridgefield home and ensure it remains safe for years to come.
Ridgefield’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 Ridgefield
Foundation issues can lead to significant damage to homes in Ridgefield, WA, if not taken care of promptly. Homeowners may notice signs like cracks in the floors, bowing walls, or sagging floors that indicate deeper structural concerns. You might find that doors are sticking, windows won’t close properly, or there are noticeable gaps between your walls and ceilings. These can all point to foundation problems caused by soil movement, water damage, or the natural wear and tear that comes with age.
At TerraFirma, we provide specialized foundation repair services right here in Ridgefield. Our dedicated team focuses on identifying the root cause of your foundation issues with a thorough inspection. Based on our findings, we recommend effective, proven solutions tailored to your specific needs:
Foundation piers
Our push and helical piers are specially designed to stabilize and lift foundations in Ridgefield by shifting their weight to deeper, more stable soil. Helical piers work best in areas with known soil conditions, while push piers are great for locations where soil stability is uncertain. Both methods are minimally invasive and provide 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 professional installation, ongoing maintenance options, and transferable warranties, ensuring you feel confident and at ease in your Ridgefield home.
Basement Waterproofing Ridgefield
Dealing with a damp basement in Ridgefield, WA? It can lead to mold, mildew, structural issues, and poor air quality in your home. You might notice musty odors, discolored walls, standing water, or efflorescence—a white powdery residue that appears when water evaporates. Even a tiny crack in your basement wall can become a significant pathway for moisture.
TerraFirma provides top-notch basement waterproofing solutions in Ridgefield to ensure your space stays dry, healthy, and functional, regardless of the weather.
Crawl Space Repair Ridgefield
Crawl spaces in Ridgefield often get overlooked, but they play a vital role in your home’s structure and air quality. If left unattended, 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 you and your family.
We understand the unique crawl space conditions in Ridgefield, WA. That’s why TerraFirma’s crawl space repair services are tailored to tackle moisture, mold, pests, and sagging floors with comprehensive encapsulation, effective drainage, and sturdy 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 Ridgefield 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 Ridgefield
Chipped, cracked, or uneven concrete not only looks bad—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 Ridgefield turn to us for fast and effective solutions to repair their concrete slabs, sidewalks, patios, and driveways.
At TerraFirma, we provide quick, efficient, and durable concrete leveling and repair solutions in Ridgefield, WA, utilizing advanced polyurethane foam injection and expert crack sealing.
PolyLevel® Concrete Lifting
PolyLevel utilizes expanding polyurethane foam to lift and stabilize concrete slabs. This non-invasive method is perfect for Ridgefield, WA residents 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 Ridgefield, WA for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Ridgefield, WA
Ridgefield, WA, is located in a region that’s prone to seismic activity. Homes constructed before building codes were updated in the 1990s may be at greater risk. Even a small earthquake can lead to a home shifting off its foundation or suffering significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Ridgefield home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home for earthquakes in Ridgefield not only enhances safety but can also lower your insurance premiums and deductibles, and help you qualify for coverage that may not have been available before the upgrade.
How We Retrofit
Assessment & Planning
In Ridgefield, WA, the retrofitting process starts with a thorough assessment of your building’s current condition. A skilled expert—like a structural engineer or trained technician—will inspect your home to pinpoint any weaknesses and suggest the best solutions to enhance its stability.
“This evaluation involves inspecting the foundation, walls, roof, and overall structure. After that, our engineer will create a detailed retrofitting plan tailored to the results.”
Foundation Bolting
Securing the foundation is an essential next step in the process. Our technicians in Ridgefield, WA, install anchor bolts to firmly connect your home to its foundation, helping to prevent lateral movement during earthquakes.
Our process involves drilling into the foundation and installing steel bolts. Our team tightens these bolts to secure the structure, improving stability and strengthening its resistance to seismic activity.
Adding Shear Walls
Shear walls play an essential role in earthquake retrofitting by helping to distribute seismic forces and ensuring the safety of structures here in Ridgefield.
Shear walls, made from sturdy materials like plywood, are strategically placed throughout homes in Ridgefield, especially in vulnerable areas like cripple walls. These walls enhance support and stability, helping to minimize the risk of damage during an earthquake.
Bracing & Reinforcing
Next, we’ll strengthen key areas of your home in Ridgefield with steel braces and straps. Our team will carefully install these reinforcements to vital structural elements like the roof, walls, and floors. This important step enhances your home’s stability, ensuring a robust framework that can better withstand seismic forces.
Securing Applicances
Securing your appliances helps create a safer home for everyone in Ridgefield, WA. It’s crucial to anchor items like water heaters and refrigerators, and our technicians can also install protection for gas meters to 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 Ridgefield Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Ridgefield 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 Ridgefield, WA has its unique character—and TerraFirma is here with tailored solutions for every challenge. Reach out to us today for a complimentary in-home estimate and see how we can enhance the safety, health, and value of your home for years to come.
Ridgefield
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.