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
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Basement Egress Windows


Before and After Pictures from Old Lyme
Beautiful Crawl Space Transformation in Old Lyme, CT

Beautiful Crawl Space Transformation in Old Lyme, CT

Before After
Beautiful Crawl Space Transformation in Old Lyme, CT Beautiful Crawl Space Transformation in Old Lyme, CT

Mark K. was complaining about a damp smell in the basement and coming from the crawl space and they were also concerned with cold floors above the crawl space. He wanted a solution, and he wanted one fast, so he gave us a call at Connecticut Basement Systems, and we were happy to come and see how we could solve his problem!

Our System Design Specialist, Ferdinand Gojani, came out to survey the space, and assess what needed to be done. The first thing he suggested was a CleanSpace Radiant Vapor Barrier. This bright, white vapor barrier completely transforms a crawl space, while also working to reduce moisture and humidity within the crawl space. It also helps seal out cold drafts in the winter, and is suitable over walls and floors. We also installed a SaniDry dehumidifier, which is designed to provide many years of energy-efficient, trouble-free performance, even in tough crawl space conditions. SilverGlo rigid foam insulation was also installed. This rigid foam insulation shed water instead of soaking it up like cellulose and fiberglass insulation. The best part? It doesn't support mold EVER. 

This crawl space was transformed from dark to dazzling, and this family can now use the space for storage! Call us TODAY for your free, crawl space estimate!

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

The Best Foundation Repair Contractor in Old Lyme, CT

Ailton is knowledgable, articulate, and accurate. ...
Happy Customers Surrounding Old Lyme, CT
Work Requests

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Reviews From Old Lyme
Testimonials From Old Lyme
Dan was very thoughtful, efficient, and honest.
Testimonial by Mary W. from Old Lyme, CT
We had the pleasure of having Allan Guglielmoni and crew worked on our basement yesterday. They did Great job and completed it in one day. The basement looks...
Testimonial by Joe F. from Groton, CT
Al and his crew did a phenomenal job! They were clean and efficient, and they do high quality work. I can't speak highly enough of them.
Testimonial by Mark B. from Old Lyme, CT

Responsible basement waterproofing, foundation repair, basement finishing, crawl space repair company serving Old Lyme, CT

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems dealer in Old Lyme, CT.

Services we offer in Old Lyme:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Foundation and structural repair solutions.
  • 25-year warranty against manufacturing defects on foundation products.
  • Basement finishing and remodeling services.
  • Crawl space sealing with CleanSpace vapor barrier.
  • 25-year warranty on crawl space encapsulation systems.
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Job Stories From Old Lyme, CT
TrenchDrain installation in Old Lyme, CT

The basement of this Old Lyme, CT home had a hatchway, with stairs leading into the basement from the outside. Water was able to enter the basement through the crack under the door. They needed this to stop, so they gave us at Connecticut Basement Systems a call, and we were happy to come out and help!

To prevent this, our team installed a trench drain at the end of the stairs. This open grated drain collects water into the perimeter drainage system, preventing it from entering the basement. Both parts are made from heavy-duty reinforced plastic, so you’ll never need to worry about breakage, moisture damage, corrosion, or maintenance.  The homeowners now have a dry basement to enjoy, and we were happy that we could offer a solution to their problem.

Give us a call TODAY for your FREE estimate!

Work Requests From Old Lyme, CT
Project Location: Old Lyme, CT
Crawl space insulation
Project Location: Old Lyme, CT
We just had flooding during Ida and want to see what it will take to waterproof. We were planning to finish part of the basement, so this is key to being able to go forward with that Plan
Project Location: Old Lyme, CT
We have a crawl space that needs waterproofing
Project Location: Old Lyme, CT
Interested in exploring dehumidification solutions for our finished basement. Our store-bought dehumidifiers are not doing the job.
Project Location: Old Lyme, CT
I would like someone to inspect my crawl space for problems
Project Location: Old Lyme, CT
Foam spray basement
Project Location: Old Lyme, CT
We are looking to finish the basement. The area is roughly about 600 sq ft. We are still undecided on adding a half bathroom.
Project Location: Old Lyme, CT
Looking for a quote for crawl space encapsulation with a dehumidifier
Project Location: Old Lyme, CT
It's a 1920's home. Old basement. Just pulled up the floors and there is a lot of moisture
Project Location: Old Lyme, CT
Annual maintenance appointment
Project Location: Old Lyme, CT
First floor seems to have shifted
Project Location: Old Lyme, CT
Buying a house and need a free inspection to remediate dirt crawl space
Project Location: Old Lyme, CT
Excess moisture in crawl space causing mold issues inside home
Project Location: Old Lyme, CT
Need a vapor barrier
Project Location: Old Lyme, CT
Crawl space settling is leading to uneven floors and cracked Sheetrock around some windows and door frames.
Project Location: Old Lyme, CT
The sanidry dehumidifier you (?) installed about 5 years ago is no longer working. probably needs a new pump.
Project Location: Old Lyme, CT
Old house on old foundation with tiny crawl space. Smells like mold in summer and lets in cold air in winter.
Project Location: Old Lyme, CT
I would like a quote to remedy wet crawl space ,to include, drainage sump, pump ,rat slab and removal and repair of damaged structural components from moisture. Text first please.
Project Location: Old Lyme, CT
Crawl space area is very damp and I would like to have it encapsulated and dried out . Concerned about water pipes in that area freezing as well. Crawl space is approx 24 x 30
Project Location: Old Lyme, CT
Would like an assessment and recommendation for my basement moisture issues.