Last reviewed October 31, 2026.
A roofer is standing in your driveway with a clipboard and a price that is only good if you sign today. The truck has a logo and a phone number on the door. Neither one tells you whether Nassau or Suffolk ever licensed the company, or whether anyone on the crew is insured if they fall off your roof.
Albany leaves home improvement licensing to the counties, and Nassau and Suffolk each keep a free public lookup. This page explains what we check before a company shows up here, and how to check one yourself in a few minutes.
What the October 28 Nassau check covered
On October 28, 2026 we looked up all 89 companies in the Nassau County Consumer Affairs home improvement register. A card says verified only when the phone on that record matched the business and the record was listed as licensed. The card then shows the number, the status, the expiry, and a link to the record. If that expiry falls within 60 days, the card adds an “expires soon” note.
Twelve other rows matched a name and a street address while the phone did not. Those numbers stay off the site until a person confirms them. Similar names that did not match a phone or an address, and searches that came up empty, are not shown as verified either. A number a contractor prints on its own website is not treated as verified on its own.
Suffolk County Consumer Affairs and New York workers’ compensation were not part of this pass. A company based in Suffolk can hold a Suffolk license and still be missing from the Nassau register. We plan to open the Nassau register again about every 30 days, and again before a verified expiry date.
Where the directory’s companies come from
The directory holds 89 roofing companies with a shop in Nassau or Suffolk, a few of them in both. A card shows the name, the town, a link out to the Google Maps place, and the Nassau license line. We keep the place ID for that link. We do not copy star ratings or review text onto the card, and we do not write a description or a price for anyone. The order is alphabetical. When a contractor pays to be featured, the card says Featured.
Reading the license line on a card
A card carries one of three lines, plus a short note with the town: the line is a snapshot, it can change, and it is not a guarantee.
- Verified, with a number, a status, an expiry, and a link to the Nassau record, dated October 28, 2026. Our terms say the same thing: it is not a guarantee of the work.
- Not confirmed in the Nassau register on that date. That does not mean the company is unlicensed. Business names and licensing counties vary, so ask to see a current license.
- License not yet checked. We have not opened the register for that company. None of the 89 companies currently in the directory are in this bucket. The link goes to the county lookup.
A company gets its own profile page here only after a license has been checked and the profile is switched on. You will not find profile pages in the live directory yet.
Five checks before you sign
1. Look up the license in your county. Ask for the license number and run it, or search the company name.
| Nassau | Suffolk | |
|---|---|---|
| Lookup | Nassau license lookup | License and Complaint Violation Look Up |
| What you can type in | The number, the company, or its address | The number, a person or business name, a phone number or an address |
| Shows | Active or not, the address on file, the category and the insurance on record | The license, plus complaints and violations |
| Phone | Consumer Affairs, 516-571-2600 | Consumer Affairs, (631) 853-4600, weekdays 9 a.m. to 4 p.m. |
2. Match the name on the contract. Nassau says it is a violation to do business in a name other than the licensed one, and Suffolk’s code prohibits the same thing. The company on the contract should be the company on the license.
3. Ask about complaints. Suffolk Consumer Affairs will tell you how many complaints a company has had in the past five years and whether they are open or closed. Nassau Consumer Affairs will discuss a firm’s complaint history on the phone.
4. Get an insurance certificate, then call the insurer. Nassau requires licensed contractors to carry $250,000 per person and $500,000 per accident in bodily injury coverage, $100,000 for property damage, and workers’ compensation. The New York Attorney General warns that if a contractor is uninsured, you could be held liable for injuries or damage. A certificate is a piece of paper, so call the insurance company named on it and ask whether the policy is active.
5. Get the permit number. If your town requires a permit, ask the contractor for the number and call the building department to confirm it is on file. Suffolk Consumer Affairs says to hold the final payment until the required inspections are finalized.
The county guides go deeper on the rules behind each step: Nassau and Suffolk.
When a contractor’s details do not line up
A license that has lapsed, a different company name on the contract, or a certificate the insurer cannot find are all reasons to stop and ask before you sign. In Nassau, call Consumer Affairs at 516-571-2600. In Suffolk, call (631) 853-4600. If you are a contractor and your card is wrong, send us the correction and your license number and we will check it against the county record.
Shorter lists, one town at a time, use the same license line described above.
- City of Glen Cove contractor list
- Town of Hempstead contractor list
- Town of North Hempstead contractor list
- Town of Oyster Bay contractor list
- Town of Valley Stream contractor list
- Town of Babylon contractor list
- Town of Brookhaven contractor list
- Town of East Hampton contractor list
- Town of Huntington contractor list
- Town of Islip contractor list
- Town of Lindenhurst contractor list
- Town of Patchogue contractor list
- Town of Riverhead contractor list
- Town of Smithtown contractor list
- Town of Southampton contractor list
