Gelco Flue Liner Replacement Nationwide

Gelco Flue Liner Replacement: The Puyallup Owner’s Guide

We stock and install Gelco-compatible flue liner replacement in Puyallup, with typical installed pricing running $2,800-$4,500 for a standard single-flue system. Most Gelco liner jobs we book are completed in one day, and we carry common diameters and lengths on our trucks for the Pacific Northwest’s prevalent 6-inch and 8-inch clay-to-steel conversions. Homeowners usually discover the problem during a sweep when the camera shows gaps, corrosion pinholes, or delaminated stainless where the original Gelco liner has reached end of life, often after 15-25 years depending on fuel type and moisture exposure.

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Which Gelco Models This Applies To

Gelco produced several liner series over the decades, and the part you need depends on what’s already in your chimney. The Gelco Ultrapro (sometimes marked “UP” on the collar tag) and Gelco Pro-Flex are the two systems we encounter most often in Puyallup homes built between 1985 and 2010, particularly in the South Hill corridor where wood-burning inserts were common upgrades. The Ultrapro used a heavier-gauge 316Ti stainless with a corrugated flex profile; Pro-Flex shifted to a smoother wall for better draft performance but thinner material in early production runs.

To identify yours: look for a stamped metal tag at the top of the liner collar, or have us drop the camera and read the wall pattern. Corrugated equals Ultrapro; smooth with spiral seam equals Pro-Flex. We source replacement through Haven’s buying network from Gelco, Olympia Chimney, and DuraFlex depending on what’s actually compatible with your existing top plate and termination cap. Mixing series collars with mismatched liner wall types is a common ordering mistake we correct on second opinions. Level Two Chimney Puyallup is an independent service provider, not affiliated with Gelco.

Signs Your Gelco Flue Liner Replacement Is Failing

• White or green powder on the liner wall - This is chloride-induced corrosion, accelerated by Puyallup’s marine-influenced air and the temperature swings between damp winters and dry summer spells. The stainless surface is actively degrading; pinholes follow within a season or two.
• Smoke smell in upstairs rooms when the fireplace is cold - A breached liner is allowing exhaust to leak through gaps between the liner and clay flue tiles. In older Puyallup homes with balloon framing, that smoke finds wall cavities and bedroom registers fast.
• Chunks of clay tile in the firebox - The original clay flue liner behind your Gelco insert is spalling, often because the Gelco liner shifted or collapsed slightly, exposing the clay to direct flame impingement. The clay fails first; the Gelco is next.
• Draft that worked fine last year now needs the door cracked open - Liner collapse or delamination has changed the flue diameter or created an internal obstruction. We see this in 6-inch Gelco systems where the corrugated profile has compressed at a bend.
• Water staining on the firebox wall below the damper - The Gelco top termination or storm collar has separated, or the liner itself has split above the roofline. Puyallup’s 38+ inches of annual rainfall finds every gap; the liner replacement includes addressing the water path, not just the metal.

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Replacement Cost & What’s Included

What moves you up or down: flue height (two-story South Hill homes run longer), whether we need to remove an existing insert to access the flue, and if the clay tile is intact enough to leave in place or must be broken out. Every quote is written before work starts, with the scope, the parts list, and the warranty spelled out. The 365-Day Done Right Promise applies to all liner work. Call (253) 323-5667 for an exact quote - estimates are free.

DIY or Call Us?

There’s a safe middle ground here. You can verify your model tag, measure approximate flue height with a tape on the roof, and check your termination cap for obvious corrosion or looseness. What you should not do: attempt to pull a liner yourself. The work involves working on a steep roof with a heavy, flexible stainless coil, proper insulation wrapping to maintain clearances to combustibles, and NFPA 211-compliant top and bottom terminations. A dropped liner or wrong clearance can put a wood-framed chase within ignition range. We bring a two-person crew, the right ladder setup, and the camera to verify the new liner seats correctly before we leave. Camera goes in first. Price gets written down second. Work starts third.

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