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.
DuraFlex Chimney Cleaning in Passaic, NJ | Level Two Chimney Clifton
We provide independent DuraFlex Chimney Cleaning & Sweep - Passaic and inspection across Passaic, NJ. What makes our DuraFlex work here different is the simple fact that most Passaic chimneys were built for coal, not gas or wood. That means a sweep is never just a sweep here. It’s a coal-tar and flood-damage assessment. Call (551) 282-9640 for a written price before any brush touches your flue.
DuraFlex liners hold up well when they’re maintained and when the chimney around them is sound. But in Passaic, the two things that damage liners fastest are coal-tar residue from old fuel conversions and moisture wicking up from flood-prone foundations. We’ve spent years documenting both patterns with a camera before and after every cleaning, because Clause 4 of the Haven Standard requires a documented photo record on every visit. This page is for Passaic homeowners and landlords who want to know what’s actually happening to their DuraFlex liner, not what a generic chimney service page says happens.
Why Passaic Residents Choose Us for DuraFlex Service
Corrine Halstead leads our crew, and she grew up in Queens before putting in years on job sites across the metro area. Her approach is direct: the camera goes down the flue first, the findings get written up, and the written price comes before any work starts. No verbal estimates that shift by the time the invoice appears.
Passaic residents call us because we know DuraFlex liners the way a mechanic who works on the same three car models for years knows those cars. We see how 316Ti and 304 alloys behave after decades inside Passaic’s 1890-1930 flues. We know which sections corrode first, which clamps fail after repeated flooding, and which cleaning methods remove coal-tar glaze without scarring the stainless. Background-checked, uniformed techs show up with a named technician assigned and a text when they’re on the way. The written scope, written price, and written warranty are delivered before anyone starts, not after a tech is already in your home. That’s Haven Standard Clause 1: have it in writing.
We’re an independent DuraFlex service provider. We are not manufacturer-authorized, and we don’t claim to be. What we bring is field experience across Passaic’s row houses and apartment buildings, plus a parts approach that prioritizes what actually works for your liner, not what a factory catalog prefers.
Common DuraFlex Chimney Cleaning Problems We Solve in Passaic

- Coal-tar residue eating through 304 alloy liner walls. Passaic’s pre-war chimneys were engineered for coal. When buildings converted to gas or occasional wood use, they left behind acidic coal tar that behaves nothing like wood creosote. On thinner 304 DuraFlex liners, that tar condenses near the base and creates pinholes over years. We find this pattern on Westervelt Place, in the First Ward, and across the riverward blocks. Our cleaning includes a camera pass specifically looking for base-level pinholes before we ever quote a repair.
- Flood-driven corrosion of stainless clamps and connectors. The Passaic River floods. Repeated inundation wicks moisture into chimney bases, and that moisture attacks the stainless clamps and tee bodies from the outside in. An upper liner can look fine from the roof while the lower connectors flake apart. We inspect the base at ground level before any cleaning or liner work is quoted.
- Ovalization and seam separation in shared multi-flue stacks. Passaic’s attached row houses share chimney stacks serving two, three, or four units. When a neighbor converts a flue to gas or abandons it entirely, the thermal load on the remaining DuraFlex liner changes. Over time, that stress can ovalize the liner and separate seams mid-span. This creates drafting problems that a simple sweep can’t correct.
- Creosote hang-up on ProConnect smooth-wall seams. DuraFlex ProConnect liners have internal weld seams. In old coal flues with irregular brick courses, those seams catch creosote even after a mechanical cleaning. We note this in Passaic’s tight, narrow flues built between 1890 and 1930. The fix is a different brush technique and a follow-up camera check, not a liner replacement.
- Backdrafting into adjacent units from one blocked flue. In a shared stack, one blocked or deteriorated flue can push exhaust back into a neighboring apartment. We treat every Passaic shared-stack cleaning as a multi-unit liability situation. That means checking the entire stack, not just your flue, before we finish.
Before
AfterDuraFlex Service in Passaic: What Local Conditions Mean for Your Equipment
Passaic’s building code requires floodplain-specific mortar and weep-hole detailing for chimney bases in the riverward wards. This rule was written because the Passaic River floods, and when it floods, water wicks up through brick for years afterward. Clifton and Garfield don’t have this requirement. What it means for your DuraFlex liner is that any insert work we quote includes a ground-level masonry audit before a single component is ordered. We check the base mortar, the weep holes, and the brick for spalling and efflorescence. On blocks near the river, we routinely find a split condition: the chimney base is crumbling from chronic water damage while the crown and upper stack look serviceable from the roofline. A standard sweep that only inspects from the roof misses this entirely. We don’t, because Clause 4 of the Haven Standard requires documentation at every elevation, and Corrine’s crew has been writing up Passaic chimneys long enough to know where the damage hides.
DuraFlex Models & Products We Service in Passaic

We clean, inspect, and repair the full DuraFlex lineup: 316Ti Stainless Steel Liners, 304 Stainless Steel Liners, ProConnect Smooth-Wall Liners, and AL29-4C Stainless Steel Liners. For parts, we use genuine DuraFlex components when they’re available: couplings, termination caps, tee bodies, and connectors. When OEM availability lags, we substitute UL-listed al29-4C or 316Ti sections from other manufacturers and disclose the swap in writing before any work proceeds. We stock common DuraFlex components and compatible alternatives locally so Passaic turnaround doesn’t stall waiting on factory shipments. We replace liners when corrosion has compromised more than one-third of the wall thickness. We patch small pinholes only when the surrounding alloy tests sound. That decision is always backed by camera evidence you can see.
DuraFlex Service Pricing in Passaic
Here’s what Passaic homeowners can expect:
- Chimney sweep + Level 2 camera inspection: $249-$399, depending on flue height and access. Includes the documented photo record and written findings.
- Coal-tar glaze removal (beyond standard sweeping): $150-$300, quoted after the camera shows what’s actually on the liner walls.
- Base-level masonry audit (required for liner work in riverward wards): $95-$195, including moisture readings and written spalling assessment.
- DuraFlex liner section replacement: $800-$2,200, depending on liner diameter, run length, and whether we’re replacing a base section or a mid-span. Includes the parts disclosure and a written warranty.
Every quote is written before work starts. Every job includes a photo record when it’s done. If a competitor gives you a written estimate, bring it in, and we’ll give you a free second opinion. Call (551) 282-9640 to schedule a Passaic inspection and get an exact number for your chimney.
Serving Passaic, NJ - Our Local Coverage Area

We’re based in the Passaic 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 - DuraFlex Chimney Cleaning in Passaic
Because Passaic’s chimneys were built for coal, and coal tar condenses at the base where flue gases cool. That acidic residue eats through 304 alloy faster than standard wood creosote does, and in flood-prone wards, the moisture from the Passaic River accelerates corrosion from the outside at the same time. Clifton and Garfield homes don’t have the same legacy fuel conversion at this scale. If you’re seeing rust stains or crumbling mortar at the base, call (551) 282-9640 for a camera inspection and a written condition report.
Yes. Coal-tar glaze is different from wood creosote, and running a standard wire brush over it can score the stainless and create crevices where future buildup takes hold. We use chemical treatments and gentler mechanical methods designed for stainless liners, then run the camera again to confirm the glaze is gone and the weld seams are clean. If your liner has been cleaned before by a company that didn’t know the difference, we’ll document any existing scoring so you know the condition before we proceed.
Sometimes, but only in specific circumstances. We patch pinholes when the surrounding alloy tests sound and the damage is localized, typically near a connector or a drain tee. If corrosion has compromised more than one-third of the wall thickness, or if the liner has ovalized, we recommend replacement and show you the camera footage that supports that call. Call (551) 282-9640 and we’ll give you a written assessment with photos, either way.
This is the split condition we see all over Passaic’s riverward blocks. The upper liner and crown stay dry and serviceable while flood moisture wicks up from the foundation and destroys the base mortar and brick. The liner clamps and connectors at the base corrode from the outside in. A roofline-only inspection misses it because the damage starts at ground level. Our base masonry audit checks the weep holes, the mortar joints, and the brick condition before we quote any liner work.
Yes. When one flue in a shared stack blocks or gets abandoned, the thermal load shifts to the remaining flues. That can cause overheating, seam separation, and eventually backdrafting into adjacent units. We inspect the entire stack, not just your flue, because in a Passaic row house your liner’s performance depends on what’s happening in the flues around it. Call (551) 282-9640 to schedule a full-stack camera inspection. The written report covers what’s yours, what’s shared, and what needs attention.
Service Areas Near Passaic

We provide DuraFlex cleaning and inspection throughout Passaic and the surrounding area. Our crews regularly work in Clifton, where you’ll find our van near the Athenia neighborhood as often as anywhere, plus Garfield, Paterson, Elmwood Park, and Rutherford. We’re also the team neighbors call for DuraFlex service in Garfield and DuraFlex service in Clifton. Our full Passaic service area covers the riverward wards and the blocks where shared stacks and coal-era flues are the norm. For a broader picture of our DuraFlex sales & service expertise, read more on the brand page.
Book Your DuraFlex Service in Passaic Today
The camera doesn’t guess. Neither do we. If you own a DuraFlex liner in Passaic, the smartest move is to get a documented camera inspection before the next flood season or heating season, whichever comes first. Call (551) 282-9640 and we’ll schedule your inspection, send a text when the tech is on the way, and hand you a written price before any work begins.
Written by Corrine Halstead, Owner at Level Two Chimney Clifton, serving Passaic since 2009.





Before
After
Before
After