We are the New York  Experts!

Basement Waterproofing, Crawl Space Repair & Spray Foam in Huntington Station, Massapequa & all of Long Island

Why Choose Us?

  • Fast, Professional Installations
  • A Written, Transferable Warranty
  • More Than 30 Patented Products
  • Certified, Insured Installers
  • Competent, Friendly Service
  • Free, Written Estimates

Founded in 2000, Complete Basement Systems is a locally owned and operated business that is licensed, insured, and certified to do business in all of Long Island.

We are the go-to contractor for basement waterproofing, basement repair, spray foam joist insulation -- and we work wonders with wet crawl spaces, too! Regardless of what you'd like done with your basement, we can help.

Professional Basement Waterproofing

We stop water from entering your basement through walls, floors, doors or windows, getting rid of the damp and musty sells caused by mold growth. We will install hidden interior drains and a sump pump to your basement. The drains are designed to avoid clogs and the sump pumps have back up and batter powered back pumps to provide fail-safe water removal.

As part of the Basement Systems International network of basement contractors which provides us access to patented products unavailable anywhere else. Our basement waterproofing system has proven itself across America for over 20 years.

Crawl Space Repair

Moisture is the key ingredient to making the crawl space a perfect place for mold to thrive. Mold spores can then easily circulate through floors and walls to enter living spaces above - where they add to the misery of being and allergy or asthma sufferer. In addition, moisture, over time, can cause the beams, posts, and joists that support your home to rot. Don't wait until the cost to make structural repairs becomes too great. Call us now for a free inspection and estimate.

Spray Foam Insulation

Many homes are built with improper insulation, leaving cracks and holes throughout the house that allow both air flow and heat loss making your home uncomfortable and increasing your energy bills at the same time. Our highly trained technicians install closed-cell polyurethane spray foam sealing these gaps in your home preventing the unwanted air flow while insulating your home.

Ready to begin your Project?

Complete Basement Systems of NY provides crawl space repair, spray foam insulation, and basement waterproofing in Huntington Station, Bay shore, Hempstead, Velley Stream, Massapequa, Brentwood and all of Long Island.

Looking for a price? Get a no cost, no obligation free estimate.

Serving New York
Including All of Long Island
Our New York Service Area
Cities in Nassau County, NY
Albertson
Atlantic Beach
Baldwin
Bayville
Bellerose Village
Bellmore
Bethpage
Carle Place
Cedarhurst
East Meadow
East Norwich
East Rockaway
Elmont
Farmingdale
Floral Park
Franklin Square
Freeport
Garden City
Glen Cove
Glen Head
Glenwood Landing
Great Neck
Greenvale
Hempstead
Hewlett
Hicksville
Inwood
Island Park
Jericho
Lawrence
Levittown
Locust Valley
Long Beach
Lynbrook
Malverne
Manhasset
Massapequa
Massapequa Park
Merrick
Mill Neck
Mineola
New Hyde Park
Oceanside
Old Bethpage
Old Westbury
Oyster Bay
Plainview
Port Washington
Rockville Centre
Roosevelt
Roslyn
Roslyn Heights
Sea Cliff
Seaford
South Floral Park
Syosset
Uniondale
Valley Stream
Wantagh
West Hempstead
Westbury
Williston Park
Woodbury
Woodmere

Cities in Suffolk County, NY
Amagansett
Amityville
Aquebogue
Babylon
Bay Shore
Bayport
Bellport
Blue Point
Bohemia
Brentwood
Bridgehampton
Brightwaters
Brookhaven
Calverton
Center Moriches
Centereach
Centerport
Central Islip
Cold Spring Harbor
Commack
Copiague
Coram
Cutchogue
Deer Park
East Hampton
East Islip
East Marion
East Moriches
East Northport
East Quogue
East Setauket
Eastport
Farmingville
Great River
Greenlawn
Greenport
Hampton Bays
Hauppauge
Holbrook
Holtsville
Huntington
Huntington Station
Islandia
Islip
Islip Terrace
Jamesport
Kings Park
Lake Grove
Laurel
Lindenhurst
Manorville
Mastic
Mastic Beach
Mattituck
Medford
Melville
Middle Island
Miller Place
Montauk
Moriches
Mount Sinai
Nesconset
New Suffolk
North Babylon
Northport
Oakdale
Ocean Beach
Orient
Patchogue
Peconic
Port Jefferson
Port Jefferson Station
Quogue
Remsenburg
Ridge
Riverhead
Rocky Point
Ronkonkoma
Sag Harbor
Sagaponack
Saint James
Sayville
Selden
Shelter Island
Shelter Island Heights
Shirley
Shoreham
Smithtown
Sound Beach
South Jamesport
Southampton
Southold
Speonk
Stony Brook
Upton
Wading River
Wainscott
Water Mill
West Babylon
West Islip
West Sayville
Westhampton
Westhampton Beach
Wyandanch
Yaphank

Please call us at: 1-516-740-2702
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