Serving Connecticut, Westchester and Putnam Counties

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A Free Estimate!
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 East Haddam
New Sump Pump in East Haddam, Ct home.

New Sump Pump in East Haddam, Ct home.

Before After
New Sump Pump in East Haddam, Ct home. New Sump Pump in East Haddam, Ct home.

Here we installed Waterguard TrenchDrain and a SuperSump pump to remove water and prevent any further flooding.

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

East Haddam, CT's Respected Crawl Space & Foundation Repair Pros

Jorge Rodriguez came to perform annual maintenance on my system, found that I needed a new sump pump, installed it,...
Happy Customers Surrounding East Haddam, CT
Work Requests

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Reviews From East Haddam
Testimonials From East Haddam
Dear Mr. Janesky, I am taking this opportunity to write and let you know you have an outstanding employee and...
Testimonial by Susan C. from East Haddam, CT

East Haddam, 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 East Haddam:

  • 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 East Haddam and areas nearby!

Trusted basement waterproofing company serving East Haddam

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 East Haddam:

  • 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 East Haddam 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 East Haddam

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 East Haddam:

  • 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 East Haddam and areas nearby.

Permanent foundation repair solutions in East Haddam

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 East Haddam:

  • 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 East Haddam and areas nearby.

Reliable crawl repair & encapsulation services in East Haddam

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 East Haddam:

  • 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 East Haddam 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 East Haddam - 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 East Haddam and nearby areas.

Job Stories From East Haddam, CT
Waterproofing Transformation in East Haddam, CT

This East Haddam family was having problem with water pooling from the walls onto their floor, and their old sump pump wasn't pumping the way it should have been. They gave us a call at Connecticut Basement Systems, and we were happy to come, and get the job done! 

The first thing we did was install a Waterguard perimeter drainage system to prevent any further flooding. Faster, easier and less expensive to install than exterior drainage systems, this system is installed inside the home! We connected the WaterGuard to our TripleSafe Sump Pump, a system that incorporates three pumps to handle power outages and high-volume pumping in extreme conditions. It also has an airtight lid, allowing no dirt, dust, or pests to get in. This family no longer has to worry about their basement flooding, and we were happy to help! 

Give us a call TODAY for your free estimate!

Work Requests From East Haddam, CT
Project Location: East Haddam, CT
Stop water from coming in basement
Project Location: East Haddam, CT
I need to upgrade a sump pump. There is an issue that has to be remedied; There are holes in the cement wall that encloses the sump pump. Debris comes through the holes in the cement wall enclosure and caused a pump to fail.
Project Location: East Haddam, CT
Basement refinishing Waterproofing and sump done previously
Project Location: East Haddam, CT
Fieldstone basement. Light seepage after latest rain. Just curious about general costs.
Project Location: East Haddam, CT
I have a seasonal cottage that I would like to encapsulate. It is part dirt floor and part concrete. Looking for options for making it a better environment but still useable for storage. It varies in levels from being able to stand to hands and knees height.
Project Location: East Haddam, CT
Water in basement
Project Location: East Haddam, CT
Water seeping thru crack in basement floor (living space). Having Sump pump issues too. Frozen lines. Pump not keeping up with water.
Project Location: East Haddam, CT
When it Rains the basement gets water and we are trying to waterproof the basement and hopefully finish it afterward.
Project Location: East Haddam, CT
Need th lift slab in pool deck
Project Location: East Haddam, CT
Would like to get an estimate Water in the basement.
Project Location: East Haddam, CT
Water coming in through basement hatch... I think. May be coming up through floor? Looking to finish basement and want to make sure it is waterproof first.