A wet basement is more than just a hassle. It can threaten your home’s structure, air quality, and long-term value. The American Society of Home Inspectors reports that over 60% of U.S. homes deal with some kind of basement moisture, and if left untreated, water damage can cause mold, cracks in the foundation, and expensive repairs. Picking the right waterproofing company ensures you get an accurate diagnosis and a system installed by skilled professionals.
This guide reviews the top basement waterproofing companies for 2026, covering their service areas, unique systems, pricing, warranties, and honest pros and cons.
Basement Systems: Best for patented systems and nationwide reach
Thrasher: Best for full-service waterproofing in the Midwest
Groundworks: Best for proprietary systems with in-house crews
Ram Jack: Best for structural damage paired with waterproofing
Acculevel: Best for Indiana and surrounding Midwest states
Erie Home: Best for bundling waterproofing with roofing or
Our Top Picks
4.5/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Full-service, research-backed waterproofing
Long track record of experience with 80,000+ homeowners served
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
How We Rated the Best Basement Waterproofing Companies
We rated each basement waterproofing company on a 1 to 5 scale using seven factors: product selection and quality (25%), pricing and value (20%), customer experience (15%), warranty and policy (12%), installation services (10%), availability and access (10%), and brand reputation (8%). Learn more about how we rate basement waterproofing companies in our rating methodology.
Best For: Proprietary interior and exterior waterproofing in the Midwest and Northeast
EverDry Waterproofing
4.5/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
EverDry is a strong basement waterproofing option for homeowners in its service area. Its research-backed interior and exterior basement waterproofing services combined with multiple financing options and a transferrable, annually extendable warranty set EverDry apart. Each location is locally owned and operated, so be sure to check local reviews when choosing a waterproofing company.
Services Offered: Multi-step waterproofing that addresses both surface water and hydrostatic pressure.
Warranty: Annually extendable, transferrable to new homeowners (for the lifetime of the structure) if you sell your home.
Financing: Multiple flexible options including direct lenders, connecting homeowners with HELOC providers, and low minimum monthly payments.
What We Love
Full-service, research-backed waterproofing
Long track record of experience with 80,000+ homeowners served
Transferrable, annually extendable warranty
Watch Out For
No published pricing as contractors need to inspect your home before providing an estimate
Independent locations can mean experience varies
$1,800 to $4,000 per wall
$7,500 to $15,000 (full waterproofing system)
Modern Drainage System®: EverDry’s exterior waterproofing system. A trench is dug along the outside foundation wall, cracks are sealed, and a drainage system is installed to redirect surface water away from the home.
Pressure Relief System®: The interior complement to the exterior system. Addresses hydrostatic pressure beneath the basement floor that can cause seepage, discoloration, and wall or floor cracks. Includes a pressure relief pump and optional Coveplate® and Durashield® products.
Best For: Nationwide dealer network and custom systems
Basement Systems
4.4/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Basement Systems is a top choice for homeowners looking for a waterproofing solution that is backed by a national company but installed by well-trained local crews. Its patented products, consistent dealer training, and transferable lifetime warranties offer homeowners both wide access and strong long-term protection. However, installation quality and pricing can vary by dealer region, so it’s important to check these details before you sign a contract.
WaterGuard® Interior Drainage System: This patented perimeter drain is installed at the footing level, not in the concrete slab. This design helps reduce the risk of clogs and lowers long-term maintenance. It’s a good option for basements that often have water seeping in along the walls.
TripleSafe™ Sump Pump: This system uses three pumps — a primary pump, a backup pump, and a battery-powered emergency pump. It’s designed for homes in areas that often lose power or have high water tables.
Best For: Full-service waterproofing in the Midwest
Thrasher Foundation Repair
4.3/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Thrasher is a leading choice for Midwest homeowners who want one company to handle both basement waterproofing and foundation repair, sometimes even in a single visit. The company is known for honest assessments, skilled crews, and a strong transferable warranty program. However, Thrasher only serves six Midwest states, so it’s not available everywhere.
Services Offered: Interior and exterior waterproofing, sump pumps, foundation repair, crawl space encapsulation, wall anchors, piering
Warranty: Lifetime transferable on waterproofing systems
Financing: Available; terms vary by project
What We Love
Handles waterproofing and foundation repair
Strong Midwest reputation since 1975
Honest, no-pressure inspection process
Watch Out For
Only available in six states
Higher cost for combined repair services
May schedule weeks out in spring season
Interior drainage system: $3,000 to $6,500
Crawl space encapsulation: $4,000 to $8,000
Foundation repair + waterproofing combo: $7,000 to $10,000+
Sump pump installation: $1,200 to $2,500
CleanSpace® Crawl Space Encapsulation: This is a heavy-duty vapor barrier system that seals crawl space walls and floors to keep out moisture, mold, and outside air. It’s especially effective in Midwest climates where humidity levels can change a lot.
TrenchDrain™ Interior System: Thrasher’s interior perimeter drainage channel routes water away from foundation walls and into the sump system before it reaches your floor.
Best For: Proprietary systems with in-house installation crews
Groundworks
4.1/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Groundworks is a well-known name in the industry, offering its own product line and using in-house installers instead of subcontractors. The company operates in 33 states, giving it one of the largest service areas among waterproofing companies. Its AquaStop™ system combines drainage, sump protection, and vapor management into a single solution.
Services Offered: Interior drainage, sump pumps, dehumidifiers, crawl space repair, foundation repair, vapor barriers
Warranty: Lifetime transferable on waterproofing systems
Financing: Available; subject to credit approval
What We Love
Proprietary, integrated system design
In-house installers, not subcontractors
Wide national footprint in 30+ states
Watch Out For
Service quality varies by regional branch
Premium pricing for full system installs
Appointments book weeks out in busy seasons
Interior drainage installation: $2,000 to $5,000
Full AquaStop™ waterproofing system: $5,000 to $10,000+
Sump pump + battery backup: $1,200 to $3,000
Crawl space encapsulation: $3,500 to $8,000
AquaStop™ Waterproofing System: Groundworks’ flagship system pairs its BasementGutter™ interior drainage channel with its AquaStop™ sump pump and CrawlSeal™ vapor barrier for a complete solution. Best suited for basements with multiple water entry points.
Best For: Structural damage paired with waterproofing
Ram Jack
4/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Ram Jack is a good choice when basement water problems are combined with structural issues like bowing walls, uneven floors, or foundation cracks that a waterproofing-only company can’t fix. Ram Jack is best known for its engineered steel pier and wall anchor systems, but its waterproofing division also offers drainage, sealing, and vapor management. The company works through licensed dealers in many parts of the U.S., but availability varies by region.
Services Offered: Interior drainage, crack injection, wall anchors, sump pumps, helical and steel piers, crawl space repair
Warranty: Lifetime limited warranty on structural systems; varies for waterproofing
Financing: Available through dealer network
What We Love
Handles structural and waterproofing together
Engineered systems for severe conditions
Lifetime limited warranty on structural work
Watch Out For
Higher costs than waterproofing-only companies
Dealer availability limited in some regions
Complex projects may take weeks to schedule
Interior drainage or crack sealing: $2,500 to $6,000
Foundation repair + waterproofing combo: $8,000 to $12,000+
Sump pump or wall sealing: $1,000 to $2,500
Ram Jack HydroGuard™ Drainage System: This interior drainage system is made to work alongside structural repairs. It channels water to the sump pump while Ram Jack’s pier and anchor systems fix the underlying cause of wall movement. It’s best for basements where water problems are caused by foundation shifting.
Best For: Transparent, no-pressure service in the Midwest
U.S. Waterproofing
3.8/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Midwest (IL, WI, IN, and parts of neighboring states)
U.S. Waterproofing stands out for its customer-first approach, offering free inspections, written estimates, and no high-pressure sales. Its Dry Basement Guarantee program includes a transferable warranty and a post-install inspection. However, U.S. Waterproofing only serves the Midwest, so homeowners in other regions will need to look elsewhere. The company also does not provide full foundation repair services for structural problems.
Services Offered: Interior drain tile systems, crack injection, sump pump installation and replacement, exterior waterproofing, window well drains
Warranty: Transferable lifetime warranty through Dry Basement Guarantee program
Financing: Available on qualifying projects
What We Love
No-pressure, educational consultation approach
Transferable lifetime warranty program
Decades of established Midwest track record
Watch Out For
Only serves Illinois and nearby Midwest states
No structural foundation repair division
Smaller national resource base than top competitors
Crack injection or minor sealing: $500 to $1,500
Interior drainage system: $3,000 to $6,000
Full waterproofing project: $5,000 to $7,000
Dry Basement Guarantee Program: This is U.S. Waterproofing’s main service, combining interior drain tile installation, a post-install inspection, and a transferable lifetime warranty. The warranty transfers to the next owner when you sell your home, which can be a strong selling point in a competitive real estate market.
Best For: Minnesota, North Dakota, and nearby states
American Waterworks
3.6/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
American Waterworks is a strong regional choice for homeowners in the Midwest who want professional waterproofing at local prices, not national-brand rates. As a certified Basement Systems dealer, the company can install patented WaterGuard® and TripleSafe™ systems while keeping local pricing and scheduling. However, its regional focus means it’s not available outside this area, and it doesn’t offer as many structural repair services as larger companies.
Warranty: Lifetime transferable (as a certified Basement Systems dealer)
Financing: Available on qualifying projects
What We Love
Access to proven Basement Systems products
Regional pricing competitive with local contractors
Lifetime transferable warranty backed by Basement Systems
Watch Out For
Only serves a small subset of the Midwest
Limited structural or foundation repair services
Less name recognition than national competitors
Best For: Foundation repair and waterproofing in the South
Olshan Foundation Solutions
3.4/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Olshan Foundation Solutions has been in business for over 90 years, offering both waterproofing and foundation repair services, mainly in the southern part of the U.S. Its WaterLock™ Plus System combines interior drainage with wall-sealing membranes for long-lasting protection. Olshan’s technicians customize each solution to fit the specific conditions and soil at your site.
Services Offered: Interior and exterior waterproofing, sump pump installation, foundation repair, piering, crawl space moisture control
Warranty: Lifetime transferable warranty on most systems
Financing: Available; terms vary by market
What We Love
Nearly 100 years of industry experience
Handles both waterproofing and structural repair
Strong warranty coverage on most systems
Watch Out For
Premium pricing in metro and urban markets
Not available in many Northeast, Mid-Atlantic, or Pacific Coast markets
Customer experience reviews can be inconsistent
Interior drainage system: $3,000 to $6,000
Comprehensive waterproofing: $6,000 to $10,000
Moisture barrier installation: $1,500 to $3,500
WaterLock™ Plus System: This is Olshan’s main waterproofing solution, combining a wall drainage membrane, a perimeter drain tile, and a sump pump. The transferable lifetime warranty is one of the strongest in the industry for projects that include both waterproofing and structural repairs.
Best For: Crawl space waterproofing and encapsulation in the Midwest
Acculevel
3.4/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Midwest (IL, IN, IA, KY, MI, MO, OH, WI) + PA & VA
Acculevel is a dependable, family-owned contractor with a solid reputation in the Midwest. The company is known for clear pricing and responsive customer service, which is helpful in a field where contractors can be hard to compare. Acculevel specializes in interior drainage, crawl space encapsulation, and foundation stabilization, and offers a life-of-structure warranty on most waterproofing jobs.
Warranty: Lifetime transferable warranty on most installations
Financing: Available on qualifying projects
What We Love
Transparent, upfront pricing model
Specialized crawl space waterproofing expertise
Responsive family-owned service approach
Watch Out For
Does not serve the Northeast, South, or West
No exterior waterproofing services offered
Smaller service network limits scheduling flexibility
Interior drainage system: $2,500 to $5,000
Crawl space encapsulation: $3,000 to $7,500
Sump pump installation: $1,000 to $2,500
AccuDry™ Crawl Space Encapsulation System: This system uses a heavy-duty vapor barrier on crawl space walls and floors, along with a sump pump and dehumidifier, to keep out ground moisture and prevent mold. It’s a good fit for older homes in Indiana and Ohio, where crawl spaces often lack proper ventilation.
Best For: Homeowners bundling waterproofing with other home exterior improvements
Erie Home
3.1/5
Modernize RatingThis rating was determined by the Modernize Editorial Team based on factors such as customer reviews, product quality, warranties, company reputation, and service coverage. Our ratings are editorially independent and are not influenced by our advertising or partnership relationships.
Midwest (IN, KY, MI, NY, OH, WI; waterproofing not available in all locations where Erie Home operates)
Erie Home scores lower than most competitors on this list because basement waterproofing is not its primary specialty — the company is better known for roofing, gutters, and home exterior services. Its waterproofing division is available in select markets and offers interior drainage and sump pump solutions that can be combined with other Erie Home projects.
Homeowners who already plan to work with Erie Home on roofing or gutters may benefit from the convenience. Those whose primary need is waterproofing are better served by a company with deeper expertise in this category.
Services Offered: Interior waterproofing, sump pump installation and backup, dehumidification, gutter and exterior water management
Warranty: Available; terms vary by service and market
Financing: Available nationally; multiple plan options
What We Love
Convenient when bundling with roofing
Financing options available nationwide
Established brand with broad home service experience
Watch Out For
Waterproofing is not its primary specialty
Limited availability in some markets where Erie Home operates
Fewer proprietary waterproofing systems
Interior waterproofing system: $3,000 to $6,000
Sump pump and battery backup: $1,200 to $2,500
Complete basement package: $6,000 to $9,000
Erie Shield Waterproofing Program: This is Erie Home’s bundled interior waterproofing solution, which includes a perimeter drainage channel, optional sump pump upgrades, and a dehumidifier. It’s most cost-effective when combined with a roofing or gutter project, where Erie Home can coordinate all the work.
What Affects the Cost of Basement Waterproofing?
Basement waterproofing costs can range from under $1,500 for a simple crack repair to over $12,000 for a full interior drainage and foundation repair project. Here are the five main factors that affect your final price.
Basement size: Larger basements need more drainage channels, bigger sump basins, and take longer to install, so they cost more than smaller spaces like crawl spaces.
Severity of water intrusion: Fixing a minor wall crack is much cheaper than waterproofing a basement that floods often or has hydrostatic pressure, which is the force of groundwater pushing against your foundation walls.
System type:Interior drainage systems usually cost less than exterior waterproofing, which requires digging around the foundation and adds to labor and material costs, but may be needed for some water problems.
Foundation type: Poured concrete walls are easier and cheaper to waterproof than block foundations, which can trap water in their hollow cores and are more expensive to seal properly.
Geographic labor rates: Waterproofing costs are 20% to 40% higher in big cities like Chicago or Washington, D.C. compared to rural or lower-cost areas for the same work.
Need foundation repair alongside your waterproofing project? Explore our list of the Best Foundation Repair Companies to make sure all of your home’s needs are covered.
Or ready to take the next step? Visit the Modernize Review Hub or see the Best Basement Waterproofing Pros Near You to compare vetted basement waterproofing contractors, read verified homeowner reviews, and connect with trusted pros for a dry, healthy basement.
FAQs About Basement Waterproofing Companies
Groundworks and Basement Systems are two of the most widely trusted brands, known for professional-grade systems, certified installers, and transferable warranties.
Most homeowners spend $1,500 to $7,000 depending on basement size, drainage needs, and local labor rates. Larger structural repairs or combined foundation work can exceed $10,000.
Yes — most leading providers offer lifetime transferable warranties for interior waterproofing systems and 10 to 20 years for sump pumps and barrier materials.
Groundworks, Basement Systems, and Erie Home operate in the most states, with local branches or dealer networks ensuring consistent service.
The Basement Doctor specializes in interior systems designed for finished basements, offering clean installations and humidity control solutions.
Yes. Companies such as Groundworks, Ram Jack, and Olshan Foundation Solutions provide both foundation stabilization and basement waterproofing services for homes with structural issues.
Ask about warranty terms, installation method (interior vs. exterior), drainage options, and cleanup process. Always request a written estimate and proof of insurance.
Signs include standing water, wall cracks, musty odors, or peeling paint. A professional inspection can identify the source of moisture and recommend the right system.
Yes — nearly all major waterproofing contractors install or replace sump pumps as part of their system packages, often with optional battery backups for power outages.
Basement Systems and Acculevel balance affordability, system customization, and warranty protection — ideal for homeowners seeking reliable results at moderate cost.
