Plumber in Mineola, NYEmergency Plumbing, Drains, Water Lines & Water Heaters

County seat on the Hempstead Plains.

Wikipedia says the settlement once called Hempstead Branch took the name Mineola in 1858, from an Algonquin chief's name meaning "pleasant village." Voters picked it as the seat of the new Nassau County in 1898; Theodore Roosevelt laid the courthouse cornerstone in 1900, and the village incorporated in 1906. The Long Island Rail Road arrived in 1839, and NYU Langone Hospital–Long Island began here as Nassau Hospital in 1896. The village covers 1.9 square miles, has a long-established Portuguese community, and since the 2010s has added large transit-oriented apartment buildings near the Mineola LIRR station.

The Census Bureau's latest five-year survey counts about 9,100 homes, with a median year built of 1954. 25% are older than 1940, 14% went up in the 1940s and 28% in the 1950s, so 67% predate 1960; 13% were built after 2000. Just 55% are single-family detached houses, 7% are two-family, and 31% are in buildings with five or more units (25% in buildings of 20 or more). 68% are owner-occupied.

In the older houses, the main drain is often original cast iron or clay, and the water line may still be galvanized steel or lead (see below). In two-family houses, two households share one main drain, so a slow main shows up fast. Newer apartment buildings bring shared risers, stacks and big water heaters.

Heating fuel.

The ACS shows 70% of Mineola homes heat with utility gas (National Grid supplies gas in the village), 16% with fuel oil and 11% with electricity. 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 village sewer.

Nassau County's health department lists Mineola's sewers as run by the Village of Mineola, operating as a collection district only: the village's roughly 70 miles of sewer mains flow into the county system, which treats the sewage at county plants. Village code requires a written permit to connect to or alter the public sewer. 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 village Water & Sewer Department at 516-746-0751. Mineola is outside FEMA's high-risk flood zones; a backwater valve still guards a finished basement against street-sewer backups.

Water: Village of Mineola Water Department.

The village owns its water system. Its 2025 report (May 2026) says it pumps from five wells in the Magothy aquifer for about 21,300 residents, adds sodium hydroxide to keep the pH between 7.5 and 8.5 and reduce corrosion, and runs air-stripping towers for volatile organic compounds at three wells. A new carbon (GAC) filter for PFOA and PFOS came online at Well 1 in 2025; treatment for 1,4-dioxane, PFOA and PFOS at Well 4 is due to be finished in 2026, and carbon treatment at Well 6 is set to start construction. In 2025 PFOA and PFOS each reached 5.15 parts per trillion against New York's limit of 10, 1,4-dioxane reached 0.41 micrograms per liter against a 1.0 limit, and nitrate reached 5.1 mg/L against 10. Total hardness ran 22.4 to 50.4 mg/L, so the water is soft. The report lists no violations.

Lead service lines.

The village's service line inventory, filed with the state in October 2025, counts 552 lead lines and 79 galvanized lines needing replacement out of 5,565, and 2,948 lines still unknown; 474 of the lead lines are on the customer side. The 2025 report says the village is still identifying lead lines and "beginning to plan for replacements." For a one- or two-family house, village code makes the village responsible for the main and the service pipe up to and including the curb box, and the owner responsible from the curb box to the house. 2025 tap tests came in well under the lead action level (90th percentile 2.2 against 15). Until you know your line, a filter certified for lead (NSF/ANSI 53) is a sensible stopgap. We install certified filters.

Permits and licensing: Village of Mineola.

Mineola is an incorporated village, so plumbing goes through the village Building Department at 155 Washington Avenue, not the Town of North Hempstead. Village code says no one may do plumbing work in the village without a certificate of competency or registration from the village Examining Board of Plumbers, or a license from a municipality that has a reciprocal agreement with the village, and licensed plumbers must register every January. Permits to install, replace or repair a water service go only to a master plumber licensed and registered with the village, the service line from the main to the house must be Type K copper, and plumbers working on the village water system must file a $1,000 bond. The village has its own plumbing permit, sewer connection, and water service and backflow device applications.