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 Uniondale
A chimney sweep in Uniondale typically runs $189 – $289 for a standard single-flue cleaning, with most jobs completed in 60 – 90 minutes. We cover every block in Uniondale, from the split-levels off Jerusalem Avenue to the ranches near Smith Street and the colonials north of Hempstead Turnpike. Our crews know these homes well because we’ve worked on hundreds of them since 2002. Call (516) 559-6922 and a live person answers, any hour, day or night.
Why Flint Chimney Co Hempstead Is Uniondale’s Preferred Chimney Sweep Company
Uniondale homeowners call us because we put the price in writing before a single tool comes off the truck. That’s The Garrison Standard, the same code every Garrison Partners location follows. No door-knock surprises, no “we found something while we were up there” invoice padding. Hank Delano runs our crews, and he holds every technician to the same rule: document what you found, show the homeowner the camera evidence, and price the repair before you start it. Every repair carries our 365-Day Done Right Promise, a written guarantee valid for one full year. If a covered repair fails in that window, we return at no charge. No argument, no second invoice.
We answer phones with a live person 24/7. You’re not leaving a voicemail at 7 p.m. on a Sunday and hoping someone calls back Monday. You’re talking to a scheduler who can tell you exactly when a background-checked, uniformed technician will arrive in Uniondale, and what the job will cost before that window begins.
Styles & brands we work with
Fireplace Cleaning in Uniondale
Fireplace Cleaning in Uniondale means removing creosote, soot, and the debris that accumulates in flues serving the wood-burning fireplaces common in this town’s 1950s and 60s housing stock. Our techs brush the full flue from the firebox to the cap, remove ash and soot from the smoke shelf and damper assembly, and leave a drop cloth barrier around the hearth so no particulate reaches your living room floor. A standard fireplace cleaning here runs $189 – $289 depending on flue height and creosote volume.
Creosote Removal and Soot Removal
Creosote Removal is the core of any honest sweep. It’s not a visual wipe-down. We remove the flammable tar that condenses on flue walls as wood smoke cools. In Uniondale’s shallow mid-century flues, first-degree creosote can build faster than homeowners expect because the chimney never fully warms in mild coastal winters. Soot Removal handles the fine black powder that settles into the smoke chamber and can drift back into the room when drafts shift. Both are done mechanically, with brushes sized to the flue, not acid treatments that promise miracles.
Annual Sweep
An Annual Sweep is the cadence the National Fire Protection Association recommends for any wood-burning fireplace in active use. For Uniondale homes with 1950s fireboxes and original clay liners, we lean toward the same schedule, no exceptions. A yearly sweep gives us a chance to spot the hairline liner cracks and green moss staining that signal bigger problems before they become a chimney fire or a carbon monoxide leak. We photograph everything and show you the images before we recommend a repair.
Chimney Services in Uniondale
Chimney Services in Uniondale cover the full range of what these mid-century masonry stacks require: sweeping, inspection, crown repair, flue relining, and cap installation. When we find a problem during a sweep, we don’t hand you a quote with vague line items. We show you the camera footage, explain what’s failing and what can wait, and give you a written price. Crown repair on a Uniondale ranch typically runs $450 – $850. A stainless steel flue liner using DuraFlex starts around $1,400 and goes up based on flue height and access.
Level 1 and Level 2 Inspection
A Level 1 Inspection happens during every sweep: we verify the flue is clear, the damper operates, and no visible damage exists in the accessible portions of the chimney. A Level 2 Inspection goes further, using a video camera to examine the full flue interior. We recommend a Level 2 when you’re buying a home in Uniondale, when you’ve had a chimney fire, or when a neighbor reports odor and you suspect shared-stack cross-contamination. Level 2 inspections here run $249 – $399.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Uniondale
We install and work with professional-grade materials from Olympia Chimney, Gelco, and Copperfield, chosen by job, not by margin. That means when we quote a stainless liner on a Uniondale split-level, we specify the brand on the written estimate so you can verify the product yourself. We stock common cap sizes, flue tiles, and crown repair materials locally, which shortens turnaround for Uniondale jobs. Having the right part available here, now, is the difference between fixing a crown in one visit and waiting two weeks on a backorder.
Common Chimney Sweep Problems We See in Uniondale Homes
- Green moss on the south-facing crown. Uniondale’s prevailing ocean winds push salt-laden moisture against south-facing chimney crowns, leaving green staining that looks harmless. It’s not. It means the mortar is holding water, and within a season that water will spall the brick and crack the crown. A crown repair is $450 – $850. A full rebuild is more.
- Hidden cracks in shallow clay tile liners. Uniondale’s 1950s and 60s homes often have clay tile liners that were never intended for decades of thermal cycling. The cracks hide in the upper flue where you can’t see them from the firebox. A basic brush sweep won’t find them. A Level 2 camera inspection will. Ignoring them leaves a direct path for heat and gases into framing.
- Cross-contamination in multi-flue chimneys. Many Uniondale split-levels have two or three flues stacked in one masonry chimney, and homes sit close enough that a neighbor’s faulty boiler venting into an adjacent stack can push smoke and carbon monoxide into your flue, even with your damper closed. Sweeping only your own flue without checking the shared partition solves nothing.
- Unlined or partially lined furnace flues. Older Uniondale homes often vent a gas or oil furnace through an unlined masonry flue. The acidic exhaust breaks down mortar joints, and the resulting leaks can send carbon monoxide into living space. A properly sized stainless liner, typically DuraFlex, corrects this. It’s not a cosmetic upgrade. It’s the difference between a safe exhaust path and a poisoning risk.
See the difference
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After
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AfterPricing for Chimney Sweep in Uniondale, NY
Here’s what you’re looking at in Uniondale. A standard single-flue chimney sweep runs $189 – $289. A Level 2 video inspection runs $249 – $399. Crown repair runs $450 – $850. A stainless DuraFlex liner starts around $1,400. Fireplace cleaning for a wood-burning unit with heavy creosote may add $50 – $100. No pricing games. The written estimate you approve is the number on the invoice. Call (516) 559-6922 for an exact quote on your chimney. Estimates are free. We’ll tell you what it costs before we book the truck.
We Also Serve Cities Near Uniondale
Our crews take calls across central Nassau. We serve Uniondale plus Hempstead, East Meadow, Merrick, and Freeport. If you’re on the border of any neighboring block, you’re still in our service area. For the full scope of what we handle, see our Chimney Sweep service page. Same written pricing. Same guarantee.
Serving Uniondale, NY - Our Local Coverage Area
We’re based in the Uniondale 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 Uniondale
That green staining is moss or algae feeding on moisture trapped in your chimney’s masonry, and it’s the early warning sign that your crown or mortar joints are holding water. Left alone in Uniondale’s damp, salt-laden air, that retained moisture freezes and thaws through winter, spalling brick faces and opening cracks in the crown. It does not mean your flue liner has failed yet, but it means your masonry is deteriorating and the liner is one season closer to exposure. We’ll fix it for $450 – $850 before it becomes a rebuild. Call (516) 559-6922 and we’ll put the repair in writing.
Yes. Uniondale’s dense mid-century blocks have many attached or closely adjacent homes where flues share a masonry chimney or sit close enough that a neighbor’s chimney can press smoke and carbon monoxide into yours. We’ve seen this on split-levels off Jerusalem Avenue, where two flues run in one stack and a hairline crack in the shared brick partition allows cross-contamination even with your damper shut. We isolate the flues and, when needed, resurface with HeatShield to close that path. If you smell smoke with your damper closed, call (516) 559-6922 for a Level 2 inspection.
Once a year, every year, without exceptions. Uniondale’s shallow mid-century fireboxes and narrow flues build creosote faster than deeper modern designs because the smoke path is shorter and the flue never fully warms in our mild coastal winters. If you burn more than two cords a season, or if you burn green or unseasoned wood, we’d consider a mid-season sweep. The cost of a standard sweep here is $189 – $289. The cost of a chimney fire is a different number entirely. Call (516) 559-6922 to schedule your annual sweep and get the price in writing.
The difference is fire risk and removal method. First-degree creosote is a light, flaky soot layer that brushes off easily. Third-degree creosote is a hard, shiny, tar-like glaze that resists mechanical sweeping and requires a chemical treatment or a complete liner replacement depending on severity. Uniondale’s coastal humidity and the shallow flues in our mid-century homes create conditions where creosote can progress from first-degree to third-degree faster than you’d expect, because the flue never fully dries between burns. Our sweep includes a creosote stage report so you know exactly what’s in your flue. Call (516) 559-6922 and we’ll document it for you.
Yes. An uncapped flue, even one only venting a furnace, lets rain, salt-laden air, and Greenwich-area bird life into the stack. In Uniondale’s damp coastal climate, that water accelerates mortar deterioration from the inside. A stainless cap, typically an Olympia Chimney or Copperfield model, runs $150 – $350 installed, depending on flue size and access. We stock the common sizes for Uniondale’s split-levels. Call (516) 559-6922 and we’ll tell you exactly which cap fits and what it costs before we book the truck.
How Uniondale’s Attached Flues and Ocean Moisture Create Chimney Failures a Generic Sweep Won’t Catch
On a split-level off Jerusalem Avenue, a customer kept smelling smoke even with her damper shut. Our crew found two flues in one stack. The neighbor’s adjacent flue had third-degree creosote building up, and the shared brick partition between them had a hairline crack at the smoke chamber level. We isolated the flue with a HeatShield resurfacing and capped the neighbor’s unused flue, restoring proper draft and ending the cross-contamination. That’s the kind of failure a checklist sweep from a generic company won’t catch. It’s why our Level 2 inspections on Uniondale homes always include a check of adjacent flue conditions when the stack is shared or close-set.
Uniondale’s mid-century split-levels often have multiple flues sharing a single masonry chimney, and because the homes are built close together in dense blocks, a neighbor’s wood stove or faulty boiler venting into a shared or adjacent stack can push smoke and carbon monoxide into your flue, even if your damper is closed. Add the damp, salt-laden Atlantic air accelerating efflorescence and spalling in brick, and you have a recipe for chimney failures that a standard brush-and-go sweep will never catch. We document everything with camera images, show you what we see, and give you a written price before any repair starts. That’s the Garrison Standard. It’s how Hank Delano runs every job out here.
Call Now for Chimney Sweep in Uniondale
If your chimney needs a sweep, an inspection, or a repair you can stand behind in writing, call (516) 559-6922. A live person answers, 24/7. We’ll schedule a background-checked, uniformed technician, give you a written price before any work starts, and back every repair with our 365-Day Done Right Promise. Estimates are free. The guarantee is written. The number is (516) 559-6922.
Written by Hank Delano, Owner at Flint Chimney Co Hempstead, serving Uniondale and central Nassau County since 2002.