Olympia Chimney Flue Liner Replacement Nationwide

Olympia Chimney Flue Liner Replacement: The Boulder Owner’s Guide

We stock and install Olympia Chimney-compatible flue liner replacement in Boulder, with typical installed pricing running $2,800-$5,400 depending on liner diameter, height, and whether the clay tile needs extraction. Most Olympia Chimney systems we see in Boulder are stainless steel relines of older masonry flues, and we carry the common diameters from 5″ to 8″ on our trucks for same-day starts when the inspection’s already done. Most Boulder homeowners discover the problem during a routine sweep when our camera pulls back shredded metal, pinhole corrosion at the flex joints, or a liner that’s pulled away from the top plate entirely.

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Which Olympia Chimney Models This Applies To

Olympia Chimney manufactures flexible stainless steel liners in 316Ti and AL29-4C alloys, and we match replacement to the original alloy grade because mixing them voids the warranty and creates a galvanic corrosion risk in Boulder’s freeze-thaw cycling. The model number is stamped on the top plate collar or the manufacturer’s tag near the thimble - look for series prefixes like OCL, OCL-HP, or OCL-AL29. If the tag’s burned off, we measure inner diameter with a flue gauge and check the appliance BTU rating to spec the correct alloy and wall thickness.

We source OEM Olympia Chimney liner through Haven’s buying network, but we also carry DuraFlex and Gelco equivalents when the original spec is discontinued or when a homeowner wants a longer alloy warranty. The aftermarket decision comes down to this: AL29-4C handles condensing gas appliances and costs more upfront, while 316Ti works for solid-fuel and standard gas with a shorter warranty term. We don’t guess which you need. We read the appliance plate and show you the spec sheet before quoting.

Signs Your Olympia Chimney Flue Liner Replacement Is Failing

• White or orange flaking at the liner joints. This is oxidation of the 316Ti alloy accelerated by Boulder’s dry winters and temperature swings. The flakes are metal loss, not surface rust, and each flake means wall thickness you no longer have.
• Water staining on the firebox floor or smoke chamber walls. A liner that’s separated at the top plate lets condensation run down the flue’s exterior, bypassing the liner entirely. In Boulder, where we see 300+ freeze-thaw cycles annually, that water expands and contracts behind the liner, accelerating mortar decay.
• Smoke spillage at startup or downdraft odors. When an Olympia Chimney liner collapses inward or develops a longitudinal tear, the flue cross-section shrinks and draft pressure drops. The smell is incomplete combustion products backing into the living space.
• Visible gaps between liner sections when viewed from the cleanout. The flex joints rely on a tight mechanical seal; if the previous installer used generic clamps instead of Olympia’s banding system, thermal cycling works them loose over seasons.
• Your appliance technician flags “flue gas spillage” on a service report. This is the most expensive way to find out, because it usually means the liner has already failed a combustion safety test and the appliance is red-tagged until repair.

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Replacement Cost & What’s Included

What drives the range: liner alloy grade, linear feet from thimble to top plate, whether we’re pulling failed clay tile first, and access difficulty on Boulder’s pitched roofs. Every quote we write in Boulder includes the liner material, labor, disposal, new top plate and cap, and a camera-scan verification after installation - Clause 4 of the Haven Standard requires the photo record, and we don’t close the job without it. Warranty runs 10 years on 316Ti, 15 years on AL29-4C, both backed by our 365-Day Done Right Promise.

DIY or Call Us?

There’s no safe DIY path for flue liner replacement. The work involves working at height on a pitched roof, handling sharp stainless edges inside a confined flue, and properly terminating the liner at a top plate that must maintain correct clearances to combustibles - a measurement error of even an inch puts the framing at risk. What you can do yourself: verify the model tag location, photograph any visible damage from the firebox or cleanout, and check that your appliance’s BTU rating is legible on the manufacturer plate. That information lets us spec the liner before we arrive, which speeds the written estimate.

When we come out, Corrine Halstead or one of our uniformed techs runs the camera first, names what we found, and delivers a written price before any work starts - Haven Standard Clause 1. The camera doesn’t guess. Neither do I. Call (970) 598-0453 to book.

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