Flue relining
Sweep & inspection
Caps & crowns
Masonry repair
Gas fireplace serviceLevel 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 Woodland Hills Owner’s Guide
Replacing an Olympia Chimney flue liner in Woodland Hills typically runs $2,400 to $4,800 installed, depending on the liner diameter, chimney height, and whether the old liner comes out cleanly or fights us on the way. We stock Olympia Chimney-compatible stainless steel liners in the most common sizes and can usually have your replacement scheduled within a few days, not weeks. Most homeowners discover their liner has failed during a routine sweep, when our camera shows hairline cracks, rust-through, or a section that’s separated at a seam. If you’re seeing flaking metal inside the firebox, white staining on the brick exterior, or a fireplace that suddenly drafts like it’s exhausted, the liner is the first place we look.

Here’s the short version of what this page will give you: which Olympia Chimney setups this applies to, what failure actually looks like from inside the flue, what a fair Woodland Hills price includes, and where DIY stops being smart. The long version follows.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures stainless steel chimney systems under a few distinct lines, and the liner compatibility varies between them. The two we see most often on Woodland Hills roofs are the Ventis line (double-wall, insulated stainless) and the Excel line (also stainless, but with different locking geometry and a different insulation system). One is not a drop-in replacement for the other. The locking tabs on Ventis sections will not seat into Excel sections, and forcing that fit is how you end up with a flue that leaks combustion gases into the chase.
Here’s the compatibility gotcha we run into constantly: Olympia Chimney liners are sized by inner diameter, not outer. A “6-inch” Olympia liner measures 6 inches across the inside, which means the outer diameter is closer to 6.75 to 7 inches once the corrugation and insulation wrap are factored in. If you’re measuring an existing hole in your chimney cap or a damaged section on the ground, measure the inside, not the outside. Getting this wrong means ordering a liner that won’t slide into your existing clay tile or chimney chase, and that’s a return trip and a restocking fee nobody wants.
For OEM replacement, you’ll need the model name off the original label (usually a metal tag riveted near the top of the liner or on the appliance adapter). If that tag is gone or illegible, we can identify the line by the locking pattern and corrugation profile. On the aftermarket side, quality equivalents exist for most Olympia Chimney applications, particularly from DuraFlex, whose flexible liners mate cleanly with Olympia Chimney appliance connectors in standard diameters. We’ll walk you through the tradeoff honestly: OEM costs more and matches exactly; a properly sized DuraFlex liner runs less and still carries a real warranty. The decision usually comes down to budget and how original you want the system to stay.
Key Takeaways:
- Ventis and Excel are not interchangeable; we match by locking geometry, not just diameter.
- Measure the inner diameter, never the outer, or the liner won’t fit.
- If the original label is gone, we identify the line by the locking tabs and corrugation profile.
- DuraFlex aftermarket liners work for most Olympia Chimney replacements and cost meaningfully less than OEM.
Styles & brands we work with





Signs Your Olympia Chimney Flue Liner Replacement Is Failing
- Flaking metal or rust-colored debris in the firebox. Stainless steel doesn’t rust in the traditional orange-flake way, but it does corrode near the seams under sustained heat cycling. If you see small metallic shavings or gray-black flakes sitting on the firebox floor, that’s liner material breaking down from the inside, not harmless ash.
- White efflorescence staining on the chimney’s exterior brick. When the liner cracks, moisture from combustion condenses inside the chimney chase and leaches through the masonry. The salt deposits left behind show up as chalky white streaks. In Woodland Hills, we see this most on the west-facing sides of chimneys where winter rain hits first.
- A sudden change in draft, especially a smoky fireplace that used to draw fine. A cracked or separated liner disrupts the thermal column that pushes smoke up and out. The first symptom is usually a faint smoke smell in the room, not a visible cloud. If you smell smoke when the fireplace is still technically burning clean, the liner is letting flue gases escape somewhere in the chase.
- Visible gaps or misalignment at pipe joints. With a flashlight and a phone camera, you can sometimes see where two liner sections have slipped out of alignment. If you can get eyes on the pipe from inside the firebox (looking up past the damper), look for crescent-shaped gaps at the seams. Those are exhaust leaks.
- Condensation dripping inside the fireplace during use. An intact liner keeps flue gases hot until they exit the chimney. A failing liner bleeds heat into the chimney chase, which drops the internal flue temperature low enough for water vapor to condense instead of escaping. Water in the firebox is not a humidity problem; it’s a venting problem.
Replacement Cost & What’s Included
In Woodland Hills, expect to pay $2,400 to $4,800 for a full Olympia Chimney flue liner replacement, installed. A partial replacement (one or two damaged sections, not the full run) lands around $900 to $1,600. Here’s what drives the spread:

- Liner diameter and length. A 6-inch liner for a standard wood-burning fireplace is the cheapest scenario. An 8-inch liner for a larger insert or a tall two-story chimney in the hills above Ventura Boulevard adds material cost fast.
- Access. Steep-pitch roofs in neighborhoods like Valley Circle Estates or the ridges south of the 101 make ladder work slower and riskier. If we need a chimney lift or a second tech for safety, that shows up in the quote, not as a surprise later.
- Old liner condition. Sometimes the damaged liner comes out in a few clean sections. Sometimes it’s fused to the surrounding clay tile with creosote and has to be cut out piece by piece. We won’t know until we open it up, but we’ll tell you what we’re seeing before the price changes.
Every quote includes the liner itself, the top plate and rain cap hardware, removal of the old liner, physical installation, and a camera inspection afterward so you can see the finished product on your phone. Hadley Chimney Woodland Hills is an independent service provider, not affiliated with Olympia Chimney, which means we stock what works best for your specific setup, whether that’s an OEM Olympia section or a properly matched DuraFlex equivalent. Every liner replacement carries our 365-Day Done Right Promise: a written guarantee on the work, and a free second visit if the repair fails. Tell Cory Mitchell what you’re seeing, and he’ll give you a written price before anything gets taken apart.
DIY or Call Us?
You can absolutely inspect a suspect liner yourself. Pull the damper open, stick a phone camera up toward the flue, and take a photo burst with the flash on. If you can see rust bloom, cracked sections, or daylight coming through a seam, that’s enough to justify a service call. What you shouldn’t DIY is the actual replacement. Flue liners run through enclosed chases, and removing a section means working on the roof with the liner under tension, often against flashing and cap hardware. A dropped section inside the chimney doesn’t just damage the new liner, it can crack the clay tile behind it and turn a $1,200 partial repair into a $4,000 chase rebuild. If you’re comfortable on a ladder and want to remove the cap and look down the flue with a flashlight, go for it. But leave the extraction and the re-seating to someone who does it weekly. Call (559) 249-1347 and we’ll do the camera work, give you a written quote, and show you exactly what we found before any work starts.
How much does an Olympia Chimney flue liner replacement cost in Woodland Hills?
A full Olympia Chimney flue liner replacement in Woodland Hills costs $2,400 to $4,800 installed, with partial replacements running $900 to $1,600 depending on how many sections are damaged. The biggest cost drivers are liner diameter (6-inch vs 8-inch), chimney height, roof access difficulty, and whether the old liner comes out cleanly. Call (559) 249-1347 for a written quote; Hadley Chimney Woodland Hills provides flat pricing before any work begins.
See the difference
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After
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AfterHow long does an Olympia Chimney flue liner last?
An Olympia Chimney stainless steel flue liner typically lasts 15 to 25 years under normal Woodland Hills conditions, but coastal-adjacent moisture and heavy seasonal use in the Valley can shorten that to 10 to 15 years if the fireplace is used regularly without annual sweeps. The enemy is not heat, it’s thermal cycling plus moisture. Every heating season causes expansion and contraction; every rain season tests the cap and flashing. If you bought a home with an existing Olympia Chimney system, assume the liner has used up some portion of that window, and get a camera inspection to see where it stands.
Can an Olympia Chimney flue liner be repaired instead of replaced?
Sometimes, if the damage is limited to one or two sections and the surrounding pipe is still structurally sound, a partial section replacement is all you need. What you can’t safely do is patch a liner with sealant or tape. Firebox-rated caulk and high-temp sealant belong at the joints, not across corroded metal. If the liner has rust-through or cracks running lengthwise, the structural integrity is gone, and no compound fixes that. We’ll show you the camera footage so you can see the difference between a repairable seam and a liner that’s done.
Do you stock Olympia Chimney flue liners, or do you have to order them?
We stock Olympia Chimney-compatible stainless steel liners in the most common Woodland Hills diameters (6-inch and 8-inch), plus matching top plates, rain caps, and appliance adapters. If you need an unusual size or a specific OEM Ventis or Excel section, we can usually source it within a week. DuraFlex flexible liners that work with Olympia Chimney appliance connectors are also kept on the truck, so a swap is often a single-visit job. Call (559) 249-1347 with your model number and we’ll tell you what’s on hand before you book.
What happens if the liner fails again after replacement?
If the liner we install fails within 365 days, the 365-Day Done Right Promise covers it. That means a free second visit, a camera inspection to document the failure, and repair or replacement at no additional cost. We don’t consider the job done until the camera shows a continuous, intact flue from firebox to cap. Every liner replacement is backed by this written guarantee, and Hadley Chimney Woodland Hills stands behind it regardless of whether we used an OEM Olympia Chimney section or a matched DuraFlex equivalent.
Written by Cory Mitchell, Owner & Lead Chimney Technician, Hadley Chimney Woodland Hills at Hadley Chimney Woodland Hills, serving Woodland Hills and nearby areas.