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 Guilford
Water Heater

Water Heater

Before After
Water Heater Water Heater

This before and after photoset is from a home in Guilford, CT. The before photo shows the water heater without a drainage system. If water were to come in contact it could cause damage. In the after picture you can see the installed drainage system around this water heater is both cosmetically appealing and functional at the same time. 

Drainage System

Drainage System

Before After
Drainage System Drainage System

These before and after photos are from a basement at a home in Guilford, CT.  In the before photo the basement is not fitted with a drainage system so the basement was at risk for potential flooding. In the after picture you can see from the wet cement that our crew very neatly installed the WaterGuard drainage system to prevent flooding in the future. 

Sump pump installed in Guilford, CT

Sump pump installed in Guilford, CT

Before After
Sump pump installed in Guilford, CT Sump pump installed in Guilford, CT

This Guilford, CT basement had an old, exposed sump pump system that was in danger of clogging which would result in a flooded basement. We installed a new TripleSafe Sump Pump System to replace it which includes an airtight lid, primary pump, secondary pump, and battery backup sump pump.

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

The Best Basement Waterproofing Contractor in Guilford, CT

I'm 80 years old and i was having to remove water all by myself but since you installed your system...
Happy Customers Surrounding Guilford, CT
Work Requests

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Reviews From Guilford
Testimonials From Guilford
Dan was polite and curteous. I also appreciated that he was on time!
Testimonial by Sarah S. from Guilford, CT
Dan was polite and knew exactly what he was doing.
Testimonial by Joseph S. from North Haven, CT
I was ecstatic with Justin and his performance!
Testimonial by Neil S. from Guilford, CT

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

Services we offer in Guilford, CT:

  • 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 Guilford, CT
CleanSpace Encapsulation in Guilford, CT

This Guilford crawlspace was dirty and damp which can create an unhealthy environment.  The dampness in the crawlspace can support mold and moisture damage. These were concerns for the homeowner who wanted to make sure his crawlspace was a healthy environment. He did his research and decided to give Connecticut Basement Systems a call and scheduled an appointment.  

Taz Petersen was the Sales Representative who arrived at the home the day of the appointment. He inspected the crawlspace and explained the different solutions the homeowner had. Once a plan was set, a production date was scheduled and the homeowner was ready to have his crawlspace transformed.  

On the day of production, Garfield Sanderson and his production team began the installation process. A WaterGuard System was first installed to ensure that water would be properly channeled outside of the home. Then, a CleanSpace encapsulation was installed on the floors and walls to prevent any moisture from seeping through. Lastly, a Sanidry Sedona dehumidifier was installed to ensure that the crawlspace will stay dry.

With a dry, clean crawlspace, the home instantly transformed into a healthier environment. The homeowner is extremely happy with his crawlspace thanks to Connecticut Basement Systems!

Dirty and damp crawlspace? Give us a call at 1-855-200-7133 for your FREE estimate! 

A finished basement in Guilford, CT needed waterproofing

Martha H of Guilford, CT noticed her finished basement had wet spots in the carpeting. She realized that the wet finishing materials in her basement caused a potential mold problem and new she would have to do something about the situation before it got worse. After searching the web she found Larry Janesky's Connecticut Basement Systems and decided to have them come in for a free estimate to solve the water problem. 

Shortly after giving them a call, an appointment was set for Mike Fuschetto to come evaluate the basement. Mike decided that having Al Guglielmoni install a WaterGuard drainage system and a TripleSafe Sump Pump system would be the best bet to get rid of any water. WaterGuard is a drainage channel that will lead any water coming into the basement to the TripleSafe pump system, where it will be then pumped out of the home a safe distance away.

Michael also proposed the SaniDry Basement Air system for Martha's basement. The SaniDry can dehumidify and filter the air at the same time. It's ENERGY STAR® rating makes it three times more efficient than common hardware store dehumidifiers.

Martha has been very happy and having no issues with water coming into her basement. It's now a dry, moisture free space that is safe to refinish and enjoy for years to come.

Work Requests From Guilford, CT
Project Location: Guilford, CT
Wet basement
Project Location: Guilford, CT
Interested in cleaning out crawl space and considering a ventilation system to improve airflow.
Project Location: Guilford, CT
Our basement floods during heavy rain at the spring thaw. Much of the issue has been solved with new gutters, but not entirely. We'd like to make the basement at least a pleasant space for eventual finishing.
Project Location: Guilford, CT
Interested in waterproofing and sealing concrete in basement. Thanks!
Project Location: Guilford, CT
Leak/water damage/ mold
Project Location: Guilford, CT
Looking to transform concrete unfinished basement into a finished space and change into a gym
Project Location: Guilford, CT
We have an unfinished basement. We'd like to convert it into a finished space with a gym area, etc.
Project Location: Guilford, CT
I suspect that my basement is below the water table. Not sure, but no question that after a big rain or a wet period in general that water begins to collect on the floor and runs out of my garage. I would like to either prevent the water from entering or find a way to remove it(pump type system) once it is in there. Thanks
Project Location: Guilford, CT
Damp/wet spots on rug in basement.
Project Location: Guilford, CT
Water seeping in in a part of the basement when there is a lot of rain.
Project Location: Guilford, CT
House has a slightly uneven, settled foundation close to a marshy area. Build approximately 20 years ago. Foundation wall cracks were chiseled-out and sealed after house built and still look great, and basement does not leak. However, the unevenness is obvious on at least half of the first floor. Would like to know if you guys have a solution. Thanks
Project Location: Guilford, CT
Basement room needs redoing, with small water issue at the same time
Project Location: Guilford, CT
Would like to address the crawl space under rear addition to house
Project Location: Guilford, CT
A few miscellaneous issues. Minor leakage (seeping) of foundation walls in unfinished basement during heavy rains. Some minor concrete cracks and a larger loss of material in concrete garage floor. Missing concrete block in hot water boiler chimney. Most days/time are OK for inspection or repair.
Project Location: Guilford, CT
Water in basement
Project Location: Guilford, CT
Cracked cinder blocks new walk out basement
Project Location: Guilford, CT
Basement water
Project Location: Guilford, CT
Basement with exposed ledge and block foundation gets water during heavy rains.
Project Location: Guilford, CT
House was built in 1949 with a dirt floor crawl space. The space has flooded twice during hurricanes. Looking for a moisture control solution.
Project Location: Guilford, CT
Looking to get mold testing done in my basement.