Your home’s foundation is its most critical structural element, supporting everything above it — from walls and floors to plumbing and roofing. Over time, soil movement, drainage issues, and weather conditions can cause settling, cracks, or water intrusion. Professional foundation specialists help homeowners stabilize, repair, and waterproof their homes to prevent serious long-term damage.
The foundation repair industry has evolved to include advanced pier systems, wall anchors, drainage control, and crawl-space encapsulation. The best companies combine engineering expertise with strong warranties, providing lasting peace of mind.
The best foundation repair companies typically charge between $2,000 to $15,000, depending on the home’s size, soil conditions, and type of damage. Choose based on your priorities: structural repair expertise, waterproofing technology, warranty coverage, and regional experience.
- Best for Nationwide Service: Groundworks, Olshan Foundation Solutions
- Best for Waterproofing: Basement Systems, AFS Foundation & Waterproofing Specialists
- Best for Regional Expertise: Alpha Structural, Alpha Foundations
- Best for Exterior Protection: Erie Home
How to Decide
When choosing a foundation repair company, start by confirming structural licensing, insurance, and engineering accreditation. Ask for a detailed inspection report with photos and cost options before signing a contract. Compare warranties and financing, and always get at least two professional evaluations to confirm the repair method and total project cost.
Best Companies at a Glance
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- Nationwide coverage with licensed technicians
- Comprehensive repair and waterproofing options
- Lifetime transferable warranties and financing options
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- Decades of industry experience and expertise
- Proprietary pier systems with strong warranties
- Excellent regional coverage and responsiveness
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- Industry-leading waterproofing innovation
- Certified installers across North America
- Strong warranties and long-term moisture protection
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- Certified structural engineers involved in projects
- High-quality materials and installation methods
- Strong warranties on structural stabilization
Top 10 Foundation and Waterproofing Companies
Groundworks
- Average Cost: $4,000 to $15,000
What We Love
Groundworks is the largest foundation repair and waterproofing company in the U.S., operating under multiple brands in more than 30 states. Its services include foundation stabilization, basement waterproofing, crawl space repair, and concrete lifting. With licensed structural specialists and engineering partnerships, Groundworks combines scale with precision. Homeowners value its reliability, long-term warranties, and professional installation crews.
We rate it 5 stars for engineering excellence, national coverage, and consistent service quality.
Cost Information
Foundation repairs typically range from $4,000 to $15,000, depending on damage and system type.
- Crack Repair: $800 to $2,000
- Pier Installation: $3,500 to $10,000
- Waterproofing or Encapsulation: $2,500 to $8,000
Most homeowners spend $5,000 to $9,000 total for complete stabilization or waterproofing.
Best Program
Groundworks’ Complete Home Stabilization Program combines structural repair with moisture management and lifetime transferable warranties.
Olshan Foundation Solutions
- Average Cost: $3,000 to $12,000
What We Love
Olshan has been a trusted name in foundation repair for more than 90 years, serving homeowners across the Southern and Central U.S. The company is known for its Cable Lock™ ST Plus technology, which reinforces foundations with minimal disruption. Olshan also offers drainage correction, waterproofing, and slab stabilization with lifetime warranties.
We rate it 4.5 stars for innovative technology, trusted reputation, and proven results.
Cost Information
Most projects fall between $3,000 and $12,000, depending on foundation type and soil conditions.
- Pier Installation: $4,000 to $8,000
- Crawl Space Repair: $3,000 to $6,000
- Waterproofing: $2,000 to $5,000
Typical total costs range $5,000 to $9,000 for average homes.
Best System
Olshan’s Cable Lock™ ST Plus System remains one of the most trusted piering technologies in the industry.
Basement Systems
- Average Cost: $2,500 to $10,000
What We Love
Basement Systems operates a network of certified contractors across the U.S. and Canada, specializing in basement waterproofing, crawl-space repair, and moisture control. The company’s CleanSpace® and WaterGuard® systems have redefined below-grade protection, keeping basements dry and structurally sound. Homeowners also benefit from nationwide warranties and innovation-driven solutions.
We rate it 4.5 stars for waterproofing excellence, reliability, and extensive coverage.
Cost Information
Waterproofing projects typically range $2,500 to $10,000, depending on home size and moisture level.
- Crawl Space Encapsulation: $3,000 to $8,000
- Sump Pump Installation: $1,500 to $3,000
- Basement Drainage Systems: $4,000 to $9,000
Most homeowners spend $4,000 to $8,000 total.
Best System
Basement Systems’ CleanSpace® Encapsulation System creates a sealed, moisture-free environment with mold prevention and transferable warranties.
Ram Jack
- Average Cost: $3,500 to $11,000
What We Love
Ram Jack provides patented steel piering systems and custom-engineered foundation repairs across 40+ states. Each project is designed to match local soil conditions, ensuring structural stability and long-term performance. Homeowners appreciate the company’s transparent pricing and lifetime warranty on most repairs.
We rate it 4.5 stars for engineering precision, structural integrity, and national availability.
Cost Information
Projects usually range $3,500 to $11,000, depending on home size and soil depth.
- Steel Pier Installation: $4,000 to $8,000
- Concrete Lifting: $2,000 to $5,000
- Drainage Correction: $1,000 to $3,500
Average total cost: $5,000 to $8,000.
Best System
Ram Jack’s Patented Steel Piling System provides lasting stabilization and is supported by a transferable limited lifetime warranty.
AFS Foundation & Waterproofing Specialists
- Average Cost: $2,500 to $9,000
What We Love
AFS Foundation & Waterproofing Specialists, part of the Groundworks family, serves the Southeastern U.S. with expert foundation repair and basement waterproofing. Its local teams understand regional soil challenges and offer tailored solutions backed by lifetime warranties. Customers consistently praise AFS for professionalism and thorough service.
We rate it 4.5 stars for regional expertise, customer satisfaction, and reliable waterproofing systems.
Cost Information
Typical projects cost $2,500 to $9,000, depending on structure and damage.
- Crawl Space Repair: $2,000 to $6,000
- Foundation Piers: $3,500 to $8,000
- Waterproofing: $2,500 to $5,000
Most homeowners spend $4,000 to $7,000 total.
Best Program
AFS’s Total Home Protection Program combines foundation repair and waterproofing under a single lifetime warranty.
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Alpha Foundations
- Average Cost: $2,500 to $8,500
What We Love
Alpha Foundations serves homeowners across Florida and Southern Georgia, providing dependable foundation repair, crawl space encapsulation, and concrete leveling. Known for professionalism and thorough workmanship, the company delivers local expertise with the backing of the Groundworks network.
We rate it 4 stars for trusted regional service, technical expertise, and consistent customer satisfaction.
Cost Information
Most projects range $2,500 to $8,500.
- Crawl Space Repair: $2,000 to $5,000
- Concrete Leveling: $1,500 to $4,000
- Piering Systems: $4,000 to $8,000
Most homeowners spend $3,500 to $6,500 total.
Best Program
Alpha Foundations’ Crawl Space Repair Program provides durable protection against moisture and settling in humid climates.
Alpha Structural
- Average Cost: $3,000 to $10,000
What We Love
Alpha Structural is a premier structural engineering and foundation repair firm serving Southern California, specializing in hillside stabilization and seismic retrofitting. Its licensed engineers oversee every project, ensuring accuracy and safety. The company is well regarded for handling complex residential and commercial structures in demanding terrain.
We rate it 4 stars for engineering precision, local trust, and specialized technical capability.
Cost Information
Most foundation projects range $3,000 to $10,000, depending on slope and home type.
- Seismic Retrofitting: $4,000 to $9,000
- Piering and Support: $3,500 to $7,500
- Drainage Correction: $2,000 to $5,000
Average total cost: $5,000 to $8,000.
Best Program
Alpha Structural’s Earthquake Safety Program delivers engineered retrofits that meet California’s strict seismic standards.
Erie Home
- Average Cost: $3,000 to $9,000
What We Love
Erie Home, best known for its roofing and exterior remodeling, also offers foundation waterproofing and basement protection in 40+ metro markets across the U.S.. Its crews deliver the same customer-first service and lifetime warranties that have made the brand a household name in home improvement. Erie’s growing foundation division focuses on interior and exterior waterproofing, sump pump systems, and drainage upgrades.
We rate it 4 stars for reliability, product quality, and multi-service expertise.
Cost Information
Foundation waterproofing projects typically range $3,000 to $9,000, depending on system and home layout.
- Interior Waterproofing: $3,000 to $7,000
- Sump Pump Installation: $1,200 to $3,000
- Exterior Drainage Systems: $5,000 to $9,000
Most homeowners spend $4,000 to $7,500 total.
Best System
Erie Home’s Basement Defense System integrates waterproofing and exterior water management with strong lifetime warranties.
Superior Walls of America
- Average Cost: $8,000 to $20,000
What We Love
Superior Walls manufactures precast insulated foundation systems used in both new construction and retrofit applications across the U.S. and Canada. Their wall panels arrive pre-engineered and pre-insulated, allowing faster installation and improved energy efficiency compared to poured concrete. The company’s innovative Xi Series panels deliver long-term structural and thermal performance.
We rate it 3.5 stars for innovation, energy efficiency, and precision manufacturing.
Cost Information
Precast foundation systems range $8,000 to $20,000, depending on home size and design.
- Basement Wall Installation: $10,000 to $18,000
- Crawl Space Systems: $8,000 to $15,000
- Custom Builds: $15,000 to $25,000
Most homeowners spend $12,000 to $18,000 total.
Best Series
The Superior Walls Xi Series provides quick installation, reduced heat loss, and lasting structural stability.
Michels Construction Inc.
- Average Cost: $5,000 to $25,000
What We Love
Michels Construction Inc. is a major national contractor headquartered in the Midwest, offering foundation work for residential, commercial, and infrastructure projects across the U.S. Known for precision, safety, and engineering excellence, Michels brings large-scale construction expertise to complex residential stabilization and piling projects.
We rate it 3.5 stars for technical capability, large-scale experience, and construction quality.
Cost Information
Pricing ranges widely from $5,000 to $25,000, depending on scope.
- Residential Foundation Repair: $5,000 to $12,000
- Commercial Piling: $10,000 to $25,000
- Infrastructure Stabilization: Custom pricing
Most residential clients spend $7,000 to $10,000 total.
Best Division
The Michels Structural Division applies advanced foundation systems to both residential and industrial properties.
