Foundation Crack Repair & Void Filling Portland OR
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Over 40 Years of Experience
Superior Customer Service
(503) 610-6268
CCB#219837
Professional Crack and Void Repair Services
When foundation cracks or voids form in your home, they’re never just cosmetic. Over time, they lead to serious structural damage, moisture intrusion, and safety risks. At Foundations First Northwest, we provide expert crack repair and void filling services, backed by decades of experience and engineering precision.
We are your trusted foundation repair company serving Portland, Lake Oswego, and Wilsonville—ready to restore stability and reliability to your home through professional concrete crack repair and structural solutions.
We Can Help Prevent Your Concrete from Damaging Separation
If you need crack or void repair, then come to the foundation repair company Wilsonville, OR; Lake Oswego, OR; Portland; the Coast and surrounding areas count on for their foundation needs. We commonly use crack and void repair to bind two pieces of concrete together to keep them from any further separation that might cause more damage. We also use carbon fiber and steel on more severe cracks in the foundation. It is generally used as either a long-term solution or a temporary fix for more major repairs.
Why Foundation Cracks and Voids Need Professional Attention
Small hairline cracks might seem harmless at first, but they can widen under pressure from shifting soil, freeze/thaw cycles, or hydrostatic forces. Left untreated, structural cracks undercut support, lead to foundation settlement, or allow water infiltration.
- Understanding Void Formation Voids form when soil shifts, washes away, or compacts unevenly. These gaps beneath slabs, footings, and foundation elements undermine the load-bearing support of your structure. Professional concrete void filling restores this critical support.
- Dangers of DIY Crack Repair Attempting DIY patching or filler injections without diagnosing the root cause results in recurring issues. That’s why choosing a qualified foundation repair company is critical. Our team begins each crack and void repair project with detailed assessment.
We identify the underlying forces—shifting soil, drainage problems, foundation movement, or external loads—and design a long-term repair strategy.
How We Perform Foundation Crack Repair
As a leading foundation crack repair specialist, we follow a structured, proven approach:
Diagnostic Inspection:
Our engineers and technicians use visual inspection, laser scans, moisture sensors, and ground-penetrating tools to uncover every crack, void, or structural anomaly.
Engineering Evaluation:
Based on soil conditions, structural loading, and local environmental factors, we determine which crack repair methods will offer lasting performance in Portland’s climate and soils.
Tailored Repair Plan:
We present repair options and costs clearly. Solutions may include crack injection, grout injection, carbon fiber reinforcement, steel reinforcement, or concrete void filling. You never pay for unnecessary work.
Site Preparation and Access
We ensure safe, clean access to the repair area. This includes excavating where necessary, protecting landscaping, and addressing water control for basement crack repair projects.
Professional Execution:
Our crack sealing and repair execution includes:
- Epoxy Injection – For structural foundation cracks, epoxy injection provides high-strength bonding and prevents further crack movement
- Polyurethane Injection – For wet cracks and active water infiltration, polyurethane injection expands to seal and waterproof
- Grout Injection – Concrete void filling using grout injection restores soil support beneath slabs and footings
- Carbon Fiber Reinforcement – Lightweight yet incredibly strong, carbon fiber systems stabilize wall cracks without extensive excavation
- Steel Reinforcement – For severe structural cracks, steel reinforcement provides maximum strength and stability
- Concrete Repair – Shotcrete overlay or traditional concrete repair restores surface continuity and structural integrity
By combining engineering insight with skilled craftsmanship, we deliver crack repair and concrete void filling solutions built to last.
Crack Repair Services We Provide
- Basement Crack Repair We fix basement wall crack issues and floor crack repair needs using appropriate crack sealing methods for each situation.
- Foundation Wall Crack Repair Structural wall crack repair using epoxy injection, polyurethane injection, or reinforcement systems depending on crack severity.
- Floor Crack Repair Concrete floor crack sealing prevents moisture intrusion and restores slab integrity using specialized crack injection techniques.
- Hairline Crack Sealing Even small hairline cracks require proper crack sealing to prevent expansion and water infiltration over time.
- Structural Crack Repair Severe structural cracks need engineering-backed solutions like carbon fiber reinforcement or steel reinforcement to prevent foundation failure.

Why Choose Foundations First Northwest
- Local Expertise We know Portland, Lake Oswego, and Wilsonville soils, drainage patterns, and climate demands. This knowledge informs our foundation crack repair approach.
- Comprehensive Solutions From foundation crack repair to crawl space issues to full foundation stabilization, we handle all structural repair needs under one roof.
- Transparent Pricing No surprises. We provide clear estimates upfront for all crack and void repair work.
- Proven Methods Our crack repair services use industry-leading epoxy injection, polyurethane injection, grout injection, and reinforcement techniques.
- Engineering-Backed Every crack sealing and structural repair solution is designed with engineering principles to ensure long-term performance.
- Quality Materials We use premium materials for crack injection, void filling, and reinforcement to guarantee durability.
- Complete Service Our foundation repair company handles inspection, diagnosis, concrete crack repair, and ongoing support.
When you need crack repair in Portland or surrounding areas, we provide holistic solutions that address both symptoms and root causes.
Real Results from Professional Crack Repair
Over the years, we’ve restored foundations across Portland, Lake Oswego, and Wilsonville. Our clients have experienced:
- Structural Stability
- Foundation cracks sealed using epoxy injection or polyurethane injection
- Wall crack repair preventing further bowing
- Structural cracks stabilized with carbon fiber reinforcement
- Concrete void filling restoring support beneath slabs
- Moisture Control
- Basement crack repair stopping water infiltration
- Crack sealing preventing moisture intrusion
- Waterproofing integrated with crack repair
- Dry basements year-round
- Long-Term Confidence
- Professional crack injection providing lasting repairs
- Warranties backing our crack and void repair work
- Engineering-designed solutions for structural cracks
- Peace of mind through quality foundation crack repair
We approach every project with the same care and commitment that define our reputation as a dependable foundation repair company.
Crawl Space Repair in Wilsonville, OR
A crack in the foundation often echoes a weakness in the crawl space. That’s why effective crawl space repair in Wilsonville, OR is essential. We repair sagging piers, level joists with adjustable jacks, reinforce posts, and install vapor barriers and dehumidification systems to keep moisture at bay.
By combining that repair work with our crack and void strategies, you get a unified, durable solution — not a patchwork. When you choose us as your foundation repair company in Wilsonville, OR, you’re choosing a partner committed to comprehensive repair and long-term structural health.
FAQs About Crack and Void Repair
Will repairing a crack stop all future movement?
While we can’t promise zero movement, our crack sealing solutions dramatically reduce further shifting. When combined with drainage control and proper load distribution through concrete void filling, future damage is unlikely.
How invasive is crack and void repair work?
Many foundation cracks and voids can be repaired with minimal excavation using crack injection techniques. Only in deeper or more complex cases do we dig extensively. We always protect landscaping and minimize disruption.
How long does crack repair last?
With proper technique, quality materials like epoxy injection or polyurethane injection, and preventive measures, professional crack repair can last for decades.
When do I need crack repair right away
If you see widening structural cracks, moisture intrusion, or signs of foundation settlement, call immediately. Early crack sealing prevents minor issues from becoming major structural problems.
Take Action Today
Don’t wait until minor foundation cracks become major structural threats. Contact Foundations First Northwest, the professional foundation crack repair company serving Portland, Lake Oswego, and Wilsonville, to schedule your free inspection and estimate.
Our skilled team is ready to diagnose and repair crack and void issues with precision and care using proven methods like epoxy injection, polyurethane injection, grout injection, and carbon fiber reinforcement.
Whether you need basement crack repair, wall crack repair, floor crack repair, or concrete void filling, we deliver integrated solutions you can depend on. Let us restore strength, protect value, and give you peace of mind.
Contact Us Today
With over 40 years of experience completing excellent foundation repair work, we’re committed to providing the finest crack repair services. We have deep expertise in crack sealing, crack injection, concrete void filling, and structural reinforcement.
We’re highly qualified for all crack and void repair needs. We also strive to make work convenient for our clients with cost-effective pricing and financing options.
Contact Foundations First Northwest for a free estimate. As the experts on crack repair and foundation services in Portland, Lake Oswego, and Wilsonville, we look forward to solving your foundation crack repair needs.
Call Us!
Free Foundation Repair Estimates
Our foundation crack repair specialists are ready to restore your home’s structural integrity using professional crack sealing, crack injection, and reinforcement techniques.


