All Island PlumbingMassapequa, NY · Nassau & Suffolk

Serving Glenwood Landing · ZIP 11545, 11547

Plumber in Glenwood Landing, NYEmergency Plumbing, Drains, Gas Lines & Water Heaters

All Island Plumbing, Heating & Cooling is a plumbing company at 5788 Merrick Rd, Suite 203, Massapequa, NY 11758, serving Glenwood Landing (ZIP 11545, 11547) in the Town of Oyster Bay (a small corner is 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).

Call now(631) 644-2084 Book online Answering calls 24/7 · Open Mon–Sat, closed Sunday

Smell gas? Leave the house first, then call the gas utility's emergency line or 911.

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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 Glenwood Landing

Based on Merrick Road, serving Glenwood Landing

Glenwood Landing is in the greater Glen Cove area, next to Sea Cliff and Glen Head, about 31 minutes from our office without traffic (estimate). 58% of its homes were built before 1960, most homes are on cesspools or septic systems, and about 4% of it is in FEMA's high-risk flood zone.

What we fix

Plumbing services in Glenwood Landing

Plumbing only. Don't see your problem? Call and ask.

Emergency Plumber

Burst pipes, active leaks, overflowing fixtures.

Burst Pipe Repair

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 cesspool or septic tank. We don't do cesspool work.

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. We don't install septic systems, and we don't do cesspool work.

Local know-how

Glenwood Landing homes & plumbing: what we see

Real numbers from public sources, and what they mean for your pipes.

58%
of homes built before 1960
Source: Census ACS 2024 5-yr, B25034
1957
median year homes were built
Source: Census ACS 2024 5-yr, B25035
87%
of homes heat with utility gas
Source: Census ACS 2024 5-yr, B25040
~4%
in FEMA's high-risk flood zone
Source: FEMA NFHL, Atlas overlay (Nov 2026)

A harbor hamlet in the greater Glen Cove area.

Wikipedia says Glenwood Landing is mostly in the Town of Oyster Bay, with a small southwest corner in the Town of North Hempstead. It's served by the North Shore Central School District and sits entirely inside the Gold Coast Library District. The Census counted about 1,420 homes in 2020. The CDP covers 1.0 square mile, all land.

The Census Bureau's latest five-year survey counts about 1,600 homes, with a median year built of 1957. 28% went up in the 1950s, 22% before 1940, and 16% after 1980. 89% are single-family detached houses, 7% are two-family, and 85% are owner-occupied.

So a typical house here has drain and water lines around 69 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 87% of homes heat with utility gas, 2% with electricity and only 8% 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.

Cesspools and septic, mostly.

Nassau County's health department list of sewer collection districts shows Glenwood Landing as not publicly sewered, so expect a cesspool or septic system. We clear the line from the house, but a full or failing cesspool is a job for a cesspool or septic contractor; we don't do cesspool work, and we don't install septic systems.

Flood risk.

Laying FEMA's current flood map over the Census boundary, about 4% of Glenwood Landing is in the high-risk (1% annual chance) flood zone (2.1% in zone AE, 1.8% in zone VE; shares of the Census area, water included). If your water heater or gas appliances ever sat in flood water, have them checked before relighting.

Water: Liberty Utilities New York's Sea Cliff system.

EPA's service-area map puts about 74% of residents on Liberty Utilities New York's Sea Cliff system, with about 26% on the Jericho Water District; your bill is the final word. The main supplier's most recent 90th-percentile lead result was 0 ppb (none measured), 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 reported no PFOA or PFOS. 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.

Glenwood Landing is an unincorporated hamlet, so plumbing permits go through the Town of Oyster Bay Department of Planning and Development.

Local reference points: Harry Tappen Beach, Marina and Pool and the Gold Coast Public Library district.

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, "Glenwood Landing, New York" (town split, school and library districts, 2020 housing count, area); Nassau County Department of Health, Public Sewer Collection Districts, Summary of Districts by Community; FEMA National Flood Hazard Layer, overlaid on the Census 2020 Glenwood Landing 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 Glenwood Landing homeowners call us

  • Close byMerrick Road office in Massapequa, about 31 minutes away (free-flow estimate).
  • Licensed & insured across Long Island.

Questions

Glenwood Landing plumbing FAQ

Do you cover all of Glenwood Landing?
Yes, all of Glenwood Landing (ZIP 11545, 11547), plus the neighboring communities listed below.
Is Glenwood Landing on a sewer or a cesspool?
Most homes here use a cesspool or septic system; a sewer district charge on your tax bill means you're connected. We clear the house drain line, but cesspool pumping or replacement is for a cesspool or septic contractor.
Who supplies my water?
EPA's service-area map puts about 74% of residents on Liberty Utilities New York's Sea Cliff system, with about 26% on the Jericho 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 Glenwood Landing?
We answer calls 24/7. We're open Monday through Saturday and closed on Sunday. Call (631) 644-2084.