Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The Long Island Owner’s Guide

If you’ve got a Famco flue liner that’s cracked, corroded, or pulling away at the seams, we can replace it. Top Hat Chimney stocks Famco-compatible liner kits and installs them across Long Island, from Levittown to the North Shore. Most Famco flue liner replacements run between $1,400 and $2,600 installed depending on length, diameter, and how much old liner has to come out first. The way most homeowners find out is not from a scheduled inspection. It’s water in the firebox, a rust stain running down the chimney wall, or an oil burner that keeps tripping its safety switch. One of those three brings it to light almost every time.

Call (516) 968-5380

Here’s the straight version: a failing flue liner is not a “keep an eye on it” situation. The liner is the only thing standing between combustion gases and the framing of your house. When it goes, carbon monoxide and heat get where they shouldn’t. We’ll walk you through exactly what a Famco liner replacement involves, what it costs on Long Island, and when the old one can wait another season.

Which Famco Models This Applies To

Famco makes flue liners and venting components that show up in oil-fired boilers, gas furnaces, and some older fireplaces around Long Island. We mostly run into two groups: the double-wall stainless liners used in oil chimney relining jobs, and the single-wall flexible aluminum liners tucked inside older masonry chimneys for gas appliances.

The part you need depends on what’s already there. Look for the Famco stamp on the liner itself or on the appliance’s venting plate. If the stamp is worn off, measure the inside diameter of the existing liner. Most Long Island oil furnace setups with Famco components run 5 inch to 6 inch interior diameter, though we’ve pulled 4 inch and 7 inch out of older colonials near Huntington and Northport. For fireplaces, Famco parts are less common than brands like DuraFlex and Olympia, but we do see them in houses built in the 1970s and early 80s.

One Famco-specific gotcha worth knowing: their double-wall oil liners have welded seams that fail at the joint before the body of the liner ever rusts through. If you’re replacing one section, you may find the real problem is the connection above or below it. We never quote a Famco replacement until we’ve had eyes on the full run. And a note on parts: aftermarket liner stock from Olympia or HeatShield often matches or beats OEM Famco specs for less money. We’ll quote you both and tell you which one we’d put in our own house.

Top Hat Chimney is an independent service provider. We’re not affiliated with Famco, but we’ve been installing and replacing their liners across Long Island since 1999.

Signs Your Famco Flue Liner Replacement Is Failing

• Rust stains on the chimney exterior or in the firebox. Water is getting into the flue and meeting metal. On Long Island, the salt air near the South Shore accelerates this. The liner’s wall is thinning from the inside out.
• Burner lockout or appliance shutdown. Modern oil and gas units have safety switches that trip when venting drops below spec. A blocked or collapsed Famco liner starves the appliance of draft, and the unit shuts itself down.
• Odor from the chimney when the system is running. Flue gases leaking out of a cracked liner don’t go straight up. They push into the chase or the wall cavity, and you smell it.
• Flaking or peeling paper and paint near the chimney chase. Warm, moist air escaping through a failed liner condenses in the wall. It softens paint and sheetrock before you ever see damage.
• Pieces of liner showing up at the clean-out door or in the firebox. That’s not normal wear. That’s a liner coming apart. You’re seeing pieces of the flue system itself, and the rest of it is still up there.

Wendell Pike will tell you the same thing he tells everyone on Long Island: if it doesn’t need fixing, he’ll tell you that first. But two or more of these signs together usually means the liner has quietly reached the end.

Replacement Cost & What’s Included

Famco flue liner replacement on Long Island generally lands between $1,400 and $2,600 installed. The spread comes down to three things: how many feet of liner you need, what diameter your appliance calls for, and whether the old liner is pulling out cleanly or fighting us every foot of the way.

A typical 25 foot oil flue replacement with Famco-compatible double-wall liner, new top plate, rain cap, and tie-in at the appliance runs around $1,800 to $2,200 in Nassau County. In Suffolk, where we tend to see longer masonry chimneys on older homes, the same job can push toward $2,500 and up. Smaller gas setups with 4 inch single-wall liners start closer to $1,100.

Every quote includes parts, labor, removal of old liner, full video inspection after install, and our 90-Day Done Right Promise in writing. The number you hear before we start is the number on the invoice. No trip charge inside our service county, and there’s a $40 discount on any repair over $200. Seniors and veterans always get 10% off.

DIY or Call Us?

There’s a difference between checking on your liner and replacing your liner. Checking, you can do. If you have a clean-out door at the base of the chimney, open it and look for fallen debris, rust flakes, or broken pieces. If you’ve got an attic chase around the chimney, a flashlight scan for staining or moisture is worth doing once a season.

But pulling and replacing a flue liner is not a weekend project. It means working on a roof or a ladder, handling stainless steel coil that wants to spring open, and getting the connection at the appliance absolutely tight. A bad connection is how carbon monoxide sneaks into a house. This is one of those jobs where the money you save doing it wrong gets spent ten times over fixing what went sideways. Call Wendell and his crew at (516) 968-5380 and we’ll get eyes on it before you spend a dollar.

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