Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The Rockville Owner’s Guide

We stock and install Famco-compatible flue liner replacement parts in Rockville, with most full liner replacements running $1,850 to $3,400 installed depending on flue height, diameter, and whether we’re pulling an old damaged liner or relining a bare masonry chimney. We carry common Famco liner diameters on our trucks, so a standard single-story Rockville colonial liner swap is usually a same-visit job, not a two-trip affair. Most owners discover the problem three ways: a chimney sweep flags it on camera, the water heater or furnace starts drafting poorly, or a rust stain appears on the ceiling near the chimney chase.

Call (571) 376-7052

Famco makes solid, dependable liners. The failure point is rarely the liner body itself; it’s usually the connection at the appliance collar, a corroded tee at the base, or damage from a previous chimney fire that nobody knew happened because nobody looked. The camera tells us which one you’re dealing with before we touch anything.

Which Famco Models This Applies To

Famco flue liners come in rigid and flexible configurations, and the replacement path depends on which one you have. The main distinction: Famco’s rigid stainless liners (common in straight masonry flues and freestanding stove installations) use fixed lengths with locking seams, while their flexible liners (the standard for relining existing chimneys with offsets) use a corrugated 316L stainless design in diameters from 4 inches to 8 inches.

Here’s the compatibility gotcha most Rockville homeowners hit: Famco flexible liners are not universally interchangeable with other brands’ connector kits. The tee, top plate, and rain cap are sized to Famco’s specific corrugation profile. You can save money buying a competitor’s cap, but it won’t seat correctly, and you’ll get water entry or draft leaks at the top. We stock Famco connector components specifically for this reason. When we inspect your existing liner, we look at the label etched near the appliance end, measure the inner diameter with a caliper, and confirm whether you’re on a Famco rigid or flexible system before we quote a single number.

For aftermarket equivalents: there are quality 316L liners from other manufacturers that function well, and we’re honest about when they make sense. If your Flue is a fully straight vertical run, a rigid aftermarket liner is perfectly serviceable. If you have offsets or a tight smoke chamber, stay with Famco or a flexible equivalent engineered for that bend radius. We’ll show you the options and the price difference in writing.

Signs Your Famco Flue Liner Replacement Is Failing

• Rust staining on the ceiling or wall near the chimney. This usually means the liner has a pinhole leak or a failed seam letting condensation and flue gases escape into the chase. By the time you see the stain, the liner has been leaking for a while.
• The water heater or furnace keeps tripping the roll-out switch or drafting poorly. A corroded tee at the base of the liner restricts exhaust flow, so the appliance can’t pull air through properly. You’ll notice intermittent shutdowns, especially on windy days.
• Flakes of metal or scale at the cleanout door. This is liner material degrading from the inside. In Rockville’s humid summers, condensation inside the flue accelerates corrosion, particularly on liners serving gas appliances.
• You smell exhaust or combustion gases in the home, not smoke from a fire. This is the serious one. A compromised liner is a carbon monoxide pathway, and it doesn’t announce itself with visible smoke. If you smell exhaust, stop using the appliance and call us at (571) 376-7052.
• Your last chimney sweep showed you camera footage with cracks, gaps, or a buckled section. We see liners from the 1990s and early 2000s in Rockville split along the seam weld. Once the seam opens, the liner is done. Patching is not a permanent fix.

Before

After

Replacement Cost & What’s Included

In Rockville, a Famco flue liner replacement typically runs $1,850 to $3,400 installed. The spread comes down to three factors: flue height (a two-story colonial runs 25 to 35 feet; a single-story rambler runs 15 to 20), diameter (4-inch furnace liners are less material than 6-inch or 8-inch fireplace liners), and whether we’re also replacing the tee, top plate, and rain cap or just the liner body.

Here’s what we put in writing before we start, every time, no exceptions:

• Parts: The liner itself, connector components, top plate, and cap, itemized by line.
• Labor: Removal of the old liner, installation of the new one, and appliance reconnection.
• The documented record: Camera footage before and after, with photos of the install at every penetration point. That’s Haven Standard Clause 4, and we’ve done it on every job since 2009.
• Warranty: The liner manufacturer’s warranty on materials, plus our 365-Day Done Right Promise: if it’s not done right, we make it right.

No “call for a quote.” The price is on the page, and it’s in writing before we touch your chimney. That’s the entire point of how we work.

DIY or Call Us?

You can safely check a few things yourself: look for rust staining near the chimney chase, check the cleanout door for debris or scale, and note whether your gas appliances are cycling oddly. You should not, under any circumstances, attempt to pull or install a flue liner yourself. This is not a weekend project. You’re working at height on a roof, handling stainless steel with sharp edges, and making a connection that, if done wrong, routes carbon monoxide into your living space. A liner swap done wrong is invisible until it’s dangerous.

What we do that a DIY job can’t: we camera the full run before and after, we verify the appliance draft with a manometer reading once the new liner is in, and we hand you a photo record of every connection point. The camera doesn’t guess. Neither do we. If you’re in Rockville and you suspect a liner problem, call (571) 376-7052 and we’ll schedule the inspection.

FAQs