Gelco Flue Liner Replacement Nationwide

Gelco Flue Liner Replacement: The Annapolis Owner’s Guide

We stock Gelco-compatible flue liner replacement parts on our trucks and install them throughout Annapolis, with typical installed prices ranging from $2,400 to $4,800 depending on flue dimensions, liner length, and whether the old liner comes out in one piece or has to be cut out in sections. Most Gelco liner replacements in the Annapolis area are completed in a single day once we have your flue measurements confirmed. Here’s the picture we see most often: a homeowner books a chimney sweep because the fireplace smells or the damper won’t close right, and our camera scan shows a Gelco liner that’s rusted through at the seam, cracked at a bend, or separated at a joint. The part itself failed quietly, over years, and nobody knew because nobody had looked.

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Which Gelco Models This Applies To

Gelco flue liners are manufactured in two primary configurations: rigid stainless steel sections (typically 304 or 316 alloy) and flexible corrugated liners used when the existing flue has offsets or the chimney breast was built with non-standard angles. The rigid sections come in 24-inch lengths with male and female locking ends; the flexible version ships as a continuous coil cut to length on site. What matters for replacement is matching the liner’s inner diameter to the appliance it serves: a wood stove typically requires 6-inch, a fireplace insert 6 or 8-inch, and an oil furnace 5 or 6-inch depending on the burner’s flue collar spec. The compatibility gotcha with Gelco rigids is the locking profile: newer production runs use a deeper seam lock than the pre-2016 series, which means you cannot reliably mix old and new sections from different production years. If the tag on your existing liner is gone, we measure at the appliance collar and at the top termination, then camera the full run to map every joint before quoting anything.

We are an independent service provider, not affiliated with Gelco. When we quote a Gelco flue liner replacement in Annapolis, we price genuine Gelco sections where they’re available and quality aftermarket equivalents where they provide the same alloy spec and a better installed cost. We also stock DuraFlex and HeatShield systems, and we’ll tell you if one of those is a better match for your chimney’s condition and your appliance’s requirements.

Signs Your Gelco Flue Liner Replacement Is Failing

• Rust streaks or flaking metal visible at the flue opening or cleanout door. Annapolis humidity and salt air accelerate corrosion on the liner’s inner wall, especially when the chimney cools and condensation pulls moisture into the metal. Once rust is visible, pinholes are usually close behind.
• A smell like old smoke or sulfur drifting into the room, even when the fireplace isn’t in use. That’s flue gases and creosote vapor finding their way backward through a liner breach or separated joint instead of venting up and out.
• The damper or smoke shelf looks damp, or there’s a whitish mineral deposit on the flue walls. Water is getting past the liner in some location, and in chimneys near the Eastport waterfront this shows up faster because of airborne salt.
• Pieces of the liner, thin metal fragments, or joint sections found in the firebox or at the base of the flue. A rigid liner coming apart at a seam drops metal. That’s not debris from the chimney brick itself; it’s the liner failing.
• The fireplace suddenly drafts worse than it used to, with smoke spilling into the room when the fire gets going. The flue’s effective inner diameter has changed, or a section has shifted, and the chimney can’t move air the way it did. No amount of damper adjustment fixes a compromised liner.

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Replacement Cost & What’s Included

In Annapolis, a Gelco flue liner replacement installed by our crew runs between $2,400 and $4,800. A straightforward 6-inch stainless rigid replacement in a single-story chimney, where the old liner pulls out cleanly, lands near the bottom of that range. A taller two-story flue, an existing liner that has rust-fused to the masonry, a flue with unusual offsets requiring flexible Gelco material, or a clay tile flue that must be broken out before the new liner goes in pushes toward the top. Here’s the line-by-line:

• Gelco liner material (rigid or flex): $28 to $52 per foot, depending on diameter and alloy
• Labor and installation: $1,200 to $2,400, including flue prep and venting connection
• Top plate, rain cap, and termination assembly: $140 to $320
• Flue tile removal or pass-through work (if needed): $400 to $900
• Camera scan and NFPA 211 Level 2 inspection: included on every visit

Every Gelco liner replacement we quote in Annapolis comes with a written price, written scope, and written warranty before a single tool comes off the truck. That’s Clause 1 of the Haven Standard, and it’s been our practice since 2009. If you have a written quote from another chimney company, bring it to us and we’ll give you a second opinion on it at no charge.

DIY or Call Us?

A flue liner replacement is not a weekend project. The liner prevents fire and carbon monoxide from moving through cracks in your chimney masonry into the home. Installing one means working from the roof, breaking out old clay tiles in many Annapolis chimneys, and making connections at the appliance that have to be sealed and verified. If it’s done wrong, the failure isn’t visible from the ground. It’s a fire risk hiding inside brick.

What you can safely do yourself: find the make and model on your appliance’s rating plate, note the flue collar diameter if you can see it, and take photos of the existing liner from the firebox and from the roof termination if you’re comfortable on a ladder. That information makes your phone call quicker and your quote more accurate. The part itself, the measurements, the install, and the verification test after: that’s ours. Call us at (443) 274-4231 and we’ll camera the flue, show you exactly what we’re seeing, and put the price in writing before we touch anything.

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