Serving Connecticut, Westchester and Putnam Counties

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A Free Estimate!
Reviews From Colchester
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

Colchester, CT's Respected Crawl Space & Foundation Repair Pros

I just wanted to put in a good word for Eric Ardito, because he really took care of me. He...
Happy Customers Surrounding Colchester, CT
Work Requests

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Colchester, 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 Colchester:

  • 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 Colchester and areas nearby!

Trusted basement waterproofing company serving Colchester

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 Colchester:

  • 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 Colchester 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 Colchester

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 Colchester:

  • 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 Colchester and areas nearby.

Permanent foundation repair solutions in Colchester

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 Colchester:

  • 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 Colchester and areas nearby.

Reliable crawl repair & encapsulation services in Colchester

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 Colchester:

  • 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 Colchester 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 Colchester - 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 Colchester and nearby areas.

Work Requests From Colchester, CT
Project Location: Colchester, CT
Looking for assistance basement crack repair, and foundation waterproofing protection. And looking to finish basement.
Project Location: Colchester, CT
Basement waterproofing
Project Location: Colchester, CT
Leaking stone foundation where it meets the floor.
Project Location: Colchester, CT
Water in the crawl space
Project Location: Colchester, CT
Water coming through entire perimeter of basement between floor and wall
Project Location: Colchester, CT
Water in the basement during abnormal rainfall totals. Permeating walls/ floor
Project Location: Colchester, CT
Looking to have a sump pump system installed in my basement.
Project Location: Colchester, CT
I just need plastic vapor barrier put in a crawlspace
Project Location: Colchester, CT
Unfinished basement space, looking for options and advice
Project Location: Colchester, CT
I'm interested in a quote for finishing our basement. It's a good size space; on our wish list is an office for two, a workout space, guest room (depending on what's allowable code wise), and small half bath. Storage area could remain unfinished. Let me know what the process is!
Project Location: Colchester, CT
Had flood in basement due to a water line broke. Need new walls and partitions.
Project Location: Colchester, CT
Buying a house with water issues in basement
Project Location: Colchester, CT
We are the new owners at 144 Thornridge and are looking to make our basement a usable, unfinished space. We are not aware of any serious water issues, although the previous owners did not control humidity. We recently had mold remediation, a dehumidifier installed, and floors epoxied. Our next step is figuring out the best way to handle the concrete walls and having a plan for any future water intake.
Project Location: Colchester, CT
I would like to get an assessment on remodeling my basement.
Project Location: Colchester, CT
We would like a quote on finishing our basement.
Project Location: Colchester, CT
The floor in the bathroom is bowed upward in the center (floor over the utility room in the basement). The defect has been there probably since it was built but seems worse now? There's also a hairline vertical crack in the front foundation and a hairline drywall crack along the hall ceiling all along the same line. Maybe poor construction and settling issues? The house was built in 1986.
Project Location: Colchester, CT
We bought a house and cloase on 1/27. Before we move in we would like a quote to finish the basement.
Project Location: Colchester, CT
We are looking to have a quote on foundation crack repairs, a sump pump installation, & a foundation inspection since we've been hearing & seeing more & more nail pops in the walls lately. Thank you.
Project Location: Colchester, CT
Water is coming into finished basement through cracks in foundation near bulkhead. I've sealed as much as I can but it still comes in during heavy rains.
Project Location: Colchester, CT
Need a quote to dry out basement