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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
PolyLevel Concrete Leveling & Lifting
Mudjacking & Slab Jacking Alternatives
Concrete Sidewalk Repair & Leveling
EZ Post Deck Repair
Shotcrete Wall Restoration
Foundation & House Leveling


Basement Finishing & Remodeling
Everlast Wall Panels
Insulated Wall Panels
Premier And Linen Ceiling Tiles: No-sag Warranty
Thermal Dry Floor Tiles
Millcreek Faux Wood Flooring
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Basement Egress Windows


Before and After Pictures from Greenwich
Basement Remodeling in Greenwich, CT

Basement Remodeling in Greenwich, CT

Before After
Basement Remodeling in Greenwich, CT Basement Remodeling in Greenwich, CT

Our team transformed this cold, unwelcoming basement into a bright, usable space for the homeowners! Their remodeled basement features our EverLast walls, a dropped ceiling, and recessed can lighting. 

Home Gym Renovation in Greenwich, CT

Home Gym Renovation in Greenwich, CT

Before After
Home Gym Renovation in Greenwich, CT Home Gym Renovation in Greenwich, CT

With the installation of no-sag dropped ceiling tiles and mold-proof EverLast walls, we transformed this old basement into a beautiful home gym that last for years to come!

Transformed Home Gym in Greenwich, CT

Transformed Home Gym in Greenwich, CT

Before After
Transformed Home Gym in Greenwich, CT Transformed Home Gym in Greenwich, CT

This old home gym was poorly lit and drab, with exposed ducts and pipes. Our team installed a mold-resistant dropped ceiling and the  EverLast wall system to transform the basement into a comfortable, beautiful space to work out in.

Company Awards
We are happy to receive the 2016 Super Service Award from Angie's List! Angie's List Super Service Award 2016 winners... [Read more]
We are proud to be one's Top Rated Professionals! More than 90% of homeowners that have left us positive... [Read more]
Larry Janesky was awarded the Valley Chamber of Commerce's Silver Medal Award for the Big Build at Ansonia Nature Center!... [Read more]
More Awards

Connecticut Basement Systems serving Greenwich, CT

Jason is a man of integrity and his actions reflect so well on yourcompany. We will always recommend Ct Basement....
Happy Customers Surrounding Greenwich, CT
Work Requests

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Reviews From Greenwich
Testimonials From Greenwich
I think your crew is professional and courteous.
Testimonial by Linda T. from Greenwich, CT
Overall the crew was very courteous and polite
Testimonial by Neil F. from Greenwich, CT
I am very satisfied with the job you did for me. Your website, references and professionalism of your phone staff sealed the deal.
Testimonial by Max B. from Greenwich, CT

Responsible basement waterproofing, foundation repair, basement finishing, crawl space repair company serving Greenwich, Connecticut 06830, 06831, 06836

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 Greenwich, CT.

Services we offer in Greenwich:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Concrete Lifting and Leveling for settled slab / mudjacking alternatives
  • 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 Greenwich, CT
Water Seepage into Basement in Greenwich, CT

Water seepage into Mike A's Greenwich, Connecticut basement was causing a mold problem and Mike got on the Internet and searched for "seepage causing mold."  He was in luck and filled out a contact form on

On October 26th system design specialist Joe Pascarella came out to Mike's Greenwich home and performed a thorough inspection and measurement of the basement.  He then went over the cause of the problem -- water entering the basement through the floor-wall joint -- and a solution -- the installation of our WaterGuard drainage channel system that would drain to a SuperSump sump pump system.  They also decided on the installation of the SaniDry dehumidifier and air filter system, to really create a dry, usable basement space.

In addition to the waterproofing and dehumidification system, Connecticut Basement Systems also sprayed Mold X to neutralize the existing mold. 

Leaking Wall Cracks in Greenwich Home

When Brian G. called us out to his Greenwich home he had concerns with water leaks around his Electrical conduit, a pipe penetration through the foundation wall, and other slight cracks beneath.  Brian had used Connecticut Basement Systems before when we waterproofed a new building of his. 

In this case we injected polyurethane around the pipe penetration through the thickness of the wall and then put our patented FlexiSpan wall crack repair system over the wall cracks and drained this beneath the basement floor. Problem solved.

Sump Pump Upgrades Include a Battery Backup pump in Greenwich, CT

Joe Pascarella helped Ken B. to upgrade his SuperSump system that had been installed by us a few years ago to add the UltraSump Battery Backup Pumping System.  

In all cases, one of our SuperSumps can be upgraded with a battery backup pump for those events where the power goes out, the pump gets unplugged, or the SuperSump doesn't turn on for any reason.  And as a waterproofing company since 1987, we know that most basement get wet after a waterproofing systems has been installed because of a pump failure. 

CleanSpace and a SmartSump Keep this Greenwich Crawlspace Dry

Bruce Blanchette was called out to Clayton R's home in Greenwich, CT due to a wet crawlspace.  Bruce found a musty crawlspace with some standing water. He recommended sealing the crawlspace with the CleanSpace vapor barrier to lower the relative humidity and help prevent the damp musty oder, and added a SmartSump crawl space sump pump system to handle the water.  Sid Avis and his crew were able to install the entire system in one day which included the WaterWatch Alarm and CleanPump Stand in the SmartSump Liner.

Work Requests From Greenwich, CT
Buena Vista Drive in Greenwich
Foundation in garage
Stanwich Road in Greenwich
Just moved into new home last month and now have discovered water in the business after recent rain and snow melt. Would appreciate a consultation at my home. thank you
Highland Farm Road in Greenwich
Have a water issue in an existing basement. Poured concrete walls and slab. Water is making it's way up through the slab expansion joint at the wall in one location only. Have a picture I can submit but wanted to set up an appointment to meet someone at the client's home to review, discuss options and price repair.
Cooper Beach Road in Greenwich
Voicemail-Existing customer would like service for her sump-pump in crawlspace , somethings wrong crawlspace is flooded . Would like someone to call her back , had it waterproofed 3 years ago.
Copper Beech Rd in Greenwich
Existing customer .Basement waterproofed . Water in the corner of the basement. Appointment set

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