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 Rockville Owner’s Guide
We stock and install Olympia Chimney-compatible flue liner replacements throughout Rockville, with typical installed pricing running $2,850 to $4,600 depending on liner diameter, length, and whether your existing crown needs work at the same time. Most Olympia Chimney liner jobs in Rockville take one day once the liner is on hand, and our trucks carry the common 6-inch and 8-inch stainless kits for same-week scheduling. The call usually starts the same way: a Rockville homeowner notices flaky rust-colored residue at the base of the fireplace, or their gas water heater starts drafting poorly, or a home inspector flagged “flue deterioration, recommend Level 2” on a King Farm colonial. That’s when the camera goes up and we can see exactly which section of the Olympia liner has given out.
The camera doesn’t guess. Neither do we.
Which Olympia Chimney Models This Applies To
Olympia Chimney builds their liners around specific diameter and flex patterns, not always obvious from the outside. We see their 304 and 316L stainless smooth-wall and flexible series most often in Rockville homes built from the 1980s onward, running 5.5-inch, 6-inch, 7-inch, and 8-inch inner diameters. Where owners get tripped up: Olympia’s 316L alloy is meant for oil or gas appliances, not wood-burning fireplaces. If your liner was originally paired with an oil furnace and you’ve since converted to a wood stove in your Rockville basement, that liner may be corroding faster than it should. The alloy matters more than the brand name on the box.
To identify what you have, look at the liner cap or the exposed section at the top of the flue. Olympia stamps some, not all, of their components. If there’s no visible stamp, we measure the inner diameter and check the alloy with a magnet test during the inspection. On the OEM-versus-aftermarket question: Olympia makes solid liner kits, but we also carry DuraFlex and HeatShield equivalents that match or beat the OEM spec for less money. Level Two Chimney Rockville is an independent service provider, not affiliated with Olympia Chimney, so our only loyalty is to getting your Rockville flue safe at an honest price.
Signs Your Olympia Chimney Flue Liner Replacement Is Failing

- Rust-colored flakes falling into the firebox. When a stainless liner starts pitting from years of acidic creosote or condensation, the inner wall sheds. You’ll see it as reddish grit below the damper. Corrine Halstead has pulled liners in Rockville where the inner wall looked like cornflakes.
- Water in the firebox after heavy rain. A cracked liner joint lets rain run down between the liner and the original clay flue. In Rockville’s freeze-thaw winters, water in that gap expands and accelerates liner failure fast.
- Smoke backing up into the room on windy days. A partially collapsed liner reduces draft. The chimney can’t pull effectively, so smoke finds the path of least resistance, which is your living room.
- A faint sulfur or ash smell upstairs, even when the fireplace is cold. Gaps in the liner let combustion gases circulate into wall cavities and find their way up through framing. That’s not a smell to ignore.
- Your carbon monoxide detector near the fireplace trips intermittently. A failed liner in a shared multi-flue chimney can allow CO to backdraft from one flue into another. In Rockville colonials with separate furnace and fireplace flues running side by side, this is a finding we take seriously.
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AfterReplacement Cost & What’s Included
For Rockville homes, an Olympia Chimney-compatible flue liner replacement typically runs $2,850 to $4,600 installed. The spread breaks down predictably:
- Liner kit and components: $850 to $1,400 depending on diameter, length, and alloy (316L for gas or oil, 304 for wood)
- Labor and installation: $1,400 to $2,200 including old liner removal, new liner drop, and top plate and rain cap sealing
- Combination work: Add $350 to $900 if the crown needs parging or the existing top plate needs custom fitting
Every quote includes the camera inspection record, a written price before work starts with scope and warranty details (Haven Standard Clause 1 says so), and the documented photo record on completion (Clause 4, continuous since 2009). We never hand you a verbal quote or “call back Monday” pricing. You see the line items, you see the camera footage, you decide.
DIY or Call Us?

You can safely inspect the outside of your chimney and note rust stains, cracked crown mortar, or a leaning liner cap from the ground. What you shouldn’t do is pull a liner and drop a new one on a Saturday. Flue liner replacement means working on a roof, handling a 20-to-35-foot flexible stainless tube that wants to kink, and sealing the top plate to code. Done wrong, you’ve got an unlined flue drafting carbon monoxide into the house or a liner that slips and crushes itself. We’ve corrected enough DIY liner drops in Rockville to know the pattern: the kit cost less on the internet, and the second installation cost more than the first one should have.
If you’re in Rockville and need an Olympia Chimney flue liner replacement priced honestly and installed by people who show you the proof, call (571) 376-7052.
FAQs
A properly installed 304 stainless liner in a wood-burning Rockville fireplace lasts 15 to 20 years on average; a 316L liner on a gas or oil flue typically lasts 20 to 30 years. Rockville’s humid summers and freeze-thaw winters shorten that for liners exposed to moisture entry through a cracked crown. The camera footage tells us whether your liner is at year 5 or year 25. Call (571) 376-7052 to schedule an inspection and get a written answer.
Small, localized issues around the top few inches can sometimes be addressed with a replacement section or a resized top plate, but a pitted or seam-split liner mid-flue generally warrants full replacement. Patching rust holes in a stainless liner buys time, not safety. We’ll show you the camera images and give you a straight answer on repair versus replace. Call (571) 376-7052 for a free estimate.
Most Olympia Chimney-compatible flue liner replacements in Rockville take one working day once the liner kit is on hand. If the crown also needs work, plan for a second day. We’ll tell you the schedule in writing before the crew arrives.
Our Rockville trucks carry common 6-inch and 8-inch stainless kits, top plates, rain caps, and connectors from Olympia Chimney as well as DuraFlex, HeatShield, and Gelco equivalents. Uncommon diameters or custom lengths typically arrive from our supplier network within a few days. Corrine Halstead has been matching flue liners to Rockville chimneys for years, including the narrow-flue brick colonials near King Farm where the old liners run tight and the creosote loads fast. Call (571) 376-7052 and we’ll confirm what’s in stock for your size.
Contact Level Two Chimney Rockville

If your Olympia Chimney flue liner is showing rust, letting in water, or flagged on an inspection report, call (571) 376-7052 for a free estimate. We’ll put the camera down the flue, show you exactly what’s there, and hand you a written price before any work begins. Background-checked, uniformed technicians. A live person answers 24/7. Proudly serving Rockville and surrounding Montgomery County.
Written by Corrine Halstead, Owner, Level Two Chimney Rockville at Level Two Chimney Rockville, serving Rockville and nearby areas.





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