Serving Connecticut, Westchester and Putnam Counties

Basement Waterproofing

Expert Basement Waterproofing Services throughout CT & Westchester County

Patented, proven solutions for wet, leaky, damp, and musty basements

Here at Connecticut Basement Systems, basement waterproofing is our specialty. Since 1987, we've fixed thousands of leaky, wet, damp and musty basements in Connecticut. We've built a strong reputation in Connecticut for being the best waterproofing company and we always strive to be better than the rest.

We help keep basements dry using our own quality, patented products, such as the TripleSafe sump pump, WaterGuard drainage system and SaniDry dehumidifier. Our waterproofing systems are installed by certified specialists and come with a transferable, lifetime warranty.

If you have a water problem in your basement in Stamford, Norwalk, West Hartford, or the nearby areas, we can help. Call us or click below to request a no-obligation inspection and free estimate today. We want to help you make your basement dry all the time!

We make your basement dry with customized solutions

Our complete lineup of basement waterproofing products includes all the solutions you need for a dry, comfortable, odor-free basement; no matter what’s causing your issues. We offer many solutions for your home, including:

  • Powerful sump pumps with battery backup
  • Basement drainage systems
  • Energy-efficient dehumidifiers
  • Leaky crack repairs
  • Vapor barriers
  • Waterproof wall panels and flooring
  • Basement windows
  • Water heater flood protection

Besides being the trusted waterproofing company in Connecticut, we're also the flagship company of the largest network of basement waterproofing contractors. Our products have been installed in hundreds of thousands of basements and crawl spaces throughout North America.

With no lasting waterproofing solutions available, we decided to develop our own, and created a line of patented basement products. Our tested, proven, award-winning products come with transferable warranties, ensuring your home is protected year after year. 

BEFORE
TripleSafe Sump Pump Installation in Old Greenwich, CT
AFTER
TripleSafe Sump Pump Installation in Old Greenwich, CT
TripleSafe Sump Pump Installation in Old Greenwich, CT
Learn More
BEFORE
TripleSafe Sump Pump Installation - Wallingford, CT
AFTER
TripleSafe Sump Pump Installation - Wallingford, CT
TripleSafe Sump Pump Installation - Wallingford, CT
Learn More
BEFORE
Waterproofing in Pelham, NY
AFTER
Waterproofing in Pelham, NY
Waterproofing in Pelham, NY
Learn More
BEFORE
WaterGuard System in Hastings-on-Hudson, NY
AFTER
WaterGuard System in Hastings-on-Hudson, NY
WaterGuard System in Hastings-on-Hudson, NY
Learn More

Get a free estimate from your local basement repair expert

Your damp or wet basement can cause more than just a headache; these issues can create bigger problems like mold, mildew, rot, structural damage, and a variety of health problems.

If you think you have a basement waterproofing problem, request a free basement inspection and estimate today. Your certified specialist will find the source of the problem and provide an estimate for the best repairs for your home.

Connecticut Basement Systems offers complete basement waterproofing services in Stamford, Norwalk, West Hartford, Greenwich, Fairfield, White Plains, Hamden, Poughkeepsie, Milford, Trumbull and throughout the surrounding areas.

How to Waterproof Leaky Stone Foundations

Welcome to Episode 1 of the All Things "Basementy" Video Series! In this series Larry Janesky, owner and...

Play Video

Basement Waterproofing Simsbury,...

Play Video

Customer Testimonial

Play Video

Total Basement Finishing Job Sold...

Play Video

Customer Testimonial for Basement...

Play Video

Seymour, CT Video Testimonial

Play Video

Exterior Excavation

Heavy equipment is brought in to dig out the entire perimeter of the basement. New drain lines are installed, and sometimes a waterproof coating is applied to foundation walls. This waterproofing strategy is expensive and often damages lawn and garden areas. Exterior drains are prone to clogging with silt and roots over time.

Interior Subfloor Drain

This drain line is installed underneath the basement floor, just inside the foundation walls. The hidden drainage system brings water to a sump pit, where a sump pump automatically pumps it outside. Also known as a French Drain, this system is not prone to clogging; it’s reliable and easy to service.

Interior Baseboard System

A hollow plastic baseboard is installed along the base of basement walls to form a drainage channel that directs water to a sump pump system. A baseboard-type drainage system is sometimes recommended when the basement slab is too thin to accommodate a French Drain.

Negative-side Sealant

This waterproofing technique involves "painting" basement walls and floors with a waterproof, cement-based coating that's supposed to seal out moisture. Even when applied correctly, this thin membrane usually fails in response to prolonged hydrostatic pressure from outside the foundation.