Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The New York Owner’s Guide

A Famco flue liner replacement in New York typically runs between $2,800 and $5,600 installed, depending on the liner length, the chimney’s accessibility, and whether we’re pulling an old clay tile flue or sliding a new stainless liner into an open chase. We stock Famco-compatible rigid and flexible stainless liners on the truck for most common diameters, so in many cases we can quote the job, pull the old liner, and have the new one seated the same day. Most owners discover the part has failed during an annual sweep, or after noticing a fine rust-colored dust settling on the firebox floor, or when a CO detector near the fireplace starts acting up.

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Here’s what New Yorkers need to know about Famco flue liner replacement before they spend a dollar.

Key Takeaways

• Famco flue liners are solid, workhorse stainless components, but the pipe joints and the top plate gaskets tend to fail before the liner wall itself does.
• Installed replacement in New York runs $2,800 to $5,600 depending on height, diameter, and whether we need a crane or rooftop rigging.
• We stock Famco-compatible 4-inch through 8-inch liners on the truck, and we can source 10-inch and larger within a day or two.
• You never pay for a new liner on our say-so alone. We show you the camera footage from inside the flue before we write any replacement quote.

Which Famco Models This Applies To

Our crew replaces flue liners on Famco sidewall and vertical vent systems, including the Famco VF Series flexible stainless liners common in residential gas and oil conversions across New York, and the rigid sectioned liners used in older masonry chases. The practical difference between the two matters: flexible liners snake down existing clay-tile flues and are the go-to when the old tile is still partially intact. Rigid sections, by contrast, are what we use when the chase is being rebuilt or when local code requires mechanically joined pipe.

Identifying the right replacement means looking at the liner itself, not the appliance. Famco stamps the diameter and wall gauge on the barrel of each rigid section and on the coupling collar of flexible runs. If the stamp is gone, which is common after ten-plus years of heat cycling, we measure the inside diameter and match the alloy. For New York homes, we spec 304 or 316 stainless for natural-gas and oil flues. 316 is the right call in New York’s coastal zones and anywhere the liner sits in a chimney that sees regular condensation, because the molybdenum in the alloy resists pitting from acidic condensate. A thinner 430 liner will be cheaper up front, but we see pinholes in those inside eight years, and replacing a liner twice is never the cheap option.

One compatibility gotcha we see regularly in prewar New York buildings: the Famco VF Series connectors are designed for a positive seal with the corresponding Famco appliance adapter. If the previous installer used a generic adapter and clamped it with a worm gear, the joint often leaks at the seam. We replace the adapter when we do the liner, because a new liner with an old mismatched connector is just a delayed failure.

We are an independent New York chimney service. Ashby Chimney New York is not affiliated with Famco, and we don’t claim to be. What we do is install their components correctly and stand behind the work.

Signs Your Famco Flue Liner Replacement Is Failing

• Rust dust or flaking scale on the firebox floor. Stainless liners are corrosion-resistant, not corrosion-proof. Acidic condensate from gas appliances attacks the liner from the inside, and what you’re seeing is the liner shedding its surface. This means the flue is no longer sealed, even if the hole isn’t visible yet.
• CO detector activity near the fireplace or boiler. A pinhole in a flue liner doesn’t fail like a broken window; it seeps. Combustion gases move from the flue into your wall cavities or living space slowly, and the first reliable evidence is the detector, not your nose.
• Moisture or staining on the ceiling around the chimney chase. In New York’s freeze-thaw winters, condensation inside a failing liner condenses against cold masonry and migrates outward. The water isn’t coming in from the roof; it’s coming from the flue.
• Visible separation at the pipe joints or a loose top plate. Expansion and contraction from New York’s seasonal swings work the mechanical connections loose over time. A top plate lifting off its anchor is a sign the whole run has shifted.
• An odor of oil or gas fumes near the chimney, even when the appliance is off. Failed liners don’t only leak outward; they draw household air into the flue and redistribute it. That faint exhaust smell with no appliance running is the flue giving back what it should be venting out.

Replacement Cost & What’s Included

Here’s the straight math for New York. A typical single-story Famco flue liner replacement on a gas appliance flue runs $2,800 to $3,800 installed. Two-story homes and Brownstone chimneys with roof access complications run $3,800 to $5,600. That range includes the liner material, the appliance adapter, the rain cap and top plate, any minor masonry touch-up around the crown, full cleanup, and a written guarantee on the installation.

What drives the spread is height and access. A 35-foot liner in a Manhattan brownstone requires rigging, a second tech on the roof, and time on the scaffolding. A 15-foot run in a single-family Colonial in Riverdale is a two-hour job with a 28-foot ladder. The liner material itself is the smallest line item on the invoice. The labor, rigging, and time are what you’re paying for. We write the full price before any tool comes off the truck, and the number on the invoice matches the number on the quote. That’s the Kingswell Guarantee, and it’s not a marketing line. It’s the way we’ve worked since 2002.

DIY or Call Us?

Fair question, and the honest answer is that most of the work on a Famco flue liner replacement isn’t something a homeowner should attempt. Pulling a 30-foot stainless liner up through a chimney chase from a New York rooftop means working at height, handling 25 to 40 pounds of metal that wants to swing in the wind, and managing the seal at the top plate so it doesn’t leak water into your house. That’s not a Saturday project; that’s a fall risk and a flood risk rolled into one.

What an owner can safely do is check the visible connections. If you can reach the cleanout at the base of the chimney, run a flashlight up the flue and look for obvious separation or rust trails. Check for staining on the ceiling around the chase. Read the stamp on the liner if you can see it. But if any of the symptoms above are present, the smart move is to have a trained tech put a camera in the flue and show you exactly what’s failing before you spend on a replacement. Nathan Corliss runs our New York crew, and his rule on this is simple: say the price first, put the findings in writing, and let the work speak for itself. Call (315) 644-2982 and we’ll get eyes on the liner.

How long does a Famco flue liner last in New York?

In New York’s climate, a properly installed Famco stainless liner typically lasts 15 to 25 years. Gas appliances run cooler and generate more acidic condensate, which shortens liner life compared to wood-burning use. Oil flues run hotter but also produce sulfur compounds that pit the steel. We see most New York failures at the 18-year mark, and we see them sooner when the liner was undersized or when the appliance adapter leaked from day one. Regular camera inspection during your annual sweep catches thinning before it becomes a pinhole. Call (315) 644-2982 to schedule an inspection and get a straight answer on what’s left in your liner.

Can a Famco flue liner be repaired instead of replaced?

It depends on where the damage is and what caused it. A failed top plate gasket or a loose connector at the appliance adapter can often be corrected without pulling the liner. Pinholes in the liner wall or separation at the pipe joints cannot be effectively patched; a patch on a stainless flue liner is a temporary fix that fails again, because the surrounding metal is already compromised from the same corrosion. We recommend replacement when the liner wall shows multiple pits or any through-hole. If you want a second opinion we understand; we’ll show you the camera footage and let you decide. Call (315) 644-2982 if you’d like us to take a look.

How long does a Famco flue liner replacement take?

A standard single-story Famco liner swap takes one visit, usually four to six hours from setup to final seal test. Two-story and Brownstone replacements run six to eight hours, sometimes spread across a second visit if the chimney chase requires masonry preparation. We book a firm arrival window, we bring the liner in the truck, and we don’t leave until the connection is sealed and the smoke test passes. Call (315) 644-2982 and we’ll give you a written estimate for how long your specific flue will take.

Do you stock Famco flue liners, or do I have to order one?

We stock Famco-compatible flexible and rigid liners in 4-inch, 5.5-inch, 6-inch, and 8-inch diameters on the truck, along with the matching appliance adapters, top plates, and rain caps. Ten-inch and larger runs we source from our supplier and install within two to three days. We also keep parts for other common brands: DuraFlex, HeatShield, and Gelco. If your existing liner is a Famco and you want an exact replacement, we’re set up for that. Call (315) 644-2982 and tell us the diameter or the appliance model, and we’ll confirm what’s on the truck before we schedule.

Written by Nathan Corliss, Owner, Ashby Chimney New York at Ashby Chimney New York, serving New York and nearby areas.