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 New London
Basement Waterproofing in New London CT

Basement Waterproofing in New London CT

Before After
Basement Waterproofing in New London CT Basement Waterproofing in New London CT

The B. Family had a crack in their basement that was a real pain. Every time it rained, water would come into the basement, and anytime it snowed, the snow would eventually melt and water would come in. The homeowners called the experts at Connecticut Basement Systems to make sure the issues was taken care of. We came in and diagnosed the problem and recommended our FlexiSpan® crack repair system. 

The FlexiSpan® is unlike hydraulic cements and some epoxies: the special polyurethane polymer sealant used for FlexiSpan® will never dry out or re-crack even given the natural movement of the foundation wall over long periods of time. The homeowners can now rest assured that the basement will not take on water from that crack.

WaterGuard and CleanSpace in New London, CT

WaterGuard and CleanSpace in New London, CT

Before After
WaterGuard and CleanSpace in New London, CT WaterGuard and CleanSpace in New London, CT

This New London basement had reoccurring water issues that were making the area unusable. The constant water would leave a musty odor and the clean-up process was beyond frustrating for the homeowner. She wanted a solution to solve the constant water problem and to get rid of the distressing smell. The homeowner decided to call Connecticut Basement Systems for a free home estimate. 

The solution for this basement was to install a WaterGuard System. This system is installed internally around the perimeter of the walls and then is concealed with cement. (You can see the wet cement in the after photo.) The WaterGuard System will collect water internally and channel it out to the sump pump. The sump pump will then take the water and disperse it through the discharge line. A CleanSpace liner is beneficial for this basement because it acts as a moisture barrier which will prevent any water from seeping through the walls. (You can see the CleanSpace Liner on the walls in the after photo)

Once the installation was finished, the basement was waterproofed and the musty odor was eliminated. This is exactly what the homeowner wanted and could not be happier 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

New London, CT's Devoted Basement & Bowing Wall Repair Contractor

You did a fabulous job. Worth every cent!!!...
Happy Customers Surrounding New London, CT
Work Requests

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Reviews From New London
Testimonials From New London
Our sales person gave me his cell number and checked on us during a really wet few days. He even responded to me at like 9:00pm when I texted that I was...
Testimonial by Margaret from New London, CT
Your salesman didn't make it seem like we were being sold stuff but more giving information and recommendations on how to resolve the problem.
Testimonial by Lisa H. from New London, CT
I chose your company because you have the best customer service and because of your innovation and thoroughness of presentation.
Testimonial by Sherri V. from New London, CT

Responsible basement waterproofing, foundation repair, basement finishing, crawl space repair company serving New London, 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 New London, CT.

Services we offer in New London:

  • 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 New London, CT
Waterproofing in New London CT

Wet spots in a basement are always a sign of concern and, when Susie D. found them in her basement, she knew that towels would help only so much.  Susie began researching companies and found Connecticut Basement Systems soon after.  She then met with waterproofing specialist Michael Lane, who had a solution to her water spot problem.

With Michael’s guidance, Luis and his crew came in and installed a Trench Drain and WaterGuard combo to ensure the current water would drain effectively out of her basement.  A SuperSump sump pump was also installed to ensure future flooding would be a problem of the past.  Finally a SaniDry Dehumidfier was installed to eliminate all future threat of excess moisture in the basement.

With Susie’s basement taken care of, Susie knows that the experts at Basement Systems know what they are doing and will hopefully continue to use their expertise for any of her future house problems!

Work Requests From New London, CT
Project Location: New London, CT
I would like to flooring to my basement floor Thermal Dry tiles actually
Project Location: New London, CT
I'm doing a basement remodel, I've had new sheet rock put up and made a bedroom area, that area, the main living space, the bathroom and laundry room needs flooring, new ceiling tiles, 3 vew windows and the outside window wells, an inside door leading through a small entranceway to the sideyard and an external door. I'd like to get a shower installed and replaced the bathroom vanity.
Project Location: New London, CT
Comment: Source BrandBlaster Service TBF
Project Location: New London, CT
Wet, very humid smelly basement. Mold concerns. Historic home. Partial dirt crawlspace needs to be finished
Project Location: New London, CT
Project Location: New London, CT
We have a leaky basement near the bulkhead and a window area that needs repair. Looking forward to hearing from you.
Project Location: New London, CT
Our local plumber suggested contacting you to take a look at our basement and make some suggestions. This is a medical office and the basement has had issues with water for years so we would like to explore some options going forward
Project Location: New London, CT
I would like to have a dehumidifier installed.
Project Location: New London, CT
Selling home and need to have repairs made to beams in crawl space found by home inspection. 1 beam has prior termite damage & another sagging.
Project Location: New London, CT
I am looking to reconfigure my basement as well as have it inspected for issues prior to making any changes.
Project Location: New London, CT
Wet basement, needs to be waterproofed, and refinished
Project Location: New London, CT
The crawl space is about 14 feet by 26 feet, the floor upstairs get cold during winter time so I think i may need insulation also, sometimes it does get wet from water coming from the back but it dries fast just need an estimate to see if I can afford it now or for next year, thanks
Project Location: New London, CT
Looking for quote to remodel basement.
Project Location: New London, CT
Basement is in decent shape and we don't get any water after storms. We would like to also install at least a half bath down there, but a full bath with small stand up shower would be ideal if we have the clearance. We are in a crunch to get this done before October, so time is also a major concern.
Project Location: New London, CT
Having occasional flooding in my basement during winter and spring seasons.
Project Location: New London, CT
Intrested in sealing 800 sf crawl space that opens to basment?
Project Location: New London, CT
I have a 1928 home that gets water in around the foundation when it rains heavily. I'm finally ready to do something about it.
Project Location: New London, CT
Ground water leaking into basement
Project Location: New London, CT
Flooding in basement from ground water. Sump pump can't cover entire basement.
Project Location: New London, CT
Occasionally, during heavy rains, the basement will flood from the bulkhead and less so from a few spots around the foundation. There are a few small foundation cracks. I believe a French drain was installed, but the drain the floor is not at the lowest point and seems to constantly show water near the top. I need a better solution to keeping my basement free from water.