Find a licensed plumber in Oyster Bay, NY

Who licenses plumbers in Oyster Bay

• Nassau County Consumer Affairs says plumbers who operate in the county are licensed by its cities, towns and villages.
• Nassau's home improvement license law does not apply to a plumber who must meet state or local competency standards, while acting only within the scope of that plumbing license.
• The Town requires every plumber who works in the Town to hold a Town of Oyster Bay license. Its Plumbers Examining Board is a chairman and four members, all master plumbers appointed by the Town Board.
• The Town of Oyster Bay licenses plumbers as well as electricians, and new applicants call (516) 624-6217 for the required paperwork.

State rules and the lookup steps: how to check a plumber's license.

What the Town of Oyster Bay requires

• Plumbing fixtures appear on the Town's list of work that generally needs a permit.
• The Town's Building Division Portal accepts plumbing fixture permits online when the work involves no structural changes.
• The Town's plumbing checklist says a permit for interior plumbing repair or replacement must include a Town-licensed plumber's completed, signed and notarized details on page two.

The Town of Oyster Bay Building Division handles permits ((516) 624-6200 ext. 1). Our Town of Oyster Bay permit guide covers how to apply, inspections and certificates.

Homes in Oyster Bay: what the Census shows

Across the Town of Oyster Bay, villages included, the median home was built in 1957, and 63% of homes were built before 1960, 10% before 1940. A home built before 1960 is now more than 65 years old, so ask what the supply and drain pipes are made of before work is priced. 86% of homes here are single-family detached houses, and 89% are owner-occupied.

What plumbing work 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 plumbing cost guide.

Before you hire in Oyster Bay

• Ask for the license number the work needs here (see who licenses plumbers above), and check it before you sign.
• Ask who files with the Town of Oyster Bay Building Division, and who books the inspections.
• Does the price include opening and closing walls or floors, and who patches them?
• For a water heater: what size and fuel, and how is it vented?