Find a licensed insulation contractor in Southampton, NY

Who licenses insulation contractors in Southampton

• Suffolk Consumer Affairs counts insulation as home improvement work, and contractors working without a license there are subject to arrest and prosecution.
• Home Energy Audit Certificates are a separate license type issued through Suffolk Consumer Affairs.
• 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 an insulation contractor's license.

What the Town of Southampton requires

• Southampton's accessory structures checklist calls for a Residential Energy System (RES) form whenever finished space is proposed.

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 insulation work costs here

Labor is a large part of any price. Long Island insulation workers, floor, ceiling and wall earn a median $63,862 a year, from about $51,649 at entry level to $91,054 with experience. (New York State Department of Labor, wages updated to the first quarter of 2026.) Prices come from written estimates; more in the insulation cost guide.

Before you hire in Southampton

• Ask for the license number the work needs here (see who licenses insulation contractors above), and check it before you sign.
• Ask who files with the Town of Southampton Building and Zoning Department, and who books the inspections.
• Will you air seal before you insulate, and how will you test the result?
• What material and how much, and how does that compare with the code for this part of the house?