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 Oakville
Waterguard & Sump Pump in Oakville, CT!

Waterguard & Sump Pump in Oakville, CT!

Before After
Waterguard & Sump Pump in Oakville, CT! Waterguard & Sump Pump in Oakville, CT!

Here we have a leaky basement in serious need of a basement liner as well as a sump pump to ensure water is a thing in the past!

Basement waterproofing before finishing in Oakville.

Basement waterproofing before finishing in Oakville.

Before After
Basement waterproofing before finishing in Oakville. Basement waterproofing before finishing in Oakville.

Here we have a wet leaky, unfinished basement! To prevent structural damage, we installed our super sump pump before starting our total basement finishing process!

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

Certified Basement & Foundation Crack Repair Pros in Oakville, CT

The people are wonderful, they go out of their way to make you comfortable, they don't pressure you. There's nothing...
Happy Customers Surrounding Oakville, CT
Work Requests

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Reviews From Oakville
Testimonials From Oakville
Ron was a one of a kind serviceman. He was friendly and professional. The job was well done and the results...
Testimonial by Marie J. from Oakville, CT

Oakville, 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 Oakville:

  • 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 Oakville and areas nearby!

Trusted basement waterproofing company serving Oakville

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 Oakville:

  • 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 Oakville 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 Oakville

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 Oakville:

  • 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 Oakville and areas nearby.

Permanent foundation repair solutions in Oakville

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 Oakville:

  • 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 Oakville and areas nearby.

Reliable crawl repair & encapsulation services in Oakville

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 Oakville:

  • 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 Oakville 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 Oakville - 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 Oakville and nearby areas.

Work Requests From Oakville, CT
Project Location: Oakville, CT
Leak in basement floor
Project Location: Oakville, CT
I have a stone basement that is starting to cause puddles on my basement floor
Project Location: Oakville, CT
I have a 1950 stone foundation home that leaks water in my basement when it rains. I had a curtain drain put in outside and waterproofing on the wall but the water is still coming in (worse than before). Need to have a sump pump put in with gutters that will channel the water towards the sump pump.
Project Location: Oakville, CT
Estimate to finish basement
Project Location: Oakville, CT
Getting water in a finished basement. Wasn't an issue for 15 years, now had it 2 times in the past year. Looking for sump pump/water proofing and possible exterior drainage improvements
Project Location: Oakville, CT
We are having water coming through wall and floor
Project Location: Oakville, CT
Looking to put a room in basement
Project Location: Oakville, CT
I have a crumbling foundation wall
Project Location: Oakville, CT
Cracked footing/repair of garage.
Project Location: Oakville, CT
Crack in foundation sealed 16 years ago now leaks episodically (once in past year) as well as new cracks in floor needing sealing.
Project Location: Oakville, CT
Finishing approx 30x18 basement
Project Location: Oakville, CT
Price, quality, reliability
Project Location: Oakville, CT
Water comes into basement some 3 areas during heavy rain or melting snow
Project Location: Oakville, CT
Crawl space insulation
Project Location: Oakville, CT
Small patio outside garage door in basement has dry well but has been flooding and filling with water
Project Location: Oakville, CT
Concreate around the Pool is sinking.
Project Location: Oakville, CT
Basement floor is 4 inches lower in one corner
Project Location: Oakville, CT
Minor moisture damage in the basement. Basement unfinished and made of stone. Inspection report provides greater details. Request estimate to repair.
Project Location: Oakville, CT
Damp basement, possible mold probelm
Project Location: Oakville, CT
I have a small crawl space (16' x 12') that needs a vapor barrier put in. When I bought the house about a year ago, radon tested at 4.1, so I'm hoping that sealing this area will decrease that. Do you also do radon testing and/or remediation? I didn't see it on the website. I prefer contact via email. Thanks.