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 Waterproofing & Crawl Space Repair Contractor

We had a pipe leak in the basement, and a couple of people recommended Basement Systems......
Happy Customers Surrounding Larchmont, NY
Work Requests

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Reviews From Larchmont
Testimonials From Larchmont
...I would recommend them to family, friends and whoever has had any problems in their basements!
Testimonial by John 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

Larchmont, NY'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 New York 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 Larchmont:

  • 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 Larchmont and areas nearby!

Trusted basement waterproofing company serving Larchmont

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 Larchmont:

  • 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 Larchmont 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 Larchmont

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 Larchmont:

  • 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 Larchmont and areas nearby.

Reliable crawl repair & encapsulation services in Larchmont

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 Larchmont:

  • 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 Larchmont and areas nearby.

Transform your home with basement finishing in Larchmont

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 Larchmont:

  • 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 Larchmont 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 Larchmont - 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 Larchmont and nearby areas.

Work Requests From Larchmont, NY
Project Location: Larchmont, NY
Basement has wet baseboards and a waterproofing system was recommenced by the home inspector.
Project Location: Larchmont, NY
Flooded basement !
Project Location: Larchmont, NY
We just moved into our new home a week ago. After a week of rain, the basement stayed dry. However, last night, after a full day of torrential downpour, water came up from the ground, leading to roughly a half an inch of water in the basement. We would love to understand what our options are to keep the basement dry in the future, as well as the associated costs.
Project Location: Larchmont, NY
Basement flooding and crawl space
Project Location: Larchmont, NY
Waterproof one room basement room that gets flooded
Project Location: Larchmont, NY
Flooding in basement coming through foundation/baseboards
Project Location: Larchmont, NY
Some flooding in basement and garage. Mold likely present. House built in 1923. Purchased August 2021. Not well maintained by previous owners.
Project Location: Larchmont, NY
Our laundry room (in basement) floods in very heavy rains.
Project Location: Larchmont, NY
Water coming in to our garage and basement when there is heavy rain
Project Location: Larchmont, NY
I have a foundation that is sinking at one side of the house. My floors are not level. I am looking to stop and rectify the issue.
Project Location: Larchmont, NY
Sump pit continuously fills and existing pump doesnt seem to be draining it appropriately.
Project Location: Larchmont, NY
Hi Need a quote for a sump pump install please
Project Location: Larchmont, NY
Need to figure out how to waterproof lower level
Project Location: Larchmont, NY
Like many, a bit of water in the basement from time to time. Would like to discuss options, with a consideration to range of prices that go with those. Preferred contact is email to identify time for a home visit. Many thanks!
Project Location: Larchmont, NY
Looking to floor and wall a small basement area. 16 x 10
Project Location: Larchmont, NY
Just moved into our home a few months ago and have notice sitting water in our basement after heavier rain. Would like to have basement evaluated for potential problems as well as getting sump pumps battery operated.
Project Location: Larchmont, NY
Interested in a back up battery solution for our sump pump when power goes out. Also need to refinish basement since we cut out all the sheetrock in a recent flood.
Project Location: Larchmont, NY
Seal vertical cracks in concrete block foundation.
Project Location: Larchmont, NY
Area in basement where floor meets wall is damp: during a heavy rain we did get water.
Project Location: Larchmont, NY
Sump pump system for yard drains