Foundation, Crawlspace & Concrete Contractors in Westport, OR
Terrafirma in Westport, OR
At TerraFirma, we’re dedicated to safeguarding and strengthening the structural integrity of homes right here in Westport, Oregon. With years of experience in the area, we’ve helped local homeowners tackle the unique climate and soil challenges that come with living on the coast.
From a solid foundation to a dry basement, a well-ventilated crawl space, or a level concrete slab, TerraFirma has the knowledge, tools, and reliable solutions to restore your Westport home and ensure it stays safe for years to come.
Westport’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 Westport
Foundation problems can lead to significant damage to your home if neglected. In Westport, OR, you might notice signs like cracks in the floors, walls that bow, or sagging floors—all of which could indicate more serious structural issues. Homeowners may also experience sticking doors, windows that don’t close properly, or noticeable gaps between walls and ceilings. These issues could be warning signs that your foundation is shifting due to soil movement, water damage, or the effects of aging.
At TerraFirma, we specialize in foundation repairs right here in Westport, offering expert solutions designed to address the specific causes of your foundation issues. We start with a thorough inspection to identify the extent and source of the problem, and then we recommend one or more of our reliable foundation repair systems to ensure your home is stable and secure.
Foundation piers
Our push and helical piers are expertly 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 locations with uncertain soil stability. Both options are minimally invasive and provide lasting solutions for your home in Westport.
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 Westport home.
Basement Waterproofing Westport
Living in Westport, OR, you know how essential a dry basement is for your home. A damp basement can lead to mold, mildew, structural issues, and poor air quality. You might notice signs like musty odors, stained walls, standing water, or efflorescence—a white, powdery residue left when water evaporates. Even a tiny crack in your basement wall can turn into a big problem, letting moisture in and potentially causing serious damage.
TerraFirma provides top-notch basement waterproofing solutions in Westport, ensuring your space stays dry, healthy, and functional—regardless of the weather.
Crawl Space Repair Westport
Crawl spaces in Westport can easily be forgotten, but they play an essential role in your home’s structure and air quality. If not properly maintained, a neglected crawl space can become a breeding ground for mold, pests, and standing water. These issues may result in wood rot, unpleasant odors, and even respiratory problems for those living in your home.
We understand the unique crawl space conditions in Westport, OR. That’s why TerraFirma offers tailored crawl space repair services to tackle moisture, mold, pests, and sagging floors with complete 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 Westport 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 Westport
Damaged, cracked, or uneven concrete can be more than just an eyesore—it can pose safety risks too. Issues like poor soil compaction, freeze-thaw cycles, erosion, and tree root growth can all contribute to these problems. That’s why homeowners in Westport turn to us for quick and effective repairs for their concrete slabs, sidewalks, patios, and driveways.
TerraFirma provides quick, efficient, and durable concrete leveling and repair solutions for Westport, OR, utilizing cutting-edge 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 the unique needs of Westport, OR, including:
- 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 Westport, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Westport, OR
Westport, OR is located in a region of the Pacific Northwest that’s prone to seismic activity. Homes constructed before the updated building codes of the 1990s may be particularly at risk. Even minor earthquakes can lead to homes shifting off their foundations or suffering significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Westport home to its foundation and strengthen its ability to withstand seismic events.
Upgrading your home in Westport with earthquake retrofitting not only enhances safety but can also lead to lower insurance premiums and deductibles, plus access to coverage options that may not have been available before.
How We Retrofit
Assessment & Planning
In Westport, OR, the retrofitting process starts with a thorough assessment of your building’s current state. An expert, like a structural engineer or a trained technician, will inspect your home to pinpoint any weaknesses and suggest the best solutions.
Our evaluation covers everything from the foundation and walls to the roof and overall structure. Following this, our engineer creates a detailed retrofitting plan tailored to the insights gathered.
Foundation Bolting
The next step in the process is securing the foundation. Our skilled technicians install anchor bolts to firmly connect your home to its foundation, ensuring it stays put during an earthquake.
Our approach includes drilling into the foundation and installing sturdy steel bolts. Our team then tightens these bolts, ensuring the structure is more stable and better equipped to withstand seismic activity.
Adding Shear Walls
Shear walls are an essential part of earthquake retrofitting in Westport, OR, as they help distribute seismic forces and keep our buildings safe from collapsing.
Shear walls, usually made from sturdy materials like plywood, are strategically installed throughout homes, especially in vulnerable areas known as cripple walls. These essential features enhance the walls’ strength and stability, helping to minimize the risk of damage during an earthquake.
Bracing & Reinforcing
Next, we strengthen key areas of your Westport home using durable steel braces and straps. Our team carefully installs these on essential structural components like the roof, walls, and floors. This important step enhances your home’s stability, creating a robust framework designed to withstand seismic forces.
Securing Applicances
Ensuring your appliances are securely anchored not only creates a safer living space in Westport, OR, but also protects your home from potential hazards. It’s essential to fasten items like water heaters and refrigerators. Our technicians can also install safety 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 Westport Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Westport 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 Westport, OR has its own unique character—and TerraFirma is here with solutions for every challenge you face. Reach out to us today for a free in-home estimate and learn how we can help make your home safer, healthier, and more valuable for years to come.
Westport
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.