Home improvement contractor · Greenport, NY
Costellos Marine Contracting Corporation
- Licensed by
- Suffolk County
- Based in
- Greenport, NY 11944
- Licensed since
- 2009 · 17 yrs
- License holder
- John Costello
Services
As listed on the license: General Contractor, Stairways/Railings, Bulkheads
License details
| License # | Issued by | Type | Status | Issued | Expires |
|---|---|---|---|---|---|
| H-46234 | Suffolk County | Home improvement | Active | May 2009 | May 2027 |
| HI-72357 | Suffolk County | Home improvement | Active | Mar 2026 | Mar 2028 |
Verify this license with Suffolk County Consumer Affairs licensing before signing a contract.
Before you hire on Long Island
- Check the license number with the county that issued it. Nassau and Suffolk each license home improvement contractors separately.
- Ask for proof of insurance: general liability, plus workers' compensation if they have employees.
- Get a written contract with the price, payment schedule, start and finish dates, and the work described in detail.
- Confirm permits with your town or village building department before work starts.