Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The Stamford Owner’s Guide

We stock and install Famco-compatible flue liner replacements in Stamford, with most complete liner swaps running between $1,800 and $4,200 installed depending on the liner diameter, length, and what the camera shows us once we’re inside the flue. If you call before 2 p.m. on a weekday, we can usually get a camera down your chimney within two business days. Most Stamford homeowners discover their Famco liner has failed the same way: a chimney sweep flags it during a routine cleaning, or the furnace tech notices rust flakes at the base of the chimney and the detective work starts there.

Call (914) 537-8463

Key takeaways if you’re short on time:

• A failed Famco liner is a carbon monoxide path into the house, not a cosmetic problem. That’s the first reason we treat it seriously.
• We quote a written price before any work starts, and the price includes the camera record before and after.
• Famco doesn’t make service parts for every obsolete size. When the exact spec isn’t available, we match a quality equivalent and document the substitution in writing.

Which Famco Models This Applies To

Famco built flue liners and venting components for a range of residential and light commercial appliances: gas furnaces, boilers, water heaters, and some fireplace inserts sold through supply houses in the Northeast. Stamford homes from the 1980s through the early 2000s commonly carry Famco liners in 4-inch, 5-inch, 6-inch, and occasionally 7-inch diameters, in both rigid and flexible configurations depending on the appliance and the original install. The liner you need depends less on a Famco model number than on three measurements we take before ordering anything: the interior diameter of the existing liner, the total vertical run from appliance collar to chimney cap, and whether the flue has offsets that require flexible rather than rigid sections.

Here’s the compatibility gotcha that matters in Stamford specifically: many older Famco liners were sized for mid-efficiency appliances. If you’ve since upgraded your furnace or boiler to a high-efficiency condensing unit, the old liner diameter may be oversized for the new appliance’s exhaust volume, which causes condensation and premature corrosion. We see this on the older colonials near Cove Island Park where the house predates the liner by decades. We don’t sell you a like-for-like replacement until we’ve confirmed it’s actually the right size for what’s currently burning. If the right Famco spec isn’t available anymore, we’ll tell you that plainly and quote a DuraFlex or HeatShield equivalent that meets or exceeds the original dimensions, with the substitution noted on the written estimate. Level Two Chimney Stamford is an independent service provider and is not affiliated with Famco or any other manufacturer.

Signs Your Famco Flue Liner Replacement Is Failing

• Rust flakes or metallic debris at the chimney base. When a flue liner rots from the inside, the first evidence is usually a rust-colored pile at the cleanout door or the appliance connection. This means the liner wall is shedding metal, which is the failure mode for virtually every steel liner in a Connecticut heating season.
• A sulfur or exhaust smell near the furnace or water heater when it runs. This is exhaust gas finding a way out of the liner before it reaches the chimney cap. Backdrafting into the mechanical room is the direct path for carbon monoxide into living space.
• Visible condensation or water stains on the chimney exterior or interior wall. A compromised liner lets flue gases cool too quickly inside the chimney, creating acidic condensate that soaks into the masonry and eats it from the inside out.
• A furnace or boiler that has been running long but the house feels under-heated. If the flue can’t pull draft efficiently because the liner is kinked, collapsed, or perforated, the burner cycles short, and the appliance never delivers full output.
• The previous homeowner’s chimney sweep notes mention “flue deterioration” or “further evaluation recommended.” That note usually means someone saw liner damage and didn’t want to be the one to say the words “replacement.” We’d be glad to tell you exactly what’s there and what it costs.

Before

After

Replacement Cost & What’s Included

For a Famco flue liner replacement in Stamford, the installed price is generally between $1,800 and $4,200. The range comes down to three variables: the liner’s diameter and length (a 4-inch water heater liner costs less than a 6-inch furnace liner running three stories), whether the existing liner can be pulled without opening up any masonry, and whether any terminal or appliance connector components need replacement at the same time. Here’s how that price is structured:

Everything we replace carries the Haven Standard warranty in writing: a one-year workmanship guarantee as part of our 365-Day Done Right Promise, plus the manufacturer’s warranty on the liner material itself. The written estimate you receive before work starts lists the exact liner brand, diameter, length, and the total line-item price. No one shows up to install anything until you’ve signed that number. This is not an industry norm in Stamford; it’s just how we work.

How Long a Famco Liner Actually Lasts in Stamford

In this climate, a steel flue liner that’s actively used every heating season typically fails between 15 and 25 years. That’s the Connecticut reality: freeze-thaw cycles on the exterior masonry combine with acidic flue gas condensation on the interior, so the liner wall thins from both thermal stress and chemical attack. A liner that services a gas furnace or boiler in a Stamford home that heats from October through April gets less of a break than one in a milder climate. We’re not saying your liner has expired at exactly year 20. We’re saying the camera read on year 18 usually looks worse than the homeowner’s guess. And the camera doesn’t guess. Neither do we.

DIY or Call Us?

Here’s where the split is honest and practical. You can safely check your chimney cleanout door for rust flakes, run your hand along the visible connector pipe for any soft or flaking spots, and inspect for water staining at the base of the chimney. Those are the things we’d do on a first look. What you should not do is pull a live flue liner out of a chimney by yourself. This is exhaust-side venting; if the liner is compromised and you disturb it, you can create a larger breach. And if the appliance is still connected, you’re working next to a gas line that should be shut off and properly reconnected by a licensed tech. A flue liner replacement isn’t like swapping a furnace filter. The risk with a botched liner install isn’t a messy job; it’s that the new liner leaks carbon monoxide into the cavity between the liner and the chimney wall, and you won’t know it until a detector goes off, or worse. We’ll handle the liner, the connectors, the termination, and the photo report. Call us at (914) 537-8463 for a written quote on the specific liner you need.

Frequently Asked Questions

Get a Written Price on Your Famco Flue Liner Replacement

If you’ve got a Famco liner that’s failed or failing, the next step is a camera down the flue and a written price, not a guessing game. Our technicians are background-checked and uniformed, we arrive with a license number on the truck, and the camera footage is yours to see. We’ll walk you through what the lens found, show you the exact liner we’re quoting, and put everything on paper before anyone touches a tool. Call (914) 537-8463 or reach us by text at the same number, and we’ll get a camera on your chimney this week. Corrine Halstead and the crew at Level Two Chimney Stamford have been doing this work across Stamford long enough to know the difference between a liner that needs replacing and one that needs a cleaning; the camera shows which one yours is.

Written by Corrine Halstead, Owner, Level Two Chimney Stamford at Level Two Chimney Stamford, serving Stamford and nearby areas.