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 Larchmont
Crawlspace Encapsulation in Larchmont, NY

Crawlspace Encapsulation in Larchmont, NY

Before After
Crawlspace Encapsulation in Larchmont, NY Crawlspace Encapsulation in Larchmont, NY

This old crawlspace was letting water into this Larchmont, NY home. Using our CleanSpace liner, which acts as a vapor barrier, we were able to waterproof this home. 

Crawlspace Encapsulation and Waterproofing in Larchmont, NY

Crawlspace Encapsulation and Waterproofing in Larchmont, NY

Before After
Crawlspace Encapsulation and Waterproofing in Larchmont, NY Crawlspace Encapsulation and Waterproofing in Larchmont, NY

We transformed this old, drafty, wet crawlspace into a neat, dry storage space using CleanSpace liner and SilverGlo insulation. 

Crawlspace Waterproofing in Larchmont, NY

Crawlspace Waterproofing in Larchmont, NY

Before After
Crawlspace Waterproofing in Larchmont, NY Crawlspace Waterproofing in Larchmont, NY

Water was seeping into this crawlspace until our team came in and installed the CleanSpace liner, which acts as a vapor barrier and prevents water from entering the home.

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

Your Certified Larchmont, NY Basement Finishing & Crawl Space Repair Contractor

...I would recommend them to family, friends and whoever has had any problems in their basements!...
Happy Customers Surrounding Larchmont, NY
Work Requests

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Reviews From Larchmont
Testimonials From Larchmont
We had a pipe leak in the basement, and a couple of people recommended Basement Systems...
Testimonial by Susan from Larchmont, NY
I was very happy with the installation.
Testimonial by Leslie C. from Larchmont, NY
Will only request Ailton. You are LUCKY to have him!
Testimonial by David M. from Larchmount, NY

Basement Waterproofing & Crawl Space Repair in Larchmont, New York

Do you have water in the basement? Is your crawl space damp? This leads to mold, rot, musty odors and structural issues. It also leads to a reoccurring headache for you. Luckily, our trained experts are available to permanently fix the problem.

We will properly install a hidden drainage system in your Larchmont basement and completely encapsulate your crawl space with CleanSpace vapor barrier. We are here to solve the problem for you.

Why Choose Us?
  • Lifetime Warranty on all Perimeter Waterproofing Systems
  • 25-year Warranty on Crawl Space Encapsulation Systems
  • Sump Pump Installation, Repair & Replacement
  • Basement, Crawl Space & Spray Foam Insulation
  • Basement Egress Windows
  • Crawl Space & Basement Dehumidifiers
  • Over 27 Years of Experience
  • Hundreds of Satisfied Customers

Basement Finishing & Remodeling in Larchmont, NY

Waterproofing your basement prevents outside water from coming in but what if a pipe bursts or the water heater leaks inside the home. A newly finished basement done by your average contractor will mold and rot if there is an internal leak. You'll have to tear out your new basement! We fix this issue.

Our Products Include :
  • Waterproof, washable, insulated walls           
  • Mold-Resistant, No-Sag suspended ceiling
  • Modular carpet, tile & faux wood flooring

  • Energy-efficient, double-paned basement windows
  • Attractive Sunhouse basement window wells
  • French, bifold, louvre & six-paneled steel doors
Unlike the average Larchmont contractor we use completely inorganic, waterproof materials. Even if the basement floods your walls and floors will not be damaged by the water. These waterproof products are patented and are built to create an attractive finished basement that lasts a lifetime.

Structural & Foundation Repair in Larchmont

Foundation problems destroy your Larchmont home’s value and can be dangerous. Our in-house team of structural and geo-technical engineers are here to help. We design and install the right solution and usually have the project finished in less than a week. You will have peace of mind as we provide a 25-year written warranty against defects on our foundation products.

We Fix
  • Bowing Walls
  • Sagging Floors
  • Stair-Step Cracks
  • Tilting Chimneys  
  • Foundation Cracks
  • Garage Slabs   
We Use
  • Wall Anchors
  • Slab Piers
  • I-Beam Wall Braces
  • Sticking Windows
  • Underpinning



Work Requests From Larchmont, NY
Project Location: Larchmont, NY
Have some small puddles forming daily in my basement where I'd like help fixing and identifying the cause. Would also like a check on the sub pump to explore battery backup.
Project Location: Larchmont, NY
Damp crawl space and insulation needs replacing
Project Location: Larchmont, NY
Flooded in ida Thought pump was fixed now having water geysers from sump pump into my basement
Project Location: Larchmont, NY
I just bought a new home. Sump pump needs updating as per our inspector. I'm also interested in creating additional storage space and Lorraine highly recommended you. Thanks in advance!
Project Location: Larchmont, NY
We had 4.5 feet of water in our basement during Ida and would like to schedule a consultation to determine how we can waterproof our basement to minimize future flooding.
Project Location: Larchmont, NY
We are compiling estimates to refinish our basement after Ida and we would like to hear from you as well.
Project Location: Larchmont, NY
I would like to get a back up battery for my sump pump
Project Location: Larchmont, NY
Had water in the basement from IDA
Project Location: Larchmont, NY
Recent basement flooding from Hurricane Ida into finished basement, concern for mold
Project Location: Larchmont, NY
We have a VERY dry basement and would love to use the space for my kids to play once the weather gets cold
Project Location: Larchmont, NY
We flooded in Ida. Had 2 ft of dry wall removed. Looking for options 1. to prevent flood in the future and 2. minimize the repairs needed if we do get water.
Project Location: Larchmont, NY
Our basement was badly hit during the storm earlier this month. We'd like to redo the waterproofing and ensure that the basement is completely dry.
Project Location: Larchmont, NY
We had water in our basement for only the 2nd time in 22 years. We are interested in a drain system and a sump pump.
Project Location: Larchmont, NY
Basement waterproofing Installation of additional sump pump
Project Location: Larchmont, NY
Would like professional opinions and quote on installing and repairing drainage after Ida grown water flood
Project Location: Larchmont, NY
1. Basement has a wall behind with occasional mold build up. Mold Inspector has provided report. 2. Need to discuss remediation solutions to draw moisture away from behind wall.
Project Location: Larchmont, NY
Basement wall leaks. Install Sewer pump system
Project Location: Larchmont, NY
Project Location: Larchmont, NY
My house has a finished basement, but it's never been particularly pretty. We've been meaning to redo it for a while, but with the storm this week the entire thing flooded. Now a full basement redo is urgently needed, along with waterproofing and mold checking.
Project Location: Larchmont, NY
Needing to repair basement dry wall and baseboards because of water damage. Would be great to have someone out soon if possible.