Flue relining
Sweep & inspection
Caps & crowns
Masonry repair
Gas fireplace serviceLevel 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.
Gelco Flue Liner Replacement: The Fort Lauderdale Owner’s Guide
A Gelco flue liner replacement in Fort Lauderdale typically runs $1,800 to $3,400 installed, depending on the liner diameter, length, and whether the old liner comes out cleanly or fights us on the way up. We stock Gelco-compatible liners and parts on the truck, so most replacements in the Fort Lauderdale area are done in a single visit. Most owners discover the liner has failed during an annual inspection, or when a chimney sweep pulls out chunks of corroded metal instead of soot. If you’re seeing rust flakes in the firebox, smelling something acrid even when the damper’s closed, or noticing your Gelco system isn’t drafting like it used to, the liner is usually the culprit.
Which Gelco Models This Applies To
Gelco liners are built in both rigid and flexible configurations, and the replacement path depends on which one your home has. Rigid Gelco sections (typically 6-, 7-, or 8-inch diameters) are common in straight flues, while the flexible Gelco liner is used when the flue has offsets or a slight bend. The compatibility gotcha most owners run into is this: a 6-inch Gelco liner does not interchange with a 6-inch liner from another manufacturer without adapters, and duct tape is not an adapter. If the label on the liner or the original installer’s paperwork lists a series code (G-series for rigid, GF-series for flexible), bring that to the call – it tells us exactly what we’re matching before we even get on the roof.
On the OEM-versus-aftermarket question: Gelco’s own liners are well-made, and when the rest of the system is intact, we spec the Gelco replacement. But there are cases in Fort Lauderdale, especially in older homes near Victoria Park or Coral Ridge, where the original liner was undersized for the fireplace or a newer furnace was vented through it. In those situations, we may recommend a DuraFlex or HeatShield liner in a corrected diameter instead. We tell you which one and why before any work begins. Flint Chimney Co Fort Lauderdale is an independent service provider, not affiliated with Gelco – we stock and install their products because our technicians trust the build quality, not because of any corporate arrangement.
Styles & brands we work with





Signs Your Gelco Flue Liner Replacement Is Failing
- Rust flakes or metallic debris in the firebox. This is the most common failure signal in Fort Lauderdale’s salt-heavy air. The liner’s inner wall corrodes and sheds, and gravity does the rest.
- An acrid, chemical smell that lingers after the fire’s out. When the liner breaches, gases that should vent up the flue instead seep into the masonry and back into the living space.
- Reduced draft or smoke spilling into the room. A liner with pinholes or a collapsed section can’t maintain the thermal lift that pulls smoke up and out.
- Water streaks or efflorescence on the chimney exterior. A failed liner allows condensation and flue gasses to push moisture through the brick, leaving white mineral stains.
- Visible cracks or gaps at the liner joints during an inspection. Gelco rigid liners typically fail at the seams first. If you can see daylight through a joint with a flashlight, it’s done.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
For a standard Gelco flue liner replacement in Fort Lauderdale, expect $1,800 to $3,400. The spread comes down to three things: liner length (a single-story flue is shorter than a two-story; a two-story home near Las Olas or Rio Vista lands on the upper end), whether the flue requires a flexible liner to navigate offsets, and how much time it takes to remove the failed liner without damaging the surrounding masonry. Every quote we write in Fort Lauderdale includes the liner, all connectors, the top plate, termination cap, and labor to remove the old liner and install the new one.
One thing worth saying plainly: we will not quote a liner replacement over the phone without seeing the flue. The number on the invoice is the number you approved – written before work starts, guaranteed for one full year under our 365-Day Done Right Promise. If the replacement fails within that year, we return at no charge. No exceptions, no fine print.
DIY or Call Us?
What you can safely do is shine a flashlight up the flue from the firebox and look for rust, flaking, or joints that have separated. That’s a useful check, and it costs you nothing. What you should not do is attempt a Gelco liner replacement yourself. This is not a part swap like a furnace filter. Removing a failed liner from a Fort Lauderdale chimney means working at height, often on Spanish tile or barrel-tile roofs that don’t forgive a wrong step. It also means wrestling a length of corrugated metal out of a flue that may still contain creosote and acidic residue – and if the liner binds mid-pull, the wrong move damages the surrounding flue tile and turns a $2,000 job into a $6,000 one.
We handle this work with the right rigging, the right ladder setup, and a clean removal process that doesn’t leave creosote dust on your mantel. Hank Delano and his crew have done this type of job across Fort Lauderdale for years, and the process is the same every time: tell the homeowner what we found, give them a written price, and do the work clean. Call (754) 354-1430 if you want eyes on your flue before the next burn.
FAQs
A Gelco liner in Fort Lauderdale’s coastal climate typically lasts 15 to 20 years, which is on the shorter end compared to inland climates because salt air accelerates corrosion on exposed metal components. Annual inspections are the only way to catch the first signs of failure before it becomes a bigger problem. Call (754) 354-1430 to schedule one.
Small breaches in a Gelco liner can sometimes be patched using a HeatShield resurfacing system, but this is only viable if the liner remains structurally sound through its full length. If corrosion is widespread or the joints have separated, a full replacement is the only repair that will actually hold. We’ll show you the camera footage so you can see exactly what we’re recommending.
Most Gelco flue liner replacements in Fort Lauderdale are completed in four to six hours, and we typically do the entire job in one visit. The removal of the old liner is the variable – if it comes out in one piece, the job moves fast; if it comes out in fragments, it takes longer. We’ll confirm the timeline before work begins.
We stock Gelco-compatible rigid and flexible liners in the most common Fort Lauderdale sizes (6-, 7-, and 8-inch diameters) on our service vehicles, along with connectors and termination caps. For unusual liner lengths or specialty configurations, we order directly from our supply partners, which typically adds two to three business days. Call (754) 354-1430 and we’ll tell you what we have on the truck right now.
Written by Hank Delano, Owner, Flint Chimney Co Fort Lauderdale at Flint Chimney Co Fort Lauderdale, serving Fort Lauderdale and nearby areas.