Foundation, Crawlspace & Concrete Contractors in Pleasant Hill, OR
Terrafirma in Pleasant Hill, OR
At TerraFirma, we’re dedicated to safeguarding and improving the structural integrity of homes in Pleasant Hill and throughout Oregon and Washington. For years, we’ve been proud to serve homeowners in Pleasant Hill, helping them tackle the unique climate and soil challenges of our region.
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 Pleasant Hill home and ensure its safety for years ahead.
Pleasant Hill’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 Pleasant Hill
Foundation issues can lead to significant damage if ignored. Homeowners in Pleasant Hill, OR may notice signs like floor cracks, bowing walls, or sagging floors, which could indicate more serious structural problems. You might also encounter sticking doors, windows that don’t close properly, or gaps between the walls and ceilings. These issues often signal that your foundation is shifting due to soil movement, water damage, or simply the wear and tear of age.
At TerraFirma, we specialize in foundation repairs in Pleasant Hill, providing expert solutions designed to address the specific issues affecting your home. Our process starts with a thorough inspection to identify both the extent of the damage and its root cause. From there, we will recommend one or more of our effective foundation repair systems tailored to meet your needs:
Foundation piers
In Pleasant Hill, OR, our push and helical piers are expertly designed to stabilize and elevate your foundation by distributing its weight to deeper, more stable soil. Helical piers work best in areas with familiar soil conditions, while push piers are ideal for places where soil stability may be uncertain. Both solutions are minimally invasive and provide long-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, ongoing maintenance options, and transferable warranties, so you can feel confident and at ease in your Pleasant Hill home.
Basement Waterproofing Pleasant Hill
Having a wet basement can result in mold, mildew, structural issues, and poor air quality in your home. Signs of water intrusion in Pleasant Hill may include musty odors, stained walls, standing water, or efflorescence—a white, powdery residue that forms when water evaporates. Even a tiny crack in your basement wall can turn into a significant entry point for moisture.
TerraFirma provides top-notch basement waterproofing solutions in Pleasant Hill, ensuring your space stays dry, healthy, and functional throughout the year.
Crawl Space Repair Pleasant Hill
Crawl spaces in Pleasant Hill are often forgotten, but they play a vital role in your home’s structure and air quality. If left unaddressed, a neglected crawl space can become a breeding ground for mold, pests, and standing water. These problems can lead to wood rot, unpleasant odors, and even respiratory issues for those living in your home.
We understand the unique crawl space conditions in Pleasant Hill, OR, and TerraFirma’s crawl space repair services are here to tackle issues like moisture, mold, pests, and sagging floors with comprehensive encapsulation, efficient drainage, and robust 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 Pleasant Hill 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 Pleasant Hill
Cracked, damaged, or uneven concrete can be more than just an eyesore—it poses safety risks too. Factors like poor soil compaction, freeze-thaw cycles, erosion, and tree root growth can lead to these issues. Homeowners in Pleasant Hill trust us to promptly and effectively restore their concrete slabs, sidewalks, patios, and driveways.
At TerraFirma, we provide quick, effective, and durable concrete leveling and repair solutions right here in Pleasant Hill, OR, utilizing advanced 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 the needs of Pleasant Hill residents, 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 Pleasant Hill, OR for industrial buildings, warehouse floors, roads, runways, and rail lines—using the same high-quality systems we trust for residential properties.
Earthquake Retrofitting Pleasant Hill, OR
Pleasant Hill is situated in an active seismic zone of the Pacific Northwest. Homes built before the updated building codes introduced in the 1990s may be particularly at risk. Even a minor earthquake could cause a home to shift off its foundation or suffer significant structural damage.
TerraFirma’s earthquake retrofitting services help secure your Pleasant Hill home to its foundation and strengthen its ability to withstand seismic events.
Retrofitting your home for earthquakes in Pleasant Hill not only enhances safety but can also lead to lower insurance premiums and deductibles, plus the chance to qualify for coverage that wasn’t available before the upgrade.
How We Retrofit
Assessment & Planning
In Pleasant Hill, OR, the retrofitting process kicks off with a thorough evaluation of your building’s current condition. A qualified professional, like a structural engineer or trained technician, will assess your home to pinpoint any weaknesses and suggest the best solutions.
This evaluation involves assessing the foundation, walls, roof, and overall structure of your home. Afterward, our engineer will create a thorough retrofitting plan tailored to the findings.
Foundation Bolting
Securing the foundation is an important step for homes in Pleasant Hill, OR. Our technicians install anchor bolts to firmly connect your house to its foundation, helping to prevent any lateral movement in the event of an earthquake.
Our process starts by drilling holes into the foundation and inserting steel bolts. Our skilled team tightens these bolts to reinforce the structure, boosting its stability and making it more resilient to potential seismic activity.
Adding Shear Walls
Shear walls play a vital role in earthquake retrofitting, helping to distribute seismic forces and ensuring the safety of structures in Pleasant Hill, OR.
Shear walls are usually made from plywood or other sturdy materials, and they are strategically placed throughout your home, especially in vulnerable areas like cripple walls. These walls add essential support and stability, helping to minimize the risk of damage during an earthquake in Pleasant Hill, OR.
Bracing & Reinforcing
Next, our team strengthens essential areas of your Pleasant Hill home with durable steel braces and straps. These are carefully installed on key structural elements like the roof, walls, and floors. This important step enhances your home’s stability, providing a robust framework designed to withstand seismic forces.
Securing Applicances
By securing your appliances, you can create a safer living environment in Pleasant Hill, OR. Anchoring essential items like water heaters and refrigerators is key to safety. Our technicians will also install protective measures for gas meters to help 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 Pleasant Hill Home Today
At TerraFirma, we’ve spent over 25 years helping homeowners in Pleasant Hill 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 Pleasant Hill, OR is unique, and TerraFirma has the perfect solution for every challenge. Reach out to us today for a complimentary in-home estimate and find out how we can make your home safer, healthier, and more valuable for years to come.
Pleasant Hill
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.
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Ask your neighbors why TerraFirma’s foundation, basement, and crawlspace work is top rated in Central Oregon. From Eugene to Corvallis, Springfield to Bend, and everywhere in between, our work speaks for itself!