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 Naperville Owner’s Guide
We stock and install Famco-compatible flue liner replacement in Naperville, with typical installed pricing running $2,400-$4,200 depending on liner diameter, height, and whether the existing liner is stainless or terracotta. Most Famco replacements we book in Naperville are completed in a single day, and we carry common diameters on our trucks. Homeowners usually discover the failure during a routine sweep when the camera catches cracked terracotta, separated stainless seams, or orange rust bloom at the thimble connection.
Which Famco Models This Applies To
Famco manufactured both round and oval flexible stainless liners, typically in 304 or 316 alloy, with diameters from 3 to 8 inches. The critical identifier is the collar stamp at the top termination, which lists the alloy grade and manufacturing date. Pre-2015 Famco liners used a lighter-gauge 304 in certain residential runs, and we’ve found those fail faster in Naperville’s freeze-thaw cycle than the 316 variants. The collar stamp also tells you whether your liner was part of Famco’s standard or heavy-duty series, the latter using thicker walls and longer seam welds.
We source replacement through Haven’s buying network, matching OEM spec or upgrading to 316Ti alloy when the original was 304. Aftermarket equivalents from Olympia Chimney and Gelco meet the same UL 1777 listing and often ship faster than Famco direct. We verify compatibility by measuring the flue’s interior dimensions and checking clearances to combustibles before quoting, because a liner that fits the flue but violates NFPA 211 clearance is a fire hazard we won’t install.
Signs Your Famco Flue Liner Replacement Is Failing

- Orange rust staining at the thimble or cleanout door. This means moisture is getting past the liner wall, usually at a seam or collar joint. In Naperville, where spring rains saturate masonry before summer heat drives it inward, rust accelerates once the protective chromium layer breaches.
- White efflorescence on the exterior brick. Flue gases carrying moisture through liner cracks condense inside the masonry, leaching salts to the surface. The camera doesn’t guess. Neither do we. We document the crack location and efflorescence pattern together.
- Smoke smell in upper rooms during shoulder seasons. A separated liner joint or spalled terracotta section lets dilute flue gas escape into the chase. This is carbon monoxide risk territory, not just odor.
- Deteriorating mortar between flue tiles. Mortar joints were never meant to be the gas seal. Once they erode, the liner system has failed structurally even if individual tiles look intact.
- Visible gaps or daylight through the flue wall on camera inspection. NFPA 211 Level 2 inspection with a camera is how we catch this. Gaps as small as 1/8 inch can permit flame impingement on framing in a chimney fire scenario.
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AfterReplacement Cost & What’s Included
Famco flue liner replacement in Naperville breaks down as follows:
| Component | Price Range |
|---|---|
| Stainless liner (304 or 316Ti), material only | $800-$1,600 |
| Top plate, collar, and termination cap | $180-$340 |
| Insulation wrap (required by code for most installs) | $200-$380 |
| Labor: removal, prep, installation, sealing | $1,100-$1,800 |
| NFPA 211 Level 2 camera inspection and photo record | Included |
| Total typical installed | $2,400-$4,200 |
Taller chimneys, offset flues requiring multiple elbows, or the need to rebuild the top course of brick push toward the high end. We deliver a written price before any work starts, with the scope and warranty in the same document. That’s Haven Standard Clause 1. The 365-Day Done Right Promise covers the installation and materials. We also offer a Free Second Opinion on any competitor’s written estimate for Famco liner replacement in Naperville.
DIY or Call Us?

Homeowners can safely check the collar stamp and measure flue diameter from the cleanout or top. What you cannot safely do is drop a liner down a two-story flue chase, torque the top plate to proper compression, or verify clearance to combustibles without a borescope and knowledge of local amendment codes. The liner arrives coiled under significant tension and can whip if mishandled. More critically, an improperly seated liner creates the exact carbon monoxide and fire risks you’re trying to solve.
We carry 5-, 6-, and 7-inch Famco-compatible diameters on our trucks for Naperville calls. Camera inspection, written price, and installation typically book within a week during non-peak season. Call (331) 265-1700.
FAQs
A properly installed 316Ti stainless liner should last 15-25 years in Naperville’s climate, though pre-2015 Famco 304 liners we’ve replaced have sometimes failed at 8-12 years due to chloride stress corrosion accelerated by freeze-thaw cycling. Annual inspection catches deterioration before it becomes hazardous. Call (331) 265-1700 to schedule - estimates are free.
Localized seam gaps or small cracks can sometimes be addressed with HeatShield cerfractory sealant if the liner is otherwise sound and accessible, but we won’t recommend repair without camera evidence you can see yourself. Replacement is required when the damage is extensive, the alloy has thinned, or clearance to combustibles is compromised. We show you the footage and explain which category you’re in before quoting either path.
Most Famco flue liner replacements in Naperville are completed in one day, occasionally stretching to two for multi-flue chimneys or jobs requiring crown rebuilds. We arrive with the liner, insulation, and termination hardware on the truck, so there’s no mid-job parts run. You’ll receive the photo record and written warranty documentation before we leave.
We stock common Famco-compatible diameters and source specialty sizes through Haven’s buying network, typically with a 2-3 day lead time if we need to pull an unusual spec. Because we carry DuraFlex, HeatShield, Gelco, Olympia Chimney, and Famco materials, we’re not waiting on a single supplier. For standard 5- and 6-inch residential liners, we often install same-week in Naperville.
Level Two Chimney Naperville is an independent service provider and is not affiliated with Famco Manufacturing. We install Famco-compatible and equivalent-listed flue liner products under the Haven Standard.
Ready to get a written price on your Famco flue liner replacement? Call (331) 265-1700. A live person answers 24/7, and we’ll schedule your NFPA 211 Level 2 camera inspection with documented photo record. Corrine Halstead and our crew have been working Naperville chimneys for years, from the Riverwalk corridor out to the newer builds near 75th Street. Every job gets a written price before work starts, a photo record when it’s done, and the 365-Day Done Right Promise.
Written by Corrine Halstead, Owner, Level Two Chimney Naperville at Level Two Chimney Naperville, serving Naperville and nearby areas.





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