About Syosset
Syosset is a hamlet in the Town of Oyster Bay, Nassau County, on Long Island's North Shore; its ZIP codes are 11791 and 11773.
Syosset took in the former hamlet of Locust Grove for the 1990 census.
Syosset Hospital opened on Jericho Turnpike in 1962 to serve the growing suburban community.
We serve Syosset homes in ZIP codes 11791, 11773.
What This Means for Your Syosset Chimney
Postwar homes and their chimneys
Homes built in the postwar decades often have a brick chimney with a mortar crown that was never meant to last. After decades of winters, crowns crack, caps go missing and flashing lets water in. These are quick, affordable fixes when caught early. Read: What Should You Do About a Cracked Chimney Crown?
Wind, rain and salt air
Near open water, wind drives rain sideways into the chimney and salt air corrodes metal caps and flashing faster. A sturdy cap and sound flashing keep water out of the flue and the masonry. Read: Does My Chimney Need a Cap?
For the bigger picture, read our local guide: Chimney Care in Nassau County, NY: What Local Homeowners Should Know
Why Syosset Homeowners Call Us
- Family-owned, with our own crew and 15+ years of experience
- Licensed & insured
- Free written estimates before any work
- Upfront pricing, no hidden fees
Chimney Services in Syosset
- Chimney Sweeping in SyossetCreosote out, draft back, ready for the next fire.Learn more
- Chimney Inspection in SyossetKnow it is safe before you light it.Learn more
- Chimney Repair in SyossetCracks, loose brick and failed mortar, fixed.Learn more
- Chimney Rebuild in SyossetDown to sound masonry, built back right.Learn more
- Caps & Crowns in SyossetKeep rain, birds and animals out.Learn more
- Chimney Liners in SyossetSized for your fireplace, stove or boiler.Learn more
- Masonry & Tuckpointing in SyossetFresh mortar joints that keep water out.Learn more
- Leak Repair in SyossetWe trace the water and fix the cause.Learn more
- Fireplace Repair in SyossetFirebox, damper and draft problems solved.Learn more
- Dryer Vent Cleaning in SyossetLint out, faster and safer drying.Learn more
Nearby Areas We Serve in Nassau County
By the numbers
What Syosset’s Weather and Homes Mean for Your Chimney
- 1958
- Median year Syosset homes were built
- 3.3%
- Of Syosset homes built before 1940
- 83
- Nights a year at or below freezing
- 27.2°F
- Average January low
- 18.5 in
- Snow in an average year
- 45.3 in
- Rain and melted snow a year
Half of the homes in Syosset were built before 1958, and 3.3% date from before 1940, so a good share of chimneys here were built to older standards, with clay tile liners and crowns that are now decades old. With about 83 freezing nights a year in Nassau County, water that gets into a crack freezes and widens it again and again, which is why we check the crown and flashing on every visit.
Sources: NOAA 1991-2020 U.S. Climate Normals, Mineola station; U.S. Census Bureau, American Community Survey 2023 5-year estimates (Syosset CDP, New York). NOAA data · Census data

Limited time offer
$500 OFF
Any chimney service. Mention it when you call or book online.

Simple from the first call
How It Works
- Your callCall, text or book online
Tell us what you see or smell. A real person from our team answers and sets a time that suits you.
- The visitFree chimney inspection
Our own crew arrives in a marked Pro 1 van, covers the floor and inspects the chimney from the firebox to the cap, free of charge.
- The estimateFree written estimate
We walk you through what we found, in plain words, and put any repair in writing before work starts.
- The workThe job, done right
We do the work, clean up the roof, the yard and the room, and walk you through the finished job.
Book before the holidays. Fireplaces get their heaviest use from Thanksgiving to New Year. A free inspection now catches nests, creosote and cracked flue tiles before the first big fire and the family gatherings.
Book My Free InspectionFree Estimate in Syosset
Leave your details and our local team calls you back to set a time.