Do I Need a Permit to Replace Kitchen Cabinets on Long Island?

This is the single most common question we get, and it has a clean answer for once.

Replacing kitchen cabinets in the same layout does not require a building permit anywhere we work on Long Island. It is finish work, in the same category as paint, tile and carpet. The Town of Islip names cabinets explicitly on its list of work that needs no permit, and the other Suffolk towns treat it the same way.

The catch, and it is the whole article

The exemption covers the cabinets. It does not cover what is behind them.

Kitchens rarely go back exactly where they were. The new layout is a little better, the sink shifts eighteen inches to line up under the window, the dishwasher finally gets its own spot, somebody adds an island. Every one of those decisions quietly moves the job from finish work into permitted work, and nobody announces it.

• The sink moves. That is a plumbing permit. The waste line and vent have to be right, and this is where most homeowners get caught.
• You add a dishwasher where there was not one. New supply, new drain, permit.
• The range goes from electric to gas, or moves. Gas connection. Permit, licensed plumber, pressure test.
• New outlets, new circuits, or 240V for an induction cooktop. Electrical inspection.
• A cabinet run needs a wall shortened or removed. Structural. Drawings, and in Huntington a sealed set.

So how do I know which one I have?

One question: does anything that carries water, gas or electricity end up in a different place than it started? If no, you are doing finish work. If yes, file.

If you are not sure, call us and describe it. It takes two minutes and we do not charge for the answer — we would much rather tell you up front than get called in eight months to legalize it.

Buying cabinets alone

A fair number of the people asking this question are not remodeling at all — they are landlords, flippers, and homeowners who want the boxes and have their own installer. That is a straightforward purchase with no permit attached, right up until the installer moves the plumbing.

We sell cabinet sets on their own for cash pickup as well as installing them. The sets currently in our warehouse are here, and if you want the whole kitchen done instead, installed runs $20,000 to $30,000.

A note on doing it properly

None of this is an argument for skipping permits. It is an argument for knowing which job you actually have, so you neither pay to file work that does not need filing nor find out at closing that your kitchen has an open plumbing issue nobody disclosed.

The towns differ on the rest of it — here is how Huntington, Islip, Brookhaven and Smithtown compare.

Verified August 2026. Town requirements and fees change without notice and each department publishes independently. Confirm anything here with your town building department at (631) 312-7441 before you order materials or sign a contract. We are contractors, not your building department, and we would rather you make the call than take our word for it.

Towns we answer this question in every week

The answer is consistent across Suffolk, but the department you would file with if the job grows is not. If you are in an incorporated village, the village governs.

• Brookhaven — Patchogue, Medford, Holbrook, Farmingville, Coram, Selden, Bellport, Shirley, Mastic, Centereach
• Islip — Islip, Bay Shore, West Islip, East Islip, Sayville, Bohemia, Oakdale, Brentwood, Holbrook
• Huntington — Huntington, Northport, Dix Hills, Melville, Greenlawn, Centerport, Huntington Station
• Smithtown — Smithtown, Nesconset, Commack, Kings Park, St James, Hauppauge
• Babylon — Babylon, West Babylon, North Babylon, Lindenhurst, Copiague, Deer Park, Wyandanch
• Riverhead — Riverhead, Wading River, Calverton, Aquebogue, Jamesport
• Brookhaven villages — Port Jefferson, Bellport, Patchogue village and Lake Grove each have their own building department separate from the Town

If your town is not on the list, call anyway — the list is where we work most, not a boundary. Anything from Nassau through the Twin Forks is fair game; we tell you honestly if travel makes a small job uneconomical.

Frequently Asked Questions

Do I need a permit to replace kitchen cabinets?
No, not if the layout stays the same and nothing carrying water, gas or electricity moves. Cabinet replacement is finish work. The Town of Islip lists cabinets explicitly among work that does not require a permit.

What if the new cabinets change where the sink goes?
Then you need a plumbing permit. The exemption covers the cabinets, not the plumbing behind them. Moving a sink means the waste line and vent change, and that is permitted work in every Suffolk town.

Do I need a permit to add a dishwasher?
If there was no dishwasher before, you are adding a water supply and a drain, which requires a plumbing permit. Swapping an existing dishwasher for a new one in the same spot does not.

Is refacing cabinets different from replacing them?
No, in permit terms they are the same. Refacing changes only the doors and visible surfaces, so it is finish work. Neither one triggers a permit on its own.

How do I know if my kitchen needs a permit?
Ask one question: does anything carrying water, gas or electricity end up somewhere different than it started? If no, it is finish work. If yes, file for a permit.

Related Reading

• Kitchen permits by town — how the Suffolk towns differ
• Islip kitchen permits — the town that names cabinets as exempt
• Huntington kitchen permits — the $10,000 architect threshold
• Kitchen remodel cost — 2026 Long Island numbers
• Bathroom remodel permits — the same logic with more plumbing