Famco Flue Liner Replacement Nationwide

Famco Flue Liner Replacement: The Alexandria Owner’s Guide

Famco flue liner replacement in Alexandria typically runs $2,400 to $4,100 installed, depending on liner length, diameter, and whether we’re pulling a damaged section or doing a full run from firebox to crown. We stock Famco-compatible stainless steel liner kits on the truck in the most common Alexandria sizes, so most replacements happen same day or next morning. The usual story we hear: you had an inspection, the camera showed a crack or a seam separation, and now your chimney doesn’t draft the way it used to or you’re seeing flue gases where they shouldn’t be.

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Which Famco Models This Applies To

Famco makes flexible stainless steel chimney liners in both smooth-wall and corrugated profiles, and the replacement path depends on which one you’ve got. Most Alexandria homes we see with Famco liners fall into two groups: older 4-inch and 5.5-inch liners tied to gas furnaces and water heaters, or 6-inch liners serving wood stoves and fireplaces. The first thing we do is pull the ID tag or measure the inner diameter with a caliper, because Famco’s sizing runs true to gauge and a 5.5-inch liner will not seat correctly in a 6-inch collar without an adapter that half the installers in Northern Virginia skip. That adapter gap is the single biggest compatibility gotcha on Famco products we encounter.

On the OEM-versus-aftermarket question: Famco’s own replacement sections are solid, but for relining a full chimney in Alexandria we often recommend a DuraFlex or HeatShield system matched to Famco’s diameter rather than forcing a patch. The reason is our climate. Alexandria’s freeze-thaw cycle and coastal humidity put more stress on liner seams than a dry interior market, and a mixed-brand patch job is where we find corrosion six years later at the seam transition. If the liner is under ten years old and the damage is isolated, we’ll match Famco to Famco and leave it alone. If it’s a 15-year-old liner with multiple thin spots, the honest recommendation is a full reline with a documented warranty, not a patch that buys you two seasons.

Signs Your Famco Flue Liner Replacement Is Failing

• Flue gases backing up into the house. A cracked liner lets combustion byproducts escape the flue path and seep through masonry joints. Carbon monoxide detectors going off near the fireplace or furnace room is the most serious version of this and gets addressed the same day.
• Visible rust stains or moisture on the chimney exterior. When a liner seam separates, condensation from the flue gases hits the masonry instead of staying inside the liner. In Alexandria’s humid seasons, that shows up as efflorescence or rust-colored streaks that come back after cleaning.
• Pieces of metal or flaking debris in the firebox. That’s liner material delaminating. Corrugated Famco liner under repeated thermal cycling will sometimes shed small flakes at the bottom of the run before the failure becomes visible on camera.
• Draft problems you didn’t have before. A small crack lowers the stack effect just enough that the fireplace smokes on cold starts or the water heater backdrafts. Owners often blame wet wood or wind direction before the camera shows the liner fault.
• Camera inspection reveals a seam separation or perforation. This is how most Alexandria homeowners find out. The camera doesn’t have an opinion. It just shows you what’s there. And once we can see the gap, we can tell you whether it’s a patch candidate or a full replacement.

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Replacement Cost & What’s Included

Replacement costs in Alexandria break down roughly like this:

• Famco liner section only (4-foot to 8-foot patch): $900 to $1,400 installed
• Full 6-inch stainless reline, one story: $2,400 to $3,200 installed
• Full reline with insulating wrap, two-story or complex flue: $3,300 to $4,100 installed

What drives the range is liner diameter, how much of the run needs replacing, roof access difficulty, and whether the old liner comes out cleanly or fights us. Our price includes the written scope, the liner materials, removal of the failed section, installation, a camera re-scan after the job, and the photo record you keep. Every job is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right. That’s Clause 1 of the Haven Standard, and it’s been how we work in Alexandria since 2009.

DIY or Call Us?

What you can safely check yourself: look for rust streaks on the chimney exterior, inspect the firebox for metal flakes, and note whether your CO detector has alarmed near the appliance. That tells us where to start. What you should not do is attempt a liner patch yourself. Working inside a flue involves confined-space access, high-carbon steel edges, and the real possibility that a partially failed liner lets flue gases into the home while you’re mid-repair. We’ve also seen DIY patches that looked fine from the top but blocked the flue at the smoke chamber, which is how Alexandria homeowners end up with a carbon monoxide problem they installed themselves.

If you’re holding a written estimate from another company, bring it. We offer a free second opinion on any written estimate, and we’ll match line items so you can compare honestly. Call (240) 290-6726 and Corrine Halstead or one of our techs will walk you through what you’re seeing before we ever schedule the truck.

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