Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The Allentown Owner’s Guide

We stock and install Famco-compatible flue liner replacement in Allentown, with most jobs running between $1,800 and $3,400 installed depending on chimney height, diameter, and whether the existing liner is fully collapsed or just cracked. In most cases, we can inspect, measure, and complete the replacement in a single visit if we have your diameter on the truck. Homeowners usually discover the problem mid-season: a smoky fireplace, water dripping down the flue, or a Level-2 inspection that turns up gaps you cannot see from the hearth.

Call (610) 632-1394

The chimney doesn’t care what it looks like from the street. We check what’s inside.

Which Famco Models This Applies To

Famco has manufactured several liner series over the years, and the part you need depends on when your system was installed. The Famco Flex-Liner stainless series, common in Allentown-area homes built between 1985 and 2005, used 316Ti alloy in diameters from 3 to 8 inches. Newer Famco rigid liner systems, often paired with factory-built fireplaces, require exact collar-to-collar matching because the tee and cap components are proprietary. We also see Famco smooth-wall liners in the larger West End homes near Cedar Creek Park, where builders spec’d bigger fireplaces in the 1990s.

To identify your liner, check the metal tag at the top of the flue where it meets the thimble, or look for stamped markings every few feet along the liner wall. If the tag is corroded off, we measure with a chimney camera and caliper on site. OEM Famco parts are still available through select distributors, though we often recommend compatible 316Ti or 304-grade aftermarket equivalents from our stocked brands when the OEM lead time stretches past burning season. The aftermarket decision comes down to alloy grade and warranty length, not fit. A proper liner is a proper liner if the gauge and alloy match the application.

Signs Your Famco Flue Liner Replacement Is Failing

• Smoke backing up into the room. A cracked or separated Famco liner loses its draft seal, especially in Allentown’s older center-hall colonials where chimney height is marginal to begin with. The smoke has to go somewhere, and the path of least resistance is back through the fireplace opening.
• Water stains on the firebox ceiling or adjacent wall. Gaps in the liner allow condensation and rainwater to reach the masonry interior. In Pennsylvania’s freeze-thaw climate, this accelerates spalling brick and rusted damper hardware you will not notice until the damage is extensive.
• White efflorescence or powdery residue on the flue walls. This indicates acidic flue gases are condensing inside the chimney rather than exhausting through the liner. Famco liners in gas-burning applications are particularly susceptible if the appliance was upsized without matching the liner diameter.
• Chunks of clay tile or metal flakes in the firebox. If your chimney was originally clay-lined and a Famco liner was retrofitted, the old tile can collapse inward and compromise the new liner. We see this in Allentown’s 1920s bungalows near Old Allentown, where original construction was never meant for modern heating loads.
• Carbon monoxide detector alerts near the fireplace. A perforated or disconnected liner can leak exhaust into wall cavities or the living space. This is not a troubleshooting moment; this is a stop-using-it and call day.

Replacement Cost & What’s Included

What moves the price: chimney height (a three-story West Park Victorian runs more material than a ranch in South Allentown), whether we can pull the old liner in one piece or it has collapsed and needs extraction in sections, and if the top plate or flue collar needs replacement too. We agree on the full number before we start. No surprises on the bill. Every liner replacement carries our 90-Day Done Right Promise in writing, and we document the before-and-after with photos you can see.

DIY or Call Us?

There is a short list of things an owner can safely check. Verify the damper opens fully. Look up the flue with a flashlight for obvious gaps or daylight where the liner should be continuous. Check that your cap is present and not clogged with debris. That is about where safe DIY ends.

Liner replacement involves working on a steep or high roof, handling sharp stainless edges, and properly sizing combustion air for the connected appliance. A liner that is too small restricts draft; one that is too large allows creosote buildup in the gap. In Pennsylvania, any liner installation must meet NFPA 211 and local code, and most homeowners’ policies require documentation from a licensed professional for claims related to chimney fire or CO intrusion. We are not affiliated with Famco; we are an independent service provider that stocks their compatible parts and knows how to fit them correctly. If you are weighing the ladder against the phone, call (610) 632-1394 and we will talk through what you are seeing.

FAQs