Sewer Line Repair & Hookups · Central Islip · ZIP 11722, 11752
Sewer Line Repair & Hookups in Central Islip, NYCarleton Avenue and District No. 3
All Island Plumbing, Heating & Cooling repairs house sewer lines and makes new sewer hookups in Central Islip (ZIPs 11722 and 11752), Town of Islip. Call (631) 644-2084. We answer calls 24/7 and are open Monday through Saturday (closed Sunday).
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- Local office · Merrick Rd, Massapequa
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Central Islip is partly sewered and partly on cesspools, and its downtown just got a new sewer. That makes sewer work here a mix of repairs on existing district connections and brand-new hookups. See also our Central Islip page and sewer line repair and hookups across Long Island.
Who's on a sewer
Suffolk County's sewer-district map, laid over the Census boundary, puts about 23% of the hamlet's area in Suffolk County Sewer District No. 3 (Southwest), mostly in its southern half. The district treats at the Bergen Point plant in Babylon, and a 24-inch district interceptor runs along Courthouse Drive, according to the county's 2021 engineering plan for downtown. In December 2024, the Town and State announced the completion of a new sewer line along Carleton Avenue, about 4,500 feet long, that connects downtown to the district.
What a new hookup involves
The 2021 Map and Plan by Cameron Engineering for Suffolk County describes the Carleton Avenue work: a 24-inch PVC gravity main down Carleton Avenue from Suffolk Avenue, with spurs and connection laterals installed to the property line of each parcel. From the property line in, it's the owner's job. The plan lists what that can involve:
- The house connection, a new line from the building to the lateral at the property line. We do this.
- Rerouting, because many buildings' sanitary pipes leave from the rear. The plan says those may have to be routed inside the building to the front, or through a rear alley to the side street.
- An ejector pump in some buildings, depending on the existing internal plumbing.
- Abandoning the old system. The plan puts abandonment of the on-site system on each owner. That's cesspool work, which we don't do, so plan on a separate contractor for that part.
Repairs on existing sewer connections
In the parts of Central Islip already in the district, house sewers range from 1950s and 1960s clay and cast iron to post-1980 PVC; 31% of homes went up after 1980, according to the Census Bureau's latest survey. Older lines fail from roots, rust and sags. If your main backs up again within weeks of clearing, or roots come back on the cable, we locate the bad section and repair or replace it to the street connection.
Permits
Central Islip is an unincorporated hamlet, so plumbing permits come from the Town of Islip Building Division. A new connection to the county sewer also goes through Suffolk County's Department of Public Works.
More
More for Central Islip and nearby
Sewer line repair in nearby towns
Questions
Sewer line repair in Central Islip: FAQ
My property is on the new Carleton Avenue sewer. Can you connect it?
Will I need a pump?
I'm not near Carleton Avenue. Is my house on a sewer?
Sources:Suffolk County GIS Sewer Districts layer overlaid on the Census 2020 boundary (Atlas, Nov. 4, 2026); Cameron Engineering for Suffolk County, Central Islip Sewer Extension Map and Plan (May 2021; SCSD No. 3, Bergen Point, Courthouse Drive interceptor, 24-inch Carleton Avenue main, laterals to property lines, rerouting, ejector pumps, owner responsibilities); Town of Islip press release, "Officials Announce Completion of Major Sewer Infrastructure" (Dec. 3, 2024); U.S. Census Bureau, ACS 2024 5-year (B25034); Town of Islip Building Division page.