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Foundation, Crawlspace & Concrete Contractors in King City, OR
Terrafirma in King City, 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 King City, helping them tackle the unique climate and soil challenges of our region.
From a cracking foundation and musty basement to a damp crawl space or uneven concrete slab, TerraFirma has the expertise, tools, and reliable systems to restore your King City home and ensure its safety for years to come.
King City’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 King City
Foundation issues can lead to significant damage to your home if not taken care of. In King City, OR, homeowners might notice symptoms like floor cracks, bowing walls, or sagging floors, which often indicate more serious structural problems beneath the surface. You may also experience sticking doors, windows that don’t close right, or gaps appearing between walls and ceilings. These signs could mean your foundation is shifting due to soil movement, water damage, or simply the passage of time.
At TerraFirma, we specialize in foundation repairs in King City, offering expert solutions designed specifically for the unique issues affecting your foundation. Our process starts with a thorough inspection to identify the root cause and extent of the problem. From there, we recommend one or more of our trusted foundation repair systems:
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 ideal for spots where soil stability is uncertain. Both solutions are minimally invasive and provide a lasting fix for your foundation needs in King City.
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, ensuring you have confidence and peace of mind in your King City home.
Basement Waterproofing King City
Dealing with a damp basement in King City? It can result in mold, mildew, structural issues, and even poor air quality in your home. Keep an eye out for signs of water intrusion like musty odors, stained walls, puddles, or efflorescence—a white, powdery residue that appears when water evaporates. Remember, even a tiny crack in your basement wall can become a significant gateway for moisture.
TerraFirma provides top-notch basement waterproofing solutions in King City, ensuring your space stays dry, healthy, and functional all year round, no matter the weather.
Crawl Space Repair King City
Don’t underestimate the importance of your crawl space in King City, OR. Often overlooked, it plays a vital role in your home’s structure and air quality. If neglected, it can become a breeding ground for mold, pests, and standing water, potentially leading to wood rot, unpleasant odors, and health concerns for you and your family.
We understand the unique crawl space conditions in King City, OR, and TerraFirma’s repair services are tailored to tackle moisture, mold, pests, and sagging floors. Our solutions include full encapsulation, effective drainage, and structural support to keep your home safe and dry.
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 King City 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 King City
Damaged, cracked, or uneven concrete isn’t just an eyesore—it can also pose safety risks. Issues like poor soil compaction, freeze-thaw cycles, erosion, or tree root growth can lead to these problems. Homeowners in King City trust us to restore their concrete slabs, sidewalks, patios, and driveways quickly and effectively.
TerraFirma provides quick, clean, and durable concrete leveling and repair services right here in King City, OR, using cutting-edge polyurethane foam injection and sealing techniques.
PolyLevel® Concrete Lifting
PolyLevel uses expanding polyurethane foam to lift and stabilize concrete slabs right here in King City, OR. This non-invasive method is perfect for:
- 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 King City, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting King City, OR
King City, OR, is located in an active seismic area of the Pacific Northwest. Homes built before the updated building codes of the 1990s are particularly at risk. Even a small earthquake can lead to your home shifting off its foundation or sustaining serious structural damage.
TerraFirma’s earthquake retrofitting services help secure your King City home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home for earthquakes in King City not only enhances safety but can also lower your insurance premiums and deductibles, plus help you qualify for coverage that you couldn’t access before.
How We Retrofit
Assessment & Planning
In King City, OR, the retrofitting process starts with a thorough assessment of your building’s current condition. An expert, like a structural engineer or a qualified technician, will take a close look at your home to pinpoint any weaknesses and suggest the best solutions.
This evaluation involves inspecting the foundation, walls, roof, and overall structure. After that, our engineer creates a detailed retrofitting plan tailored to the results.
Foundation Bolting
Securing the foundation is the next important step for homes in King City. Our technicians will install anchor bolts to connect your house to its foundation, keeping it safe from lateral movement during an earthquake.
This process includes drilling holes into the foundation and inserting steel bolts. Our skilled team then tightens the bolts to strengthen the structure, improving its stability and resistance to seismic activity.
Adding Shear Walls
Shear walls play an essential role in earthquake retrofitting by helping to distribute seismic forces and keeping buildings in King City safe from collapse.
In King City, OR, shear walls are usually made of strong materials like plywood, and are installed in key areas of your home, especially in cripple walls. These walls add essential 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 King City with steel braces and straps. Our team will install these essential supports on important structural elements like the roof, walls, and floors. This step enhances the overall stability of your home, providing a robust framework designed to withstand seismic forces.
Securing Applicances
By securing your appliances, you can create a safer living environment for everyone in your home. Anchoring essential items like water heaters and refrigerators is crucial. Our experienced technicians in King City will also install protective measures for gas meters to help 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 King City Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in King City 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 King City, OR has its own unique qualities—but TerraFirma has the right solutions for every challenge. Reach out to us today for a complimentary in-home estimate and find out how we can help enhance the safety, health, and value of your home for years to come.
King City
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.
