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.
Why Flushing Homeowners Choose DuraFlex Chimney Cleaning
We provide independent Duraflex repair in Flushing, including chimney cleaning and inspection service across Flushing, NY, with crews working on these liner systems every week. The difference is how we document the work: a camera goes down every DuraFlex flue before we quote anything, and you get written pricing plus a photo record of what’s actually inside. We are not an authorized DuraFlex dealer or affiliate, which means we call problems as the camera sees them, not as a manufacturer’s rep might prefer. Call (516) 240-9191 to book a DuraFlex cleaning or Level 2 inspection in Flushing.
DuraFlex liners hold up well in Queens when they’re sized correctly and the top assembly stays sealed, and our Bayside Duraflex service teams see the same patterns. Where they fail in Flushing specifically is at the corrugation valleys, the bottom connector, and the rain cap screws on tall attached rowhouses. More on that below.
Why Trust Level Two Chimney Flushing for Your DuraFlex Chimney Cleaning?
Our technicians have pulled, cleaned, and reinstalled enough DuraFlex liners in Flushing to know the difference between a liner that’s structurally sound and one that looks fine from the top but is pitted through at the base. That matters because DuraFlex products fail in predictable places: the corrugated interior collects creosote faster than smooth-wall liners, and the bottom connector corrodes from gas condensate pooling above the appliance. A tech who only sweeps from the top misses what’s happening at the bottom. Our camera doesn’t.
Corrine Halstead runs the Flushing operation. She grew up in Queens, trained at LaGuardia Community College on the diagnostic side of the trade, and has spent nearly two decades working chimneys across the borough, including older attached homes near the Flushing Town Hall district. Her rule is simple: show the customer the footage before quoting anything. That’s why every DuraFlex service we perform includes a documented photo record under Haven Standard Clause 4, a practice we’ve kept running continuously since 2009. The camera doesn’t negotiate - it just shows you what’s there.
We carry DuraFlex clamps, tees, caps, and insulation kits for same-day turnaround on most Flushing service calls. And every job comes with a written price, written scope, and written warranty before anyone touches the flue.
Common DuraFlex Chimney Cleaning Problems We Fix in Flushing

Here’s what we actually see when we put a camera down a DuraFlex liner in Flushing, not what the brochure says to look for:
- Packed creosote in corrugation valleys on DuraFlex 316Ti. The corrugated profile adds strength and flexibility, but it also gives sticky creosote a hundred ledges to grab. In Flushing rowhouses with exterior chimney chases, the liner runs cold because it’s exposed on three sides to ambient air, so the creosote sets harder and faster than on an interior flue. We clean these with a poly brush matched to the liner diameter, then camera-verify the valleys are clear.
- Liner kinking at the smoke-shelf offset. On older Flushing homes where a 6-inch DuraFlex 316Ti was forced through a 5.5-inch clay tile throat, the liner ovalizes right at the offset. It passes a visual from the top. It doesn’t pass a camera, because the kinked section now traps creosote and restricts draft every time the fireplace runs. We correct these by replacing the damaged section with properly sized oval-to-round DuraFlex adapters.
- Pinhole corrosion at the bottom connector. Gas appliances produce acidic condensate. When the DuraFlex liner terminates into an appliance connector that wasn’t sealed correctly, condensate pools and eats through the thin stainless at the base. This shows up as rust staining on the draft hood and a faint acrid smell in the basement. We replace the bottom connector with a correct DuraFlex tee and drain assembly, then check the rest of the liner with a camera.
- Backed-out top plate and rain cap screws. Flushing sits beside Flushing Bay, and the salt air plus nor’easter winds work on roof hardware. On tall attached chimneys, the screws holding the DuraFlex top plate and rain cap back out a millimeter at a time. Water tracks down the liner exterior, accelerates mortar erosion, and pinhole corrosion starts on the liner surface itself. We reset top plates, replace stripped screws, and bed the cap in proper silicone every time.
- Wrong liner for the appliance. We regularly find DuraFlex AL (aluminum) installed on a wood-burning fireplace in Flushing because a previous contractor installed whatever was cheap. Aluminum doesn’t hold up to wood-fire temperatures or the acidic creosote environment. DuraFlex AL is for gas only. If we find this, we document it, explain the risk, and quote a correct DuraFlex 316Ti reline if needed.
Before
AfterDuraFlex Parts & Our Repair-vs-Replace Approach
We install genuine DuraFlex components when the part interacts with the flue system: clamps, tees, caps, insulation kits, and connectors. The corrugation pitch and alloy temper are matched by the manufacturer to prevent galvanic corrosion between dissimilar metals, and we don’t gamble with aftermarket parts in a fire-exhaust system. For cosmetic exterior components like chase covers, we use quality 304 stainless aftermarket with the same gauge, because it performs identically without the OEM markup.
Our repair-vs-replace decision comes straight from the camera readings. If the liner wall still shows uniform thickness on the gauge and the failure is isolated to a connector, cap, or seal, we repair the component. If the camera shows pitting through the liner wall itself or deformation that restricts draft, we recommend replacement, and we’ll show you exactly which footage supports that call. Nothing gets recommended in Flushing without photo proof. If you have a written estimate from another company, bring it in. We’ll give you a free second opinion on it. Call (516) 240-9191 to schedule.
Our DuraFlex Service Process - Step by Step

- 1
Diagnosis. You book a Level 2 camera inspection. We send a uniformed tech who texts when they’re on the way. The camera goes down the DuraFlex liner, top to bottom, and we save every frame.
- 2
Written scope and price. Before any work starts, you get a written scope describing exactly what the camera showed, what we recommend, what it costs, and how long it’ll take. No verbal quotes. No surprises after we’ve already started.
- 3
Repair or install. We use genuine DuraFlex components for any flue interior work. For cleaning, we match brush type and diameter to your liner’s exact size, so we’re not wearing down the corrugation peaks with an oversized steel brush.
- 4
Verification and test. After the work, the camera goes back down to document the result. We test draft, check for leaks at the top assembly, and verify the cap is properly seated and sealed.
- 5
Written warranty and photo record. You get a written warranty on the work plus the full photo archive. Haven Standard Clause 4 requires it. Every job, no exceptions.
DuraFlex Products We Service & Install in Flushing
We work on the full DuraFlex family: DuraFlex 316Ti for wood stoves, fireplaces, and oil-to-gas conversions in Flushing’s older rowhouses; DuraFlex Pro for high-efficiency gas and oil appliances; DuraFlex AL for Category I gas appliances; and DuraFlex SW for pellet and corn stoves. We stock common diameter liners, connectors, tees, caps, and insulation kits locally for fast turnaround on Flushing service calls.
We Also Service These Brands

Our crews work across multiple liner systems, so you’re not stuck with a single-brand shop. Beyond DuraFlex, we regularly clean, repair, and install HeatShield and Gelco products, along with materials from Olympia Chimney, Famco, and Copperfield where they’re the right fit.
FAQs - DuraFlex Chimney Cleaning Service in Flushing
Yes. The corrugated interior is cleanable with a poly brush sized to the liner diameter, but it requires more passes than a smooth-wall liner because creosote settles in the valleys, so Chimney Cleaning & Sweep work takes extra care with these systems. We always run a camera after cleaning to verify the valleys are clear. If your DuraFlex liner has been running for a while without cleaning, call (516) 240-9191 for an inspection first so we know what we’re dealing with.
Yes, removing the cap is standard practice for us. The cap has to come off to access the liner interior, and it’s also the moment we check for backed-out screws, worn silicone, or water tracking down the liner exterior. A surprising number of Flushing chimneys have caps that were never properly re-seated after a previous sweep. We reset and seal every cap we remove.
No. DuraFlex AL is aluminum and rated for gas only. In a wood-burning application, temperatures exceed what aluminum safely handles, and acidic creosote accelerates corrosion. If you have DuraFlex AL on a wood fireplace anywhere in Flushing, that’s a replacement situation, not a cleaning situation. We’ll show you the camera evidence and quote a correct 316Ti reline in writing.
We recommend a camera inspection every two years for a DuraFlex liner in Flushing, and annually if it serves a wood-burning appliance; our Duraflex service in Jackson Heights follows the same schedule. The salt air near Flushing Bay and the tight attached chimneys common in this borough mean top assembly hardware loosens and water intrusion starts earlier than in drier, newer construction. For gas-only liners, every two years is usually enough. Call (516) 240-9191 and we’ll get you on the schedule.
Depends on where the damage is and how far it extends. Isolated pinholes at a bottom connector, a failed cap, or a backed-out top plate are repairable with genuine DuraFlex components. Damage that runs along the liner wall, kinking that restricts draft, or corrosion through the liner itself usually means replacing that section or the full run. The camera decides, and you’ll see the same footage we do before you commit to anything.
A standard DuraFlex chimney cleaning and camera inspection in Flushing typically runs $189 to $329, depending on flue height and creosote classification. A Level 2 inspection alone is $149 to $249. Repairs are quoted separately, in writing, after we see what the camera shows. Call (516) 240-9191 for an exact written quote before any work starts.
Book Your DuraFlex Service in Flushing, NY

Need a DuraFlex liner cleaned, inspected, or repaired in Flushing? We answer the phone 24/7. You’ll get a live person, a written price before anything starts, and a camera-scan record so you can see exactly what’s in your flue. Call (516) 240-9191 to book your DuraFlex service today.
Written by Corrine Halstead, Owner at Level Two Chimney Flushing, serving Flushing since 2009.





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