| Business | Phone |
| Dean Clock Contracting 130 Monell Ave, Islip 11751 | (631) 581-1715 |
| Friendly Construction Co 112 Cedar Ave, Islip 11751 | (631) 277-5852 |
| G Vik & Son Construction Corp 183 Beaver Dam Rd, Islip 11751 | (631) 581-8647 |
| Omni Tech Construction 3 Bay 3rd St, Islip 11751 | (631) 581-5403 |
| Imaginings Designs & Constr 75 Whitman Ave, Islip 11751 | (631) 581-2617 |
| Renovator Construction 240 Maple St, Islip 11751 | (631) 859-0899 |
| Kirchner Builders Inc 85 Ocean Ave # A, Islip 11751 | (631) 666-0353 |
| Shamrock Carpentry 16 Winwood Ct, Islip 11751 | (631) 581-5711 |
| Sunshine Construction Co Inc 55 Spruce St, Islip 11751 | (631) 324-1805 |
| Wild Karrde Inc 465 Main St, Islip 11751 | (631) 224-1300 |