Level 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.
Famco Flue Liner Replacement: The McKinney Owner’s Guide
We stock and install Famco-compatible flue liner replacement in McKinney for $1,800-$3,400 installed, depending on liner diameter, flue height, and whether the existing liner is stainless or terracotta. Most Famco systems we see in Collin County homes were installed between 2005 and 2018, and we’re usually able to match the diameter and pull the replacement same-day from our Haven buying network. You’ll know the liner is failing when you see rust flakes in the firebox, smell smoke in upstairs rooms during a fire, or your sweep shows you gaps in the liner wall on camera.
Which Famco Models This Applies To
Famco manufactured two main liner series that went into North Texas homes: the FL-series flexible stainless liners (sold 2005-2015) and the rigid RL-series used primarily in new construction through 2018. The FL-series is marked with a yellow inspection tag near the top of the flue; the RL-series carries a blue tag with the nominal diameter stamped beside it. We’ve replaced both in McKinney homes from Stonebridge Ranch to the Historic Downtown district.
The compatibility gotcha: Famco FL-series used a proprietary collar connection at the thimble that doesn’t mate cleanly with standard DuraFlex or Olympia adapters without a field-fabricated transition. We keep those transitions in stock, cut and seam-welded to spec, because ordering an OEM Famco collar adds two weeks and costs roughly 40% more for the same 304-grade stainless. For RL-series rigid liners, the aftermarket equivalents from Gelco and HeatShield match thread-for-thread at the tee and cleanout, so we typically quote those unless the homeowner specifically requests Famco OEM.
To identify what you have: look for the tag, measure the inner diameter with a tape (not the outer), and note whether your chimney is straight or has an offset. A straight 6-inch FL-60 runs about $1,800-$2,200 installed in McKinney. An offset RL-80 with a two-story flue height pushes toward $3,000-$3,400 because of the extra labor and the custom transition piece.
Signs Your Famco Flue Liner Replacement Is Failing

- Rust-colored flakes or powder in the firebox. Stainless liners don’t rust through overnight, but the Famco FL-series collar connection was prone to condensation pooling at the thimble. That moisture wicks down and oxidizes from the inside out. By the time you see flakes, the collar is usually paper-thin at the joint.
- Smoke odor in second-floor bedrooms or attic space during a fire. This means combustion gases are escaping through a breach in the liner wall, often at a seam or where the liner has shifted at an offset. In McKinney’s clay-heavy soils, minor foundation movement is common and can stress a rigid RL-series liner at the joints.
- White efflorescence staining the exterior brick below the roofline. The white powder is minerals left behind by water vapor that’s condensing inside a compromised liner and migrating through the masonry. It’s not just cosmetic; it means the liner is no longer isolating moisture from the brick.
- Your sweep flags “gaps visible at the seam” on camera. Famco FL-series used a crimp-lock seam that can work open after years of thermal cycling. The gap may be only a quarter-inch, but that’s enough to let creosote accumulate between the liner and the clay tile, creating a secondary fire hazard you can’t see from below.
- Difficulty starting or maintaining a draft, especially on humid McKinney mornings. A liner with internal scaling or partial collapse has lost its smooth bore. The draft drops, smoke lingers in the firebox, and you end up opening windows to get the fire going. The underlying cause is usually a liner that’s delaminated or corroded to roughness.
Before
AfterReplacement Cost & What’s Included
| Scope | Price Range (McKinney) |
|---|---|
| Straight flue, 6″ diameter, single story | $1,800 - $2,200 |
| Straight flue, 8″ diameter, single story | $2,200 - $2,600 |
| Two-story or offset flue, any diameter | $2,600 - $3,400 |
| OEM Famco collar (vs. aftermarket transition) | Add $280 - $420 |
What drives the range: liner diameter, flue height, number of offsets, and whether we need to remove a damaged liner before pulling the new one. Every quote we write in McKinney includes the NFPA 211 Level 2 camera inspection, the documented photo record under Haven Standard Clause 4, the written scope, and the written warranty. The 365-Day Done Right Promise applies to the installation and the materials both. We source Famco-compatible liners through Haven’s buying network alongside DuraFlex, HeatShield, and Gelco, which keeps the price honest without chasing OEM premiums unless you ask for them.
DIY or Call Us?

There’s a safe middle ground here, and then there’s the point where you need a truck with a ladder rack.
What you can check yourself: verify the tag model and diameter, shine a flashlight up the flue to spot obvious gaps or heavy creosote buildup, and confirm your damper opens fully. That’s it. Everything past that point involves working on a steep roof, handling 25-foot sections of stainless that kink if you look at them wrong, and sealing connections with high-temp silicone in a space you can’t see into.
The real danger isn’t the liner itself; it’s what you don’t know about the condition above the smoke shelf. We’ve found collapsed clay tiles, active bird nests, and separated tee connections on jobs where the homeowner was ready to “just drop a liner in.” Corrine Halstead has seen more than one well-meaning DIY install terminate three feet short of the top because the measurement was taken from the wrong reference point. The camera doesn’t lie, and neither does the written quote. Call (469) 429-2623 and we’ll show you what we’re looking at before you commit to anything.
FAQs
A properly installed stainless Famco liner should last 15-25 years, but we’ve replaced FL-series units in McKinney after 10 years when the collar connection failed prematurely due to condensation cycling. The clay-heavy soils here shift more than limestone bedrock areas, which stresses rigid liners at the joints. Annual inspection catches the wear before it becomes a breach. Call (469) 429-2623 for an exact condition check - estimates are free.
Minor seam gaps in an otherwise sound FL-series liner can sometimes be addressed with a stainless sleeve or HeatShield cerfractory sealant, but only if the camera shows the damage is localized and the surrounding liner wall is full thickness. We don’t recommend patching when the liner shows multiple failure points or the collar is compromised; the repair costs nearly as much as replacement and carries no warranty. We give free second opinions on any written estimate that proposes repair over replacement.
Most Famco flue liner replacements in McKinney are completed in one day, with the crew arriving between 8 and 9 a.m. and finishing by late afternoon. Two-story homes with offsets or liner extraction add a half day. We don’t schedule the work until you’ve seen the camera footage, received the written price, and approved the scope in writing - that’s Haven Standard Clause 1.
We stock 6-inch and 8-inch Famco-compatible flexible liners and the proprietary collar transitions on our McKinney trucks, pulled from Haven’s buying network. RL-series rigid sections and less common diameters (5-inch, 7-inch) typically arrive within 48 hours from our Dallas-Fort Worth supplier. We don’t start the clock on your job until the material is in hand and you’ve approved the written price.
Written by Corrine Halstead, Owner, Level Two Chimney McKinney at Level Two Chimney McKinney, serving McKinney and nearby areas.



Before
After
Before
After
Before
After