General contractors in East Hampton, NY 11930
4 general contractors, with local market data for this ZIP.
Area profitability, construction94 / 100Strong market
Typical home value$3,388,000+7.1% in the past year
New homes permitted, 20251,399Suffolk County
Homeowners82.6%316 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Building DetailsConstruction company · 103 Montauk Hwy, East Hamptonbuildingdetails.com
Harold McMahonGeneral contractor · 518 Montauk Hwy, Amagansett(631) 267-3471 · haroldmcmahon.com · 2 drivers, 1 truck
Mannix Custom BuildersConstruction company · 524 Montauk Hwy, East Hampton(631) 267-2400 · MannixCB.com
New Sunshine Custom BuildersConstruction company · 581 Montauk Hwy, Amagansett(631) 267-8455 · newsunshinebuilders.com
Construction in ZIP 11930 at a glance
Local building angle: Suffolk County permitted 1,399 new homes in 2025, including 287 apartment units. 18% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.