General contractors in Mount Sinai, NY 11766
16 general contractors, with local market data for this ZIP.
General contractors 16Concrete and masonry 5Remodeling 4Roofing and exteriors 3HVAC 2Painting 1Electricians 1
Area profitability, construction62 / 100Strong market, crowded field
Typical home value$772,000+6.5% in the past year
New homes permitted, 20251,399Suffolk County
Homeowners92.5%3,863 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
All Pro Remodeling CorpGeneral contractor · 32 Chestnut St, Mt Sinai(631) 928-0688 · allproli.com
Deon ConstructionConstruction company · 17 Apricot Rd, Brookhaven(631) 331-4969 · deonconstruction.com · 1 driver, 1 truck
Gera Gardens Inc.General contractor · 456 Route 25A, Brookhaven(631) 474-3800 · geragardens.com · 3 drivers, 4 trucks
Luxury Construction Long IslandConstruction company · 72 casey Lane, Mount sinai(631) 892-2866 · luxuryconstructionlongisland.com
New Line Kitchen DesignsGeneral contractor · 340 Route 25A, Mt Sinai(631) 331-3827 · newlinekitchens.com
Suffolk County RemodelingGeneral contractor · 5507 Nesconset Hwy, Mt Sinai(631) 664-7999 · buildritepro.com
Weather Foam InsulationGeneral contractor · 1054 RT-25A, Brookhaven(631) 821-8050 · weatherfoam.com
Winston and Sons FenceGeneral contractor · 352 Mount Sinai Coram Rd, Mount Sinai(631) 682-3180 · winstonandsonsfence.com · 1 driver, 1 truck
Advanced Framing Construction IncConstruction company · Mount Sinai(631) 872-6769 · 1 driver, 1 truck
Belvedere Brothers ConstructionConstruction company · Mount Sinai(631) 743-9203 · 6 drivers, 7 trucks
Crystal Brook PoolsGeneral contractor · 161 Crystal Brook Hollow Rd, Brookhaven(631) 331-0141 · 2 drivers, 1 truck
GID Construction IncConstruction company · 5507 Nesconset Hwy, Brookhaven(631) 312-2670
Knox Contracting & Construction CorpConstruction company · Mount Sinai(631) 682-3522 · 1 driver, 1 truck
MT Sinai BuildersConstruction company · MT Sinai(631) 928-8050 · 1 driver, 1 truck
Sigma ConstructionConstruction company · 44 Salisbury Run, Mt Sinai(631) 961-0477 · 1 driver, 8 trucks
Tony Bertolotti Inc DBA Diamond ConstructionConstruction company · Mount Sinai(631) 473-3335 · 1 driver, 2 trucks
Construction in ZIP 11766 at a glance
Local building angle: Suffolk County permitted 1,399 new homes in 2025, including 287 apartment units. 37% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.