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 Hagerstown Owner’s Guide
A Famco flue liner replacement in Hagerstown runs between $1,100 and $3,400 installed, depending on liner length, diameter, and whether the old liner fights you on the way out. We stock Famco-compatible stainless steel liners on the truck and can usually complete the swap the same day, start to finish, once we’ve confirmed the measurements. Most folks call us after noticing one of three things: flaky rust or a visible crack during cleaning, a faint smoky smell in the house when the fire is going, or water staining on the ceiling near the chimney. None of those fix themselves.
Which Famco Models This Applies To
Famco makes a range of stainless steel chimney liners, and the replacement path depends on which one you have. The most common in Hagerstown homes are Famco’s standard 316L flexible liners and their heavier 316Ti alloy liners used for wood stoves and furnace flues. The oval and rectangular liner kits show up in older masonry chimneys where a round liner won’t fit the flue passage. Here’s the gotcha that catches people off guard: Famco liners are sized by inner diameter, not outer diameter, so a “6-inch” liner measures 6 inches across the inside. If you measure the outside of your old liner and buy based on that number, you’ll end up with a liner that’s too large to slide down the chimney. We see that mistake at least twice a season here in Washington County. Check the label plate near the top of the liner or on the appliance collar. If the label is gone, we measure the inside diameter with a caliper before we ever order or pull a part off the truck.
OEM versus aftermarket matters less with flue liners than with appliance parts, honestly. Famco’s 316L liner is a solid mid-grade stainless. There are quality aftermarket equivalents made from the same alloy and thickness, and we’ve installed DuraFlex and Olympia Chimney liners alongside Famco for years without trouble. What you don’t want is a thin-wall knockoff that someone picked up at a discount warehouse. In Maryland’s freeze-thaw winters, a cheap liner expands and contracts until the seam gives out. We’ll tell you plainly which is which when we look at your setup.
Signs Your Famco Flue Liner Replacement Is Failing
- Flaking rust or pinhole light through the liner wall. Stainless steel should not rust. If you see rust blooms or can shine a flashlight through the liner wall and see light from the other side, the liner is at the end of its useful life. That pinhole is where carbon monoxide or flue gases are leaking into your chimney chase or wall cavity.
- A smoky smell in the house, even with the damper open. This is the one that brings most Hagerstown callers to us. When a flue liner cracks or separates, the draft pulls smoke up the chimney, but pressure differences inside the house can push some of that smoke backward through the crack and into the room. Your nose is usually right.
- Water staining on the ceiling or walls near the chimney. Condensation inside a failing liner soaks into the surrounding masonry. By the time it shows up as a brown stain on the drywall, the liner has been compromised for a while. In older Hagerstown homes with interior chimneys, this stain often appears on the second floor first.
- White or chalky deposits on the outside of the liner. That white residue is moisture wicking through the flue gases and condensing on the liner’s exterior. It means the liner isn’t staying hot enough to vent cleanly, often because of a draft issue or a partial blockage. Left alone, it accelerates corrosion from the outside in.
- You can’t get a clean sweep, or creosote builds up fast. A cracked liner has a rough, uneven surface that catches creosote like a burr. If your last sweep didn’t come clean or you’re seeing heavy buildup in under a year, the liner itself may be the problem, not just the firewood.
Replacement Cost & What’s Included
In Hagerstown, you’re looking at $1,100 to $1,800 for a typical single-story liner replacement with straightforward access, and $1,800 to $3,400 when the chimney is taller, the liner is an odd size, or the old liner is cemented in place and needs to be cut out rather than pulled. The materials are the smaller half of the bill. The labor is where the honest money goes: getting up on a Hagerstown roof in February, measuring twice, pulling the old liner without tearing up the crown, and fishing the new one down without kinking it. Every quote we give is a flat price before any work starts. You’ll see the liner cost, the labor, and the total on the invoice, and the number we quote on the phone is the number you’ll pay when the job’s done. We also knock $40 off any repair over $200, and seniors and veterans always get 10% off. The work itself carries our 90-Day Done Right Promise: if something isn’t right, one call brings us back, no charge, no argument. And remember, we’re an independent chimney company in Washington County. We’re not affiliated with Famco, but we stock and install their products because they’ve held up well in Maryland chimneys over the years we’ve been working with them.
DIY or Call Us?
Flue liner replacement is not a weekend project. I’ll say that straight. The work happens on the roof, inside the flue, or both, and it involves heights, ladder work on roofs that are often steep or snow-slicked here in Hagerstown, and line-of-sight issues you can’t solve from the ground. The part itself isn’t high-tension like a garage door spring, but the danger is real: a fall from a second-story roof or a liner section dropped from above can end badly. What you can safely do is read the label plate, measure the inner diameter if you can reach it, and send us photos. That helps us match the replacement before we arrive. But the actual swap, and the inspection to confirm the liner isn’t just one problem in a chimney that has several, that’s a job for someone who has pulled a few hundred liners out of chimneys in his life. If you want to know whether yours needs replacing and what it will cost, call (240) 534-1247 and we will walk you through it.
FAQs
A well-installed Famco 316L liner typically lasts 15 to 25 years in our climate, though burn habits and fuel are the biggest factors. Wood stoves that run hot and burn seasoned hardwood put less corrosive stress on a liner than an open fireplace burning green wood, which creates the cool, damp conditions that eat stainless. If it does not need doing, I will tell you that first.
Small isolated cracks or pinholes can sometimes be addressed with a patch kit, but most Hagerstown chimneys with significant corrosion, separation at the seams, or multiple thin spots need a full replacement. A patch on a liner that’s already compromised just moves the problem down the flue by a year or two. Call (240) 534-1247 and we’ll give you a straight answer on whether yours is a patch candidate or a replacement.
Most single-story liner swaps in Hagerstown take 3 to 5 hours from setup to final safety check. Two-story chimneys or liners that have to be cut out rather than pulled add time. We give you a real arrival window and call if it slips.
We carry the most common Famco-compatible diameters on the truck, including 5.5-inch, 6-inch, and 7-inch round liners in 316L stainless, plus oval liners for tight masonry flues. If yours is an odd size, we order it and typically install within a week. We also keep replacement parts for DuraFlex, HeatShield, and Gelco liners for homes with mixed systems.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Hagerstown and nearby areas.





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