Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The Rockville Owner’s Guide

If you have a Famco flue liner that’s cracked, rusted through, or separating at the seams, we stock compatible stainless steel replacement liners in the sizes most Rockville homes use, and we can usually have yours swapped out within a week of inspection. An installed Famco-compatible flue liner replacement in Rockville typically runs $1,900 to $3,400 depending on length, diameter, and whether your chimney needs any prep work before the new liner goes in. Most homeowners find out their liner has failed during a sweep or an inspection, not because the fireplace stopped working, but because the camera showed a crack or rust spot they never would have seen from the hearth. The good news: this is a fixable problem, and it’s one we’ve handled in older Rockville homes for years.

Call (240) 716-5865

Which Famco Models This Applies To

Famco makes a range of stainless steel chimney liners, most commonly the rigid and flexible 316L and 304 alloy lines. The two main distinctions are diameter, measured in inches, and whether the liner is smooth-wall rigid or corrugated flexible. The flexible liners are what we see in almost every Rockville masonry chimney, because they snake down through existing flue tile without tearing out brickwork. If you still have the original installation paperwork, the liner diameter is usually stamped right on it. If not, we measure the flue opening and the appliance collar during the estimate, not from a guess over the phone.

One compatibility gotcha worth knowing: a Famco flexible liner is not interchangeable with a rigid Famco section, even in the same diameter. The connectors and locking methods differ. If your existing Famco liner is rigid and you want to switch to flexible to avoid masonry work, the top plate and rain collar usually need to change too. We are an independent chimney service in Rockville, not a Famco dealer or affiliate, which means we do not push a label. We recommend what fits, and we tell you if a quality aftermarket liner from DuraFlex, HeatShield, or Gelco does the same job for less money. Some homeowners like to keep the name that is already in their chimney. That is fine too. We stock both, and we stand behind the install either way.

Signs Your Famco Flue Liner Replacement Is Failing

• Rust streaks or orange staining at the chimney cap or cleanout door. Stainless is not stain-proof forever. Maryland humidity and freeze-thaw cycles work on the seams, and when the protective oxide layer breaks down, water and combustion acids start eating the metal from the outside in.
• A flaky, ash-like residue collecting at the base of the chimney. This is often the inner wall of a liner shedding scale. You will see it before you smell it, and it is a sign the liner is thinning in spots.
• Smoke backing up into the room when the fireplace is running. A liner with a crack or a separated seam can pull room air into the flue and kill the draft. The fire burns, but the smoke does not have a clean path out.
• You can see daylight through a seam when looking up the flue with a flashlight. If you can see it from the bottom, the gap is serious. This is a structural failure, not a cosmetic one.
• Water in the firebox after a heavy rain. Liners do not just carry smoke. They also keep chimney moisture from weeping into the masonry. A cracked liner lets water track down to the smoke shelf and into the firebox.

Replacement Cost & What’s Included

In Rockville, a full Famco-compatible flexible liner replacement, including materials, install, top plate, rain cap, and the labor to pull the old liner and drop the new one, lands between $1,900 and $3,400. Shorter runs, single-story chimneys, and straight flues sit at the lower end. Two-story homes with offsets, older mortar that needs a little attention, or liners that have to be cut out in sections run higher. We do not quote a liner over the phone and then change the number at the door. Wendell Pike comes out, puts the camera up the flue, and gives you a written flat price before a single tool comes off the truck. That price is the price on the invoice. Every Famco replacement liner we install carries the 90-Day Done Right Promise in writing. If it is not right, one call brings us back at no charge.

DIY or Call Us?

You can safely remove the cap and shine a light down to look for obvious rust or separation. You should not drop a new liner yourself unless you have a second pair of hands, a rope-fed cone, and a way to verify the liner is not kinked inside the flue. Steel liners take a set once they kink, and a kinked liner restricts draft and traps creosote. The dangerous part is not the liner itself, it is what you cannot see: carbon monoxide backing into the house because a DIY liner is not seated, sealed, or sized right. We have corrected enough botched liner drops in Twinbrook and around Rockville to know that this job looks easier online than it is. If your Famco liner is failing, call (240) 716-5865 and have us look first. If it does not need doing, we will tell you.

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