Concrete Sidewalk Repair Contractors in Washington & Northern Idaho

Slabjack Geotechnical specializes in professional concrete sidewalk repair throughout Washington and Northern Idaho. Since 2011, our family-owned company has provided property owners with safe, cost-effective alternatives to full replacement. Over the years, we’ve lifted and leveled thousands of sidewalks, helping homeowners, businesses, and municipalities eliminate trip hazards while restoring the value and appearance of their properties.

Uneven sidewalks are more than cosmetic concerns—they’re serious safety issues. Left unaddressed, cracks and sinking slabs can cause injuries, lead to liability claims, and even lower property value. Our mission is simple: to provide durable, eco-friendly, and affordable solutions that extend the life of your concrete.

Understanding the Causes of Sidewalk Damage

Sidewalks face stress every single day, and small problems quickly grow into major issues. Understanding the causes helps property owners see why sidewalk concrete repair is so important.

Soil Erosion and Drainage Issues

When water seeps under a slab, it can wash soil away, leaving hollow spaces. Without support, sidewalks shift and sink.

Tree Root Intrusion

Roots from nearby trees often lift concrete slabs. While trees add beauty, their roots create uneven sidewalks that require professional repair.

Settling and Poorly Compacted Soil

During construction, if the ground isn’t compacted properly, the soil continues to settle over time, leaving sidewalks uneven.

Freeze-Thaw Cycles

In Washington and Idaho, water expands when frozen, creating cracks and forcing slabs upward. When temperatures rise, the water drains away, leaving weakened or sunken areas.

Heavy Loads and Traffic

Foot traffic, wheelchairs, strollers, and small vehicles may not seem significant, but over years, the stress adds up. Combined with other factors, sidewalks crack and sink.

The impact: uneven slabs create tripping hazards, violate ADA accessibility standards, and reduce curb appeal. That’s why professional concrete sidewalk repair is the smarter choice over ignoring the problem or attempting DIY fixes.

Innovative Concrete Sidewalk Repair Methods

Concrete Sidewalk Repair

At Slabjack Geotechnical, we believe in smarter, cleaner, and longer-lasting repair methods. Our signature approach—slabjacking—offers property owners a safe and cost-effective solution.

Slabjacking: The Science of Concrete Lifting

Instead of tearing out and replacing entire sections of sidewalk, we drill small holes in the slab and inject a specialized high-density polyurethane foam beneath it. The foam expands, filling voids, compacting loose soil, and lifting the slab back into position.

This non-invasive method restores stability while addressing the underlying cause of the problem. Unlike temporary patch jobs, slabjacking delivers permanent results that protect your property for years.

Why Slabjacking Works Better than Replacement

Minimal Disruption – No loud demolition crews or blocked walkways for weeks.
Immediate Results – Sidewalks are ready for use within hours.
Cost Savings – On average, slabjacking costs 50–70% less than full replacement.
Eco-Friendly – Reuses existing concrete, reducing landfill waste and carbon emissions.
Durable – Our proprietary polymers are weather-resistant and designed for Washington and Idaho soils.

For property owners searching for concrete sidewalk repair contractors, slabjacking provides the right balance of affordability, reliability, and long-term value.

Benefits of Choosing Slabjack Geotechnical

Slabjack isn’t just another repair company—we’re industry leaders with a proven track record. Here’s why customers continue to trust us:

Family-Owned and Operated – We bring the integrity and accountability of a family business to every project.
Proven Experience – Thousands of successful sidewalk lifts completed since 2011.
Licensed, Bonded, and Insured – Peace of mind that your property is protected.
Advanced Technology – Custom-developed polymers designed to withstand regional soil and climate conditions.
Trusted Reputation – A+ BBB rating, strong online reviews, and countless referrals.
Customer-First Approach – From clear communication to clean worksites, we prioritize client satisfaction.

When safety and professionalism matter, Slabjack Geotechnical is the clear choice for sidewalk concrete repair across the Pacific Northwest.

Why Repair Is Better Than Replacement

Replacing sidewalks might seem like the only solution, but in most cases, repair is the better investment.

Time Efficiency – Replacement often takes days or weeks, while repairs can be completed in hours.
Cost Effectiveness – Save thousands by restoring slabs instead of tearing them out.
Reliability – Our methods stabilize the soil beneath the concrete, preventing future settlement.
Eco-Friendly – Reusing existing slabs means less waste and less environmental impact.

Repair keeps sidewalks safe, functional, and attractive while saving property owners money and stress.

Residential and Commercial Sidewalk Repair

For Homeowners

Uneven sidewalks near driveways or gardens can create hazards for your family, guests, and delivery drivers. Our residential services quickly eliminate these risks while boosting curb appeal.

For Property Managers

Apartments, condos, and HOA communities rely on safe walkways. We provide large-scale repairs that reduce liability and improve tenant satisfaction.

For Municipalities and Businesses

Public walkways are high-use areas that require efficient, reliable solutions. Slabjack partners with cities, schools, and businesses to ensure compliance with safety standards while minimizing disruption.

Common Sidewalk Repair Scenarios We Handle

Sidewalks lifted by tree roots near driveways or yards.
Cracked walkways caused by freeze-thaw cycles.
Sunken slabs in HOA neighborhoods.
City sidewalks damaged by erosion or soil settlement.
Commercial properties requiring fast, large-scale stabilization.

Every project is unique, but our proven approach adapts to the conditions of each site.

Our Service Areas in Washington & Northern Idaho

We’re proud to serve communities across Washington and Idaho, including:

Seattle Metro (Seattle, Bothell, Everett, Bellevue, Redmond)
Spokane and surrounding Eastern Washington areas
Tri-Cities (Kennewick, Richland, Pasco)
Northern Idaho (Coeur d’Alene, Post Falls, Hayden)

Wherever you are, Slabjack delivers responsive service and dependable results.

Contact Slabjack Geotechnical Today

Getting started with Slabjack Geotechnical is simple and stress-free. If your sidewalks are uneven, cracked, or sinking, reach out to us for a free estimate. Our team will assess the condition of your concrete, explain the best repair options, and provide a clear, no-obligation quote.

From your first call to project completion, we prioritize open communication, fair pricing, and fast results. With Slabjack, restoring your sidewalks is easier than you think—no hassle, no long wait times, just expert sidewalk concrete repair from a trusted team that gets it right the first time.