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Find a licensed pro in Smithtown, NY
Homes in Smithtown
Across the Town of Smithtown, villages included, the Census Bureau counts 40,714 homes. The median was built in 1968, 24% before 1960. 89% are owner-occupied and 86% are single-family detached houses. The median owner-occupied home is valued at $669,900.
Utility gas 50%, fuel oil 39%, electricity 7%: that is how occupied homes here are heated (Census Bureau estimates for 2020-2024).
Permits
The Town issues building permits outside its incorporated villages; a village with its own building department handles permits inside its limits. The Town of Smithtown Building Department is the office ((631) 360-7520). Our Town of Smithtown permit guide covers how to apply.
Trades we match in Smithtown
| Trade | What the town says |
|---|---|
| Roofing | Changing a Smithtown roofline, or adding gables or pitches, takes a permit; plain re-shingling does not. |
| Heating and cooling | Smithtown takes HVAC and gas conversion permit applications online. |
| Plumbing | Smithtown plumbing-only permits need two notarized applications and the contractors' county license IDs. |
| Electrical | Smithtown posts its electrical inspection agency list and closes electric-only permits when the agency certificate arrives. |
| Water damage repair | Smithtown floodplain work needs a permit before it starts and a certificate of compliance before use. |
| Basement waterproofing | Finishing a basement in Smithtown takes a building permit. |
| Fences and decks | Smithtown fences over 4 feet need a permit, and none may top 6 feet. |
| Junk removal and demolition | Smithtown demolition permits need notarized applications, surveys, an excavation affidavit and the contractor's county license and insurance. |
| Standby generators | Smithtown generator filings need a survey with distances to lot lines and structures, within accessory setbacks. |
| Driveways, pavers and masonry | Work in Smithtown's right of way needs a permit, and replacing a driveway apron takes a road opening permit. |
| Tree service | Shade trees along Smithtown's town roads are generally the Highway Department's responsibility. |
| Sheds | Smithtown's FAQ puts the shed permit line at 144 square feet and 12 feet tall; a 2019 chart says 50 square feet. |
How Revival helps
Request a free call. Revival goes over the job and the permit with you, checks licenses and insurance, and introduces up to two vetted, licensed pros as they join our network in Suffolk County. You choose who to hire, and you never pay Revival.
Trades in Smithtown
- Roofers in Smithtown
- HVAC Contractors in Smithtown
- Plumbers in Smithtown
- Electricians in Smithtown
- Water Damage Repair in Smithtown
- Basement Waterproofing in Smithtown
- Fence and Deck Builders in Smithtown
- Junk Removal and Demolition in Smithtown
- Generator Installers in Smithtown
- Driveway and Paver Contractors in Smithtown
- Tree Service in Smithtown
- Shed Builders in Smithtown
More
Questions homeowners ask
Who issues building permits in Smithtown, NY?
The Town of Smithtown Building Department issues permits for the parts of the Town of Smithtown outside incorporated villages. A village with its own building department issues permits inside its limits.
How old are the homes in Smithtown?
The median home in the Town of Smithtown was built in 1968, and 24% were built before 1960, according to Census Bureau estimates for 2020-2024.
How does Revival find a licensed pro in Smithtown?
Request a free call. Revival goes over the job and the permit, checks licenses and insurance, and introduces up to two vetted, licensed pros as they join our network. You choose who to hire.
Sources
Every fact on this page comes from these official pages. Rules and fees change, so confirm with the office before you file anything.
Checked 2026-11-03. Facts come only from the official pages listed, read on that date.
Talk the job through before you call anyone
Tell us about the house and the job in about four minutes. Revival calls you, free, to go over the scope, the budget, the timing and your town's permit office. Contractor matches open as our first licensed partners sign.