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 Chimney Cap Installation: The Boulder Owner’s Guide
Famco chimney cap installation in Boulder typically runs $340-$620 for most single-flue and multi-flue models, including removal of the damaged unit, flue measurement, and proper mounting. We stock common Famco sizes on our trucks and can usually complete the swap in one visit. Most Boulder homeowners discover the problem after a windstorm sends the cap into the yard, or when water stains appear on the firebox ceiling after spring snowmelt finds its way down the flue.
Which Famco Models This Applies To
Famco produces three main chimney cap series that we regularly encounter in Boulder: the standard galvanized single-flue caps (SC series), stainless steel multi-flue models (MSC series), and the wind-resistant WindBeater line designed for high-exposure installations. The SC series carries a part number stamped on the underside lip of the skirt; MSC units have a laser-etched code on the mounting flange. WindBeater caps use a different attachment system entirely, with spring-loaded corner clamps rather than masonry screws.
The critical compatibility gotcha in Boulder’s market: Famco’s SC-8 and SC-10 caps share the same 8″ x 10″ nominal dimension but use different skirt depths. An SC-8 with a 6-inch skirt on a flue that needs the SC-10’s 8-inch skirt will gap at the base and funnel water directly onto the crown. We measure flue height above the crown, flue tile thickness, and crown slope before pulling a cap from the truck. That’s the difference between an OEM Famco replacement and a generic “fits 8×10” cap that doesn’t actually fit your flue.
We source Famco caps through Haven’s buying network alongside DuraFlex, HeatShield, and Gelco materials. Emberly Chimney Cleaners Boulder is an independent service provider, not affiliated with Famco. When a genuine Famco unit is back-ordered, we can spec a quality aftermarket equivalent from our Olympia Chimney or Copperfield inventory, matched to the exact flue dimensions and local wind load.
Signs Your Famco Chimney Cap Installation Is Failing

- The cap is missing, tilted, or rattling in wind. Famco caps rely on masonry screws or tension bands that loosen over Boulder’s freeze-thaw cycles. Once the seal breaks, the cap becomes a sail rather than a shield.
- Water stains on the firebox walls or smoke chamber ceiling. A cracked mesh screen or separated skirt seam on an SC-series cap lets snowmelt and driven rain bypass the crown. In Boulder’s dry climate, homeowners often mistake this for condensation until the damper rusts solid.
- Birds or squirrels nesting in the flue. Famco’s mesh sides are 5/8-inch weave on most models. If the mesh corrodes through at the weld points, which we see frequently on galvanized caps past year seven, animals walk straight in.
- Soot or creosote washing down the exterior masonry. A cap that’s too small for the flue, or installed without proper overhang, creates a pressure differential that pulls combustion byproducts backward during downdrafts. The camera doesn’t guess. Neither do I.
- The crown beneath the cap is spalling or cracked. Famco caps protect the flue opening, not the crown itself. If the cap was undersized from day one or the mounting holes were over-drilled, water hits the crown directly and freezes overnight. We’ve replaced caps on homes near Chautauqua where the crown damage was the real problem all along.
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AfterReplacement Cost & What’s Included
| Service | Price Range |
|---|---|
| Famco single-flue cap removal and replacement (galvanized) | $340-$440 |
| Famco stainless steel single-flue cap | $420-$540 |
| Famco multi-flue cap (MSC series) | $480-$620 |
| Crown repair required beneath cap (if found) | $180-$340 additional |
What drives the range: flue accessibility (steep roof pitch adds time), whether the existing fasteners are seized or stripped, and whether the crown needs resurfacing before the new cap seats properly. Every quote is written before work starts under Haven Standard Clause 1. The price includes the cap, stainless steel fasteners rated for Colorado’s UV and freeze cycles, a camera inspection of the flue top to confirm no debris fell during removal, and a photo record of the completed installation under Clause 4 of the Haven Standard. Work is backed by our 365-Day Done Right Promise.
DIY or Call Us?

What you can safely check from the ground: whether the cap is present, level, and whether mesh sides are intact. Use binoculars. If you see gaps between the cap skirt and flue tile, or daylight through the mesh, the seal is compromised.
Where DIY goes wrong: most Famco caps require working at roofline height on a surface that may be slick from Boulder’s overnight frost, even in April. The screws are typically #12 stainless, torqued into masonry, and if they’re seized, extracting them without chipping the flue tile takes a right-angle driver and patience. Worse, dropping a tool or the cap itself down the flue can lodge it in the smoke chamber, turning a $400 cap swap into a $900 extraction and camera retrieval. We carry the extraction tools and have done this before. If you’re comfortable on a ladder and have solid footing, you can attempt it. Most Boulder homeowners in Mapleton Hill and Newlands prefer to book the work and receive the photo documentation.
Call (970) 598-0453 for a written estimate. Estimates are free, and we offer a Free Second Opinion on any competitor’s written quote.
FAQs
Galvanized Famco caps typically last 7-10 years in Boulder’s high-UV, dry climate before the mesh welds corrode; stainless steel models often reach 15-20 years. The altitude accelerates UV degradation of the galvanized coating compared to lower-elevation installs we’ve done back east. Call (970) 598-0453 for an exact quote on replacement - estimates are free.
Mesh can be patched temporarily with stainless hardware cloth, but the repair rarely outlasts one winter and voids any remaining warranty on the cap itself. We recommend replacement so the unit maintains its engineered wind and water rating. Call (970) 598-0453 for a written price on a proper replacement.
Most Famco cap replacements take 45-90 minutes on site, including flue measurement, old cap removal, camera verification of the flue top, and new cap mounting. If crown repair is needed beneath the cap, add 60-90 minutes for proper curing time before the new cap is set. Call (970) 598-0453 to schedule.
We carry the four most common Famco sizes for Boulder’s flue dimensions, plus stainless equivalents from Olympia Chimney and Copperfield. If your cap is an unusual size or the WindBeater series with spring-clamp mounting, we measure on the first visit and return with the exact unit, with no additional trip charge. Call (970) 598-0453 to confirm availability for your model.
Written by Corrine Halstead, Owner, Emberly Chimney Cleaners Boulder at Emberly Chimney Cleaners Boulder, serving Boulder and nearby areas.





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