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10 Best Foundation Companies of 2025

Looking for the right foundation repair company?
Explore our list of the top options!
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Your home’s foundation supports everything above it — walls, floors, plumbing, and roofing. Over time, shifting soil or water damage can cause cracks and settling that threaten your home’s structure. Experienced professionals can help stabilize your home to prevent costly long-term damage.

The best foundation repair companies in 2025 include Groundworks, Olshan Foundation Solutions, Basement Systems, and Ram Jack. These brands offer engineering expertise and strong warranties backed by proven customer service. Choose a provider based on repair expertise, 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

Best Companies at a Glance

Top 10 Foundation and Waterproofing Companies

The Modernize research team reviewed dozens of foundation specialists across the U.S., evaluating them for customer satisfaction, engineering innovation, repair quality, warranty coverage, and service availability. These are the top performers for 2025.
  1. Groundworks
  2. Olshan Foundation Solutions
  3. Basement Systems
  4. Ram Jack
  5. AFS Foundation & Waterproofing Specialists
  6. Alpha Foundations
  7. Alpha Structural
  8. Erie Home
  9. Superior Walls of America
  10. Michels Construction Inc.
1

Groundworks

5/5
  • Average Cost: $4,000 to $15,000
Best For: Nationwide foundation and waterproofing solutions

What We Love

Groundworks is the largest foundation repair and waterproofing network in the U.S., operating under multiple regional brands in more than 30 states. Its licensed teams handle foundation stabilization, crawl space repair, basement waterproofing, and concrete lifting. The company combines engineering precision with nationwide reliability, offering long-term warranties and professional installation backed by strong customer reviews.

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.

Nationwide coverage with licensed technicians
Comprehensive repair and waterproofing options
Lifetime transferable warranties and financing options
Higher pricing than local contractors
Scheduling delays during busy seasons
Financing terms vary by state
2

Olshan Foundation Solutions

4.5/5
  • Average Cost: $3,000 to $12,000
Best For: Long-term structural repair

What We Love

With more than 90 years of experience, Olshan Foundation Solutions is one of the most established names in the industry. Its patented Cable Lock™ ST Plus system reinforces foundations with minimal disruption. Olshan also provides waterproofing, drainage correction, and slab stabilization services — each backed by lifetime warranties and a trusted regional presence across the South and Central U.S.

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 is one of the most trusted piering technologies available.

Decades of industry experience and expertise
Proprietary pier systems with strong warranties
Excellent regional coverage and responsiveness
Limited to Southern and Central states
Premium cost for patented systems
Excellent regional coverage and responsiveness
3

Basement Systems

4.5/5
  • Average Cost: $2,500 to $10,000
Best For: Waterproofing and crawl space encapsulation

What We Love

Basement Systems leads the waterproofing industry with an extensive certified-contractor network across the U.S. and Canada. Its CleanSpace® and WaterGuard® systems protect basements and crawl spaces from moisture, mold, and structural damage. Homeowners praise the company for its reliable service, durable materials, and transferable warranties.

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 that prevents mold and moisture intrusion.

Industry-leading waterproofing innovation
Certified installers across North America
Strong warranties and long-term moisture protection
Focuses primarily on waterproofing
Pricing varies by local dealer
May require multi-day installation
4

Ram Jack

4.5/5
  • Average Cost: $3,500 to $11,000
Best For: Engineered foundation solutions

What We Love

Ram Jack provides patented steel piering and engineered foundation repair across more than 40 states. Each project is customized to local soil conditions, ensuring stable, long-term results. Homeowners value Ram Jack’s transparent pricing, licensed engineering support, and lifetime warranty on most structural repairs.

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.

Certified structural engineers involved in projects
High-quality materials and installation methods
Strong warranties on structural stabilization
Higher upfront costs than competitors
Limited financing options in some regions
Appointment availability varies locally
5

AFS Foundation & Waterproofing Specialists

4.5/5
  • Average Cost: $2,500 to $9,000
Best For: Combined foundation and waterproofing repair

What We Love

AFS Foundation & Waterproofing Specialists, part of the Groundworks family, serves the Southeastern U.S. with foundation repair and waterproofing expertise. Its teams understand local soil conditions and offer tailored solutions backed by lifetime warranties. Customers consistently highlight AFS’s professionalism and thorough workmanship.

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.

Regional specialists familiar with local soil
Strong customer reviews and service guarantees
Comprehensive structural and waterproofing services
Limited to Southeastern states
Higher cost for full encapsulation
Appointment lead times in rural areas

Compare top-rated foundations pros in your area.

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6

Alpha Foundations

4/5
  • Average Cost: $2,500 to $8,500
Best For: Regional service and crawl space repair

What We Love

Alpha Foundations provides dependable foundation and crawl space repair for homeowners across Florida and Southern Georgia. Known for local expertise and consistent customer service, Alpha offers foundation stabilization, concrete leveling, and encapsulation backed by Groundworks’ warranty standards.

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.

Regional soil and climate expertise
Strong customer service reputation
Dependable warranty coverage and support
Limited to Florida and Georgia service area
Pricing fluctuates seasonally
Extended scheduling during rainy seasons
7

Alpha Structural

4/5
  • Average Cost: $3,000 to $10,000
Best For: Engineering and structural restoration

What We Love

Alpha Structural is an engineering-driven foundation and structural repair firm based in Southern California. The company specializes in hillside stabilization, seismic retrofitting, and complex structural restoration for residential and commercial properties. Licensed engineers oversee each project to ensure precision and safety.

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.

Licensed structural engineering oversight
Highly specialized seismic expertise
Excellent reputation for complex repairs
Service limited to Southern California
Higher project minimums than competitors
Permitting may extend project timelines
8

Erie Home

4/5
  • Average Cost: $3,000 to $9,000
Best For: Foundation waterproofing and protection

What We Love

Erie Home, a trusted national remodeling brand, offers foundation waterproofing and drainage services in more than 40 metro markets. Known for strong warranties and reliable installation crews, Erie applies the same customer-first approach that made its roofing division a national name.

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.

Nationally recognized multi-service brand
Strong warranty and financing options
Comprehensive home protection service
Limited structural repair offerings
Still expanding foundation services
Service quality may vary by market
9

Superior Walls of America

3.5/5
  • Average Cost: $8,000 to $20,000
Best For: Precast foundation wall systems

What We Love

Superior Walls manufactures pre-engineered, insulated foundation wall systems used in both new construction and retrofits across North America. Its Xi Series precast panels improve installation speed, energy efficiency, and long-term durability compared to poured concrete foundations.

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.

Fast installation with minimal site disruption
Excellent energy performance and insulation
Durable precast materials built to last
Primarily suited for new construction
Higher upfront cost than standard methods
Limited availability in smaller markets
10

Michels Construction Inc.

3.5/5
  • Average Cost: $5,000 to $25,000
Best For: Large-scale foundation and infrastructure projects

What We Love

Michels Construction Inc., based in the Midwest, handles foundation work for residential, commercial, and infrastructure projects nationwide. Known for safety, engineering precision, and large-scale capabilities, Michels brings industrial expertise to complex home stabilization and piling projects.

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.

Extensive engineering and construction resources
Handles large, complex foundation projects
Proven reputation for safety and precision
High project minimums for residential jobs
Primarily focused on commercial work
Scheduling may be limited for smaller projects

Other Companies to Consider

The foundation repair companies above aren’t your only choices. Compare pricing, warranties, and service areas across more top-rated providers to find the best fit.

Modernize Review Hub

Ready to take the next step? Visit the Modernize Review Hub to explore vetted foundation repair providers, compare detailed reviews, and get the insights you need to choose with confidence for your home’s foundation needs.

Best Basement Waterproofing Companies

Need to waterproof your basement alongside your foundation repair? Explore our list of the 10 Best Basement Waterproofing Companies to ensure all your homes' needs are met.

Homeowners Want to Know:

What are the most trusted foundation companies in the U.S.?

The most trusted national foundation companies are Groundworks, Olshan Foundation Solutions, Basement Systems, and Ram Jack. Each brand offers licensed repair services, lifetime warranties, and proven customer satisfaction. Groundworks operates in over 30 states, while Olshan and Ram Jack specialize in the South and Central U.S. Basement Systems leads in waterproofing and moisture control through a certified installer network.


What should I look for in a foundation repair company?

Choose a company with proper licensing, insurance, experience, and warranty coverage. Always ask for a written inspection report and detailed cost estimate before signing a contract. Reading verified customer reviews and confirming structural engineering credentials will help ensure quality work.


How do I know if my home needs foundation repair?

Common warning signs include cracks in walls or floors, doors or windows that stick, and uneven or sloping floors. You might also see gaps around baseboards, exterior brick separation, or musty crawl spaces. A professional inspection can confirm the issue and recommend solutions before damage worsens.


How much does foundation repair usually cost?

Foundation repair costs typically range from $4,000 to $9,000, depending on your home’s size and damage level. Minor crack sealing can cost $800 to $2,000, while pier installation or major structural work can exceed $10,000. Waterproofing and encapsulation projects usually cost $2,500 to $8,000.


What are the benefits of professional basement waterproofing?

Waterproofing protects your home from flooding, mold growth, and structural damage. It can also improve indoor air quality, reduce humidity, and increase resale value. A professional system ensures long-term protection and peace of mind, even during heavy rainfall.


Which foundation repair company is best for waterproofing?

Basement Systems and AFS Foundation & Waterproofing Specialists are top choices for waterproofing and moisture control. Basement Systems is known for its CleanSpace® and WaterGuard® technology, while AFS offers integrated foundation and waterproofing services backed by lifetime warranties.


Are foundation repairs covered by warranty?

Yes, most foundation repair companies provide warranties on both parts and labor. Structural piering and wall reinforcement systems often include lifetime transferable coverage, while waterproofing systems may have 20-year or lifetime guarantees. Always review warranty terms before signing a service agreement.


Can I get an estimate for foundation repair or waterproofing online?

Many companies offer virtual or online estimate tools for initial pricing. However, an in-person inspection is still needed for accurate measurements, soil testing, and damage assessment. Most pros provide free or low-cost inspections with detailed written estimates.


What foundation company has the widest service area?

Groundworks and Ram Jack have the broadest nationwide coverage, serving over 30 and 40 states respectively. Basement Systems also maintains a large North American network through certified local contractors. All three offer both foundation and waterproofing services with transferable warranties.


What is the best foundation company for regional service?

Regional leaders vary by location: Alpha Foundations and AFS serve the Southeast, Alpha Structural leads in California for seismic retrofits, and Olshan covers much of the South and Central U.S. These companies specialize in local soil conditions and regional construction challenges.


What should I ask before hiring a foundation repair company?

Ask about licenses, insurance, warranty details, financing, and recent project references. Request a detailed written estimate and confirm whether a structural engineer reviews the plan. Comparing at least two professional inspections can help you make an informed decision.


How can I compare foundation repair companies effectively?

Compare inspection quality, repair methods, warranty coverage, and customer reviews — not just price. Look for transparent estimates, clear repair timelines, and financing options. Companies that document their inspections with photos and provide licensed engineering oversight are usually the most reliable.


10. What certifications or affiliations indicate a reliable company?

Reputable companies often hold memberships with the Foundation Repair Association (FRA), National Foundation Repair Association (NFRA), or the Better Business Bureau (BBB). Certifications and lifetime transferable warranties from major manufacturers also show accountability and professionalism.


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