SealMaster
General contractor in Islip, NY 11751
About this company
SealMaster is listed as a general contractor at 157 Grant Ave in Islip, New York, in Suffolk County. It is one of 17 general contractors in ZIP 11751.
Other construction companies nearby
Brandstrom Interiors467 Main St, Islip
0.3 mi(631) 592-1532
Friendly Construction57 Saxon Ave, Bay Shore
0.7 mi(631) 647-3402
Artistic Iron Works94 Saxon Ave, Islip
0.7 mi(631) 665-4285
Riley Excavating & Contracting195 S Denver Ave, Bay Shore
0.9 mi(631) 665-0420
Bilello Construction25 Jefferson Ave, East Islip
1.1 mi(631) 224-5970
Housing market around ZIP 11751
Figures describe the local area, not this company.
Typical home value$675,000+5.9% past year · +76% in 10 years
12-month value outlook+3.4%
Days to sale agreement33New York metro · 32 a year ago
New homes permitted, 20251,399Suffolk County
Listings with a price cut16.6%New York metro
Sale price vs list102.3%New York metro
New construction sales390New York metro, Aug · −29% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
Local building angle: Suffolk County permitted 1,399 new homes in 2025, including 287 apartment units. 4% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.