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
ThermalDry® Elite Plank Flooring
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 Waterproofing & Crawl Space Repair Contractor

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

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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...
Testimonial by Vicki S. from Harrison, NY
Very happy with Johnny's service and proposal for water issue mitigation.
Testimonial by Linda A. from Harrison, NY

Harrison, NY's expert in basement waterproofing, foundation repair, & more

Connecticut Basement Systems has been your trusted home improvement company providing reliable basement waterproofing, foundation repair, crawl space encapsulation, basement finishing, and more to over 85,000 New York homeowners since 1987. As a three-time winner of the CT Better Business Bureau's Torch Award for Marketplace Ethics, we are committed to creating an honest and reliable experience with our customers.

Whether you need a moisture-proof basement waterproofing system complete with a sump pump or permanent foundation settlement repairs, we provide these solutions and much more!

Our services in Harrison:

  • Basement waterproofing
  • Foundation repair
  • Crawl space repair
  • Basement finishing
  • Air purifiers
  • And more!

Schedule a free estimate to learn more. Connecticut Basement Systems proudly serves Harrison and areas nearby!

Trusted basement waterproofing company serving Harrison

A wet basement can affect your home more than you think. If left to worsen, water in the basement can cause structural issues, mold growth, pest problems, and more. That is why Connecticut Basement Systems provides patented basement waterproofing solutions, designed to keep your below-grade space dry and healthy for years to come! So, if you're tired of dealing with basement flooding, high humidity, water in basement, or other waterproofing issues, contact our experts today!

Our basement waterproofing services in Harrison:

  • Sump pump installation & maintenance
  • Basement drainage systems
  • Basement Dehumidifiers
  • Basement windows
  • Egress windows & window wells
  • And more!

Since 1987, we have provided warrantied basement waterproofing solutions to Harrison homeowners - this includes sump pumps, basement dehumidifiers, french drains, and more. Schedule a free basement waterproofing estimate to learn more!

Transform your home with basement finishing in Harrison

Want to transform your dreary basement into the space of your dreams? From a lavish apartment to a new play area for the kids, Connecticut Basement Systems can help you with these remodeling projects and more - the only limit is your imagination! Unlike other basement finishing contractors, we actually use remodeling products designed to withstand common environmental conditions in the below-grade space, including moisture and mold. Plus, the basement finishing system is warrantied, has insulating qualities, dampens noise, and is eco-friendly.

Our basement finishing system in Harrison:

  • Finished basement flooring
  • Waterproof wall products
  • Ceiling tiles
  • Basement dehumidifiers
  • Replacement windows
  • Egress windows & window wells
  • And more!

Schedule a free basement finishing estimate to learn more. We proudly serve Harrison and areas nearby.

Permanent foundation repair solutions in Harrison

No matter how minor your home's foundation problem seems, it is always better to schedule a foundation inspection and get repairs sooner than later. That is because issues like foundation settlement, leaning chimneys, bowing walls, and more can affect your house's value and curb appeal. Even worse, they can create unsafe living conditions for you and your family.

But there is no reason to worry - Connecticut Basement Systems is backed by Supportworks, a nationally renowned network of expert foundation repair contractors. This partnership also gives us exclusive access to professional training, warrantied solutions, and best practices proven by hundreds of dealers across the globe.

Our foundation repair services in Harrison:

  • Slab piers
  • Push piers
  • Helical piers
  • Foundation wall repairs
  • Crawl space support jacks
  • Wall anchors
  • Wall reinforcing systems
  • And more!

Schedule a free foundation repair estimate to learn more. We proudly serve Harrison and areas nearby.

Reliable crawl repair & encapsulation services in Harrison

A nasty crawl space can cause a lot of issues for the home. If left unrepaired and unsealed, the crawl space can start to rot and grow mold, leading to structural issues, unhealthy indoor air, and discomfort throughout the house. That is why Connecticut Basement Systems provides moisture-proof crawl space encapsulations and durable structural repairs.

When we seal the crawl space using a moisture-proof vapor barrier, add a high-performance crawl space dehumidifier, install crawl space jacks for failing support posts, and provide other crawl space repair solutions, we can create a dry, secure below-grade space for years to come!

Our crawl space encapsulation & repair services in Harrison:

  • Crawl space vapor barrier
  • Crawl space drainage system
  • Crawl space dehumidifier
  • Crawl space insulation
  • Crawl space support jacks
  • And more!

Schedule a free crawl space repair and encapsulation estimate to learn more. We proudly serve Harrison and areas nearby.

Quality basement waterproofing, crawl space repairs, & more since 1987

Connecticut Basement Systems is the largest basement waterproofing, foundation repair, crawl space encapsulation, and basement finishing company in Harrison - and for good reason. We are committed to improving the lives of our employees, customers, and the world through education and development. For over 30 years, we have built a solid reputation backed by honesty and expertise. So you can have absolute confidence in our services!

Contact us to schedule a free estimate today. We proudly serve Harrison and nearby areas.

Job Stories From Harrison, NY
Waterproofing Job in Harrison, NY

After noticing water marks in their basement, a homeowner and Harrison, NY reached out to Connecticut Basement Systems for assistance. After a pleasant and efficient conversation with the Appointment Center, Sales Consultant Mick Foster was sent over to give an estimate. He advised the purchase and installation of a WaterGuard, SumpPump Plus, Ice Guard, and LawnScape Outlet. These together drain water from the basement safely and channel it away from the house. The homeowner agreed these were needed and scheduled an installation date. Foreman Antonio Diaz and his crew installed the products, and the customer is absolutely thrilled with the results!

Waterproofing Job in Harrison, NY - Photo 1
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
Vapor barrier in crawl space
Project Location: Harrison, NY
Drainage issues
Project Location: Harrison, NY
Crawl spaces
Project Location: Harrison, NY
Water seeping into basement. Would like an estimate to repair.
Project Location: Harrison, NY
Ground water under basement floor is pushing up concrete floor
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