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.
Olympia Chimney Flue Liner Replacement: The Fairfax Owner’s Guide
If your Olympia Chimney flue liner has failed, you’re looking at an installed replacement cost of roughly $2,400 to $4,800 in Fairfax, depending on liner diameter, height, and whether the old liner comes out cleanly or fights us on the way. We stock Olympia Chimney-compatible liner components and can typically complete the swap in a single day once we’ve sized the flue and confirmed the condition of your existing masonry. Most homeowners discover the problem the way you probably did: a sweep’s camera found cracks, separations, or spalling during an inspection, or a visible piece of liner came down the flue. This page covers what you need to know before you spend a dollar.
Key takeaways:
- Installed replacement in Fairfax typically runs $2,400 to $4,800, with a written quote before work starts.
- Olympia Chimney liners fail most commonly at the seams and at the top course, where Northern Virginia freeze-thaw cycles hit hardest.
- We carry Olympia Chimney-compatible parts on the truck, plus equivalent options from DuraFlex, HeatShield, and Gelco if your flue calls for a different spec.
- Every job includes a camera-scan before and after, and a photo record you keep. That’s Clause 4 of the Haven Standard, in practice since 2009.
Which Olympia Chimney Models This Applies To
Olympia Chimney builds flue liner systems used across a wide range of fireplace, stove, and furnace installations, not just one product line. In Fairfax homes, we most often see their stainless steel rigid and flexible liner kits inside masonry chimneys serving wood stoves, fireplace inserts, and gas appliances converted years ago. If your liner is original to the house or was installed before roughly 2010, it’s almost certainly the 316L alloy series, which Olympia rated for solid-fuel use. Newer installations may use 316Ti or their hybrid systems, which add titanium for better resistance to high-temperature corrosion, particularly on wood stoves that run hot and dirty.
The part you actually need depends on two things you can measure yourself: the inside diameter of the flue (not the outside of the old liner) and the total vertical run from appliance collar to termination cap. Olympia liners are sized in even-inch increments, 4 through 8 inches for most residential work. The compatibility gotcha we run into constantly in Fairfax: an old 6-inch liner that’s been in place 15 years may have swollen or deformed to where a new 6-inch liner won’t seat properly in the same space, and the flue itself may have shifted. You aren’t just ordering a part number. You’re ordering the right part number plus a real measurement of the cavity it has to live in. We measure, we don’t guess.
On OEM versus aftermarket: Olympia Chimney parts are solid, mid-market products. We install them happily when the application is straightforward. That said, a replacement liner is a commodity component in the sense that the real engineering problem is fit and alloy, not logo. We stock Olympia-compatible components and equivalent products from DuraFlex, HeatShield, and Gelco because some flues genuinely need a different wall thickness or flexibility than what Olympia offers in a given diameter. Our policy is simple: we’ll quote the liner that matches your flue and appliance, tell you the brand, and put it in writing. If you have a brand preference, say so and we’ll quote that specific product. No shell games.
One more thing for Fairfax readers: Level Two Chimney Fairfax is an independent service provider. We are not affiliated with Olympia Chimney. We install their parts because they’re readily available and hold up reasonably well in our climate, but when we recommend Olympia, it’s because the measurements support it, not because anyone pays us to.
Signs Your Olympia Chimney Flue Liner Replacement Is Failing

Most liner failures are invisible from the living room. Here’s what actually shows up before a camera confirms it:
- Pieces of metal or flaky debris in the firebox or cleanout. This is the most definitive symptom. When a liner delaminates or a seam separates, small curls of stainless or oxide scale drop down. If you find them, stop burning and call us. The liner is no longer containing the flue gases.
- Water staining on the chase or ceiling near the flue path. A failed liner lets moisture condense inside the chimney structure, and that water eventually finds drywall. What looks like a roof leak is often a liner leak.
- A smell like barbecue or old smoke, even when the fireplace is cold. This is creosote off-gassing through cracks in the liner. On humid Fairfax summer days it gets stronger. The smell means gases that should go up are hanging around instead.
- Visible rust or corrosion at the top course of the liner, seen from the roof or a drone. The top five feet take the worst of the freeze-thaw cycle in Northern Virginia. Water pools at the cap and works its way into the liner seam. If the top looks rough, the rest is usually not far behind.
- A chimney fire that happened years ago, even a small one. Chimney fires can reach 2,000 degrees. That heat can warp a liner, crack the welds at the appliance connection, and leave the whole system compromised even if everything looked fine afterward. If you bought your Fairfax home after 2015 and no one has run a camera since a previous owner’s “minor incident,” assume the liner needs a look.
Before
AfterReplacement Cost & What’s Included
In Fairfax, expect the following installed price ranges for a standard single-story or two-story masonry chimney:
| Scope | Typical Installed Price |
|---|---|
| 6″ x 25′ flexible 316L liner, existing cap reused | $2,400-$3,200 |
| 6″ x 35′ liner with new cap and top plate | $3,000-$4,000 |
| 8″ liner for open fireplace, full run with insulation wrap | $3,400-$4,800 |
| Add: removing a severely deteriorated clay liner first | $400-$800 additional |
The range is driven by liner diameter, height, how much of the old liner has to be broken out before the new one goes in, and whether we’re adding an insulation wrap. Insulation isn’t optional on exterior-chimney installations in Fairfax; uninsulated liners on a cold exterior wall condense creosote faster and draft worse. We include it by default where it’s needed and tell you when it isn’t, because paying for something you don’t need is as bad as not getting something you do.
Every quote includes the liner, connector, cap, labor, the before-and-after camera scan, and a written warranty on workmanship. You get a written price and a written scope before anyone touches a tool. That’s Haven Standard Clause 1, and we’ve never done it any other way. Corrine Halstead has a rule about this: the price on the quote is the price on the invoice. If we find something unexpected during the job, we stop, show you the camera image, and write a new quote. We don’t do surprise upcharges.
DIY or Call Us?

You can safely do the detective work. Go outside and look at the top of the chimney with binoculars. Check the firebox floor and cleanout for metal flakes. Note any odor or staining. Take photos. That’s all useful when you call us. What you shouldn’t do is attempt the liner removal or installation yourself.
This is not like swapping a light fixture. A liner installation means working at height, breaking out the old liner with a winch and cable, guiding flexible stainless through a flue you can’t see through, and making the connection at the appliance collar under the correct tension. Get the tension wrong and the liner kinks or the tee connection flexes and leaks combustion gases into the wall cavity. A liner that leaks isn’t a liner. It’s a metal straw pointed at the inside of your house. That’s a carbon monoxide risk and a fire risk, both of which are entirely avoidable when the work is done by a trained crew with a camera verifying the result. Clause 4 exists for exactly this moment: you get photographic proof the liner is seated correctly before we call it done.
Corrine puts it this way: “The camera tells you what the chimney is; the written quote tells you what the fix costs. Everything else is just conversation.” If you want the conversation to end with a working chimney, call (571) 443-8256 and we’ll get the camera down your flue.
FAQs
A properly installed 316L liner in a Fairfax chimney typically lasts 15 to 20 years, but exterior chimneys on the north side of a house can age faster due to condensation and freeze-thaw cycling in our climate. The HVAC-grade liners and 316Ti alloys can add several years, especially on wood stoves that run hot. The real answer depends on fuel type, weather exposure, and whether the liner was insulated when installed. We can usually see the remaining service life on camera, and we’ll tell you straight if a liner has years left or months.
Sometimes yes, if the damage is limited to a single seam or a short section at the top, a repair band or partial splice can buy a few years, but in most Fairfax homes, by the time the liner fails visibly, the top course and several seams are gone. We’ll show you the camera footage and quote both the repair and the replacement when repair is technically possible, but our honest recommendation on a 15-plus-year-old liner is replacement. Patching a liner near the end of its life usually costs more per year of service than replacing it. Call (571) 443-8256 for a free estimate, and you’ll have a written price for both options.
Most single-story Fairfax replacements are done in one day, including removal of the old liner, installation of the new one, and the before-and-after camera documentation. Two-story chimneys or jobs requiring clay tile removal can stretch to a day and a half. We’ll tell you the expected timeline on your written quote, and we text you when the crew is on the way.
We stock common Olympia Chimney-compatible liner components on the truck, including 6- and 8-inch flexible 316L, top plates, caps, and connectors. If your flue calls for a non-stock size or a specific Olympia series, we order it and have it in hand within a few days. Either way, you’ll know the part brand and spec on your quote before any money changes hands.
Written by Corrine Halstead, Owner, Level Two Chimney Fairfax at Level Two Chimney Fairfax, serving Fairfax and nearby areas.





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