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 Catonsville Owner’s Guide
We stock and install Famco-compatible flue liner replacement parts for Catonsville homes, with most stainless liner jobs running between $1,850 and $3,400 installed depending on the length, diameter, and whether we’re dealing with a straight drop or offsets. If your liner has failed, we can usually get eyes on it within a day or two and have the replacement in hand the same week. Most homeowners discover the problem one of two ways: a chimney sweep flags it during an inspection, or they notice rust flakes, water in the firebox, or a smell that wasn’t there before. The liner is the part of your chimney that actually contains the fire’s exhaust, so when it goes, everything above and around it starts working harder than it should.
Which Famco Models This Applies To
Famco has made flue liners and chimney components for decades, and we see their products across Catonsville homes built from the 1960s onward. The most common Famco liners we replace in this area are the stainless rigid and flexible liner systems, typically in 4-inch through 8-inch diameters for wood stoves, inserts, and older masonry chimneys converted for gas or oil. If you’re trying to identify what you have, look for a printed label or etched marking on the liner itself near the top connection or inside the cleanout. No label? Measure the inside diameter and note whether the liner is smooth or corrugated; that gets us most of the way there over the phone.
We’re an independent service provider, not affiliated with Famco directly. What that means for you is we’re not tied to a single parts channel. If an OEM Famco liner is the right call for your setup, we’ll get it. If a quality aftermarket equivalent, such as a DuraFlex or HeatShield liner rated for the same flue class, gets you the same performance for less money, we’ll tell you that too. The honest truth: for most Catonsville homes, a UL-listed 316L stainless liner of the correct diameter and gauge will serve you well regardless of whose name is stamped on the tag. Wendell Pike will tell you when the brand matters for your specific appliance and when it doesn’t.
Signs Your Famco Flue Liner Replacement Is Failing
- Rust flakes or staining on the chimney exterior. A stainless liner that’s corroding will shed rust that works its way out through mortar joints, especially on older Catonsville chimneys near the Patapsco Valley where humidity runs high year-round.
- Water in the firebox after rain. If your liner has a crack or separated seam, water follows the path of least resistance straight down into the firebox. This is one of the most common calls we get in spring.
- A smoky smell in the house when the appliance runs. Even tiny gaps in a liner let exhaust escape into the chimney cavity instead of going up and out. That smell is combustion gas finding its way back inside.
- Visible cracks or gaps during an inspection. We run a camera through the flue on every inspection, and we show you the footage. No guesswork, no “trust us on this.” You’ll see exactly what we see.
- Sudden drafting problems. If a stove or insert that ran fine for years suddenly struggles to pull air, the liner may have collapsed or partially blocked. This one is urgent, not something to wait on through another burning season.
Replacement Cost & What’s Included
In Catonsville, a full Famco-compatible flue liner replacement typically lands between $1,850 and $3,400 installed. The range comes down to three things: how many feet of liner you need, what diameter your appliance requires, and how much access work is involved. A straight chimney with a clean chase is the low end. A two-story home with tight clearances, multiple offsets, or a deteriorated crown that needs work while we’re up there lands higher.
Here’s what the number includes when it comes from us: the liner itself, all necessary connectors and termination hardware, removal and disposal of the old liner, and a full camera verification after the job is done. You’ll get the upfront price before a single tool comes off the truck, and the number you hear on the phone is the number on the invoice. Every install is backed by our 90-Day Done Right Promise. If it isn’t right, one call brings Wendell back. No charge, no argument.
DIY or Call Us?
There’s a version of this job a homeowner can do safely, and a version they absolutely should not. Checking your liner for visible damage from the cleanout door or noting water in the firebox is fine. Running a camera or light up from the bottom is fine. Actually swapping a flue liner means working on a roof, often in difficult positions, with a live chimney system beneath you. That’s where it stops being a weekend project.
A flue liner that’s installed wrong will draft poorly, leak exhaust into the house, or fail again in a season or two. The cost of redoing it is always more than getting it right the first time. If you want to check things yourself first, we support that; call us and tell us what you’re seeing, and we’ll give you straight guidance over the phone. If it needs doing, we will do it right. If it does not, we’ll tell you that too. Call (443) 332-7798 and one of us, often Wendell himself, will pick up. Upfront pricing, no trip charge inside the county, and a free second opinion on any written estimate you’ve already got.
FAQs
A properly installed stainless liner in Catonsville will typically hold up for 15 to 25 years, but our humidity, freeze-thaw cycles, and the acidic condensation from gas appliances can shorten that. We see liners fail faster when the chimney cap is damaged or missing, when the liner was undersized, or when the chimney lacked proper insulation. An annual inspection with camera footage is the best way to know where yours stands, and to catch a small problem before it becomes a full replacement. Call (443) 332-7798 to schedule one; estimates are free.
Sometimes, yes. Small isolated cracks or pinholes can often be addressed with a product like HeatShield, which is a specialized flue sealant we install and have used across Catonsville for years. However, if the liner is crimped, collapsed, or rusted through in multiple spots, a patch will not hold and a replacement is the only honest answer. We’ll show you the camera footage and explain which category yours falls into before we recommend spending anything. Call (443) 332-7798 and we’ll set up a look.
Most Famco-compatible liner replacements in Catonsville are completed in a single day. A straight drop with good access runs four to six hours. More complicated installs, like a two-story chimney with tricky offsets or a liner that’s wedged and fighting us on the way out, can stretch into a second day. We’ll give you a real arrival window, call if anything slips, and leave the site swept up and the old liner hauled away. Call (443) 332-7798 for scheduling and an exact quote.
We keep common liner diameters and connectors on the truck, including the sizes most often needed in Catonsville homes, but we order the full kit specific to your chimney once we’ve taken measurements. Nobody guesses a liner size from the curb. We measure, order, then schedule the install, usually inside a week. That means no improvisation on your roof and no “close enough” sizing. Call (443) 332-7798 and we’ll walk you through what your setup needs.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Catonsville and nearby areas.





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