Service Area

Service Area

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Products & Services
Basement Repair Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Basement Leak Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Basement To Beautiful Pre-finishing Wall Insulation Panels
Foamax Wall Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
Sanidry Basement Dehumidifiers
Basement Egress Windows
Basement Insulation
Basement Crack Repair
Drain Tile System Installation
Perimeter Drainage Systems

Crawl Space Repair Services & Products

CleanSpace Encapsulation Vapor Barriers And Liners
Turtl Access Hatch
EverLast Crawl Space Doors
Sanidry Csb Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl Space Liners
Crawl-o-Sphere Crawl Space Fan
WallCap Block Wall Sealer
SmartVent Flood Vents
Crawl Space Jacks
Crawl Space Vapor Barriers

Foundation Repair Services & Products

Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair
Structural Repairs
Helical Deck Piers
Geo-lock Wall Anchors
Geo-lock Helical Anchors
PowerBrace Bowed Wall Repair
CarbonArmor Fiber Wall Repair
SmartJack Crawl Space Support
Slab Pier Repair
Basement Repair
Foundation Underpinning
Foundation Crack Repair
EZ Post Deck Repair
Shotcrete Wall Restoration
Foundation Waterproofing
Seawall Repair
Sinkhole Repair
Concrete Repair Services & Products
Cracked Concrete Repair
Concrete Lifting & Leveling
NexusPro® Concrete Sealant
SealantPro® Concrete Sealant
DecoShield® Concrete Sealer

Aspen Air Purifier

Before and After Pictures from Nassau
Crawl Space Encapsulation in Nassau, NY

Crawl Space Encapsulation in Nassau, NY

Before After
Crawl Space Encapsulation in Nassau, NY Crawl Space Encapsulation in Nassau, NY

Adirondack Basement Systems recently had the opportunity to assist The Nassau Free Library in Nassau, NY.  The crawl space below the library needed a vapor barrier and some much-needed support to stop the floors from sagging.

 Bill Seabridge is one of our structural System Design Specialists, once he was assigned this inspection he was right out there to propose a solution for this amazing facility!  Bill proposed SmartJacks to replace the old style jacks they were using to support the structure.  He also proposed CleanSpace crawl space encapsulation system.

 The library had a dirt crawl space under it, this damp environment is very unhealthy and destructive.  The CleanSpace encapsulation system completely isolated the library from the earth, this dramatically reduced the humidity level in the air which, when combined with sealing outside air and dehumidification, eliminated mold growth and rot from their crawl space, this has made the entire library a healthier place.

Company Awards
2013 BBB Torch Award For Marketplace Ethics
What are the "BBB Torch Awards?" The mission of your Better Business Bureau is to promote... [Read more]
2010 Torch Award for Marketplace Ethics
What are the "BBB Torch Awards?" The mission of your Better Business Bureau is to promote... [Read more]
2022 New York State Senate Empire Award
The New York State Senate Empire Award is given to those New Yorkers who have contributed significantly to their communities... [Read more]
More Awards

Nassau, NY's Proven Basement Waterproofing, Foundation & Crawl Space Repair Contractor

"Chris and crew were VERY professional and worked in a timely manner, and were always on time!" "Our Sales presentation...
Happy Customers Surrounding Nassau, NY
Work Requests

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Reviews From Nassau
Testimonials From Nassau
"Very Professional! Worked in a timely manner. On time!"
Testimonial by Sam W. from Nassau, NY

Basement & Crawl Space Waterproofing Services in Nassau

At Adirondack Basement Systems 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 trusted Basement Systems and Foundation Supportworks dealer in Nassau, NY and we want to help you and your home.

We understand the frustration that comes with getting water in your basement and we also understand the long-term consequences that come along with it. Adirondack Basement Systems has proven solutions that are highly successful when it comes to dealing with basement waterproofing issues of all varieties. Our professional crews are experts when it comes to basement waterproofing due to their experience as well as the dependable & exclusive products that we use. Don't let any company perform basement waterproofing in your home, trust the experts at Adirondack Basement Systems to get your basement waterproofing done right the first time!

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Sump pump installation, repair, and replacement.
  • Spray foam insulation.
  • Basement windows and egress windows.
  • Crawl space sealing with CleanSpace vapor barrier.
  • Crawl space and basement dehumidifiers.
  • 25-year warranty on crawl space encapsulation systems.
  • Aspen air purifier, removing over 99.97% of particles from the air.
  • Financing Available
  • FREE written estimates and inspections, and fast installation

Dependable Foundation Repair 

If your home is facing structural and foundation problems Adirondack Basement Systems has the solutions you're looking for. From wall anchors and push pier underpinning to Slab Piers and Crawl Space Jack Posts we have an arsenal of foundation repair products that will ensure the. We inspect your Nassau home, identify the problem and provide warranted products and work.  We offer a 25-year warranty against manufacturing defects on foundation products. 

Foundation Solutions for:
  • Bowing Walls
  • Uneven Floors
  • Wall Cracks
  • Settling Foundation
  • Doors that Won't Close         

Long-Lasting Concrete Repairs in Nassau

Have you noticed cracks in your driveway or uneven porch steps? Not only is damaged concrete an eyesore, but it can also become a tripping hazard if left unrepaired. Luckily, Adirondack Basement Systems provides durable solutions for your cracked or uneven concrete. We offer NexusPro®, SealantPro®, and PolyLevel®, three top-of-the-line concrete leveling and repair systems that will leave your concrete pristine.

Boost the curb appeal and value of your Nassau home or business with expert concrete repair by Adirondack Basement Systems. Our trusted concrete contractors will seamlessly complete your concrete repairs!

Schedule a free home repair estimate today!

When it comes to maintaining the safety, structural integrity, and health of your home, Adirondack Basement Systems is your best option! We offer industry-leading solutions for wet basements, bowing walls, uneven floors, cracked concrete, and so much more. We are your trusted home repair contractor with decades of experience.

For a FREE no-obligation basement waterproofing, foundation repair, or crawl space repair estimate in Nassau, NY call or click today!

Work Requests From Nassau, NY
Project Location: Nassau, NY
Water in basement
Project Location: Nassau, NY
Crawl space inspection.
Project Location: Nassau, NY
Project Location: Nassau, NY
There are three vertical structural cracks in the basement wall of the house, and there is a beam splice that is missing a support in the basement. At least one of the cracks is slightly displaced and about 1/4 inch near the top. I would like a quote for pressure injecting the cracks, or a recommendation/quote on what the appropriate fix is, and a quote for installing a beam support if you all offer that service. I'm looking to receive a quote within the next week. Thank you!
Project Location: Nassau, NY
I am in the process of purchasing a home. Some foundational issues were addressed during the structual inspection. I would like to get an estimate of what should be done to resolve these issues prior to going forward with purchasing the home.
Project Location: Nassau, NY
Waterproof Basement and Foundation
Project Location: Nassau, NY
I would like to get an estimate for crawl space repair and foundation repair. Thank you.
Project Location: Nassau, NY
Crack on the basement wall support beam needed in the basement
Project Location: Nassau, NY
Sagging floor, having an easier accessible crawl space
Project Location: Nassau, NY
Old Foundation walls are falling in, looking for estimate and price of what it would cost to replace
Project Location: Nassau, NY
House was built in 1940, basement walls need to be parged, holes around heating vents need to be closed off, install french drain and new floor with fiber reinforced concrete.
Project Location: Nassau, NY
I have a rental property that is currently vacant that i would like to discuss and possibly address the Wet Basement Issue. High moisture rate and tends to grow mold quickly on the walls -
Project Location: Nassau, NY
Outside, wood deck overhanging lake. Piers/supports rotted and moved due to ice. Needs to be re supported.
Project Location: Nassau, NY
I would like to correct or mitigate a small water leak on the basement floor coming from an unknown location. Additionally, I would like to apply a suitable basement floor covering.
Project Location: Nassau, NY
I have a crawl space under a 12 x14 addition to the original house that had fiberglass insulation that is falling down.
Project Location: Nassau, NY
Wet basement and floods