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Foundation, Crawlspace & Concrete Contractors in Union, WA
Terrafirma in Union, WA
At TerraFirma, we focus on safeguarding and improving the structural integrity of homes in Union, WA, and the surrounding areas. For years, we’ve been serving local homeowners, helping them tackle the unique climate and soil challenges that come with living in this beautiful region.
From a cracked foundation and musty basements to damp crawl spaces and uneven concrete slabs, TerraFirma has the expertise, tools, and reliable solutions to restore your Union home and ensure its safety for years to come.
Union’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 Union
Foundation issues can lead to significant damage if they’re not taken care of. In Union, WA, homeowners may spot signs like cracks in the floor, bowing walls, or sagging floors, which often indicate more serious structural concerns. You might also notice doors sticking, windows that won’t close properly, or gaps appearing between your walls and ceilings. These could all be warning signs that your foundation is shifting due to soil movement, water damage, or natural wear and tear over time.
At TerraFirma, we’re here to help the residents of Union with expert foundation repairs tailored to address the specific causes of your foundation issues. Our process starts with a thorough inspection to evaluate the extent and origins of the problem. From there, we’ll recommend one or more of our trusted foundation repair solutions:
Foundation piers
In Union, WA, our push and helical piers are designed to stabilize and elevate your foundation by redistributing its weight to deeper, more stable soil. Helical piers are ideal for areas with known soil conditions, while push piers are great for situations where soil stability is uncertain. Both solutions are minimally invasive and provide lasting support for your home.
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, flexible maintenance options, and transferable warranties, providing you with confidence and peace of mind in your Union home.
Basement Waterproofing Union
Dealing with a wet basement in Union, WA? It’s more than just an inconvenience—excess moisture can lead to mold, mildew, structural damage, and poor air quality in your home. You might notice musty odors, stained walls, standing water, or even white, powdery deposits called efflorescence from evaporating water. Remember, even a tiny crack in your basement wall can turn into a significant source of moisture intrusion.
TerraFirma provides top-notch basement waterproofing solutions in Union, ensuring your space stays dry, healthy, and functional, no matter the weather.
Crawl Space Repair Union
Crawl spaces in Union, WA may often be forgotten, but they play a vital role in your home’s structure and air quality. If neglected, these areas can invite mold, pests, and standing water, leading to wood rot, unpleasant odors, and potential respiratory problems for you and your family.
At TerraFirma, we understand the unique crawl space conditions in Union, WA. Our specialized crawl space repair services effectively tackle moisture, mold, pests, and sagging floors with comprehensive solutions, including full encapsulation, drainage, 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 Union 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 Union
Whether it’s damaged, cracked, or uneven concrete, these issues aren’t just an eyesore—they can pose safety risks, too. Problems often arise from factors like poor soil compaction, freeze-thaw cycles, erosion, or tree roots. That’s why homeowners in Union turn to us for quick and effective repairs to their concrete slabs, sidewalks, patios, and driveways.
TerraFirma proudly provides quick, efficient, and durable concrete leveling and repair services right here in Union, 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 the Union, WA area, 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 Union, WA for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Union, WA
Union, WA, is situated in an active seismic zone, meaning that many homes, especially those built before the 1990s when updated building codes were introduced, may be at higher risk. Even small earthquakes can lead to homes shifting off their foundations or suffering significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Union home to its foundation and strengthen its ability to withstand seismic events.
Earthquake retrofitting in Union not only strengthens your home but can also help lower your insurance premiums and deductibles, plus make you eligible for coverage that may not have been available before.
How We Retrofit
Assessment & Planning
In Union, WA, our retrofitting process starts with a thorough evaluation of your building’s current condition. An expert, like a structural engineer or a skilled technician, will inspect your home to pinpoint any weaknesses and suggest the best solutions for improvement.
This evaluation involves checking the foundation, walls, roof, and overall structure. Based on these findings, our engineer will create a thorough retrofitting plan tailored to your needs.
Foundation Bolting
In Union, WA, securing your home’s foundation is the next essential step. Our technicians install anchor bolts to firmly connect your house to its foundation, helping to prevent any sideways movement in the event of an earthquake.
In Union, WA, we strengthen your foundation by drilling holes and installing steel bolts. Our team tightens these bolts to ensure your structure is stable and better equipped to handle seismic activity.
Adding Shear Walls
In Union, WA, shear walls play a vital role in earthquake retrofitting by effectively distributing seismic forces, helping to keep your home safe and standing strong.
In Union, WA, shear walls are usually made from sturdy materials like plywood, and they’re installed in key areas of the home, especially in cripple walls. These walls enhance support and stability, helping to minimize the risk of damage during an earthquake.
Bracing & Reinforcing
Next, we’ll enhance key areas of your home in Union with sturdy steel braces and straps. Our team carefully installs these reinforcements on crucial structural parts, including the roof, walls, and floors. This vital step boosts your home’s stability, ensuring it has a strong framework that can handle seismic forces effectively.
Securing Applicances
Ensuring your appliances are securely anchored can help create a safer living space in Union, WA. It’s important to stabilize items like water heaters and refrigerators, and our technicians also provide protective installations 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 Union Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Union 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 Union, WA has its own unique character, and TerraFirma is here to tackle any challenge that comes your way. Reach out to us today for a complimentary in-home estimate and learn how we can enhance the safety, health, and value of your home for years ahead.
Union
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.
