Registered public work contractors in Islip Terrace, New York
11 contractors and subcontractors based in Islip Terrace hold a certificate of registration in the state file of Oct 1, 2026; 0 are MWBE owned and 2 are associated with an apprenticeship program.
| Contractor | Certificate | Expires |
|---|---|---|
| ALL SERVICE HEATING AND AIR CONDITIONING INC. | 25-65RAX-CR | Mar 21, 2027 |
| Ashlar Contracting LLC | 24-64R56-CR | Dec 29, 2026 |
| D&S Mechanical Services Inc. | 26-64FXZ-CR | Dec 29, 2028 |
| Harvest Power LLC | 25-65XPH-CR | Apr 25, 2027 |
| HOLLBORN ELECTRIC INC | 25-6HOZK-CR | Aug 27, 2027 |
| Hollborn Plumbing Inc | 25-6HRR7-CR | Jul 9, 2027 |
| Microtech Contracting Corp. | 24-64YYH-CR | Dec 29, 2026 |
| NuLine Fire Protection NuLine Mechanical Services, LLC. | 26-9YYX3-CR | Sep 10, 2028 |
| Order A Plumber Inc. | 26-695P6-CR | Aug 27, 2028 |
| Suffolk Plate Glass Co, Inc | 26-668QD-CR | Mar 4, 2028 |
| WS FIRE AND CONTROL WIRING CORPORATION | 25-641K5-CR | Jan 27, 2027 |
Alphabetical order — this site ranks no one. Certificates in the New York State Department of Labor file of Oct 1, 2026. Absence from a list is not proof a contractor is unregistered. How to read this.