Serving Connecticut, Westchester and Putnam Counties

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Products & Services
Basement Waterproofing Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Basement To Beautiful Pre-finishing Wall Insulation Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
Sanidry Basement Dehumidifier
French Drain Alternatives


Crawl Space Repair Services & Products
CleanSpace Encapsulation Vapor Barriers And Liners
Turtl Access Hatch
EverLast Crawl Space Doors
Sanidry Csb Crawl Space Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl-o-Sphere Crawl Space Fan
WallCap Block Wall Sealer
SmartVent Flood Vents


Foundation Repair Services & Products
Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair
Geo-lock Wall Anchors
Geo-lock Helical Anchors
PowerBrace Bowed Wall Repair
CarbonArmor Fiber Wall Repair
SmartJack Crawl Space Support
Slab Pier Repair
Foundation Underpinning
EZ Post Deck Repair
Shotcrete Wall Restoration


Basement Finishing & Remodeling
Everlast Wall Panels
Insulated Wall Panels
Premier And Linen Ceiling Tiles: No-sag Warranty
Thermal Dry Floor Tiles
ThermalDry® Elite Plank Flooring
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Basement Egress Windows


Before and After Pictures from Stamford
SmartJack Installation in Stamford, CT

SmartJack Installation in Stamford, CT

Before After
SmartJack Installation in Stamford, CT SmartJack Installation in Stamford, CT

To be stable, strong and level, the floor above a crawl space requires solid mid-span support that's usually provided by a post-and-beam assembly. But beams are often undersized, and many contractors use wooden posts that can rot, shift and settle. When this happens, floor joists sag and other structural problems occur. The SmartJack system is a foundation repair product that provides a permanent solution to these problems.

Sump Pump, WaterGuard and CleanSpace installation in Stamford, CT

Sump Pump, WaterGuard and CleanSpace installation in Stamford, CT

Before After
Sump Pump, WaterGuard and CleanSpace installation in Stamford, CT Sump Pump, WaterGuard and CleanSpace installation in Stamford, CT

In this basement we installed a TripleSafe Sump Pump; our most reliable Sump system, with 3 levels of protection. We also installed Waterguard to drain water to the sump pump. And to finish it off we install CleanSpace to give the walls a more attractive appearance. 

Basement Transformation in Stamford, CT

Basement Transformation in Stamford, CT

Before After
Basement Transformation in Stamford, CT Basement Transformation in Stamford, CT

Before, these basement walls let moisture seep through into the basement, causing damage to the floor and walls. More than just a nuisance, the water damage created a moist environment suitable for mold growth, which can threaten both the value of the home and the health of its owners. Knowing they had to act quickly, these homeowners reached out to Connecticut Basement Systems for a lasting solution.

Once we arrived, we waterproofed the basement by installing our patented WaterGuard System, which runs along the perimeter of the basement and directs any leaking water into a sump pump. After this, Foreman Chavon Bowman replaced the damaged portions of drywall with more durable EverLast Wall Panels, which are made from inorganic materials, will not be damaged by water and can even withstand flooding. Complete with a decorative molding, these new wall panels help to give the home an improved look while also eliminating any potential for mold growth. As a result, these homeowners were quite pleased with this improved, dry basement.

Company Awards
2017 Angie's List Super Service Award
Connecticut Basement Systems has been awarded the 2017 Angie's List Super Service Award®! The Angie’s List Super Service Award honors... [Read more]
Larry Janesky award the Valley of Chamber of Commerce's Silver Medal Award
Larry Janesky was awarded the Valley Chamber of Commerce's Silver Medal Award for the Big Build at Ansonia Nature Center!... [Read more]
Best Places to Work
For the 3rd time, Basement Systems has won the Best Places to Work award for being one of the best... [Read more]
More Awards

Stamford, CT's Basement Waterproofing & Sump Pump Installation Pros

I'm extremely happy with Alberto's professionalism, knowledge, and results!...
Happy Customers Surrounding Stamford, CT
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Reviews From Stamford
Testimonials From Stamford
Ferninand was a pleasure and just great! Very informative!
Testimonial by Valentina T. from Stamford, CT
Dan was very patient, helpful and did not rush me. He explained the process for me to understand.
Testimonial by Frances G. from Stamford, CT
Very sweet, kind, professional and personable!
Testimonial by Rose L. from Stamford, CT

Trusted basement waterproofing company serving Stamford, CT & nearby areas

Does your home have issues with basement flooding, foundation settlement, or a foul-smelling crawl space? Connecticut Basement Systems provides solutions for these problems and more! Since 1987, we have helped over 85,000 Connecticut homeowners. So you can have absolute confidence in our quality solutions.

From sump pumps to basement dehumidifiers, our professionally-trained crews are here to help you confidently identify your home's problems and provide long-lasting, patented solutions, including:

  • Basement waterproofing
  • Foundation repairs
  • Crawl space repairs
  • Basement finishing
  • Air purifiers
  • And more!

Connecticut Basement Systems is the largest crawl space repair, foundation repair, basement finishing, and basement waterproofing company in the state. That is because we strive to improve the lives of our employees, customers, and ultimately the world through education and development. We have spent over 30 years cultivating an honest, sincere, and expert reputation.

Schedule a free estimate on any of our quality services to learn more. We proudly serve Stamford, CT and areas nearby.

Patented sump pumps, basement dehumidifiers, & other basement waterproofing services

Do you have problems with water in the basement, basement mold, basement flooding, or other waterproofing issues? If so, contact the experts at Connecticut Basement Systems today! Our warrantied solutions, professionally-trained crews, and quality services will create a healthy, dry basement for years to come.

Our basement waterproofing services include:

  • Sump pumps: When water enters the basement, it flows into the drainage system, to the sump basin, and then pumped out of the house, preventing water in basement and basement flooding. We provide a variety of sump pump systems for every level of protection needed - even during a power outage!
  • Basement drainage systems: Full-perimeter french drains keep your basement dry and free from water. Whether you have thin foundation floors, iron ochre, or issues with doors and entryways, we provide drainage systems for all situations.
  • Basement dehumidifiers: Our dehumidifiers eliminate moisture and mold problems with a powerful blowing motor that circulates dry air throughout the basement. Plus, each energy-efficient system includes a comprehensive warranty!
  • Replacement windows: Do you have leaky basement windows or egress windows? Replacement windows can eliminate these problem areas and create a drier, more energy-efficient below-grade space.

We are Stamford's trusted basement waterproofing company. For over 30 years, we have led the waterproofing industry, installing patented sump pumps, basement dehumidifiers, french drain systems, and more. Schedule a free basement waterproofing estimate today. We proudly serve Stamford, CT and areas nearby.

Permanent foundation repair services in Stamford, CT

If your home has issues with floor cracks, bowing walls, foundation settlement, a leaning chimney, or other foundation problems, contact the experts at Connecticut Basement Systems today. These issues don't just affect your home's appearance and value, but they can also negatively impact its safety. For this reason, it is better to schedule a foundation inspection and get foundation repairs sooner than later.

With Supportworks, Connecticut Basement Systems is a part of a nationally renowned network of foundation repair specialists, giving us exclusive access to professional training, warrantied products, and best practices proven by hundreds of contractors across the globe.

Connecticut Basement Systems has provided permanent solutions to foundation heave, bowing walls, settling foundations, and more for over 30 years. Our foundation repair systems are customizable, meaning you never get more or less than what is needed.

Our foundation repair services include:

  • Foundation piers
  • Wall anchors
  • Crawl space support posts
  • Foundation wall repairs
  • And more!

Schedule a foundation inspection or a free foundation repair estimate to learn more. We proudly serve Stamford, CT and areas nearby.

Reliable Crawl space repairs & encapsulations in Stamford

Many factors play a significant role in keeping your house comfortable, energy-efficient, and secure. The crawl space can be the biggest of all. If your leaky, dirt crawl space begins to rot, grow mold, or sag, this will definitely cause harm to the rest of the home.

But there is no reason to worry - Connecticut Basement Systems specializes in crawl space waterproofing and repair. We can seal the below-grade space from the outside, control the humidity, perform structural repairs, and provide other crawl space solutions to create a healthier, drier, and safer space.

Our crawl space repair solutions include:

  • Crawl space encapsulation
  • Vapor barriers
  • Crawl space dehumidifiers
  • Crawl space insulation
  • Crawl space jacks
  • And more!

If your home has a sagging, dirt crawl space, contact the professionals at Connecticut Basement Systems and schedule a free crawl space encapsulation and repair estimate to learn more. We proudly serve Stamford, CT and areas nearby.

Stamford's professional basement finishing company

Are you tired of your dreary, unfinished basement? Contact the basement remodeling experts at Connecticut Basement Systems. Whether you are dreaming of creating a lavish entertainment room or cozy downstairs apartment, we can help you build the basement of your dreams!

Unlike other finishing contractors, we install remodeling products specially designed for the basement. That means they stand up to moisture, mold, and other common environmental factors associated with the below-grade space. Plus, our basement finishing system provides insulating qualities, dampens noise, and can be customized to fit your unique basement finishing ideas - the only limit is your imagination!

Our basement finishing system includes:

  • Basement flooring & wall products
  • Ceiling tiles
  • Basement dehumidifiers
  • Replacement windows
  • Egress windows & window wells
  • And more!

Schedule a free basement finishing estimate to get started! We offer our remodeling solutions in Stamford, CT and nearby.

Quality basement waterproofing, foundation repair, & crawl space repair services since 1987

At Connecticut Basement Systems, we want to exceed each customer's expectations - no matter how big or small the project. As a three-time winner of the CT Better Business Bureau's Torch Award for Marketplace Ethics, we have proven our integrity and will continue to do so.

Whether your home has water in basement, foundation settlement, or a humid crawl space, we provide quality solutions for these problems and more! Schedule a free service estimate to get started today. We proudly serve Stamford, CT and nearby areas.

Case Studies From Stamford
This Stamford, CT crawl space was damp, drafty and a perfect environment for mold growth. The homeowner became concerned with this environment...
This Stamford, CT home's basement was in bad shape. They suffered so much water damage that it was pooling in the corners near their heating systems...
This Stamford, CT homeowner discovered cracks in her leaning foundation walls and water on her basement floor. As if that was not enough to worry...
Press Releases From Stamford
Connecticut Basement Systems is giving a $7500 basement waterproofing package to the owners of 'Conn...
Connecticut Basement Systems is giving a $7500 basement waterproofing package to the owners of "Connecticut's wettest basement."... [Read more]
Job Stories From Stamford, CT
Basement Waterproofing: Stamford, CT

This homeowner was struggling with water in their basement and they decided it was time to call us at Connecticut Basement Systems to solve their problems. After scheduling an appointment, one of our Sales Consultants, Jimmy Stablien, went out to the home to assess the issues and provide the correct solution. He informed the homeowner that they would need our top-performing waterproofing systems to keep their basement dry for the long term.

The next step would be for one of our Foremen, Krzys Wilk, and his crew to work on the installation of this project. They installed a TripleSafe sump pump along with a WaterGuard perimeter drain to collect and pump out the water from the home at a safe distance. The WaterGuard drain goes below the perimeter of the foundation so that it can collect any water coming in from the walls or floors. Then that gets drained into the sump pump, which will pump all the water out through a discharge line whenever the water reaches a certain level. Without these systems, the basement would still get water and not be protected. But now any water coming in will always have a way out of the home and this basement will stay dry. 

Basement Waterproofing in Stamford, CT

A homeowner in Stamford, CT was getting water in their basement and wanted to find a way to prevent it. They made the right decision when they called us at Connecticut Basement Systems. After scheduling an appointment, one of our Sales Consultants, Bill Caple, went out to the home to assess the issues and provide a proper solution. He informed the homeowner that they would need a combination of our waterproofing systems so water is no longer their issue. 

Soon after, it would be time for one of our Foremen, Sidney Avis, and his crew to get to work on the project. They installed a DryTrak drainage system to collect any water coming in from the walls and ground. This is used over WaterGuard because the floor is monolithic, so jackhammering in the ground is not going to work. It is due to the concrete being poured differently in the home. Then they installed a TripleSafe sump pump to take that collected water and pump it out of the home at a safe distance. This is done through a discharge line. CleanSpace was also installed on half of the wall to act as a vapor barrier. Now this basement is waterproofed and the homeowner is happy with the results! 

Basement Waterproofing in Stamford, CT

These homeowners in Stamford, CT could not bear to deal with their constant water damage and mold growth, so they decided to contact Connecticut Basement Systems. After speaking with Sales Consultant, James Stablein, they were ready to waterproof their basement. Foreman Noel Harvey and his team started by installing our WaterGuard below-floor drainage system and our CleanSpace Wall System. Both of these products guide unwanted water to our TripleSafe Sump Pump, not pictured, to pump it out of the home. With these products working together this basement now remains dry and free of mold growth. These homeowners are thrilled with the waterproofing job and to leave their worry about water and mold growth in the past!

Basement Waterproofing in Stamford, CT - Photo 1Basement Waterproofing in Stamford, CT - Photo 2
Basement Waterproofing with WaterGuard and CleanSpace in Stamford, CT

These homeowners from Stamford, CT were tired of dealing with their constant water and mold problems, so they decided to give Connecticut Basement Systems a call. Speaking with Sales Consultant James Stablein, the residents were ready to install the WaterGuard drainage system and CleanSpace Wall System. Foreman, Noel Harvey, and his team installed these products to direct the water to our TripleSafe Sump Pump, not pictured, to be pumped out of the home and keep it dry. The CleanSpace also brightened up the basement to give it a clean appearance. These homeowners are thrilled with the excellent results achieved in their basement!

Basement Waterproofing with WaterGuard and CleanSpace in Stamford, CT - Photo 1Basement Waterproofing with WaterGuard and CleanSpace in Stamford, CT - Photo 2
Waterproofing in Stamford, CT

These homeowners in Stamford, CT continually battled against water damage and mold growth in their basement. They decided it was finally time to call Connecticut Basement Systems for solutions to these problems. After speaking with Sales Consultant, James Stablein, they developed a game plan. Foreman Noel Harvey, and his crew first installed our WaterGuard drainage system with our TripleSafe Sump Pump system to direct all the leaking water out of the basement. Additionally, our crew installed our CleanSpace Wall System to prevent mold growth and provide your basement with a clean appearance. Finally, for the final touch, our crew installed our SaniDry Sedona Dehumidifier to control humidity levels and eliminate musty odors. These homeowners were delighted with our waterproofing job and to be stress-free from water and mold issues!

Waterproofing in Stamford, CT - Photo 1Waterproofing in Stamford, CT - Photo 2
Waterproofed Basement in Stamford, CT

This Stamford, CT basement constantly battled water damage and mold growth. These homeowners were eager to find a solution to these problems. They decided to call Connecticut Basement Systems and after speaking with Sales Consultant, James Stablein, they were ready to get started! Foreman, Noel Harvey, and his team began by installing our WaterGuard drainage system, along with our TripleSafe Sump Pump system to pump the seeping water out of the property. Our team also installed the SaniDry Sedona Dehumidifier next to the TripleSafe sump pump to control humidity levels and provide extra protection against mold growth. Lastly, to brighten up this basement, our team installed the CleanSpace Wall System which also protects against water vapor and unwanted mold. These homeowners were very satisfied and are eager to use their basement to its full potential!

Waterproofed Basement in Stamford, CT - Photo 1Waterproofed Basement in Stamford, CT - Photo 2
WaterGuard System in Stamford, CT

This Stamford home would frequently experience a wet basement every time it rained. The water was damaging their storage items and leaving a musty odor. The homeowner was frustrated and decided to find a solution with Connecticut Basement Systems.  

On the day of the appointment, Sales Representative Steve Godbout arrived at the home to inspect the basement. He identified the problem and knew the perfect solution. He recommended a full perimeter drainage system (WaterGuard System) that would internally collect the excess water and channel it to a sump pump. From there, the water in the sump pump system will discharge the water away from the home. This will ensure to keep the basement waterproofed. The homeowner was impressed with the system and knew that this is exactly what his basement needed to keep dry.

On the day of production, Foreman Krzys Wilk and his team installed the WaterGuard system professionally and efficiently. They first had to excavate the perimeter of the floors to be able to have a place the system. Once the system is placed internally, it is back filled with gravel and then sealed up with cement. This homeowner decided to have a Super sump pump installed and CleanSpace liner, which will help prevent air and moisture from entering and this will help eliminate the musty odor. Once everything was installed, the basement was transformed and waterproofed! The homeowner was impressed and happy that he found a permanent solution. 

Crawl Space Transformation in Stamford, CT

This Stamford crawl space was damp and drafty causing it to be an unhealthy environment. This concerned the homeowner because it was affecting the entire home. The crawl space had a gross, musty odor and was the perfect spot for mold growth. Wanting a cleaner and healthier crawl space, he decided to reach out to Dr. Energy Saver of CT. 

The solution for this crawl space was to install CleanSpace liner which acts as a moisture and air barrier. This durable product will prevent mold from growing since there will be no moisture to create such an environment. Not only was CleanSpace installed but also a SaniDry Sedona dehumidifier. This product will keep humidity at 55% ensuring that the air quality is superb all year long as well as getting rid of that nasty musty odor. The combination of all of these products made the crawl space a cleaner and healthier environment, just what the homeowner had wanted!

Need to transform your crawl space? Give us a call to schedule your free, no obligation estimate! 1-855-200-7133

EverLast Windows in Stamford, CT

This Stamford basement was dark and uninviting. The homeowner wanted to make her basement more comfortable and energy efficient. Wanting to find a solution, she decided to call and set an appointment with Connecticut Basement Systems. 

On the day of the appointment, Sales Representative Steve Godbout arrived at the home to give an inspection of the basement. He concluded that in order to brighten the area and to improve the efficiency, EverLast windows would need to be installed. A Sunhouse paired with the windows will make the area so much brighter. Steve explained the benefits of the products and went over the installation process. She decided that this was the basement needed and moved forward with the project.

On the day of installation, Chavon Bowman and his team arrived at the home and installed the windows professionally and efficiently. The transformation from the old windows to the new were quite incredible. The EverLast Windows paired with the Sunhouse let in so much natural light. The Sunhouse is a window well that attracts natural light and prevents weeds from growing near your new windows! The EverLast windows will improve the basements efficiency with its double-pane glass which will prevent heat loss.

The homeowner was thrilled with the windows and window well because it is exactly what she wanted. The basement is now a brighter and more inviting space for all to enjoy!  

EverLast Windows in Stamford, CT

This Stamford basement was experiencing cold drafts in his basement and the homeowner was paying a high electric bill every month. The basement was also outdated and the homeowner wanted something that would make the area more attractive. Wanting a solution that would satisfy his energy efficiency and aesthetic concern, he called Connecticut Basement Systems to schedule an appointment. 

On the day of the appointment, our Sales Representative Don Godbout, arrived at the home to inspect the basement. He suggested installing EverLast windows would be the perfect solution for this homeowner’s needs. The homeowner agreed and quickly scheduled a day for installation.  

On the day of installation, Krzysztof and his production crew installed the EverLast windows. These windows were the best option because they are built with reinforced vinyl frames that will not rust or rot. Also, they have insulated glass so heat loss will never be a problem, which will save money on the electric bill. These windows really pop in any basement and brings in a lot of natural light. 

The homeowner was thrilled with the windows because it solved all of his concerns and made his basement much more pleasant! 

Want to upgrade your windows? Give us a call for your FREE estimate! 1-855-200-7133

WaterGuard Keeps Home Dry in Stamford, CT

Griffin H. is a loyal and longtime customer that first used Connecticut Basement Systems more than 20 years ago. When he purchased a second home this year, and found that his basement had a water problem, he knew exactly who to call.

The same week he spoke to Connecticut Basement Systems, Joe met with Griffin at his Stamford home. He recommended the Waterguard interior drainage system, along with a Trench Drain drainage channel, which would prevent the water from getting back into areas it doesn’t belong. When Marcio and his crew arrived at the house, they quickly and successfully installed the systems, along with an alarm to alert Griffin of any further issues. They further protected his property with the usage of a Lawnscape outlet in the backyard, which can be easily cleared by the homeowner. 

A longtime customer like Griffin knows that when waterproofing a basement, a homeowner needs the expertise and permanent solutions that Connecticut Basement Systems provides to keep his home dry for many years to come!

Waterproof First Before Finishing Your Stamford, CT Basement

After two major storms brought unwanted water into Al Y.’s basement, he was ready for a long term solution.  Beyond just waterproofing, he was looking to turn the unfinished basement in his Stamford home into a usable space.  He researched companies online and contacted Connecticut Basement Systems for an estimate.  

Soon after, Mike arrived at his house and discussed his interest in transforming his basement into a family room.  First though, Al needed to take care of the water issue once and for all.  Sid Avis and his crew installed 60 feet of DryTrak, a SuperSump sump pump system, along with a WaterWatch alarm, and the IceGuard system as well.  That way, water would stay out not only when it rained, but when it snowed as well.  

With the basement now completely protected, Al is ready to begin the process to refinish his basement through Connecticut Basement Systems so that he can turn his formerly wet and unfinished basement into a room the entire family can enjoy.

Water Seepage into Stamford, CT Basement

When Tony M. found cracks in his basement walls, identifying that as the source of his water woes, he headed online to research companies that could help him.  He came across Connecticut Basement Systems and sent an email explaining his issue.  Waterproofing specialist Tarn Granucci visited him soon after and came up with a plan to keep the water out.

In just one day, Cisco and his crew used the FlexiSpan Foundation Wall Crack Repair System, and installed a TripleSafe sump pump.  A few months later, Tony noticed another issue where water was coming up through the basement floor.  He called Connecticut Basement Systems again, this time for a complete and permanent solution.  A second sump pump, along with the WaterGuard interior drainage system and a LawnScape outlet in his yard, took care of the problem.  

On top of waterproofing Tony’s basement, Connecticut Basement Systems also tested and sealed the entire area for radon.  Tony’s basement is no longer a source of stress and is instead, a dry and safe space to be in.


Work Requests From Stamford, CT
Project Location: Stamford, CT
Need to install new drop ceiling in basement
Project Location: Stamford, CT
My basement floods ever time it rains
Project Location: Stamford, CT
During heavy rainstorms getting water into our finished basement.
Project Location: Stamford, CT
I would like seal/encapsulate my crawlspace
Project Location: Stamford, CT
Water in basement and mold concerns
Project Location: Stamford, CT
Floors are not level
Project Location: Stamford, CT
We have some minor wet spots in our basement following heavy rains.
Project Location: Stamford, CT
RADON mitigation. some foundation cracks, effervescence on 1 cellar wall.
Project Location: Stamford, CT
4 attached units with water in the basements
Project Location: Stamford, CT
Basement water during the harsh rain storms lately. Looking for an inspection of basement to uncover the sure of a few different potential entry points and issues.
Project Location: Stamford, CT
Unfinished basement in 100 year old house. Frequently damp and musty. Moisture concerns when the water table is high. Whatever coating was put in the walls is flaking off. We've also had to rip out drywall and rotted wood because of damp.
Project Location: Stamford, CT
Damp/mildrew smell like our basement is coming into the kitchen, and we'd like to see if there's a solution to stop water from coming into the basement.
Project Location: Stamford, CT
Need dehumidifier in basement of recent house purchase
Project Location: Stamford, CT
Water retention near an outside wall and in outdoor kitchen
Project Location: Stamford, CT
No concerns - just want to know how much to refinish the basement
Project Location: Stamford, CT
Need repair/updating work done to fieldstone foundation on antique home in Stamford, CT.
Project Location: Stamford, CT
Crawl space condensation on pipes and possible mold
Project Location: Stamford, CT
New Sump Pump setup in crawl space and mold removal.
Project Location: Stamford, CT
This person has filled out the Star Power Pro survey on that you sent them and is interested in another service you provide: Crawl Space Repair. Please contact them to schedule a new appointment for this service. This is a no-charge lead.
Project Location: Stamford, CT
Looking to make basement more of a usable soace
Serving the following Stamford, CT zip codes
06901, 06902, 06903, 06904, 06905, 06906, 06907, 06910, 06911, 06912, 06913, 06914, 06926, 06927