Level 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 Cleaning & Sweep Across Jericho
A typical chimney sweep in Jericho runs $180-$320 for a standard Level 1 cleaning and inspection, with Level 2 camera inspections ranging $250-$450 depending on access and flue condition. Most Jericho appointments are completed in a single visit, and our crews are familiar with the specific chimney problems this town’s housing stock presents. Call (934) 348-4832 to book - a live person answers, any hour.
We’ve been working on Jericho chimneys for decades. The town’s mix of post-war colonials off the Jericho Turnpike, expanded cape cods near Syosset Creek, and newer teardown-rebuilds south of Route 25 means no two flues are the same. Our technicians know which streets still have original terra-cotta liners sized for oil boilers, which neighborhoods saw gas conversions in the 2010s, and where the freeze-thaw damage tends to show up first. That local knowledge saves time on the job and prevents the missed calls that lead to bigger repairs later.
Why Hearthstone Chimney Co. Is Jericho’s Preferred Chimney Cleaning & Sweep Company
Jericho homeowners tend to stay put. They know their house, they know its history, and they know when a contractor is guessing. We’ve earned repeat business here by documenting every finding with photos and a plain-English verdict - no jargon, no upsell, just what we saw and what it means.
Our Chimney Cleaning & Sweep team dispatches from our New York City office, with crews covering Jericho regularly. We’ve worked on split-levels near the Wheatley School, colonials along South Marginal Road, and the newer builds clustered near the Jericho Turnpike corridor. That range matters. A technician who has only seen one era of construction misses problems that cross decades.
Russell Haines built this company on the K.E.Y.S. code - Krafted right, Every time, Your home first, Standing behind it. The 90-Day Done Right Promise backs every job in writing. If it’s not right, we make it right. No paperwork chase, no arguing. After 42 years in business, we plan to be answering calls in Jericho thirty years from now. That changes how you treat people.
Calls come to a live person, 24 hours a day. Background-checked, uniformed technicians arrive when scheduled. Most jobs finish in one visit. The estimate number matches the invoice number.
Our Chimney Cleaning & Sweep Services in Jericho
Level 1 Inspection
The Level 1 inspection is the baseline for every Jericho chimney we touch. We examine readily accessible portions of the appliance and flue, check for obstructions and combustible deposits, and verify basic structural soundness. For Jericho’s well-maintained annual customers - often homeowners in the original 1950s-60s developments near Jackson Avenue - this is usually sufficient. But we flag immediately when a Level 2 is warranted. No shortcuts.

Level 2 Inspection
Level 2 camera inspection is where Jericho’s real story unfolds. We run a high-resolution camera the full length of the flue, documenting every crack, spalled tile, and creosote deposit. In Jericho’s post-war housing stock, this often reveals the legacy of oil-to-gas conversions: oversized flue liners left orphaned, condensing moisture corroding terra-cotta from inside, draft problems building quietly for years. The homeowner receives photos they can see and a plain-English verdict they can act on. This is not optional here - it’s the standard for any Jericho home that has converted heating fuel or shows draft issues. We complete most Level 2s in a single visit, with no-hassle upfront pricing agreed before we start.

Creosote Removal
Long Island’s damp winters produce real creosote accumulation, and Jericho’s inland position means chimneys see less drying sun than coastal exposures. First-degree creosote - flaky, sooty, easily brushed - is common with dry hardwoods and hot fires. Third-degree creosote, glazed and tar-like, forms when fires smolder in cold flues or unseasoned wood burns incompletely. It’s the dangerous stuff. It restricts draft, accelerates corrosion in already-stressed liners, and is the fuel of chimney fires. Our technicians use mechanical whips, rotary systems, and controlled chemical treatments where necessary. We match the method to the deposit, not the schedule.

Soot Removal
Soot is the everyday residue of combustion - carbon particles, ash, and minor tar compounds. In Jericho’s factory-built zero-clearance fireplaces (common in teardown-rebuild colonials along the Jericho Turnpike), soot accumulation in the wrong places can damage gaskets and compromise the unit’s listed clearances. These fireplaces look like masonry from the street but clean entirely differently. Misidentification is a real risk. We verify the construction type before selecting tools.

Annual Sweep
The annual sweep is preventive maintenance done right. For Jericho homeowners burning wood regularly - especially in original masonry fireplaces with aging liners - this is non-negotiable. We remove combustible deposits, inspect for freeze-thaw damage to crowns and mortar, and check cap and flashing condition. The appointment includes a written condition report. Done annually, it catches the problems that become expensive repairs. Skipped, it becomes the reason for a 2 AM chimney fire call.

Fireplace Cleaning
Fireplace cleaning addresses the firebox, smoke chamber, and hearth - the visible and semi-visible components. In Jericho’s older homes, smoke chambers are often corbeled brick with rough parging that traps creosote. In newer factory-built units, the chamber is metal and requires careful handling to preserve refractory panels. We clean both correctly.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Jericho
We stock and install professional-grade materials from DuraFlex, HeatShield, Gelco, and Olympia Chimney - brands we specify because they survive real conditions, not because they win bids on price. For Jericho’s relining work, DuraFlex stainless liners handle the condensing exhaust of modern gas appliances in oversized flues. HeatShield resurfacing restores deteriorated smoke chambers without full rebuilds. Gelco and Olympia caps and flashing components resist the corrosion that kills lesser hardware. We keep common sizes on our trucks. Most Jericho jobs need no ordering delay.
Common Chimney Cleaning & Sweep Problems We See in Jericho Homes
- Oversized, orphaned flue liners from oil-to-gas conversions. Jericho’s 1950s-1970s colonials and split-levels were built with masonry chimneys sized for oil-fired boilers. When natural gas arrived, many flues were abandoned in place or incorrectly adapted. The oversized liner creates weak draft, condenses acidic moisture, and corrodes terra-cotta and mortar from the inside. We find this on inspection after inspection.
- Factory-built fireplaces mistaken for masonry. The teardown-rebuild boom along Jericho Turnpike produced large colonials with zero-clearance factory units that resemble traditional fireplaces. Homeowners and some sweeps treat them identically. They’re not. Metal flues, gasket seals, and listed clearances require different protocols. Wrong tools damage thin metal and void warranties.
- Freeze-thaw spalling of older brick and mortar. Jericho’s inland Nassau County position exposes chimneys to hard nor’easter freeze-thaw cycles without coastal moderation. Water enters hairline cracks, expands on freezing, and spalls mortar joints and crown concrete. The damage starts small and accelerates. We flag it on every rooftop inspection.
- Corroded caps and flashing from the underside. Galvanised caps rust from below when water penetrates cracked crowns or failed flashing. The salt air reaches Jericho less directly than South Shore exposures, but the internal moisture route is more common here. Stainless replacement caps from Gelco or Olympia, properly flashed, solve it for good.
Pricing for Chimney Cleaning & Sweep in Jericho, NY
| Service | Typical Range in Jericho |
|---|---|
| Level 1 Inspection & Sweep | $180 - $320 |
| Level 2 Camera Inspection | $250 - $450 |
| Creosote Removal (moderate buildup) | $220 - $380 |
| Heavy Third-Degree Creosote Treatment | $350 - $600 |
| Annual Maintenance Plan (sweep + Level 1) | $160 - $280 |
| Stainless Cap Replacement | $280 - $520 |
| Smoke Chamber Parging (HeatShield) | $800 - $1,400 |
| Stainless Liner Installation (DuraFlex) | $2,200 - $4,500 |
What moves the number: flue height and access, severity of creosote or soot buildup, need for rooftop rigging, and whether the inspection reveals conditions requiring immediate correction. We agree on the full scope and price before starting. The estimate is the invoice. No surprises.
Every estimate is free. Call (934) 348-4832 for yours.
We Also Serve Cities Near Jericho
Our crews cover Jericho and the surrounding towns regularly - Plainview to the east, Syosset to the northeast, Woodbury to the north, and East Norwich to the southeast. Same standards, same live-answer phone, same written guarantee. If you’re near the Jericho border, we’ll tell you straight whether your address falls in our standard dispatch zone or needs a quick check.
Serving Jericho, NY - Our Local Coverage Area
We’re based in the Jericho 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 - Chimney Cleaning & Sweep in Jericho
No. An orphaned oil flue in a converted Jericho home is a hazard, not a maintenance item. The oversized liner creates weak draft, condenses acidic moisture that destroys terra-cotta and mortar, and can allow carbon monoxide into living spaces. It needs proper decommissioning or correct relining to the new appliance. Call (934) 348-4832 - we’ll camera-inspect and show you exactly what we’re seeing.
Check the metal rating plate, usually visible in the firebox or behind the lower louver. Factory-built units carry a UL listing and manufacturer label. The firebox will be metal, not brick, and the flue will be a listed metal chimney, not terra-cotta tile. If you’re uncertain, we’ll identify it during inspection - misidentification leads to improper cleaning and potential damage. Call for a Level 1 and we’ll settle it in minutes.
First-degree creosote is dry, flaky, and brushes away easily - typical of hot, fast fires with seasoned hardwood. Third-degree creosote is glazed, hardened, and tar-like, formed by slow, smoldering burns in cold flues burning unseasoned wood. Jericho’s damp winters keep flues cold longer, promoting the conditions for third-degree buildup. It’s highly combustible, restricts draft, and accelerates liner corrosion. Removal requires mechanical or chemical treatment, not standard brushing. We assess degree during every inspection and price accordingly.
Almost always, yes. A stainless DuraFlex liner installation typically runs $2,200-$4,500 in Jericho, while rebuilding a masonry flue can exceed $6,000-$10,000 and requires extensive scaffolding and permits. Relining preserves the structural chimney while creating a correctly sized, corrosion-resistant vent path. The camera inspection determines whether the existing structure is sound enough to accept a liner. We’ll show you the photos and give you both numbers if both apply.
Galvanised steel caps fail from the underside when water penetrates cracked crowns or compromised flashing - the freeze-thaw damage common in Jericho’s older chimneys attacks first, and the cap rusts second. Salt air is a lesser factor this far inland. The fix is a stainless cap from Gelco or Olympia, properly flashed to a sound crown, not another galvanised replacement. We inspect the crown and flashing before specifying the cap. Call (934) 348-4832 and we’ll sort out whether the cap is the problem or the symptom.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Jericho and Nassau County since 1984.





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