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 Fireplace Services in Greenwich: What to Know First
DuraFlex fireplace services in Greenwich run from a $225-$475 service call and cleaning to $2,400-$4,800 for a full liner replacement, depending on what the camera shows. Most DuraFlex repairs are done in a single visit, and we work as an independent DuraFlex service provider - not a factory-authorized shop, which means we choose the fix that actually serves you, not the one that protects a warranty claim. You’ll get a written price before any work starts and a photo record when it’s done.
This page is written for Greenwich homeowners dealing with DuraFlex liners, dampers, fireboxes, or inserts in wood-burning and gas fireplaces. If you have a DuraFlex chimney liner, a DuraFlex cap, or a DuraFlex-installed appliance, call us at (516) 399-5497. Corrine Halstead and the Level Two Chimney Greenwich crew know this product line the way a mechanic knows a specific engine: the quirks, the predictable failures, and what’s worth fixing versus replacing.
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.
How DuraFlex Products Fail - and How We Fix Them
DuraFlex makes solid liners, but every product line has its failure patterns. In Greenwich, with salt air in the winter, wet Nor’easter seasons, and the freeze-thaw cycles that hit coastal Connecticut chimneys harder than inland towns, these patterns show up predictably. Here’s what we actually see:
- DuraFlex 316L alloy liners showing pitting and pinholes at the tee joint. The flex pipe itself holds up, but the tee connection at the base of the chimney is where condensation and creosote puddle. On gas fireplaces, the acidic condensate eats at the lower 18 inches first. We see this on DuraFlex Pro and DuraFlex 316 jobs throughout backcountry Greenwich. The fix is either a section replacement or a full reline, not a patch. A patch buys you one season; we won’t sell you that.
- DuraFlex aluminum liners corroding in gas fireplace applications. Aluminum is cheaper and was common in 1990s and early 2000s Greenwich gas conversions. The problem: aluminum doesn’t hold up to the sulfur byproducts of natural gas in a damp Connecticut flue. We replace these with 316L stainless or 316Ti where the budget allows. DuraFlex’s own aluminum line was honestly never rated for what Greenwich has asked of it.
- DuraFlex caps with the mesh screen clogged from wet creosote frozen and thawed. This is a classic coastal Connecticut issue: moisture makes the creosote sticky, winter freezes it to the mesh, and suddenly the fire draws like it’s suffocating. In Riverside and Old Greenwich, we pull these caps and find the mesh 60-70% blocked. The fix is a cap replacement with a design that sheds water, not just one that catches debris. DuraFlex’s stainless mesh caps are fine; the problem is they need annual cleaning in this climate, and almost nobody does that.
- DuraFlex damper assemblies that warp after 8-10 years of direct flame exposure. The cast frame is fine; the blade warps. When the damper won’t fully close, it becomes a permanent cold-air leak into the house. In Greenwich heating season (mid-October through April), that’s a real loss. We replace just the blade where possible, or install a top-sealing damper above the DuraFlex liner if the whole assembly needs replacing.
- DuraFlex connectors leaking at the appliance collar seam. This is the one that surprises people. The liner itself is sound, but the connector from the liner to the stove or insert has failed. On DuraFlex insert jobs in Greenwich colonials, we find the connector clamp has loosened over years of expansion-cooling cycles. A tightened clamp and a new gasket is often all it needs. A dishonest company would sell you a full reline; we’d rather show you the photo and charge you for a gasket.
Our DuraFlex Fireplace Services Process

Every DuraFlex job in Greenwich follows the same sequence, and it’s the same whether you’re in Cos Cob or mid-country Greenwich:
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Call and book. A live person answers at (516) 399-5497. You’ll get a named technician, their license number, and a text when they’re on the way. No call center, no web form.
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That technician arrives with a camera in hand. Before any work is discussed, the camera goes down the DuraFlex liner. NFPA 211 Level 2 camera scan. You’ll see what we see, in real time.
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The finding comes with a number. We’ll tell you what the camera shows, in plain terms: the creosote class, the liner wall thickness where it’s thin, the exact position of the pinhole or seam failure. Then we hand you a written scope and a written price. Clause 1 of the Haven Standard: it’s in writing before anyone touches a brush.
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The parts decision is yours, with our honest take. OEM DuraFlex parts when warranty matters and the product has years left; quality aftermarket when the OEM part costs more than the fix is worth. We’ll show you both numbers.
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The work, then the test. We’ll do the repair or the clean, fire the appliance, draft-test the flue, and run the camera again. You get the before-and-after photo record. Clause 4 of the Haven Standard: a documented record on every job, running since 2009.
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The 365-Day Done Right Promise kicks in. If something isn’t right, we come back and make it right. We stamp it on every Greenwich job.
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AfterWhat DuraFlex Fireplace Services Costs in Greenwich
Here’s the honest range, Greenwich market prices, not Albany or Danbury prices. No “call for quote.” Here’s the number:
- DuraFlex gas fireplace service and camera scan: $225-$475 depending on appliance type and how much the camera finds.
- DuraFlex wood-burning fireplace cleaning (open hearth, no insert): $195-$310.
- DuraFlex liner section replacement (tee joint or lower 18 inches): $800-$1,500.
- Full DuraFlex liner replacement (316L stainless, all parts and install): $2,400-$4,800 for a typical Greenwich single-flue chimney.
- DuraFlex damper blade replacement: $250-$550.
- Top-sealing damper installation above an existing DuraFlex liner: $750-$1,250.
What moves the price: chimney height and roof pitch (backcountry Greenwich chimneys run taller and steeper than coastal ones), liner condition at the first scan, and whether the firebox needs repair at the same time. The estimate is free, written, and comes before any work starts. Call (516) 399-5497 to book the camera scan and the number.
Why Greenwich Homeowners Call Level Two Chimney Greenwich for DuraFlex Work

Most fireplace companies in Fairfield County can sweep a chimney. Very few can look at a DuraFlex liner and tell you the difference between a tee joint that’s failing and one that’s just dirty. Our techs have worked on DuraFlex products in Greenwich long enough that the failure modes we listed above aren’t guesses; they’re what Corrine Halstead has documented in thousands of camera passes since 2009.
And when a DuraFlex liner genuinely can’t be saved, we won’t trap you into a single-brand replacement. We service and install HeatShield and Gelco systems too, which means you get a real comparison, not a company script. Clause 4 of the Haven Standard means you leave every one of our visits with photos. Clause 1 means the price was in writing before the brush touched the flue. That’s the whole point of our name.
FAQs
No. As an independent DuraFlex service provider, we’re not bound by factory warranty limitations. That cuts both ways: we won’t claim DuraFlex’s warranty one way or the other, and we won’t tell you to replace a part just to preserve a warranty. What we can tell you is that we’ll document everything. Camera footage, written scope, the date, the condition. If your warranty claim ever needs evidence, you’ll have it. That’s Clause 4.
Common DuraFlex components (caps, clamps, tee sections, damper blades) are on our trucks or sourced within 2-3 business days through Haven’s buying network. Full liner kits are 5-7 days. In 90% of Greenwich jobs, the fix is done in one visit. Call (516) 399-5497 to find out where your particular part lands.
If the liner wall is uniformly sound and the failure is isolated (a tee joint, a clamp, a damper blade), repair is the right call. If the camera shows pitting across multiple sections, the liner is 20+ years old, or a previous patch has already failed, replacement is cheaper long-term. We’ll show you the footage and let you decide. The camera doesn’t guess. Neither do we.
Yes. Gas inserts, wood-burning open hearths, DuraFlex liners serving stoves, and DuraFlex caps all run through the exact same process: camera scan, written scope, written price, the work, the photo record, the 365-Day Done Right Promise. Greenwich’s older housing stock means we see every DuraFlex application there is.
Annual inspection, with sweeping based on the camera findings. A DuraFlex liner in a Greenwich wood-burning fireplace used weekly through winter needs sweeping every 1-2 years. Gas fireplaces with DuraFlex liners still need the camera scan annually; the liner can corrode from condensation even when there’s no creosote. We’ll tell you when it’s clean enough to skip the sweep. That’s not a sales line; it’s what the photo shows.
Call (516) 399-5497 to book the camera scan and get the written price before anything else happens.
Written by Corrine Halstead, Owner, Level Two Chimney Greenwich at Level Two Chimney Greenwich, serving Greenwich and nearby areas.





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