Find a licensed water heater installer in Southampton, NY

Who licenses water heater installers in Southampton

• For the plumbing on a water heater replacement, the Suffolk licenses are Master Plumber and Restricted Plumber, both issued by Consumer Affairs.
• Suffolk's application for a restricted license offers LP Gas and Natural Gas categories within Restricted Plumbing.
• A home improvement license does not cover the plumbing on a Suffolk water heater replacement, because the county's home improvement law excludes the plumbing field.

State rules and the lookup steps: how to check a water heater installer's license.

What the Town of Southampton requires

• Southampton's plumbing application lists oil or gas tankless hot water supply as one of its fixtures and items.

The Town of Southampton Building and Zoning Department handles permits (631-287-5700). Our Town of Southampton permit guide covers how to apply, inspections and certificates.

Homes in Southampton: what the Census shows

Across the Town of Southampton, villages included, the median home was built in 1983, and 22% of homes were built before 1960, 10% before 1940. 82% of homes here are owner-occupied, and 89% are single-family detached houses.

What water heater replacement costs here

Labor is a large part of any price. Long Island plumbers, pipefitters and steamfitters earn a median $80,988 a year, from about $55,904 at entry level to $110,956 with experience. (New York State Department of Labor, wages updated to the first quarter of 2026.) Prices come from written estimates; more in the water heaters cost guide.

Before you hire in Southampton

• Ask for the license number the work needs here (see who licenses water heater installers above), and check it before you sign.
• Ask who files with the Town of Southampton Building and Zoning Department, and who books the inspections.
• What size and type fits the house, and how is it vented?
• Is the expansion tank, the relief valve and the drain pan included?