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
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Basement Egress Windows


Before and After Pictures from New Canaan
RockWell Egress Window installation in New Canaan, CT

RockWell Egress Window installation in New Canaan, CT

Before After
RockWell Egress Window installation in New Canaan, CT RockWell Egress Window installation in New Canaan, CT

In cold climates, winter winds will beat against your basement windows, rapidly pulling heat away from your home. The cold wind can lead to serious energy losses, especially if you have single-paned steel windows. By installing a basement window well with a clear plastic cover, you can hold back those cold winds, protecting your windows and saving you energy.

Basement Waterproofing in New Canaan

Basement Waterproofing in New Canaan

Before After
Basement Waterproofing in New Canaan Basement Waterproofing in New Canaan

This basement in New Canaan had severe mold and water damage to its walls and floors. The corner of this wall was turning black and spreading wider and wider. Ground water was building up behind the walls and up through the floor, causing the floor and walls to discolor. This homeowner wanted a basement that was waterproofed and rid of future problems. They gave us a call at Connecticut Basement Systems and we turned their basement into a healthy, clean space. We installed our SuperSump sump pump. It is an industry leading pump equipped with its own backup battery. Giving you peace of mind in case your power were to ever go out you don't have to worry about the SuperSump not working, because it will automatically keep preforming. It offers an effective and reliable solution to your basement water issues. This homeowner couldn't be happier with his new waterproofed basement , now equipped to take on potential water flowing in.

ThermalDry Installation in New Canaan, CT

ThermalDry Installation in New Canaan, CT

Before After
ThermalDry Installation in New Canaan, CT ThermalDry Installation in New Canaan, CT

This New Canaan family was looking for a way to make their unfinished basement a little more aesthetically pleasing, while also protecting their floors against water from seaping into the cement. They gave us a call at Connecticut Basement Systems, and we were happy to lead them in the right direction!

Our System Design Specialist, Don Godbout, came out to the family's home, and helped them decide the best solution that would fit their needs. They quickly decided that our ThermalDry Flooring System would be a great addition to their basement. We brought out our expert foreman, Kryz Wilk to get the job done. His team worked dilgently to install our Thermal Dry Flooring system with a beautiful Walnut finish. ThermalDry® finished basement flooring tiles are available in a variety of styles and colors, and its snap-together design installs directly over concrete floor. It also has it's own built-in drainage system, and you'll never see any moisture or mold damage!

This family is much happier with their beautiful basement floor, and can rest easy in knowing they'll have a dry basement for years to come!

Give us a call for your FREE waterproofing estimate today!

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

Reputable Basement Waterproofing & Crawl Space Repair in New Canaan, CT

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Happy Customers Surrounding New Canaan, CT
Work Requests

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Reviews From New Canaan
Testimonials From New Canaan
Besides the wonderful products from Basement Systems, the thing that impressed me the most was the the...
Testimonial by Priscilla T. from New Canaan, CT
I saw your trucks everywhere...
Testimonial by Susan K. from New Canaan, CT

New Canaan, CT's expert in basement waterproofing, foundation repair, & more

Connecticut Basement Systems has been your trusted home improvement company providing reliable basement waterproofing, foundation repair, crawl space encapsulation, basement finishing, and more to over 85,000 Connecticut homeowners since 1987. As a three-time winner of the CT Better Business Bureau's Torch Award for Marketplace Ethics, we are committed to creating an honest and reliable experience with our customers.

Whether you need a moisture-proof basement waterproofing system complete with a sump pump or permanent foundation settlement repairs, we provide these solutions and much more!

Our services in New Canaan:

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

Schedule a free estimate to learn more. Connecticut Basement Systems proudly serves New Canaan and areas nearby!

Trusted basement waterproofing company serving New Canaan

A wet basement can affect your home more than you think. If left to worsen, water in the basement can cause structural issues, mold growth, pest problems, and more. That is why Connecticut Basement Systems provides patented basement waterproofing solutions, designed to keep your below-grade space dry and healthy for years to come! So, if you're tired of dealing with basement flooding, high humidity, water in basement, or other waterproofing issues, contact our experts today!

Our basement waterproofing services in New Canaan:

  • Sump pump installation & maintenance
  • Basement drainage systems
  • Basement Dehumidifiers
  • Basement windows
  • Egress windows & window wells
  • And more!

Since 1987, we have provided warrantied basement waterproofing solutions to New Canaan homeowners - this includes sump pumps, basement dehumidifiers, french drains, and more. Schedule a free basement waterproofing estimate to learn more!

Permanent foundation repair solutions in New Canaan

No matter how minor your home's foundation problem seems, it is always better to schedule a foundation inspection and get repairs sooner than later. That is because issues like foundation settlement, leaning chimneys, bowing walls, and more can affect your house's value and curb appeal. Even worse, they can create unsafe living conditions for you and your family.

But there is no reason to worry - Connecticut Basement Systems is backed by Supportworks, a nationally renowned network of expert foundation repair contractors. This partnership also gives us exclusive access to professional training, warrantied solutions, and best practices proven by hundreds of dealers across the globe.

Our foundation repair services in New Canaan:

  • Slab piers
  • Push piers
  • Helical piers
  • Foundation wall repairs
  • Crawl space support jacks
  • Wall anchors
  • Wall reinforcing systems
  • And more!

Schedule a free foundation repair estimate to learn more. We proudly serve New Canaan and areas nearby.

Reliable crawl repair & encapsulation services in New Canaan

A nasty crawl space can cause a lot of issues for the home. If left unrepaired and unsealed, the crawl space can start to rot and grow mold, leading to structural issues, unhealthy indoor air, and discomfort throughout the house. That is why Connecticut Basement Systems provides moisture-proof crawl space encapsulations and durable structural repairs.

When we seal the crawl space using a moisture-proof vapor barrier, add a high-performance crawl space dehumidifier, install crawl space jacks for failing support posts, and provide other crawl space repair solutions, we can create a dry, secure below-grade space for years to come!

Our crawl space encapsulation & repair services in New Canaan:

  • Crawl space vapor barrier
  • Crawl space drainage system
  • Crawl space dehumidifier
  • Crawl space insulation
  • Crawl space support jacks
  • And more!

Schedule a free crawl space repair and encapsulation estimate to learn more. We proudly serve New Canaan and areas nearby.

Transform your home with basement finishing in New Canaan

Want to transform your dreary basement into the space of your dreams? From a lavish apartment to a new play area for the kids, Connecticut Basement Systems can help you with these remodeling projects and more - the only limit is your imagination! Unlike other basement finishing contractors, we actually use remodeling products designed to withstand common environmental conditions in the below-grade space, including moisture and mold. Plus, the basement finishing system is warrantied, has insulating qualities, dampens noise, and is eco-friendly.

Our basement finishing system in New Canaan:

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

Schedule a free basement finishing estimate to learn more. We proudly serve New Canaan and areas nearby.

Quality basement waterproofing, crawl space repairs, & more since 1987

Connecticut Basement Systems is the largest basement waterproofing, foundation repair, crawl space encapsulation, and basement finishing company in New Canaan - and for good reason. We are committed to improving the lives of our employees, customers, and the world through education and development. For over 30 years, we have built a solid reputation backed by honesty and expertise. So you can have absolute confidence in our services!

Contact us to schedule a free estimate today. We proudly serve New Canaan and nearby areas.

Case Studies From New Canaan
This basement in New Canaan had mold and water damage to its walls and floors. The corners of the walls were almost completely black, and you could...
Job Stories From New Canaan, CT
Waterproofing in New Canaan, CT


A homeowner had contacted us regarding a need for waterproofing services in his basement. Without a basement with proper waterproofing, many issues can occur including water damage to the floor and walls, flooding, and the growth of mold. Oftentimes a damp basement causes a musty odor as well as the potential growth of asbestos and other molds which then can become a health issue within one’s own home. Once we heard that assistance was needed, we sent out our expert, Sean Colson, to assess the basement. 


While we have many solutions that are used to completely waterproof basements, one that was crucial in the process of waterproofing the homeowner’s basement was the installation of an UltraSump III. This is a sump pump that was installed to remove water that had accumulated in a sump basin under the homeowner's basement floor and to make sure water levels never got too high so now leaks could occur. Following the sump pump, our crew then implemented a whole new basement flooring. They put down over 1,400 tiles of ThermalDry Floor Matting which created a whole new and improved basement floor. The ThermalDry matts are interlocking waterproof tiles that create a warmer surface while also forming a water barrier above the basement floor. Without this flooring, any water vapors that pass beneath the concrete floor would be absorbed by any carpeting or padding which would cause unwanted odors.


The final step our experts took in fully waterproofing the homeowner’s basement was adding a SaniDry Sedona dehumidifier. By adding this, damp and musty odors will be eliminated by drying and filtering the air. In addition to filtering air, this machine will also filter mold spores, dust mite droppings, dust and other unwanted particles. With automatic drainage and humidity settings, the homeowner will not have to worry about tending to his new humidifier. In addition to waterproofing, the basement was also in need of a repaired crawlspace, which was easily fixed by the addition of drainage matting and wall caps. The matting is put over concrete to allow for proper draining of the crawlspace while wall caps are put over concrete walls to disallow moisture going from the concrete into the crawlspace. With the addition of all these solutions, this homeowner will not have to continue to worry about water issues in his basement or crawlspace.


Wall Crack Repair in New Canaan, CT.

Elizabeth was referred to Connecticut Basement Systems because she had a few cracks in her foundation wall that needed repair. We sent out our specialist who was able to fill three cracks in her basement with our FlexiSpan product and therefore avoid any water intrusion from those cracks.

Work Requests From New Canaan, CT
Project Location: New Canaan, CT
CT basement systems installed and maintains a sump pump system in a portion of our basement. But not everywhere. I'd like an estimate to include the rest / the finished part of the basement. We've had two recent groundwater incidents in the last 30days - in an area where we've not had issues before.
Project Location: New Canaan, CT
Looking to install new basement window have custom window well covers fabricated and installed
Project Location: New Canaan, CT
We have a crawlspace under one room in the house that is both connected to the main basement and vented to the exterior that seems a bit moist (it aLai seems to attract pests) and needs to be sealed to the outside. We also have a bilco door in the basement that leaks into the basement when it rains and are looking for suggestions on how to mitigate these issues effectively.
Project Location: New Canaan, CT
Water leaking into basement from walls
Project Location: New Canaan, CT
Wet area in basement from rain
Project Location: New Canaan, CT
Water In the basement
Project Location: New Canaan, CT
Hello, we have just purchased the condo at 129 Richmond Hill Rd in CT. Here are the inspection results: The crawlspace vent well is shallow and this may lead to water intrusion, as it appears to have in the past. Excavate the well to a depth of 12" below the vent sill, and add 4" of gravel to the base that should be pitched down - away from the house. Plastic covers are not recommended as they tend to conceal insect infestations and/or create a greenhouse effect leading to weed growth and wood rot. Proposed Solution: Recommend further consultation with a basement waterproofing professional to provide a scope and estimate to install a basement waterproofing system to include sub-slab perimeter piping, a submersible pump equipped with a battery backup system and pump or generator, permanent secured discharge line to grade, and full size sump pit with secured sump pit cover to avoid future damages.
Project Location: New Canaan, CT
Moving into new house - want to upgrade sump pump systems, add dehumidifier.
Project Location: New Canaan, CT
Water in basement under floors need estimate
Project Location: New Canaan, CT
Every time it rains we have water seepage into the concrete wall of our garage
Project Location: New Canaan, CT
I would like to request a quote for sump pump installation. Please text or email. Thank you!
Project Location: New Canaan, CT
We have a basement leak issue that needs to be investigated. We need the carpets taken up and need to investigate the remediation. Like to schedule the diagnostic and assessment of the issue.
Project Location: New Canaan, CT
Garage floor cracking near doors
Project Location: New Canaan, CT
Looking to completely finish laundry room and storage room. There are spaces/gaps where pests enter the rooms.
Project Location: New Canaan, CT
We would like to get a quote to finish our basement and make it functional.
Project Location: New Canaan, CT
Our basement flooded last year and we want to waterproof it and refinish it.
Project Location: New Canaan, CT
One wall and a corner of a half basement (a portion is finished) is damp to touch. Outside concrete shows fine cracks. Will be opened from inside. May need crack/seepage repair for the foundation, new insulation and finish
Project Location: New Canaan, CT
Leaking around a pipe when it rains moldy smell
Project Location: New Canaan, CT
Have smell in basement and concerned about mold from water getting in
Project Location: New Canaan, CT
Lower basement floods.