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 Greenwich, CT | Level Two Chimney Greenwich
We provide independent DuraFlex chimney cleaning and liner service across Greenwich, CT, from Old Greenwich to the backcountry. What makes our DuraFlex work different here is the scope: a single Greenwich estate chimney can house four or more DuraFlex liners in one stack, which turns a routine cleaning into a multi-flue camera verification job. We’re not a manufacturer-affiliated shop. We’re an independent service provider using genuine DuraFlex components with a written price before any brush touches your flue. Call (516) 399-5497 to schedule.
Why Greenwich Residents Choose Us for DuraFlex Service
DuraFlex liners behave differently inside a 1920s backcountry stack than they do in a modern single-flue fireplace, and that difference is exactly what we’re built around. Corrine Halstead, our owner, studied building systems technology at New York City College of Technology and has spent years working chimneys across Fairfield and Westchester counties. Her crew has pulled liners from Round Hill Road estates and cleaned coastal flues near Cos Cob long enough to read a firebox before the camera finishes its first pass.
We stock DuraFlex 316L, AL29-4C, Pro, and Smooth Wall components locally, which means faster turnaround when a Greenwich liner needs replacement. Every job gets a documented photo record under Clause 4 of the Haven Standard, a written scope under Clause 1, and the 365-Day Done Right Promise behind it. You’ll see the liner condition on camera before we recommend anything. The camera doesn’t guess. Neither do we.
Common DuraFlex Chimney Cleaning Problems We Solve in Greenwich

- Pitting and perforation in DuraFlex 316L from salt-laden air. Chimneys in Old Greenwich and Riverside sit close enough to Long Island Sound that salt mist works into the flue when rain caps fail. We regularly find 316L liners with corrosion pinholes near the top that a routine sweep would miss. A camera inspection catches it before exhaust gases find a way into the home.
- Kinking or collapse during backcountry rebuilds. When multiple flex liners share one oversized estate stack, pulling new liner through tight bends can crush the corrugations. DuraFlex’s ribbed profile handles a lot, but a badly routed pull damages the wall. We inspect the full liner path on every install and replacement.
- Creosote trapped between liner corrugations. Mild coastal winters encourage short, low-temperature fires that never fully warm the flue. Stage 1 creosote builds fast in the ribs of a corrugated DuraFlex liner, especially in Riverside and Cos Cob homes with intermittent fire use. A smooth-wall liner would shed it. A DuraFlex liner needs more frequent cleaning if you burn that way.
- Sagging and separation at liner joints. A century of settling in Greenwich’s estate chimneys stresses liner connections. We find joints that have pulled apart inside the masonry, creating gas paths between adjacent flues serving different rooms. Multi-flue stacks on North Street and Round Hill Road are where we see this most.
- Mixed-fuel flue configurations gone wrong. Greenwich homeowners have been adding gas log inserts into original wood-burning fireboxes for decades. A gas liner and a wood liner sharing the same stack create different draft, corrosion, and cleaning requirements. We verify each flue’s fuel type before touching any of them.
Before
AfterDuraFlex Service in Greenwich: What Local Conditions Mean for Your Equipment
North of the Merritt Parkway, along corridors like North Street and Round Hill Road, Greenwich’s backcountry estates carry 5 to 8 individual masonry fireplaces per property. Most still run original 1920s-to-1940s clay tile flue liners, many of which are cracked, offset, or gone. When those homes retrofit with DuraFlex, the liner gets pulled through masonry that has settled for nearly a century. That’s where we see the failure pattern nobody in Stamford or Darien deals with at this scale: a single oversized stack with four or more separate DuraFlex liners, each serving a different room, and flue-to-flue separation that has degraded over decades. A Greenwich Chimney Cleaning & Sweep call on one of these properties is not a one-hour job. It’s a half-day diagnostic on one structure alone, because every liner in that stack has to be verified before any can be cleared. Skip one, and you risk cross-flue contamination between a dining room fireplace and a master suite. We pressurize each flue individually to confirm isolation.
DuraFlex Models & Products We Service in Greenwich

We service and install the full DuraFlex residential range: 316L alloy for wood-burning applications, AL29-4C for high-efficiency gas, Pro for demanding installs, and Smooth Wall where a reduced-profile or easier-to-clean liner is needed. When a repair calls for parts, we use genuine DuraFlex clamps, connectors, and caps, never generic aftermarket substitutes that compromise the gas-tight seal. For Greenwich homes still running unlined clay tile flues, we’ll tell you plainly whether a DuraFlex retrofit makes sense or whether the masonry itself needs a rebuild. The recommendation comes from the camera evidence, not from a sales script. Our DuraFlex sales & service team can walk you through the options.
DuraFlex Service Pricing in Greenwich
A standard DuraFlex chimney cleaning in Greenwich runs $195 to $385 depending on flue count, liner condition, and whether the stack is a single-flue coastal home or a four-flue backcountry estate. Multi-flue verification on larger stacks runs higher because each liner gets individually pressurized and camera-scanned. If the inspection turns up liner damage requiring replacement, you’ll get a separate written quote before any work starts. No “call for pricing” games. We name the number on paper, with a written scope and a written warranty under Clause 1 of the Haven Standard. For an exact quote, call (516) 399-5497. Estimates are free.
Serving Greenwich, CT - Our Local Coverage Area

We’re based in the Greenwich 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 Greenwich
Salt-laden air from Long Island Sound accelerates corrosion on 316L alloy, especially in Old Greenwich and Riverside where failed chimney caps let rain and mist sit inside the flue. Interior 316L liner then pits and perforates at a faster rate than identical liner in inland Fairfield County. A camera scan catches it early. If you’re coastal, schedule an inspection before burning season. Call (516) 399-5497 to book.
You don’t, until someone puts a camera down it. A visible smoke draft tells you nothing about pinholes, joint separation, or corrosion hidden inside the masonry. We run an NFPA 211 Level 2 camera inspection on every Greenwich job and give you the photo record. If the liner is compromised, you’ll see it yourself.
Yes, but only after verifying that the flues are actually isolated from each other. On Greenwich’s multi-flue estate stacks, flue-to-flue separation can fail after decades of settling. We pressurize each liner individually before cleaning any of them, so cross-contamination doesn’t get missed. That verification is standard on every backcountry job we do.
Sagging usually comes from liner joints separating as the surrounding masonry settles, which is common in Chimney Repair in Greenwich jobs for pre-war chimneys. The liner may have been installed correctly, but a century of freeze-thaw cycles and structural movement works the joints loose. We find this most often on multi-flue stacks where four or more liners share one chimney.
Original clay tile flues from the 1920s through 1940s are often cracked or offset beyond safe repair. A DuraFlex liner adds a continuous, insulated gas-tight path inside the old flue, which is far less expensive than rebuilding the entire chimney. But if the masonry itself is spalling or structurally compromised, a liner won’t fix it. We show you the camera footage and explain which route makes sense. Call (516) 399-5497 for an honest assessment.
Service Areas Near Greenwich

We serve Greenwich and the surrounding Connecticut and New York communities. Our Greenwich service area coverage runs from the backcountry estates to the coastal neighborhoods. We also handle DuraFlex service in Byram, DuraFlex service in Port Chester, plus Riverside, Cos Cob, and Rye Brook.
Book Your DuraFlex Service in Greenwich Today
Whethe you need a single coastal flue cleaned or a full multi-flue backcountry verification, we’ll show you what the camera sees and put the price in writing before we start. Call (516) 399-5497 to schedule your Greenwich chimney service. Same-week appointments are usually available.
Written by Corrine Halstead, Owner at Level Two Chimney Greenwich, serving Greenwich since 2009.





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