Plumber in Manhasset Hills, NYEmergency Plumbing, Drains, Sewer Lines & Water Heaters
All Island Plumbing, Heating & Cooling is a plumbing company at 5788 Merrick Rd, Suite 203, Massapequa, NY 11758, serving Manhasset Hills (ZIP 11040, 11042) in the Town of North Hempstead, Nassau County. 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
Nassau County & western Suffolk
Licensed & insured across Long Island
Answering calls 24/7 · Open Mon–Sat, closed Sunday
Local to Manhasset Hills
Based on Merrick Road, serving Manhasset Hills
Manhasset Hills is next to Herricks, North Hills, North New Hyde Park and Lake Success, about 30 minutes from our office without traffic (estimate). 34% of its homes were built before 1960, it is on a public sewer, and FEMA maps little or none of it in the high-risk flood zone.
What we fix
Plumbing services in Manhasset Hills
Plumbing only. Don't see your problem? Call and ask.
Split, burst or frozen pipes located and repaired.
Drain Cleaning
Kitchen, bath, laundry and main lines.
Sewer Line Repair & Hookups
Roots and breaks in the line from the house to the street sewer, and new connections where a sewer is available.
Backwater Valve Installation
For homes on a public sewer: a check valve on the house line that closes if the street sewer backs up, so sewage can't come in through basement drains.
Water Heater Repair & Installation
Tank-type, gas and electric.
Leak Detection & Repair
Hidden supply leaks, wet ceilings, unexplained high water bills.
Gas Line Installation & Repair
Oil-to-gas switches, ranges, dryers and gas water heaters.
Bathroom & Kitchen Plumbing
Fixtures and remodel plumbing.
Water Filtration
Whole-house and under-sink systems sized to your water report.
Septic Line Clearing
We clear the line from the house to an existing septic tank. No septic installs, no cesspool work.
Local know-how
Manhasset Hills homes & plumbing: what we see
Real numbers from public sources, and what they mean for your pipes.
34%
of homes built before 1960
Source: Census ACS 2024 5-yr, B25034
1963
median year homes were built
Source: Census ACS 2024 5-yr, B25035
83%
of homes heat with utility gas
Source: Census ACS 2024 5-yr, B25040
98%
single-family detached houses
Source: Census ACS 2024 5-yr, B25024
Plattsdale and the split-level era.
Wikipedia says the hamlet's historical name is Plattsdale, and most of it was built up as residential neighborhoods by the late 1950s. One of the last big tracts became Cherrywood Homes: 88 split-level houses on 24 acres, designed by A.H. Salkowitz. The old Long Island Motor Parkway ran along the northern edge; its right-of-way now carries a power line, and the Old Courthouse Road Bridge still crosses it. The CDP covers 0.6 square miles, all land, almost all of it zoned for single-family homes.
The Census Bureau's latest five-year survey counts about 1,200 homes, with a median year built of 1963. 28% went up in the 1950s, 1% before 1940, and 7% after 1980. 98% are single-family detached houses, and 92% are owner-occupied.
So a typical house here has drain and water lines around 63 years old unless they've been replaced. Slow drains in several fixtures, a gurgling floor drain or rusty water from one tap are signs to have the main line and supply piping checked.
Gas piping.
The ACS shows 83% of homes heat with utility gas, 6% with electricity and only 10% with fuel oil. New gas ranges, dryers and water heaters need properly sized gas piping, and a leak test after any change; we do the gas line work.
On the sewer.
Manhasset Hills isn't listed separately in Nassau County's health department sewer list; Wikipedia says all of Manhasset Hills is connected to sanitary sewers in the Nassau County sewage district. A backup that stops at your house is usually in your own line to the street; we clear it and repair or replace the line. If neighbors are backed up too, call the Nassau County Department of Public Works (516-571-6841).
Little mapped flood risk.
FEMA's current flood map puts none of Manhasset Hills in the high-risk flood zone.
Water: Garden City Park Water District.
EPA's service-area map puts about 88% of residents on the Garden City Park Water District, with about 12% on the Manhasset-Lakeville Water District; your bill is the final word. The main supplier's most recent 90th-percentile lead result was 2.6 ppb, under the 15 ppb action level; lead usually comes from a home's own pipes and fixtures, so results vary house to house. In EPA's UCMR 5 testing, the main supplier's highest single PFOA/PFOS result was 19 parts per trillion. EPA's 4 ppt limits apply as a running annual average starting in 2029, so one high sample is not a violation, but it's the kind of number a carbon filter is sized against. For a leak at the curb or in the street, call your water supplier. For anything on your side of the meter, call us.
Permits.
Manhasset Hills is an unincorporated hamlet, so plumbing permits go through the Town of North Hempstead Building Department.
Local reference points: Clinton G. Martin Park and the Cornell-Van Nostrand House, the Old Courthouse Road Bridge and Marcus Avenue.
Sources:U.S. Census Bureau, 2020 Census (PL 94-171) and ACS 2024 5-year (B25034, B25035, B25024, B25003, B25040) from the Census Bureau's 2024 ACS summary file; Wikipedia, "Manhasset Hills, New York" (Plattsdale, Cherrywood Homes, Long Island Motor Parkway, Old Courthouse Road Bridge, Cornell-Van Nostrand House, zoning, area, sewer and water utilities); Nassau County Department of Health, Public Sewer Collection Districts, Summary of Districts by Community; FEMA National Flood Hazard Layer, overlaid on the Census 2020 Manhasset Hills boundary by Atlas (Nov 1, 2026, batch e); U.S. EPA Community Water System Service Area Boundaries, UCMR 5 and lead 90th-percentile results via CityTapWater (supplier shares, estimate).
Why All Island
Why Manhasset Hills homeowners call us
Close byMerrick Road office in Massapequa, about 30 minutes away (free-flow estimate).
Licensed & insured across Long Island.
Questions
Manhasset Hills plumbing FAQ
Do you cover all of Manhasset Hills?
Yes, all of Manhasset Hills (ZIP 11040, 11042), plus the neighboring communities listed below.
Sewage came up through my basement floor drain. Who do I call?
If it's only your house, the blockage is usually in your line to the street: call us. If neighbors have it too, the public sewer may be backed up: call the Nassau County Department of Public Works (516-571-6841).
Who supplies my water?
EPA's service-area map puts about 88% of residents on the Garden City Park Water District, with about 12% on the Manhasset-Lakeville Water District. Your bill says which. For leaks at the curb or meter, call the supplier; inside the house, call us.
Can you handle the gas piping when I switch from oil to gas?
Yes, we install and repair gas lines for heating equipment and appliances.
When can I reach you in Manhasset Hills?
We answer calls 24/7. We're open Monday through Saturday and closed on Sunday. Call (631) 644-2084.
