Serving Connecticut, Westchester and Putnam Counties

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A Free Estimate!
Reviews From Katonah
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


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

Katonah, NY's Respected Crawl Space & Foundation Repair Pros

Happy Customers Surrounding Katonah, NY
Work Requests

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Katonah, NY'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 New York 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 Katonah:

  • 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 Katonah and areas nearby!

Trusted basement waterproofing company serving Katonah

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 Katonah:

  • 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 Katonah homeowners - this includes sump pumps, basement dehumidifiers, french drains, and more. Schedule a free basement waterproofing estimate to learn more!

Transform your home with basement finishing in Katonah

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 Katonah:

  • 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 Katonah and areas nearby.

Permanent foundation repair solutions in Katonah

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 Katonah:

  • 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 Katonah and areas nearby.

Reliable crawl repair & encapsulation services in Katonah

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 Katonah:

  • 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 Katonah 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 Katonah - 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 Katonah and nearby areas.

Work Requests From Katonah, NY
Project Location: Katonah, NY
Basement flooding
Project Location: Katonah, NY
Hi! Our basement flooding following heavy rains. Has not ceased being wet since last week's storm. Seems to be coming in from the foundation. Help! Thanks!
Project Location: Katonah, NY
I'm reaching out having just moved to Katonah, our home recently had some minor flooding where the floor meets the wall with the heavy rains. We'd love for you to inspect the issue and help assess solutions. It's our understanding the previous owners put in substantial French drains throughout the backyard yet the basement wall facing that yard had some flooding at the foot still. We live on a hillside and think we'll need more solutions in place given the trend of rain.
Project Location: Katonah, NY
Water entering the basement during major storms. Basement floor was re-finished recently, and was dug out deeper than it had been.
Project Location: Katonah, NY
I have a crack in my foundation and as a result water has seeped in and rotted some of the wood beams in my crawl space.
Project Location: Katonah, NY
My basement is flooding from the storms and I need someone to tell me what is going on and how to fix it
Project Location: Katonah, NY
Crawl space in need of being sealed and tapped - dehumidifier needs cleaning and potentially replacement.
Project Location: Katonah, NY
After heavy rain, basement floods (big puddles in certain areas). We have a sump pump installed, but it looks like it does not fix the situation.
Project Location: Katonah, NY
Interested in a basement remodel as well as a waterproofing solution. Have already met with Chuck Stofko.
Project Location: Katonah, NY
Damp basement
Project Location: Katonah, NY
The basement previously re-finished needs a complete overhaul.
Project Location: Katonah, NY
Drainage outside causing wet and dirt to appear on the inside . We just purchased the house and inherited the problems . Floors are already ripped up so we can see the moisture . Concerned about mold behind the sheet rock as we see not sure how long it has been happening
Project Location: Katonah, NY
I'm interested in a free quote for finishing my basement. This would not be considered livable space due to the low ceiling height, though I'd like it to be a more comfortable, cleaner space .
Project Location: Katonah, NY
Wet basement\
Project Location: Katonah, NY
Water is seeping into unfinished basement room (rest of basement is finished). We just bought the house, but the water had appeared after each rain.
Project Location: Katonah, NY
I need two pumps in my basement replaced, potentially with new pits installed. I have a finished basement that retains a lot of moisture. Thank you!
Project Location: Katonah, NY
Basement is from the mid 1800's. I'm concerned about water, air quality etc.
Project Location: Katonah, NY
Crawl space insulation
Project Location: Katonah, NY
Going away July 18 and would like to install battery backup to basement sump pump
Project Location: Katonah, NY
Our house is built into bedrock on a hill, so we have a utility room which is basically a crawl space. The insulation is falling apart and there is no ventilation.