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 Derby
Basement Transformation in Derby, CT

Basement Transformation in Derby, CT

Before After
Basement Transformation in Derby, CT Basement Transformation in Derby, CT

This basement in Derby, CT was crowded, uninviting, and not a space the family felt comfortable using. They wanted to turn it into a space they could use year round, so they called Connecticut Basement Systems to get the job done.

Micah Smith came out to the home, and quickly surveyed what could be done to this space. He brought out Sheldon Lennon and his team, and they quickly got to work! They first air sealed the entire home with rim joist insulation. This insulation is important to keeping the basement warm, and it is an affordable option that is high coverage. They then installed ThermalDry floor tiles in sandstone gray. These tiles are a great option because they can snap together over concrete, and create a great thermal barrier, so your feet are never cold! We also installed Everlast wall panels around the entire basement. These panels are made of inorganic materials and great for the basement environment!

This basement completely transformed into a space this family can now use for whatever they please! Call us TODAY for your free basement finishing estimate!


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

Complete Bowing Wall Repair & Basement Remodeling Services in Derby, CT

Very courteous and clean. Covered his boots and worked quietly. Very nice and respectful. Will request Dan O....
Happy Customers Surrounding Derby, CT
Work Requests

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Reviews From Derby
Testimonials From Derby
Phil was courteous, considerate and I love the service! I will request him in the future!
Testimonial by Joan M. from Derby, CT
Dear Larry Janesky, I wanted to personally thank you for assigning your service technician, Ailton Dos Santos, to do the follow-up work on a new install at...
Testimonial by Heike H. from Derby, CT

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

Services we offer in Derby:

  • 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 Derby, CT
Foundation Transformation in Derby, CT

Phyliss G. in Derby, CT was looking to fill the cracks in the walls of her home, as she was beginning to worry about guests seeing them when she invited them out! She gave us a call at Connecticut Basement Systems to help, and we were happy to find a solution!

Our System Design Specialist, Glen Kerpchar, came to help Phyliss with the solution she needed. Justin Vizard and his team came out, and injected a polyurethane foam into the cracks to make them disappear. By injecting this, we were able to make her walls look much more presentable, and we were able to make her feel comfortable when inviting guests into her home.

Call us today for your FREE estimate!

Work Requests From Derby, CT
Project Location: Derby, CT
Needs basement waterproofing
Project Location: Derby, CT
Want to turn a small area into a finished area for storage and office.
Project Location: Derby, CT
Would like to get an estimate for my house basement
Project Location: Derby, CT
I would like to finish a basement
Project Location: Derby, CT
Hoping to get a quote on finishing our basement. It doesn't have water issues generally, but we've had ground water seep in one-two times over the past two years. Would like recommendations on waterproofing prior to finishing, and get a price for an entire job.
Project Location: Derby, CT
Wet basement
Project Location: Derby, CT
Tonight is the second time my finished basement has leaked water through what appears to be the seam on one side of the finished part of the basement.
Project Location: Derby, CT
Water coming thru cement in garage and storage area. Looking for estimate since I am getting little response from condo association and cannot keep crawling in storage area everytime it rains. Thank you.
Project Location: Derby, CT
Small leaks that will eventually amount to a lot of water. This only happens when it rains extremely hard. I used drylock. Helped a lot but just tired of the leaks and having to paint floors again.
Project Location: Derby, CT
Basement leaks when it rains and drains in front of garage.
Project Location: Derby, CT
I have flooding in basement and attached garage when it rains it doesn't matter if it rains a lot or little water seems to find it's way into the basement which later causes mold problems.
Project Location: Derby, CT
Selling my home and want to repair (3) vertical foundation cracks prior to home inspection.
Project Location: Derby, CT
Live in small ranch approx 950 Sq Ft. Looking to have half the basement finished (other half for utilities). Major items would be flooring solution, walls, ceiling, and sound proofing. Goal is to have partial entertainment space and partial band rehearsal space (be nice to neighbors). Also interested in adding a bath (up flow) so would like to know if that is something your team does as well. Look forward to hearing from you. Thanks!
Project Location: Derby, CT
Ground water leaking into basement laundry room has become progressively worse in the past year, can't keep up with it. Possible sump pump and/or waterproofing candidate?
Project Location: Derby, CT
We have a basement we would like finished
Project Location: Derby, CT
We'd like to finish our basement. It's about 25'x17' with stairs/furcace setup in center. No damage, concrete painted floor. One bilco door. Would like a quote on complete finishing - also wondering if you are able to do the following: Carpeting, stair rebuild, storage cabinets. A rough estimate is perfect for now. THANK YOU!
Project Location: Derby, CT
Water leak in one corner of basement during heavy rain or melting deep snow
Project Location: Derby, CT
-Would like a finished basement with laundry area
Project Location: Derby, CT
I live with a family of 5 in a three bedroom condo. I currently share a room with my brother and am looking to move my room to the basement, however, it is unfinished. I am interested in finishing the basement, either part of it or the whole basement, depending on the price.
Project Location: Derby, CT
I currently have a sub pump but am looking for a better quality one for the corner of my basement.