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
ThermalDry® Elite Plank Flooring
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Basement Egress Windows


Before and After Pictures from Seymour
Basement Renovation in Seymour, CT

Basement Renovation in Seymour, CT

Before After
Basement Renovation in Seymour, CT Basement Renovation in Seymour, CT

Walkout Basement Remodel. Before we finished this basement, it was a cold space that was not being used to its full potential. With our wide range of basement finishing products, we transformed the space, taking full advantage of the light coming in through windows and doors. We chose two solutions perfect for the basement environment: our EverLast wall panels, which are waterproof and tougher than drywall, and MillCreek flooring, which will not bend or buckle when wet. The owners of this home are delighted with their warm, dry, comfortable living space in their basement!

Basement Waterproofing in Seymour, CT

Basement Waterproofing in Seymour, CT

Before After
Basement Waterproofing in Seymour, CT Basement Waterproofing in Seymour, CT

The homeowners in this Seymour home had a continuing water issue in their basement. The homeowners contacted the experts at Connecticut Basement Systems to fix it. We installed our BrightWall  which is a 100% waterproof rigid plastic paneling for unfinished basement walls. It's durable, washable, and will not support the growth of mold or rot. We also installed our WaterGuard Fren Drain System which is our patented drain system that is designed to never clog. The drain system is put in in the ground but above the foundation footing and then cemented to be covered up. 


The homeowners no longer have to worry about anymore water damaging their home. 


Ceiling Tiles in Seymour, CT

Ceiling Tiles in Seymour, CT

Before After
Ceiling Tiles in Seymour, CT Ceiling Tiles in Seymour, CT

Before, this Seymour, CT basement had an exposed ceiling that created an area for mold to grow, which was unattractive and unhealthy. Luckily, the experts at Connecticut Basement Systems were able to provide a solution when transforming this basement to beautiful! 

Now, the basement has our patented ceiling tiles. This product is superior to others because it is mold resistant, which is guaranteed by a 30 year warranty. In addition, the ceiling tile gives the basement an elegant and complete look while serving a practical purpose; giving you access to plumbing and wiring at any time in the future. The homeowner was delighted with the appearance and practicality of the ceiling tile!  

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

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

Mike was excellent! He answered all of our questions and was extremely helpful....
Happy Customers Surrounding Seymour, CT
Work Requests

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Reviews From Seymour
Testimonials From Seymour
In a year we had a ton of rain and we haven't had any water in our garage. It is a real big relief that we...
Testimonial by DJ M. from Seymour, CT
So happy with the service I received from your company!
Testimonial by Sherry G. from Seymour, CT
Thanks for getting in touch.
Testimonial by Thomas M. from Seymour, CT

Seymour, 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 Seymour:

  • 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 Seymour and areas nearby!

Trusted basement waterproofing company serving Seymour

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 Seymour:

  • 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 Seymour 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 Seymour

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 Seymour:

  • 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 Seymour and areas nearby.

Reliable crawl repair & encapsulation services in Seymour

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 Seymour:

  • 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 Seymour and areas nearby.

Transform your home with basement finishing in Seymour

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 Seymour:

  • 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 Seymour 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 Seymour - 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 Seymour and nearby areas.

Case Studies From Seymour
This Seymour, CT basement had a constant water problem every time it rained. This made the entire environment dreary and uninviting. The homeowner...
Press Releases From Seymour
I am Larry Janesky, founder and owner of Connecticut Basement Systems, the "All Things Basementy" company in Seymour CT.  Many people are confused about what happened to a company that sounds like us, but isn't, and this letter will hopefully clear things up.... [Read more]
Connecticut Basement Systems recruited Contractor Nation to assist with a Back to School Drive that ...
Connecticut Basement Systems recruited Contractor Nation to assist with a Back to School Drive that collected donations for the middle schoolers... [Read more]
Contractor Nation, voted a Top Workplace in CT for five straight years, is forging connections and putting the candidate first at its upcoming recruiting and networking event on December 11. This event will be held in conjunction with Contractor Nation's subsidiary brands, Larry Janesky's Connecticut Basement Systems, The Junkluggers, and Brown Roofing.... [Read more]
Job Stories From Seymour, CT
WaterGuard System, TripleSafe and EverLast Windows in Seymour, CT

This Seymour home had an insufficient basement that became frequently wet and had a lot of unwanted air flow that made the area uncomfortable. The homeowner wanted to utilize her basement to the fullest potential and decided to schedule an appointment with the experts at Connecticut Basement Systems.

On the day of the appointment, Sales Representative Steve Macnicz arrived at the home to inspect the basement. Upon inspection, he knew that the wet basement would benefit from a  WaterGuard System that would collect the water seepage internally. The water that is collected would be channeled to the TripleSafe sump pump where it will be exited through a discharge line away from the home. In order to properly insulate the basement, new windows and rim joist insulation was recommended to prevent unwanted air flow. CleanSpace could be installed on the walls to direct wall seepage to the WaterGuard system. The homeowner and Steve went over each product and their benefits in great detail. The homeowner decided that this would be the best solution for her basement. 

On the day of production, Foreman Krzys Wilk and his team installed the WaterGuard system, TripleSafe, CleanSpace , EverLast windows and rim joist insulation professionally and efficiently. To install the WaterGuard System, the perimeter of the basement floors were excavated in order to place the system. Once the system was installed, it was back filled with gravel and then sealed with cement. The system is connected to the TripleSafe sump pump. The CleanSpace was installed on the walls. 2 basement windows were installed to prevent air leakage and also to make the area brighter and more efficient. The rim joists of the basement were insulated to also prevent air leakage. Once all of these products were installed, they created a dry and enjoyable basement which the homeowner could enjoy and utilize fully! 

FlexiSpan in Seymour, CT

These homeowners had just purchased their home and as soon as the moved in, they realized that their garage was wet after a rain storm. They soon noticed that the garage had a crack in its wall that caused a lot of water to seep through, actually flooding the basement. Frustrated, especially after just purchasing the home, they knew just who to call to help with their wet area.  

They contacted Connecticut Basement Systems to schedule a free, no obligation estimate. On the day of the appointment, Glen Kerpchar arrived at the home to inspect the situation. After seeing the crack, he highly recommended the product FlexiSpan. This product will seal the entire length of the crack, doubling as a waterproof method. Then a channel is attached to the sealant, channeling any moisture away from the basement. This is exactly what the homeowners wanted and decided to move forward with the project.

On the day of production, Justin Vizard arrived at the home to apply the FlexiSpan. He installed this product professionally and efficiently. Once the entire project was completed, the homeowners were instantly relieved that they will now have a dry basement moving forward. 

The homeowners have not had any water issues in their garage ever since and are so happy that Connecticut Basement Systems were able to help. 

Fixed Sunken Walkway

Miguel's front walkway was lifting and settling, creating an uneven surface that was dangerous for people to walk on. He immediately reached out to Connecticut Basement Systems. They offered Miguel a permanent solution to his sinking concrete slab problems, known as PolyLEVEL.

Miguel agreed to have his walkway lifted and leveled out with this efficient new method of concrete repair. PolyLEVEL is a two-part injection foam that is pumped beneath a concrete slab to fill the void between the soil and slab. This process firmly stabilizes the concrete and returns it back to its original condition.

Fixed Sunken Walkway  - Photo 1Fixed Sunken Walkway  - Photo 2Fixed Sunken Walkway  - Photo 3Fixed Sunken Walkway  - Photo 4
Work Requests From Seymour, CT
Project Location: Seymour, CT
Water coming through foundation. Drainage problems around basement entrance.
Project Location: Seymour, CT
Flooding in basement. heavy long rains will cause water to seep in from the floor and enter into the basement from specific locations that are also in line with some of our gutter exits.
Project Location: Seymour, CT
Flooding occurring in the basement, probably through cracks in the foundation. Need to redirect water either from the gutters, garage, or a sump pump. Looking for a cost efficient solution.
Project Location: Seymour, CT
I want a backup to my sump pump in case the power goes out.
Project Location: Seymour, CT
Water leak in wall from rain
Project Location: Seymour, CT
This person has filled out the Star Power Pro survey on that you sent them and is interested in another service you provide: Dehumidification. Please contact them to schedule a new appointment for this service. This is a no-charge lead.
Project Location: Seymour, CT
I have a recurring leak in the basement with heavy rains. The walls are sealed so a crack is not visible, but I believe it is coming from the floor.
Project Location: Seymour, CT
Basement has severe water damage.
Project Location: Seymour, CT
Water coming in my basement looks like mud?
Project Location: Seymour, CT
I'm looking to finish our basement and would like an estimate.
Project Location: Seymour, CT
Water has started coming into basement from crack in foundation; pictures are available if interested We would like an assessment of the situation asap and if at all possible by this Friday 8/26/22.
Project Location: Seymour, CT
Water comping through foundation. Between walls and floor. In the seams. Started Thursday night and now is getting a bit worse. About an inch of water
Project Location: Seymour, CT
I would love my basement finished with flooring, walls, ceiling/ ceiling lights, insulation, and half bathroom, heating/cooling unit.
Project Location: Seymour, CT
Looking for estimates to install an egress in my basement.
Project Location: Seymour, CT
- Finish Basement - Reseal a crack in Foundation
Project Location: Seymour, CT
Waterproofing basement
Project Location: Seymour, CT
Basement remodel. 1000 sq ft. 3 piece bathroom. Utility room. Office for 2.
Project Location: Seymour, CT
Hi, My name is Rob Sinclair, and I'm planning to do some basement remodeling. I was hoping to discuss your services. Our home location is in Seymour, CT, so I first wanted to make sure you service this area of the state. Thank you. I look forward to your call. -Rob
Project Location: Seymour, CT
Looking to finish basement into kids play/living room and home gym with storage near mechanicals.
Project Location: Seymour, CT
Basement is humid and easily develops cobwebs. There is a back room that in the summer has a horrible smell reminiscent of dog urine. I want to be able to turn this into work/living space, but I want to keep the basementy feel (exposed stone walls, concrete floor, etc).