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Got a wet basement? Musty odors? Protect your home with our proven solutions & lifetime warranty.

A dry, healthy home starts here.
Contact your local dealer or call 1-800-638-7048

zip code: 94040

Your Local Dealer is

Clean CrawlSpace Inc.

Larry Janesky Headshot

Connecticut Basement Systems

33 Progress Avenue
Seymour, CT 06483
Mon-Fri 8:00am-5:00pm
In business since 1987

Larry Janesky's Connecticut Basement Systems has over 30 years of experience as the largest local basement waterproofing, crawl space encapsulation, foundation repair, and basement finishing contractor serving Connecticut and Westchester County, NY. They've helped more than 80,000 homeowners dry their wet basements and fix their dirt crawl spaces and they're ready to help you too!

As the authorized Basement Systems company in Connecticut and Westchester County, NY, customers can benefit from:

  • Proven Products and Recognized Customer Service
  • Trained, Experienced Basement Waterproofing, Crawl Space & Foundation Repair Specialists
  • Lifetime Warranties - Ask for Details
  • Competitive Financing Options for Qualified Borrowers
  • Free, No-Obligation Estimates - Contact Today!


  • Basement Waterproofing, including interior concrete waterproofing and foundation waterproofing to help prevent basement flooding.
  • Crawl Space Encapsulation to help protect against mold, rot, and moisture problems.
  • Moisture Control for basements and crawl spaces to help prevent mold, rot, and musty odors.
  • Foundation Repair for cracks, bowing walls, uneven floors, and more.
  • Basement Finishing to create a comfortable, usable space.

Products Installed:

  • Sump Pumps - Primary & Battery Backup Systems
  • Interior Drainage Systems
  • Crawl Space Vapor Barrier & Encapsulation System
  • Energy-Efficient, Self-Draining Dehumidifier
  • Waterproof, Mold-Resistant Finished Walls and Flooring
  • Foundation Piers & Wall Anchors

Service Area:

Proudly serving all of Connecticut, including Fairfield County, New Haven County, Hartford County, Litchfield County, Tolland County, Windham County, Middlesex County, and New London County. This includes the cities and towns of Bridgeport, Danbury, Fairfield, Hartford, Milford, New Haven, New London, Norwalk, Stamford, Wallingford, Westport, and surrounding areas.

In New York, they service Westchester County, Ossining, New Rochelle, Port Chester, Peekskill, Mount Vernon, Scarsdale, Tarrytown, and nearby.

See before and after photos of wet basements, dirt crawl spaces, and foundations they've fixed and browse reviews and testimonials from more than 2,000 customers below! Call today to schedule your free evaluation and estimate.

By Charles A.
"I am quite sure that I made the right choice in my huge investment to return to a dry basement. If..."
By Dr. B.
"Thank you for a job well done. The system works so well. 100 % of the water is now diverted and the..."
By Mark L.
"Overall fantastic, now no more water!"
Megan/Jeff T.
Fairfield, CT
Had work done by Connecticut Basement Systems before...
Kathleen/Russell Z.
Fairfield, CT
The crew was good...
Judy C.
Fairfield, CT
Your reputation precedes you...
Connecticut Basement Systems Before & After
  • FloodChek Washing Maching Hoses
    FloodChek Washing Maching Hoses

    FloodChek Washing Maching Hoses

    People often forget to shut off the water valves when they're not doing laundry. This means that their washer hoses remain constantly pressurized at about 60 pounds per square inch. A regular cunsumer grade hose is not strong enough to handle this, and upon failure, up to 650 gallons per hour can shoot out of a standard size hose. That's more than 2.5 tons of water per hour!
    FloodChek hoses are the finest, safest washing maching hoses in the world. FloodChek hoses are guaranteed for twenty years, or the life of your washing machine against failure due to defective design, materials and workmanship.
  • Leaky Basement Wall in Connecticut!
    Leaky Basement Wall in Connecticut!

    Leaky Basement Wall in Connecticut!

    Here we have a leaky basement corner wall that would release water and flood the basement. With our crack repair products this CT basement will never have to worry about flooding again! 
  • Sump Pump installation in CT
    Sump Pump installation in CT

    Sump Pump installation in CT

    In this basement we updated the sump pump to our SuperSump pump. 
  • New SuperSump Pump Installed
    New SuperSump Pump Installed

    New SuperSump Pump Installed

    We replaced this old, dirty sump pump with our patented SuperSump system. The SuperSump features an airtight lid, which keeps odors and humidity out, while protecting your sump from debris from the basement floor. The new SuperSump also includes a powerful Zoeller ⅓ horsepower cast-iron sump pump, capable of pumping 2,500 gallons of water per hour out of your basement.
2017 Angie's List Super Service Award

2017 Angie's List Super Service Award

Larry Janesky award the Valley of Chamber of Commerce's Silver Medal Award

Larry Janesky award the Valley of Chamber of Commerce's Silver Medal Award

Best Places to Work

Best Places to Work

Dale Schofield

Collections Analyst

Lisa Pantaleo

Senior Appointment Center Representative

Susan Graham

Senior Service Specialist

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zip code: 94040

Your Local Dealer is

Clean CrawlSpace Inc.

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