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.
Famco Flue Liner Replacement: The New York Owner’s Guide
We stock and install Famco-compatible flue liner replacement in New York, with most installed replacements running $2,100 to $4,900 depending on flue height, liner diameter, and access from the roof or chase. We carry Famco rigid and flex liners on the truck in 4-inch through 11-inch diameters, so the part you need is usually on site the day we arrive. Most New York homeowners discover their Famco liner has failed during a Level 2 camera inspection after noticing something ordinary: a stain on the ceiling near the chimney chase, a persistent smell after rain, or a furnace that started shutting down with an exhaust code. The liner is the one component you never see doing its job until it stops. Call (551) 213-5548 for a written quote before anyone touches your roof.

Key Takeaways
- Installed Famco flue liner replacement in New York typically costs $2,100 to $4,900, written and fixed before work begins.
- We carry 4-inch through 11-inch Famco-compatible liners on the truck, so the swap usually happens in a single visit.
- Camera inspection with photo documentation is included on every job under Haven Standard Clause 4.
- The most common Famco failure we see in New York is not the steel itself but an undersized liner installed for the appliance it now serves.
- If you have a competing written estimate, bring it. Second opinions are free.
Which Famco Models This Applies To
Famco is a legitimate workhorse brand, and we have pulled enough of their liners out of New York chimneys to know exactly where they hold up and where they let go. The replacement work we do applies to Famco rigid stainless liners (the RL series), Famco flexible liners, and the Famco adapters and connectors that join liner sections to an appliance. The most common Famco installations we replace are 316L flex liners in 5.5-inch, 6-inch, and 8-inch diameters, along with older rigid 304 alloy sections in rectangular flues common in prewar New York construction.
Here is the part-matching reality check: a flue liner is not a universal fit part. The liner gauge, diameter, and alloy choice are set by the appliance it vents. A Famco liner sized for a natural gas furnace may be the wrong gauge for a wood-burning fireplace, and that mismatch is exactly what we document on camera during Level 2 inspections. If you are matching a replacement yourself, look at the etched data plate on the existing liner section at the top termination or the appliance collar. And if you cannot find the label because it has burned off? That itself is information. We will match by measuring the flue interior and the appliance flue-outlet size, then write the part number into your quote. We are an independent service provider, not affiliated with Famco, but we stock their product line because in New York, the pricing on quality domestically made liner sections is fair and predictable.
Signs Your Famco Flue Liner Replacement Is Failing

- Exhaust smell in the house, on and off. A pinhole breach in a Famco liner lets combustion gases press into the chase or wall cavity when the appliance runs, and New York temperature swings make this worse: cold liner steel contracts, hot runs expand it, and the cycle fatigues the metal at seam welds. That intermittent “gas-y” smell with no visible source is the classic first symptom.
- Discoloration or staining on walls or ceilings around the chimney chase. Moisture and acidic flue gases escaping through a failed liner condense on drywall and plaster, leaving brown or rust tinted stains that come back after repainting. We see this in single-family homes in Queens and older brownstones near Prospect Park, where chase access is often hidden and leaks go overlooked for years.
- Furnace or boiler starts throwing a pressure or exhaust-air switch code. A deteriorated Famco liner allows outside air to back-draft into the flue path, and modern high efficiency appliances detect that pressure change and lock out. If your HVAC tech keeps resetting the same code, the answer is probably in the flue, not the control board.
- Soot or creosote falling into the cleanout area or on top of the appliance. When a rigid liner section separates at a joint, material that should travel out the flue drops inside the chase instead. If you open the cleanout door and see a pile of black debris that used to be inside the liner, that liner is no longer doing containment.
- Visible rust blooms or flaking on the exterior of a liner section you can see. A failing Famco liner sometimes shows itself at the top termination or in an accessible basement flue run. Rust that flakes in sheets, not surface patina, usually means the stainless has lost its chromium oxide protection. Corrine Halstead’s version of a punchline is that a flue liner rusting within sight is the only chimney problem that actually announces itself politely.
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AfterReplacement Cost & What’s Included
Installed Famco flue liner replacement in New York runs $2,100 to $4,900 in most of the homes we work on, and the price is written before work starts, with a written scope and a written warranty. The range is driven by four factors: total flue height, the diameter of the liner required, (good insurance policies generally have guidance here, but as an independent company, we stock and install quality-compatible material: Famco, DuraFlex, HeatShield, and Gelco. For a Famco replacement, we use Famco sections whenever the original alloy and gauge are still appropriate, and we will show you the data sheet. The labor is the larger line item, because a proper replacement is rarely a simple drop-in: old liner extraction, chase access, top-plate reset, connector fitment, and verification testing all take time. What you get, in writing, before anyone starts: flat price, part numbers, timing, and the warranty length on the liner and the labor. Every replacement includes a documented photo record when we finish, per Clause 4 of the Haven Standard.
DIY or Call Us?

What you can safely do is order the Famco part number from the etched plate, which is read-only detective work. But installing a flue liner is not a handyman job. It involves height work on a New York roof, handling liner sections that can weigh over 100 pounds, making sealed mechanical connections that cannot leak combustion gases into your home, and verifying the entire assembly holds under real appliance pressures. A bad liner connection is how a chimney moves carbon monoxide from the flue into the house. That is not a homeowner-first attempt. We would rather you watch the camera feed with us than open a roof penetration alone. If you want to understand your options before anyone climbs on the roof, call (551) 213-5548. We will walk through what a replacement involves over the phone and send a written quote before you commit to anything.
FAQs
A properly sized 316L Famco flex liner in a New York chimney should give you 15 to 25 years of service in a gas application, and 10 to 15 if it is venting wood. The killer is not the steel but condensation: New York’s cold winters mean flue gases cool faster in under-insulated chases, and acidic condensate eats at any liner. If the liner is already 20 years old and the appliance behind it has been replaced once, the liner is on borrowed time. Call (551) 213-5548 for an exact quote, and we will tell you honestly whether replacement can wait.
Yes, sometimes, if the failure is a separated joint or a pinhole in a single section and the rest of the liner passes a camera inspection. We will repair what is repairable and tell you when it is not. But if the liner is undersized, corroded across multiple sections, or separated in an inaccessible part of the flue, repair is throwing money into a part that has already failed. Bring us a competitor’s written estimate and get a free second opinion.
Most single-family New York homes run one full day for the physical replacement, sometimes two if the old liner is seized in place or the chase needs opening. We include a photo record of the flue after the install, and we will show you the camera pass before we call the job complete. Call (551) 213-5548 for a written estimate and a realistic timeline.
We stock Famco-compatible flex and rigid liners in the diameters New York furnaces and fireplaces actually use: 4, 5.5, 6, 8, and 11 inches, plus connectors and top plates. That means the liner you need is usually on the truck the first visit. If we do not have an odd size or a specific alloy, we tell you exactly how many days the order takes before you commit, and we put that lead time in writing.
Written by Corrine Halstead, Owner, Level Two Chimney New York at Level Two Chimney New York, serving New York and nearby areas.





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