Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Chimney Sweep Across Syosset
A standard chimney sweep in Syosset typically runs $189 – $249 for one fireplace, and most appointments wrap up within 60 to 90 minutes. We serve the entire Syosset area weekly, including homes along Jericho Turnpike, Cold Spring Road, and the neighborhoods off South Oyster Bay Road. If you’ve noticed a wood-burning smell even when the fireplace is cold, or if smoke rolls back into the room when you light a fire, that’s your flue telling you it needs attention. Call us at (516) 559-6922 and we’ll give you a written price before any work begins.
Why Flint Chimney Co Hempstead Is Syosset’s Preferred Chimney Sweep Company
Syosset homeowners call us because we put the price in writing before the first tool comes off the truck. That’s not a slogan. It’s the Garrison Standard, the operating code every Garrison Partners location follows. Our Chimney Sweep team arrives in uniform, works clean, and documents what we find. If you want to see photos from inside your flue, we’ll show them to you. No guesswork, no pressure to approve work you can’t verify.
Hank Delano runs our operation, and he’s built the crew around one habit: state the facts, quote the price, do the work. Syosset jobs are coordinated from our New York City office, but the technicians you’ll meet are assigned because they know this town’s housing stock specifically. Split-levels from the 1950s and 60s, colonials from the 70s and 80s, and newer luxury builds all have different chimney needs. The person we send knows what to look for in each.
Styles & brands we work with





Chimney Sweep Certified in Syosset
Chimney Sweep Certified means more than running a brush up the flue in a Syosset home. It means our technician removes creosote and soot, checks the damper operation, inspects the firebox, and confirms the flue liner is intact before we leave. For a single fireplace in Syosset, the sweep runs $189 – $249. If you’ve got two fireplaces plus a basement wood stove, expect to add $75 – $110 per additional flue. Every sweep includes a written report of what we found and what we cleaned.
Creosote Removal and Soot Treatment
First-degree creosote is the flaky black residue that builds up when wood doesn’t burn hot enough. It’s common in Syosset because many homeowners burn wood that isn’t fully seasoned, especially after wet seasons. Most of what we see responds to standard mechanical brushing. But second- and third-degree creosote, the tar-like glaze that hardens onto flue walls, requires chemical treatment or rotary cleaning tools. We’ll tell you which you have, show you the photos, and quote the removal before we start.
Annual Sweep for Multiple-Fireplace Properties
Larger Syosset properties often have a wood fireplace on the main floor, a second fireplace in a den or finished basement, and sometimes a wood stove added in the 1980s. Each flue needs its own cleaning and its own inspection. Scheduling all of them at once keeps the disruption to a single morning and gives you one consolidated report. We’ll also check that each flue is actually safe to use, because we’ve seen secondary flues that haven’t been swept in 20 years.
Gas Fireplace Cleaning in Syosset
Gas Fireplace Cleaning in Syosset is a different job from a wood-burning sweep, and it matters more than most people think. Gas units still accumulate soot, dust, and debris on logs, burners, and glass. A service call for a gas fireplace or gas insert runs $149 – $199. If you’ve converted an old wood fireplace to gas and haven’t had the unit serviced since the conversion, the burner ports may be partially clogged, which causes uneven flames and wasted fuel. We clean the logs, vacuum the firebox, inspect the gas line connections, and test the ignition.
Insert and Conversion-Specific Service
Many Syosset homes with 1960s masonry fireplaces have since been fitted with gas inserts. The insert seals the old chimney opening, but the flue above it still needs periodic inspection. Condensation from gas exhaust can deteriorate old terra cotta liners faster than wood burning does. We’ll check both the insert itself and the flue it vents through, because one without the other is half a job.
What We Check on Every Gas Unit
You’ll get a clear read on the pilot assembly, thermocouple, burner, and glass seal. If the glass has a milky film that won’t wipe clean, it usually means the unit was burning dirty for a while. That’s a burner issue, not a glass issue. We’ll tell you plainly whether the unit is safe to keep using, or whether a part needs replacement. Replacement parts are quoted in writing before we install anything.
Trusted Brands We Service in Syosset
We work on and install components from Olympia Chimney, Famco, and Copperfield. These are trade-grade brands, the kind a homeowner can look up and verify independently. When a Syosset repair requires a new cap, damper, or flashing component, we use parts from these manufacturers rather than whatever is cheapest at the supply house. If your chimney already has a DuraFlex liner, we service that too. The point is consistency: a repair should use materials matched to the existing system, not whatever fits the margin.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Syosset Homes
- Flue liner cracks in older masonry chimneys. Syosset has a large inventory of 1950s-80s chimneys with original terra cotta liners. Hairline cracks are common, and they let heat and gases reach the surrounding masonry. A Level 2 inspection catches these before they become a house fire.
- Animal nests blocking flues. The wooded lots around Syosset mean squirrels and raccoons look for uncapped chimneys every spring. A nest in the flue means a blocked chimney, and the first cold-night fire smokes out the living room. If you hear scratching in the chimney, call us before you light anything.
- Creosote buildup from wet or unseasoned wood. Syosset’s humid summers and wet autumns mean firewood doesn’t always dry as fast as homeowners expect. Burning wood with too much moisture produces more smoke and faster creosote buildup. First-degree creosote is removable with a standard sweep. Tar-like third-degree glaze is a different, more involved job.
- Freeze-thaw damage to crowns and brick. Syosset’s winters bring repeated freeze-thaw cycles. Water gets into small cracks in the crown or mortar joints, freezes, expands, and cracks the masonry further. By the time you see spalling brick on the exterior, the damage has been building for years. A sweep visit is often the first time someone notices.
Pricing for Chimney Sweep in Syosset, NY
Here’s what you can expect to pay in Syosset. A single wood-burning fireplace sweep runs $189 – $249. A gas fireplace or gas insert cleaning runs $149 – $199. Add a second or third flue to a wood sweep and you’re at $75 – $110 per additional flue. A Level 1 inspection is included with every sweep. A Level 2 inspection, which uses a camera to examine the interior of the flue and liner, runs $249 – $349. If we find damage during the sweep, you get a written quote before any repair work happens. You approve or decline, no pressure. Call (516) 559-6922 and we’ll walk through the numbers for your specific setup.
We Also Serve Cities Near Syosset
Our service area includes Plainview, Hicksville, Westbury, and Levittown. If you’re in one of those towns, you’ll get the same written-price-before-work policy and the same crew standards we bring to Syosset. For the full scope of what we do, see our Chimney Sweep page, and for more on how we work locally, see Chimney Sweep in Syosset.
Serving Syosset, NY - Our Local Coverage Area
We’re based in the Syosset area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Chimney Sweep in Syosset
Every flue that carries exhaust needs an annual sweep or service, so if you burn wood in one fireplace and run a gas insert in another, both need attention each year before burning season. The wood flue needs creosote removal; the gas insert needs burner and pilot service. In Syosset we recommend scheduling both in the same visit. It saves you a second trip fee and gives you one written report for the whole house. Call (516) 559-6922 to set it up before you light the first fire.
First-degree creosote looks like flaky black powder or fine soot dusted along the flue walls. A standard mechanical brush removes it in most cases, provided the buildup hasn’t progressed. In Syosset homes that burn less-seasoned wood, we sometimes find first-degree creosote has begun to harden in spots, which is the early stage of second-degree. We’ll tell you what you have, show you the photos, and quote the appropriate removal method before we start. Call (516) 559-6922 to schedule.
Yes, and the specific concern is the condition of the original terra cotta liner. A 1960s split-level in Syosset that has never been relined almost certainly has cracks somewhere in the flue. Gas inserts produce lower temperatures than wood fires, but their exhaust is more acidic and can worsen existing liner damage. Before converting, get a Level 2 inspection with a camera. That tells you in plain terms whether the flue is safe to vent a gas insert through, or whether relining with a product like DuraFlex is the right move. Call (516) 559-6922 and we’ll inspect it before you commit to a conversion.
It’s both, but the crack in the crown is a repair issue, and the water staining is the evidence of why it can’t wait. A cracked crown lets water into the masonry, where freeze-thaw cycles widen the damage every winter. The stain on the ceiling means water is getting through the chimney chase or flashing. A sweep can clean the flue and document the condition, but sealing the crown and fixing the flashing is repair work. When we do the sweep, we’ll quote the repair in writing, with the exact scope and price, before anything happens. Call (516) 559-6922 and we’ll take a look.
A chimney sweep removes the nesting material, debris, and creosote from the flue, but a licensed animal removal professional must handle a live animal. In Syosset, where wooded lots are the norm, uncapped flues are an open invitation to squirrels and raccoons every spring. Our sweep will clear the nest, tell you if the flue is still blocked, and install a cap like a Gelco unit with a proper animal screen so it doesn’t happen again. The cap is quoted separately and in writing. Call (516) 559-6922 to schedule.
Written by Hank Delano, Owner at Flint Chimney Co Hempstead, serving Syosset through the Garrison Partners family of chimney service companies.