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Foundation, Crawlspace & Concrete Contractors in Harrisburg, OR
Terrafirma in Harrisburg, OR
At TerraFirma, we focus on safeguarding and improving the structural integrity of homes right here in Harrisburg, Oregon. For years, we’ve been dedicated to helping local homeowners tackle the specific climate and soil challenges our region presents.
From a cracking foundation and a musty basement to a damp crawl space or an uneven concrete slab, TerraFirma has the knowledge, tools, and reliable solutions to restore your Harrisburg home and ensure it remains safe for years to come.
Harrisburg’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 Harrisburg
Foundation issues can lead to significant damage to your home if not taken care of. Signs like cracks in the floor, bowing walls, and sagging floors can indicate underlying structural problems. Homeowners in Harrisburg, OR may also notice doors that stick, windows that don’t close properly, or visible gaps between walls and ceilings. These could all be indicators that your foundation is shifting due to soil movement, water damage, or aging.
At TerraFirma, we provide expert foundation repair services in Harrisburg, tailored to address the specific issues affecting your home. We start with a thorough inspection to identify the root cause of your foundation problems. From there, we recommend one or more of our reliable foundation repair solutions:
Foundation piers
Our push and helical piers are designed to stabilize and lift your foundation by transferring its load to deeper, more stable soil. In Harrisburg, helical piers are a great choice for known soil conditions, while push piers are ideal for areas with uncertain stability. Both solutions are minimally invasive and provide lasting results.
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, continuous maintenance options, and transferable warranties, ensuring you have confidence and peace of mind in your Harrisburg home.
Basement Waterproofing Harrisburg
Dealing with a wet basement in Harrisburg? It’s more than just an annoyance—it can lead to mold, mildew, structural problems, and poor air quality in your home. Look out for signs like musty odors, stained walls, pooling water, or efflorescence, the white, powdery substance that appears when water evaporates. Even a tiny crack in your basement wall can turn into a big issue, allowing moisture to seep in. Don’t wait until it’s too late—get it checked out!
TerraFirma provides top-notch basement waterproofing solutions in Harrisburg to ensure your space stays dry, healthy, and functional all year round, regardless of the weather.
Crawl Space Repair Harrisburg
Crawl spaces in Harrisburg are often overlooked, yet they play a vital role in your home’s structure and air quality. If neglected, these spaces can trap moisture, attract pests, and promote mold growth. This can lead to serious issues like wood rot, unpleasant odors, and even respiratory problems for your family.
We understand the unique crawl space conditions in Harrisburg, OR, and TerraFirma is here to help. Our crawl space repair services effectively tackle moisture, mold, pests, and sagging floors with solutions like 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 Harrisburg 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 Harrisburg
Don’t let damaged, cracked, or uneven concrete ruin the look of your property or pose a safety risk. These issues can arise from factors like poor soil compaction, freeze-thaw cycles, erosion, or tree roots. Homeowners in Harrisburg turn to us for fast and effective solutions to their concrete slabs, sidewalks, patios, and driveways.
At TerraFirma, we provide quick, efficient, and durable concrete leveling and repair solutions for Harrisburg, using innovative polyurethane foam injection and expert crack sealing.
PolyLevel® Concrete Lifting
PolyLevel uses expanding polyurethane foam to lift and stabilize concrete slabs. This non-invasive method is perfect for residents of Harrisburg, OR, 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 Harrisburg, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Harrisburg, OR
Harrisburg, Oregon, is part of an area known for its seismic activity. Homes built before the updated building codes of the 1990s may be at greater risk. Even a small earthquake can lead to significant structural damage or cause a home to shift off its foundation.
TerraFirma’s earthquake retrofitting services help secure your Harrisburg home to its foundation and strengthen its ability to withstand seismic events.
Earthquake retrofitting in Harrisburg can help lower your insurance premiums and deductibles, plus it may qualify you for coverage options that weren’t available before the upgrade.
How We Retrofit
Assessment & Planning
In Harrisburg, the retrofitting process starts with a thorough evaluation of your building’s current condition. An expert—like a structural engineer or a trained technician—will inspect your home to pinpoint any weaknesses and suggest the best solutions.
This assessment involves taking a close look at the foundation, walls, roof, and overall structure. After that, our engineer will create a detailed retrofitting plan tailored to the findings.
Foundation Bolting
Fortifying the foundation is the next crucial step in the process. Our skilled technicians install anchor bolts to securely attach your home to its foundation, helping to prevent any shifting during an earthquake.
Our process involves drilling into the foundation and inserting steel bolts, ensuring a secure fit. Our skilled team tightens these bolts to enhance the structure’s stability and improve its resistance to seismic forces, keeping your Harrisburg home safe and sound.
Adding Shear Walls
Shear walls are an essential part of earthquake retrofitting in Harrisburg, as they help distribute seismic forces and keep buildings safe from collapsing.
Shear walls are usually made from sturdy materials like plywood, and they’re set up in key areas of your home, especially in cripple walls. These additions reinforce the walls, enhancing stability and minimizing the risk of damage during an earthquake right here in Harrisburg.
Bracing & Reinforcing
Next, we strengthen key areas of your home in Harrisburg with durable steel braces and straps. Our team installs these supports to vital structural components like the roof, walls, and floors, enhancing your home’s stability and ensuring it has a strong framework capable of withstanding seismic forces.
Securing Applicances
Ensuring your appliances are secure can greatly enhance the safety of your home in Harrisburg, OR. Properly anchoring items like water heaters and refrigerators is crucial. Our technicians also provide protection for gas meters to help prevent 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 Harrisburg Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Harrisburg 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 Harrisburg, OR is unique—but at TerraFirma, we have the perfect solution for every challenge. Reach out to us today for a free in-home estimate and find out how we can help make your home safer, healthier, and more valuable for years to come.
Harrisburg
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.
