Foundation Repair Contractor in Franklin County, MO

When it comes to protecting your home, there’s no room for compromise. If you’re seeing signs of foundation damage, basement water intrusion, or settling concrete, Cornerstone Structural Repair & Waterproofing is the team you can trust. As an experienced foundation repair contractor in Franklin County, MO, we specialize in identifying the root causes of structural and water-related issues and providing long-lasting solutions. From foundation crack repair to basement waterproofing and concrete leveling, we offer comprehensive services throughout the greater St. Louis area.

We proudly serve homeowners in Washington, Union, Pacific, Sullivan, and communities across Franklin County with personalized solutions backed by industry expertise and integrity. Contact us to learn more or request your foundation repair and basement waterproofing quote today.

Understanding Homes and Structural Issues in Franklin County

Franklin County offers a wide range of homes, from historic properties in downtown Washington to newer builds in suburban neighborhoods. While the architectural styles may differ, many homes in the area face similar structural and environmental challenges due to Missouri’s expansive clay soil, variable weather conditions, and aging infrastructure.

Common Concerns in Franklin County Homes:

• Horizontal and stair-step cracks in foundation walls
• Water seeping into basements after heavy rain
• Sagging or uneven concrete slabs in driveways and walkways
• Outdated or non-code basement windows in finished spaces

Whether your home is on a quiet street in St. Clair or nestled on a hillside in Leslie, you need a repair strategy that takes into account the soil conditions, drainage patterns, and construction type in your neighborhood.

Cities and Areas We Serve in Franklin County:

• Washington
• Union
• Pacific
• Sullivan
• St. Clair
• Gerald
• New Haven
• Leslie
• Villa Ridge
• Beaufort

Our Services: Quality Repairs that Protect Your Home

Cornerstone Structural Repair & Waterproofing delivers durable, professional services designed to address your home’s most urgent structural concerns.

Foundation Crack Repair

Cracks in your foundation aren’t just cosmetic, they can indicate serious movement or stress on the structure. Our repair team uses proven foundation crack repair methods including injection techniques and reinforcement strategies to permanently seal cracks, stabilize walls, and protect against future damage.

Basement Waterproofing

Don’t let a damp basement turn into a disaster. We design basement waterproofing systems that are customized to your home’s layout and drainage issues. Our solutions include:

• French drains and interior drainage systems
• High-capacity sump pumps with battery backup
• Moisture barriers and vapor seals
• Grading improvements and exterior water management

Whether your basement is finished or unfinished, we’ll help keep it dry, clean, and protected from mold and moisture.

Egress Window Installation

An egress window isn’t just a code requirement for basement bedrooms, it’s a major safety upgrade. We handle all aspects of egress window installation, including excavation, drainage, window installation, and finishing touches, creating a bright, secure exit point that enhances both safety and style.

Concrete Repair and Leveling

Cracked, sunken, or uneven concrete around your home isn’t just unattractive, it’s a tripping hazard and a sign of soil instability. Using polyurethane foam injection, we lift and level:

• Sidewalks
• Driveways
• Garage floors
• Patios and porches

This fast, efficient concrete repair solution avoids the need for expensive replacement and can typically be completed in just one day.

Why Choose Cornerstone in Franklin County?

• Local Knowledge: We understand the specific soil types, weather patterns, and construction issues common in Franklin County. This lets us offer better diagnostics and more reliable long-term fixes.
• Trusted Experience: With decades of combined experience, our team has seen it all and repaired it all. You can count on our expertise for accurate assessments and high-quality workmanship.
• No Gimmicks, Just Solutions: We believe in providing honest, pressure-free evaluations. You’ll get straightforward answers and service recommendations tailored to your needs and budget.
• Proven Results: Our foundation repair and waterproofing solutions are backed by warranties and tested to perform under Missouri’s toughest conditions.

FAQs About Our Foundation Repair and Waterproofing in Franklin County

What are the warning signs that I need foundation repair?

Look for wall cracks, sticking doors and windows, uneven flooring, or visible gaps between walls and ceilings. These symptoms may indicate your foundation is shifting or settling.

Is basement moisture something I can ignore?

No. Even small amounts of moisture can cause mold, rot, and long-term damage. A properly designed waterproofing system will keep your basement dry and preserve your home’s value.

Do I need to replace my concrete, or can it be lifted?

In many cases, our polyurethane foam injection can lift and stabilize concrete slabs without the need for removal or replacement.

Learn more about concrete repair vs. replacement.

How long does an egress window installation take?

Most egress window installations can be completed within 1–2 days, including excavation, drainage, and finishing.

Do you serve rural areas in Franklin County?

Yes, we proudly work with homeowners throughout Franklin County, including both rural properties and homes in smaller towns and unincorporated areas.

Schedule Your Free Estimate with Cornerstone Today

When you need a reliable foundation repair contractor in Franklin County, MO, Cornerstone Structural Repair & Waterproofing is here for you. Whether you’re dealing with a leaking basement, cracked foundation, or uneven concrete, we’ll provide a clear, honest assessment and expert repair services tailored to your home.

Contact us online or call today to schedule your free inspection. Discover why homeowners across Franklin County trust Cornerstone for reliable, long-lasting results and unmatched customer care.