"Brooklyn," reversed.
Wikipedia's history says the area was once called Rechquaakie, Parson's Corners, Bloomfield and then Pearsall's Corners, after a general store that was a stagecoach stop at the "Five Corners" where Hempstead Avenue, Merrick Road and Broadway meet. It became Lynbrook in 1894, the syllables of "Brooklyn" swapped in tribute to where many early residents came from, and incorporated as a village in 1911. The village covers 2.0 square miles between Malverne, Valley Stream, Hewlett, East Rockaway and Rockville Centre. Three houses (on Rocklyn Avenue, Ocean Avenue and Grove Street), Rockville Cemetery and the Lynbrook Public Library are on the National Register of Historic Places.
The Census Bureau's latest five-year survey counts about 7,500 homes, with a median year built of 1945. 45% are older than 1940, 11% went up in the 1940s and 16% in the 1950s, so 72% predate 1960; only 6% were built after 1980. 56% are single-family detached, 23% are two-family houses, and 19% are in buildings with five or more units. 76% are owner-occupied.
That's a lot of plumbing approaching or past 85 years old: cast-iron stacks, clay or cast-iron mains, and galvanized supply lines that narrow with rust. In a two-family house, two households share one main drain to the street, so a slow main shows up fast. Low pressure upstairs, rusty water from one tap, or several slow drains at once are the signs to have it checked.
Heating fuel.
The ACS shows 71% of Lynbrook homes heat with utility gas and 21% with fuel oil. Switching from oil to gas means new gas piping to the equipment, and often to the water heater, range and dryer. We do the gas line work. We don't sell or deliver oil.
On the county sewer.
Nassau County's health department lists Lynbrook's sewers under the Nassau County Department of Public Works (516-571-6841). The village still issues its own permits to connect or disconnect a sewer, and village code treats a new house sewer and its connection to the public sewer as plumbing work needing a permit issued to a licensed plumber. A backup that stops at your house is usually in your own line to the street; we clear it. If neighbors are backed up too, call the county. FEMA's current maps put none of the village in the high-risk flood zone (about 3% is in the moderate, 0.2% annual chance zone), but in a 1920s house with a finished basement, a backwater (sewer check) valve on the house line is worth considering to keep out a street-sewer backup. We install them.
Water: Liberty Utilities, Lynbrook system.
Lynbrook is served by Liberty Utilities New York's Lynbrook Operations District, which also serves much of southwest Nassau. Its 2026 report on 2025 water lists 20 well treatment sites across a 43-square-mile area: caustic soda or lime raises the pH to cut corrosion of household plumbing, iron is filtered out at 13 sites, and sodium silicate holds the rest in solution. PFOA was detected from non-detect up to 11.5 parts per trillion at the raw wells (New York's limit is 10, judged on a running average; the report lists no violation), and total hardness ran 4.2 to 58.6 mg/L, which is soft. The report discloses two 2025 violations for silica levels outside the required corrosion-control range, which it says were not an emergency. In 2025 lead tap tests, 2 of 104 homes were over the action level, with a 90th percentile of 3 parts per billion. Across the whole district, Liberty's state-filed inventory counts 3,700 lead service lines and 15,239 of unknown material. If your house predates 1940, it's worth knowing what your service line is. Liberty: 1-877-426-6999.
Permits and licensing: Village of Lynbrook.
Lynbrook is an incorporated village, so plumbing goes through the village Building Department at One Columbus Drive, not the Town of Hempstead. The department says all plumbers who work in the village must be licensed and registered with the Village of Lynbrook. Village code requires master plumbers to register each year and lets only village-licensed plumbers install, alter or repair plumbing; plumbers licensed by the Towns of Hempstead, North Hempstead or Oyster Bay, or another municipality in their 1969 reciprocal agreement, can get the village license without a new exam. The village application asks for a $2,000 bond for sewer work, insurance on file, and a letter of good standing from the plumber's home town.
