Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The Ashburn Owner’s Guide

Famco flue liner replacement in Ashburn typically runs $2,300-$4,800 installed, depending on liner diameter, flue height, and whether the existing crown or cap needs rebuilding. We stock Famco-compatible stainless steel liners on our trucks and complete most replacements in a single visit. If your liner is cracked, separating at a seam, or showing rust-through, the part has already failed and needs replacement before your next burn.

Call (240) 220-9412

Most Ashburn homeowners discover the problem the same way: a sweep finds it during a Level 2 camera inspection, or they notice flue gases backing up into the living space. Corrine Halstead has seen the full range across Ashburn, from 1980s townhome flues in Ashburn Farm to newer builds near One Loudoun whose liners failed early because of moisture trapped between the liner and masonry. “The camera doesn’t guess. Neither do we.”

Which Famco Models This Applies To

Famco manufactures liners in diameters ranging from 4 to 8 inches, in both rigid and flex configurations, across their residential reline product lines. The two most common in Ashburn homes are the Famco Flex Liner (corrugated, stainless, sold for natural gas and oil conversions) and the Famco Rigid Liner (smooth-wall, used in straighter flues and wood-burning applications).

Here’s the compatibility point most people miss: the Famco model number matters less than the liner diameter and the appliance it serves. A gas furnace pulling through a 4-inch liner and a wood stove pulling through a 6-inch liner are different jobs entirely. If you still have the installation tag from the original job, you’ll find the diameter stamped on it. If not, we measure the existing liner during our camera scan and confirm against the appliance’s BTU rating before quoting anything.

OEM vs aftermarket: Genuine Famco flex liners are good stainless, usually 316Ti alloy for corrosion resistance. Quality aftermarket equivalents from DuraFlex and Olympia Chimney meet or exceed the same UL 1777 listing and often ship faster. We install all three and will quote you the option that makes sense for your flue, not whichever one we happen to stock deepest. Level Two Chimney Ashburn is an independent service provider, not affiliated with Famco.

Signs Your Famco Flue Liner Replacement Is Failing

• Rust flakes collecting in the cleanout or on the appliance crown. This is liner material degrading from the inside. Once stainless starts flaking, the liner wall is thin enough that replacement is the only fix.
• Exhaust smell in the house during a burn. A cracked or separated liner lets flue gases leak into the chimney cavity and find their way back into living space. In Ashburn winters, the temperature swing accelerates this separation.
• Visible gaps at liner joints on a camera scan. Famco flex liners are joined at seams, and those seams are usually the first failure point. If our camera shows a gap, we show you the footage on-site.
• Condensation stains on the exterior chimney brick or ceiling drywall near the chase. That’s moisture escaping a compromised liner and soaking the masonry. In Northern Virginia’s freeze-thaw cycles, trapped moisture spalls brick fast.
• Carbon monoxide detector activity near the fireplace or furnace. Treat this as an emergency, regardless of what the liner looks like. Kill the fire source, ventilate, and call us for a camera inspection before you burn again.

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Replacement Cost & What’s Included

Here’s the honest pricing picture for Ashburn, based on what we’ve quoted and installed recently:

The range is driven by flue height, diameter, and whether we’re building a new crown or just re-bedding the cap. The liner itself is often only $600-$1,100 of the total; labor and access account for the rest. What you get with the price: a written scope on the spot, the liner pulled and the new one seated, a camera re-scan after installation showing the full sealed run, photo documentation, and a written warranty covering the work. Per Clause 1 of the Haven Standard, the price is written before anyone starts. No call-for-a-quote games.

DIY or Call Us?

The honest answer: this is not a homeowner-friendly repair. A flue liner is a listed appliance component that sits inside a contained chimney system. If you drop a liner, kink it, or seat it wrong at the appliance collar, you’ve created a carbon monoxide risk you can’t see. This is exactly the kind of job where a confident YouTube tutorial meets a visit from the fire department.

What you can safely do before calling: clear clutter from the firebox, note the appliance model and any liner tag information you can find, and check whether your cap or crown has visible damage. That’s genuinely useful. What we’d ask you not to do is try to pull the old liner yourself, especially if it’s seized with creosote. It’ll tear, leave debris in the flue, and make our camera inspection harder. Call (240) 220-9412 and we’ll book a level 2 camera scan, quote the replacement, and have it scheduled before we leave the driveway.

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