516-747-7727

    Waterproofing Specialists Serving Queens, Nassau
    and Western Suffolk Counties Since 1955

    Habla Espanol

French Drain

What is a French Drain System, and How does it Work?

A French drain system, otherwise referred to as a sub-floor drainage system or pressure relief system, is a perforated pipe installed below the basement floor slab. The pipe is wrapped in a filter screen and set in a drainage envelope, creating a void that’s less dense than the surrounding soil.

The Importance of a French Drain

A French drain promotes water flow into the pipe. The water moves to a discharge location, which is an automatic submersible sump pump or daylight depending on topography.

A basement is in the ground. Depending on its location and the consistency of the soils, water may be found in the ground where the basement is situated. When eye water rises to an elevation where it comes in contact with the basement floor and foundation walls, the basement will become submersed in water.

If this occurs, hydrostatic pressure will build around the basement. Hydrostatic pressure will then force the water into the basement, creating a flooding, wet condition.

French Drain

Removing Water

The purpose of a French drain system is to remove the water that is under the basement floor. It dewaters the soils under and around the basement, so it does not become submersed in water.

Removing this fluid will reduce the potential for hydrostatic pressure to build against the basement floors and foundation walls. This reduces the potential for water to enter into the basement and the possibility of a flooding condition. Afterwards, the result is a dry basement to be used for living and storage

Learn More About Waterproofing Crawl Spaces

Facebooktwittergoogle_plusredditpinterestlinkedinmailFacebooktwittergoogle_plusredditpinterestlinkedinmail
certified google angie

CONTACT US


Address :
168 Broadway,
Garden City, NY
11040
Phone : (516) 747-7727

TOWNS WE SERVE

Garden City
New Hyde Park
Great Neck
Flushing
Bayside
Plainview
Manhasset
Floral Park
Rockville Centre
Huntington
Mineola
Merrick
Syosset
Valley Stream
Port Washington
Dix Hills
Massapequa
Roslyn
Woodbury
Jamaica
Whitestone
East Meadow
Forest Hills
West Hempstead
Woodmere
Oceanside
Douglaston
Baldwin
Bellmore
Fresh Meadows
Hicksville
Long Beach
Melville
Westbury
Wantagh
Jericho
Hempstead
Bellerose
Freeport
Franklin Square
Lawrence
New York City
Lynbrook
Williston Park
Farmingdale
Old Westbury
Little Neck
Brooklyn
Glen Cove
Elmont
Jamaica Estates
Bethpage
Queens Village
Smithtown
Middle Village
Garden City Park
Seaford
Albertson
Roslyn Heights
Malverne
Commack
Hewlett
Glen Head
Massapequa Park
Lake Success
North Woodmere
Searingtown
Cedarhurst
East Rockaway
Northport
Oyster Bay
Maspeth
Astoria
Howard Beach
Levittown
Kew Gardens
Huntington Station
Old Bethpage
Atlantic Beach
Bronx
Hollis Hills
West Islip
East Northport
Elmhurst
Brookville
East Williston
Locust Valley
Muttontown
Lindenhurst
Kings Point
Manhasset Hills
East Hills
Holliswood
College Point
Deer Park
Hollis
Bayshore
Rego Park
Babylon
Rosedale
Uniondale
Kings Park
Island Park
Sea Cliff
North Massapequa
Woodside
Sands Point
Far Rockaway
Hauppauge
Jackson Heights
Ozone Park
Garden City South
Old Brookville
Springfield Gardens
Cold Spring Harbor
Amityville
Plandome
West Babylon
North Babylon
East Norwich
Richmond Hill
Glendale
Roslyn Estates
Bayville
Laurelton
Stewart Manor
Long Island City
Upper Brookville
Briarwood
Greenlawn
Laurel Hollow
South Ozone Park
Carle Place
Lido Beach
Cambria Heights
Corona
Islip
Oyster Bay Cove
Roslyn Harbor
North Hills
Woodhaven
Nesconset
Lloyd Harbor
Munsey Park
Roosevelt
South Hempstead
East Islip
St. James
Brentwood
Brightwaters
Centerport
Glen Oaks
Point Lookout
Fort Salonga
Greenvale
Ronkonkoma
Staten Island
Hewlett Harbor
Central Islip
Lattingtown
Ridgewood
Flower Hill
Glenwood Landing
Stonybrook
Sunnyside
East Setauket
Forest Hills Gardens
Great Neck Estates
Setauket
Patchogue
South Huntington
Copiague
Holbrook
Huntington Bay
Centre Island
Sayville
Lake Ronkonkoma
Mill Neck
North Valley Stream
Oakdale
Woodsburgh
Oakland Gardens
Wheatley Heights
Inwood
Kensington
Port Jefferson
Plainedge
Hamilton Park
Plandome Manor
Belle Harbor
Herricks
Wading River
Wyandanch
Lloyd Neck
Queens
Bohemia
Centereach
Bridgehampton
East Patchogue
Hewlett Bay Park
South Farmingdale