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 Old Saybrook
ThermalDry Flooring and EverLast Wall Restoration in Old Saybrook, CT

ThermalDry Flooring and EverLast Wall Restoration in Old Saybrook, CT

Before After
ThermalDry Flooring and EverLast Wall Restoration in Old Saybrook, CT ThermalDry Flooring and EverLast Wall Restoration in Old Saybrook, CT

Before, this Old Saybrook basement was filled with moisture that was affecting the walls and floors of the area. The bottom of the walls had to be removed as it was too damaged by the moisture and they did not want to risk a problem of mold. The floors were too unpleasant and uncomfortable for anyone to enjoy. The homeowners decided that an upgrade was needed and trusted the experts at Connecticut Basement Systems. 

The solution for this basement was to install EverLast wall restoration and ThermalDry flooring. The wall restoration is designed to prevent any damage caused by moisture including the growth of mold. They are also strong and durable while looking great as an accent to any basement. Light Pecan ThermalDry flooring was installed with benefits including a thermal break from the cold slab allowing the surface to be up to 10 degrees warmer than the concrete foundation and a grid design to stop water vapor preventing mold and odor. The transformation was incredible and the homeowners were happy with the results.  

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

Dedicated Access Well Installation & Foundation Repair Company in Old Saybrook, CT

Your installation crew was great and i am very satisfied with the work done and your product....
Happy Customers Surrounding Old Saybrook, CT
Work Requests

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Reviews From Old Saybrook
Testimonials From Old Saybrook
I could not have been more satisfied with the job that was done for me. Everyone involved were very polite...
Testimonial by Sydney A. from Old Saybrook, CT
The Sedona dehumidifier is fantastic! Salesman Micah Smith came to the house, did a thorough evaluation of...
Testimonial by Nancy B. from Old Saybrook, CT
Kyle is a very competent and polite young man!
Testimonial by Robert P. from Old Saybrook, CT

Old Saybrook, 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 Old Saybrook:

  • 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 Old Saybrook and areas nearby!

Trusted basement waterproofing company serving Old Saybrook

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 Old Saybrook:

  • 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 Old Saybrook 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 Old Saybrook

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 Old Saybrook:

  • 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 Old Saybrook and areas nearby.

Reliable crawl repair & encapsulation services in Old Saybrook

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 Old Saybrook:

  • 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 Old Saybrook and areas nearby.

Transform your home with basement finishing in Old Saybrook

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 Old Saybrook:

  • 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 Old Saybrook 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 Old Saybrook - 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 Old Saybrook and nearby areas.

Job Stories From Old Saybrook, CT
PolyLevel Injection in Old Saybrook, CT

These Old Saybrook homeowners were extremely concerned with the uneven cement and cracks that were developing along their pool. They did not want these tripping hazard to ruin their summer fun, so they decided to give Connecticut Basement Systems a call to find a permanent solution. 

Shortly after giving us a call, an appointment was set for our System Design Specialist, Matt Kraus, to evaluate the situation. He concluded that a PolyLevel injection to the problem areas would be the best option to level the sinking cement. PolyLevel is affordable, waterproof, and quickly curing, which makes it the perfect solution for this Old Saybrook poolside. Within hours after the injection, the poolside cement was leveled and ready for a fun, safe summer.

Now these homeowners are worry-free about their sinking cement and can be reassured that their poolside will be safe for all to enjoy.  

Work Requests From Old Saybrook, CT
Project Location: Old Saybrook, CT
Just purchased a home in May that had (what we thought) was minor leaking in the back basement wall due to lack of gutters. After living here for a month or so, we realized that any moderate to heavy rain is causing lots of water to come through cracks in the rear basement wall.
Project Location: Old Saybrook, CT
Water and septic damage
Project Location: Old Saybrook, CT
Failed cement wall in shed. The wall has been pushed in by adjacent hillside. If shed is taken down it can't be replaced due to zoning regulations. Investigating ways to repair or support wall from further collapse.
Project Location: Old Saybrook, CT
We have a wet basement, in a flood zone...HELP!, LOL
Project Location: Old Saybrook, CT
Need to seal crawlspace and put French drain or sump pump as flooding fills the crawlspace
Project Location: Old Saybrook, CT
Basement finishing
Project Location: Old Saybrook, CT
I own a home built in 1860. The basement at one point served as a movie theater in the 1950's. It needs to be gutted and waterproofed. Interested in a quote for this service. Thank you.
Project Location: Old Saybrook, CT
Our water pipes are in the crawl space which is not insulated .
Project Location: Old Saybrook, CT
Would like complete basement waterproofing estimate
Project Location: Old Saybrook, CT
We have finished basement but the concrete floor has some cracks. We do not have any water issues and looking to have floor cleaned, stained and sealed
Project Location: Old Saybrook, CT
I am looking for an estimate to finish half of our basement. I am looking to have 2 offices with a kitchenette and half bath between the 2 offices.
Project Location: Old Saybrook, CT
Need basement waterproofing and changing of material in attic. Maybe cleaning or replacement of ducts.
Project Location: Old Saybrook, CT
Need sealing . Got water in the basement. Could no tell where is came fromHappenex white that horrible rainstorm last week.
Project Location: Old Saybrook, CT
Sump pump appears to be at least 12 years old
Project Location: Old Saybrook, CT
Want to finish my basement to use as living space
Project Location: Old Saybrook, CT
Inspection and installation of vapor barrier under summer cottage
Project Location: Old Saybrook, CT
We have a crawl space which we believe is where the strong odor is coming from into our kitchen, bathroom and living area. It has been present for the last few years but typically goes away in the summer. It is now year round. From our research as we are no experts, we are guessing that the dirt which as come into the crawl space and is now in two corners of the concrete floor is emitting the order. We are thinking if we could get the crawl space and house tested (VOC test?) and potentially remove the dirt, figure out a ventilation strategy and potentially figure out how to insulate and/or create a barrier between the crawl space and house. If you are working during this pandemic, we need help ASAP as we are now living here full time.
Project Location: Old Saybrook, CT
Repair of crack in foundation
Project Location: Old Saybrook, CT
Dirt crawl space. Want to encapsulate if possible. Want new insulation under floor. Water heater is the only appliance in the space. Would like to make an appt. and get a solution and a quote.
Project Location: Old Saybrook, CT
Water in basement due to heavy rain.