Find a licensed window and door installer in Southampton, NY

Who licenses window and door installers in Southampton

• New windows and doors are an improvement to residential property, and Suffolk's home improvement law requires a county license for that work unless the business is exempt.
• Storms and screens are among the areas of work Suffolk Consumer Affairs lists under home improvement.
• Southampton requires its own Home Improvement Contractor's License for home improvement work, and its licensing covers every village except the Village of Westhampton Dunes. A builder of a new home needs no town license for now, but the builder's subcontractors must be licensed.
• A Southampton home improvement license is valid for one year. A new application costs $250.00 by cash or check or $257.50 by credit, and an on-time renewal costs $175.00, or $180.25 by credit.

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

What the Town of Southampton requires

• Southampton does not count every cracked window as a property maintenance code violation, its code enforcement page says.

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 window and door replacement costs here

Labor is a large part of any price. Long Island glaziers earn a median $63,302 a year, from about $51,418 at entry level to $84,282 with experience. Carpenters earn a median $78,841 a year, from about $54,732 at entry level to $97,440 with experience. (New York State Department of Labor, wages updated to the first quarter of 2026.) Prices come from written estimates; more in the windows and doors cost guide.

Before you hire in Southampton

• Ask for the license number the work needs here (see who licenses window and door 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.
• Is this a full-frame replacement or an insert into the old frame?
• How will the openings be flashed and sealed against water?