Serving Connecticut, Westchester and Putnam Counties

Contact Us For
A Free Estimate!
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 Harrison
Wet and dark basement turned into prime living space in West Harrison, NY!

Wet and dark basement turned into prime living space in West Harrison, NY!

Before After
Wet and dark basement turned into prime living space in West Harrison, NY! Wet and dark basement turned into prime living space in West Harrison, NY!

Our team transformed this dark and depressing space into a well lit, dry and inviting space! What would you do with all of this extra space?

New Sump Pump Installation in Harrison, NY

New Sump Pump Installation in Harrison, NY

Before After
New Sump Pump Installation in Harrison, NY New Sump Pump Installation in Harrison, NY

This old, open sump pump was not doing its job. It clogged frequently, and couldnt't pump large amounts of water out of the basement. We installed our TripleSafe sump pump in its place, along with a WaterGuard perimeter drain. The TripleSafe is our most reliable sump pump system, with three levels of protection for the basement and the owner's peace of mind. 

WaterGuard Perimeter Drain in Harrison, NY

WaterGuard Perimeter Drain in Harrison, NY

Before After
WaterGuard Perimeter Drain in Harrison, NY WaterGuard Perimeter Drain in Harrison, NY

The owners of this Harrison, NY home always got a wet basement when it rained, so they gave us a call. We installed a WaterGuard perimeter drain in their home, which is beneath the drying cement in this picture. It will capture any water before it enters the home and redirect it to their sump pump system. The unique shape and large drain openings of WaterGuard aid in preventing clogs in the system, so the owners of this home can have peace of mind during bad rainstorms.

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

Your Respected Harrison, NY Basement Finishing & Waterproofing Contractor

I was very impressed with Dan’s knowledge and overall performance. ...
Happy Customers Surrounding Harrison, NY
Work Requests

Click the icons to see what our customers had to say.

Reviews From Harrison
Testimonials From Harrison
We just used Ct. Basement to upgrade our basement from "dungeon" to presentable. As we are preparing to move in the next year or two we didn't want to incur a...
Testimonial by Vicki S. from Harrison, NY

Basement Waterproofing & Crawl Space Repair in Harrison, New York

Do you have water in the basement? Is your crawl space damp? This leads to mold, rot, musty odors and structural issues. It also leads to a reoccurring headache for you. Luckily, our trained experts are available to permanently fix the problem.

We will properly install a hidden drainage system in your Harrison basement and completely encapsulate your crawl space with CleanSpace vapor barrier. We are here to solve the problem for you.

Why Choose Us?
  • Lifetime Warranty on all Perimeter Waterproofing Systems
  • 25-year Warranty on Crawl Space Encapsulation Systems
  • Sump Pump Installation, Repair & Replacement
  • Basement, Crawl Space & Spray Foam Insulation
  • Basement Egress Windows
  • Crawl Space & Basement Dehumidifiers
  • Over 27 Years of Experience
  • Hundreds of Satisfied Customers

Basement Finishing & Remodeling in Harrison, NY

Waterproofing your basement prevents outside water from coming in but what if a pipe bursts or the water heater leaks inside the home. A newly finished basement done by your average contractor will mold and rot if there is an internal leak. You'll have to tear out your new basement! We fix this issue.

Our Products Include :
  • Waterproof, washable, insulated walls           
  • Mold-Resistant, No-Sag suspended ceiling
  • Modular carpet, tile & faux wood flooring

  • Energy-efficient, double-paned basement windows
  • Attractive Sunhouse basement window wells
  • French, bifold, louvre & six-paneled steel doors
Unlike the average Harrison contractor we use completely inorganic, waterproof materials. Even if the basement floods your walls and floors will not be damaged by the water. These waterproof products are patented and are built to create an attractive finished basement that lasts a lifetime.

Structural & Foundation Repair in Harrison

Foundation problems destroy your Harrison home’s value and can be dangerous. Our in-house team of structural and geo-technical engineers are here to help. We design and install the right solution and usually have the project finished in less than a week. You will have peace of mind as we provide a 25-year written warranty against defects on our foundation products.

We Fix
  • Bowing Walls
  • Sagging Floors
  • Stair-Step Cracks
  • Tilting Chimneys  
  • Foundation Cracks
  • Garage Slabs   
We Use
  • Wall Anchors
  • Slab Piers
  • I-Beam Wall Braces
  • Sticking Windows
  • Underpinning



Job Stories From Harrison, NY
ThermalDry Flooring in Harrison, NY

This basement had floors that were unsatisfactory for the homeowner. They were unappealing and cold. Wanting a solution, the homeowner decided to call Connecticut Basement Systems to help find her a solution. 

On the day of the appointment, Sales Representative Rick Raucci arrived at the home to inspect the flooring of the basement. After his inspection, he concluded that new floors were needed and went over different flooring options. After reviewing with the homeowner, they decided to go with ThermalDry flooring. This is a great option because they will not support mold or mildew, cannot be damaged by water or humidity and are 8-10 degrees warmer than the concrete below. This is exactly what the homeowner wanted and decided to move forward with the project.

On the day of installation, Foreman Krzys Wilk and his team installed the flooring efficiently and professionally. The ThermalDry flooring is easy to install and is ready to use in about a day. The homeowner was impressed with the results and was glad she called Connecticut Basement Systems for their solution. 

Work Requests From Harrison, NY
Project Location: Harrison, NY
We moved in recently and have flooded twice
Project Location: Harrison, NY
Wet moldy basement
Project Location: Harrison, NY
Looking to get eyes on a basement water intrusion issue as problem is not visible/apparent.
Project Location: Harrison, NY
Garage flooding every time it rains, basement also getting water
Project Location: Harrison, NY
House has a crack running laterally across the foundation floor. floor is not level.
Project Location: Harrison, NY
Basement flooding issues.
Project Location: Harrison, NY
I am about to finish my basement, but might want to install a French Drain first. Also possibly repair a leaky wall crack.
Project Location: Harrison, NY
Replace garage sump pump/driveway french drain with a properly sized system. Spray foam garage ceiling to prevent draft in living room above. Address some leaks/cracks coming from cinder block foundation in garage.
Project Location: Harrison, NY
Looks to get estimates for both Concrete Lifting and repairing/replacing existing sump pump setup. The driveway and and garage have settled and cracked due to settling and want to get an estimate on repairing it. We have two sump pumps in our basement tied into a backup generator, but both stopped working a few weeks ago during the flash storm which caused some water to pool in the basement. I want to see what can be done to prevent this going forward.
Project Location: Harrison, NY
Comment: Service Basement Waterproofing Source Facebook/Instagram Homeowner? Yes
Project Location: Harrison, NY
I am looking to put down floor in the basement -- currently do not have anything installed, just concrete
Project Location: Harrison, NY
Recently purchased this home that has a main basement under the center of the house, on both sides connected to the main basement there are crawl spaces that need to be cleaned out and properly sealed. The mechanical equipment is all in the main part of the basement, however, there is some wiring and piping going through the crawl spaces. The crawl spaces have fallen insulation on the floor. There is no standing water that I see but clearly some moisture at some point in time. Looking to obtain a quote/estimate for cleaning out and properly sealing both crawl spaces. Many thanks!
Project Location: Harrison, NY
I need a whole basement dehumidification system. With a section that goes into a wine cellar. My current wine cellar humidity level is 75%. I would like it around 50-55%. With the prolonged rain, moisture got through the outer wall. Combined with the humidity level, white and green mold grew in the room. I had the outer wall sealed. And a mold remediation company is coming in to remove the mold. Now I need to deal with the humidity. Thanks.
Project Location: Harrison, NY
We have a recently renovated old house which we rent out. Our tenants noticed after Thursdays heavy rain that one of the inside basement walls is damp. I suspect it is an old problem but we had heavy rain earlier this summer and i didn't see the same sort of problem. Am interested in an assessment
Project Location: Harrison, NY
Water in basement, not completely sure where coming from
Project Location: Harrison, NY
Need redo for basement radon concern and sump pump needed
Project Location: Harrison, NY
My basement gets an ever so slight leak at very rare times. Hardly ever happens but it still prevents me from putting a rug or rubber tiles down. I need some advice on what the options are/an estimate to solve the problem.
Project Location: Harrison, NY
I'm looking for a basement waterproofing system that is affordable, reliable and guaranteed. I'm tired of stressing out whenever I hear of forecasted rain storms and then the clean-up afterwards. Thank you.
Project Location: Harrison, NY
We have a french drain in front of garage leading into a basin under the driveway. The basin has two sump pumps that pump out the water directly into the sewar. The sump pumps periodically stop working and we are looking for a better solution.
Project Location: Harrison, NY
Would like price on French drain, sump pump installed.