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 North Stonington
Waterproofing Installation in North Stonington, CT

Waterproofing Installation in North Stonington, CT

Before After
Waterproofing Installation in North Stonington, CT Waterproofing Installation in North Stonington, CT

This family in North Stonington, CT was tired of having a dirty basement that often leaked and flooded with water. They wanted a space that was comfortable and inviting, so they gave us at Connecituct Basement Systems a call, and we were happy to come out!

Taz Petersen, our System Design Specialist, quickly came up with a solution that would best suit this family's basement. Kryz Wilk and his team came out, and got ready to take on the task at hand. They first installed WaterGuard around the perimeter of the basement, which paired wonderfully with our SuperSump. These two products work together to create a first class drainage system for any basements. We also encapsulated the entire space with our bright and durable Cleanspace Wall System. This not only makes your space look brighter and cleaner, it also works to keep vapor and moisture out of the basement! 

This family felt much better about using their basement for all of their storage needs! Give us a call TODAY for your no cost estimate!

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

North Stonington, CT's Devoted Crawl Space & Foundation Contractors

The job performance was outstanding......
Happy Customers Surrounding North Stonington, CT
Work Requests

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Reviews From North Stonington
Testimonials From North Stonington
The job was done very expertly and quickly.
Testimonial by Allan A. from North Stonington, CT

North Stonington, 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 North Stonington:

  • 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 North Stonington and areas nearby!

Trusted basement waterproofing company serving North Stonington

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 North Stonington:

  • 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 North Stonington 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 North Stonington

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 North Stonington:

  • 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 North Stonington and areas nearby.

Reliable crawl repair & encapsulation services in North Stonington

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 North Stonington:

  • 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 North Stonington and areas nearby.

Transform your home with basement finishing in North Stonington

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 North Stonington:

  • 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 North Stonington 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 North Stonington - 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 North Stonington and nearby areas.

Work Requests From North Stonington, CT
Project Location: North Stonington, CT
I have a 300 year old field stone basement that is part concrete floor and part crawl space. The foundation leaks in heavy rain and floods the floor. I need to dry up the basement as I am allergic to mold. I have 2 dehumidifiers that need to be connected to a catch basin with sump pump, and I need the crawl space dried up and perhaps insulated.
Project Location: North Stonington, CT
I would like to redirect discharge pipes to backyard and replace sump pumps. I have the perimeter system already in place. But The company I used to install the perimeter drainage system is not responsive anymore to my needs. Thank you
Project Location: North Stonington, CT
I am currently under contract with a home that has bad piers under the crawl space of the addition of the home. The cmu block on the outside has some missing mortar and gaps. One you can see and it looks like there is no concrete in the block or rebar.
Project Location: North Stonington, CT
Hi, I have a perimeter drain system with triple sump pumps from another company. I would like to redirect the discharge to go to my back yard instead of the front yard which is where it goes now. I was wondering if it's something you could do. The other company is not getting back to me and hasn't for awhile now.
Project Location: North Stonington, CT
Untreated crawl spac
Project Location: North Stonington, CT
Have been experiencing water in basement since last winter. Just finished cleaning out basement so am ready to proceed with assessment and estimate . When water is in basement I am unable to totally remove with wet vac as it is continuously seeping in.
Project Location: North Stonington, CT
Foundation wall vertical crack . water leaking in. Possible second location as well.
Project Location: North Stonington, CT
I have a garage that has a very high humidity reading at all times. I would like to discuss options as well as some other thoughts/concerns with the rest of my basement. I am hoping to have someone (with heavy experience (please don't send me someone new ;-) ) to discuss a number of things.
Project Location: North Stonington, CT
We would like a quote on finishing half of the basement to add more living space, and possibly adding a full bath as well.
Project Location: North Stonington, CT
My husband and I are interested in a free estimate for finishing our basement. It is roughly 2000 square feet. At your convenience would you please contact me to discuss this further and to find out what you/I need for a free estimate. Thank you. Laura
Project Location: North Stonington, CT
Foundation crack that extends from corner of basement window to base of wall. Leaks rainwater into basement if not channeled away from the house Residential home Standard basement wall height Poured concrete foundation 1980 construction Exterior wall not exposed
Project Location: North Stonington, CT
Interested in basement finishing
Project Location: North Stonington, CT
Looking for ideas to finish our basement.