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 Crown Repair: The Downers Grove Owner’s Guide
We stock and install Famco-compatible crown repair assemblies in Downers Grove for $340-$620 installed, depending on crown size and flue count. Most Famco crown jobs we book are completed same visit because we carry the common stainless and galvanized assemblies on our trucks. Homeowners usually discover the problem after a hard rain: water pooling on the firebox floor, damp mortar joints turning white with efflorescence, or a rust streak running down the brick from a corroded crown edge.
Which Famco Models This Applies To
Famco crowns are found most often on their B-Vent and Type L venting systems, plus the older Famco masonry chimney cap assemblies from the 1990s and early 2000s that are still common in Downers Grove’s 1950s-1980s housing stock near Lester and Prairie Lakes. The critical identifier is the crown base diameter stamped on the underside lip, typically 8″, 11″, or 13″ for residential units. Famco used two fastener patterns: pre-2005 assemblies with four slotted tabs, and post-2005 with a continuous anchor flange. We stock both patterns.
The OEM Famco crown runs 30-40% above aftermarket equivalents from Gelco or Olympia Chimney, which we source through our Haven buying network. For most Downers Grove homes, the aftermarket stainless crown matches the spec and carries the same 20-year rust-through warranty. We only recommend OEM when the existing flue collar is a proprietary Famco taper that won’t seat a universal replacement, something we confirm with a tape measurement before quoting.
Signs Your Famco Crown Repair Is Failing

- Hairline cracks spreading from the flue collar. Thermal cycling in Downers Grove’s freeze-thaw winters opens these cracks wider each season. Water enters, freezes, and lifts the crown edge until the seal fails completely.
- Rust-colored staining on exterior brick below the crown. This means the crown’s galvanized base is corroding through, usually at the drip edge where snow and ice sit longest. Once rust shows on the brick, the crown is no longer protecting the flue.
- Water in the firebox after rain, even with the damper closed. A cracked or poorly seated crown lets water run straight down the flue liner. In homes near Downers Grove’s Salt Creek watershed, we see this accelerated by wind-driven rain from the southwest.
- The crown sits uneven or wobbles when pressed. Anchor bolts corrode or the masonry wash beneath the crown erodes. Either way, the assembly is no longer structurally anchored and can lift in a storm.
- White powder (efflorescence) blooming on interior firebox walls. This is dissolved lime from mortar joints being carried through by moisture. It means water has been entering repeatedly, and the crown is the most likely entry point on a Famco system.
Before
AfterReplacement Cost & What’s Included
| Scope | Price Range |
|---|---|
| Single-flue Famco crown, stainless aftermarket | $340-$460 |
| Single-flue Famco crown, OEM | $480-$580 |
| Multi-flue or oversize (13″+ base) | $520-$620 |
| Masonry wash rebuild beneath crown (if eroded) | $180-$260 additional |
Every Famco crown replacement we quote in Downers Grove includes the NFPA 211 Level 2 camera inspection to confirm flue liner condition beneath the crown, removal and disposal of the failed assembly, new stainless or galvanized crown with matching fastener pattern, fresh silicone high-temp seal at the flue collar, and a documented photo record before and after. The written price, written scope, and written warranty are delivered before work starts, Haven Standard Clause 1. Our 365-Day Done Right Promise covers the installation and materials.
DIY or Call Us?

A homeowner can safely check the crown from the ground with binoculars for cracks, rust, or tilting. Do not climb the roof to inspect it. Chimney crowns sit at height, often on steep-pitch roofs, and the fastener torque required to seat a new crown properly demands two hands on a stable platform. More critically, a misaligned crown gaps the flue collar and dumps combustion gases into the attic space, a carbon monoxide hazard we find in roughly one in ten DIY attempts we are called to correct.
If you see the symptoms above, call (331) 253-4980. We’ll confirm the Famco model from your venting label, measure for fit, and give you a written price before anyone starts. The camera does not lie, and neither does the written price.
FAQs
A properly installed stainless Famco crown lasts 20-25 years in the Chicago climate; galvanized versions typically show corrosion at 12-15 years, especially where road salt spray and freeze-thaw cycles are heaviest. Call (331) 253-4980 and we’ll check yours with the camera, no charge for the estimate.
Hairline cracks under 1/16 inch can sometimes be sealed with a crown coat compound if the underlying metal is sound, but we only recommend this after camera inspection confirms no hidden rust or wash erosion. Most cracks we see in Downers Grove have already compromised the metal beneath. We will show you the camera footage and quote both options in writing.
Most Famco crown replacements are completed in 90 minutes to two hours, including the camera inspection and photo documentation. We carry the common sizes on our trucks, so there is no wait for parts.
We stock Famco-compatible crowns in stainless and galvanized for the 8″, 11″, and 13″ base diameters, plus both pre- and post-2005 fastener patterns. OEM Famco crowns are available through our Haven buying network with next-day delivery if your system requires the proprietary taper fit. Call (331) 253-4980 and we’ll confirm which you need before booking.
Ready to get your Famco crown checked? Call Emberly Chimney Cleaners Downers Grove at (331) 253-4980. A live person answers 24/7, and we’ll send a written estimate with your name on it before any work begins.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Downers Grove at Emberly Chimney Cleaners Downers Grove, serving Downers Grove and nearby areas.





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