Gelco Flue Liner Replacement Nationwide

Gelco Flue Liner Replacement: The Fort Worth Owner’s Guide

Gelco flue liner replacement in Fort Worth typically runs $1,800 to $3,400 installed, depending on liner length, diameter, and whether we’re doing a straight swap or addressing damage around it. We stock Gelco-compatible liners on our trucks and can usually complete the job in one visit. Most Fort Worth homeowners discover the liner has failed one of two ways: they see flaking metal or rust-colored dust in the firebox, or a chimney sweep flags it during an annual inspection with photos that make the problem obvious before anyone picks up a brush.

Call (682) 900-6393

We’re an independent Fort Worth chimney company, not affiliated with Gelco, but we work with their liner systems regularly because they hold up better than most in North Texas weather. If you’re seeing deterioration and want an honest read on whether it’s urgent or can wait, call (682) 900-6393 and we’ll walk you through what to look for before we even schedule anything.

Which Gelco Models This Applies To

Gelco’s flexible stainless steel liners come in diameters from 4 inches up to 8 inches, and the model number on your original installation paperwork will typically read something like “Gelco AL 6×25” or “Gelco 316L 5.5×35.” The first number after the alloy designation is the diameter, the second is the length. If you don’t have the paperwork, don’t guess: we measure the liner’s interior diameter during the inspection and verify it against the appliance it’s venting. A liner matched to the wrong diameter is a drafting problem waiting to happen, and in Fort Worth’s cold snaps and windy springs, that means smoke rolling back into the living room.

The big decision for Gelco owners is whether to spec an OEM Gelco liner or a quality aftermarket equivalent. We carry both. The aftermarket options we install are 316L stainless, same alloy Gelco uses for their premium line, and they carry equivalent manufacturer warranties. The practical difference is availability: OEM Gelco liners sometimes have a lead time of two to three weeks, while the aftermarket equivalents we keep on the truck match the same specs and go in same-week. We’ll quote you both and let the lead time and your budget decide.

Signs Your Gelco Flue Liner Replacement Is Failing

• Rust-colored flakes or fine metallic dust in the firebox. This is the liner’s interior wall shedding oxidized metal. In Fort Worth’s damp winters, condensation inside the flue accelerates this, especially if the chimney runs through a cold exterior wall.
• A lingering smoke smell in the house hours after the fire goes out. That’s flue gas finding its way through pinholes or open seams instead of venting up. Your Gelco liner’s job is to keep the combustion path sealed, and when it can’t, the smell is the tell.
• Visible sagging, buckling, or separation at the liner joints. Heat cycling over years causes the metal to expand and contract. Gelco liners handle this well, but any liner in a Fort Worth chimney that’s seen fifteen or twenty winters can start to pull apart at the seams.
• Water staining on the ceiling or wall around the chimney chase. A compromised liner lets moisture migrate through the flue and into the surrounding structure. By the time you see the stain, the liner’s been leaking for a while.
• Your gas furnace or water heater draft test fails. If a technician has flagged that your appliances aren’t venting properly and the liner is original to the house, the liner is the first suspect. Older Gelco aluminum liners, in particular, were never rated for high-efficiency gas appliances and corrode from the inside out.

Replacement Cost & What’s Included

In Fort Worth, expect to pay $1,800 to $3,400 for a full Gelco flue liner replacement. The range comes down to four things:

• Liner length and diameter: a 6-inch by 15-foot liner runs less than a 7-inch by 35-foot liner. The taller the flue, the more stainless, the higher the number.
• Access condition: If we can drop the liner from the top and pull it through the cleanout below, the job is straightforward. If your Fort Worth home’s chimney chase or roof pitch makes staging difficult, there’s additional labor and equipment involved.
• Insulation: Code in this region typically calls for insulated liners on exterior chimneys. Insulation wrap or a pour-down mix adds to the material cost but prevents condensation that kills liners early.
• Cleanup and disposal: Removing the old liner and cleaning the flue before the new one goes in is part of every quote. No hidden charges when we arrive.

Every replacement we do includes a written price before work starts, so there’s never a surprise at the door. The job comes with our 365-Day Done Right Promise: if it’s not done right, we make it right, and that includes a free second visit if the repair fails. We also document every step with photos, so you see exactly what the old liner looked like and what the new one looks like in place.

DIY or Call Us?

You can safely inspect a few things yourself: shine a flashlight up from the firebox, look for visible rust flakes, check for any liner sections that appear misaligned, and snap photos of what you find. That’s useful information to have when you call. What you should not do is climb onto a Fort Worth roof and attempt to pull or replace a stainless liner without the right equipment and experience. A 25-foot section of stainless liner is heavy, the top of a flue is a fall hazard, and an improperly sized or poorly connected liner can vent carbon monoxide into your house.

We’d rather show you a photo of the problem than hand you a bill you don’t understand. That’s how Cory Mitchell and the whole Hadley Chimney Fort Worth crew approach every job. If you’re seeing early signs of liner failure or just want a straight answer on how much life is left in yours, call (682) 900-6393. We’ll give you an honest read, a written price if it needs work, and photos either way.

Frequently Asked Questions