Water Heater Repair & Installation in Hempstead Village, NYHouses, Two-Families and Buildings

The Census Bureau's latest five-year survey shows 72% of village homes heating with utility gas, 14% with fuel oil and 10% with electricity, so most water heaters here are gas-fired. The same survey counts 44% of homes in buildings with five or more units and only 47% owner-occupied. In two-families and small apartment buildings, one heater may serve several units, or each unit may have its own; either way, the flue, gas line and relief-valve piping have to be right for the space they're in.

The village pumps its own water from nine wells, 365 to 535 feet deep in the Magothy aquifer, according to its 2025 Annual Water Supply Report. The raw water is acidic and some wells run high in iron. The village adds caustic soda for corrosion control and phosphates to keep iron from staining fixtures, and uses green-sand filters for iron at two wells. The report shows total hardness of 26.2 to 32.0 mg/L, which is soft, so heavy scale isn't the usual problem here. Iron and sediment settling in the bottom of the tank are. Rumbling while the heater runs, or rusty water only from the hot side, are the signs.

National Grid is the gas utility on Long Island. For a new gas line from the street or an oil-to-gas conversion, its Natural Gas Conversions line is 1-877-696-4743, weekdays. Inside the house, from the meter to the water heater, the piping is ours. If you ever smell gas, go outside and call National Grid at 1-800-490-0045 or 911.