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 Mount Vernon Owner’s Guide
Famco chimney cap installation in Mount Vernon typically runs $340-$680 depending on flue size and whether the crown needs repair before the cap goes on. We stock Famco-compatible caps in common sizes for most Mount Vernon homes and can usually install within a few days of your call. Most homeowners discover the problem after a storm when water shows up in the firebox, or when they notice rust streaks running down the brick from a cap that’s been loose since the last hard winter.
Which Famco Models This Applies To
Famco caps break down into a few main series, and getting the match right matters more than people think. The stamped stainless-steel lines, the welded-seam heavy-duty models, and the older galvanized units each mount differently and carry different wind-load ratings. If your existing cap still has a label, check for a series prefix like “SS” for stainless or “HD” for the heavier welded line. Measure the outside dimensions of your flue tile or crown, not the old cap itself - a cap that sat crooked for years probably isn’t the measurement you want.
We see a lot of the Famco single-flue caps on Mount Vernon’s pre-war colonials and the multi-flue models on the larger two-families up near Fleetwood. The OEM Famco cap is solid, but there are quality aftermarket equivalents that match the gauge and spark-arrestor specs at a lower price point. We’re not affiliated with Famco, but we’ve installed enough of them to know which aftermarket caps hold up to Westchester’s freeze-thaw cycles and which ones start rattling loose after two seasons. Russell Haines makes the call on-site: if the OEM part is worth the extra money for your setup, he’ll say so. If a quality equivalent does the same job, he’ll say that too.
Signs Your Famco Chimney Cap Is Failing
- Rust stains on the brickwork below the cap. Even stainless-steel Famco caps can develop pinhole corrosion at the weld points after fifteen or twenty years of Mount Vernon winters. The rust runs down the chimney face and etches into the mortar if it goes on long enough.
- Water in the firebox or a damp smell after rain. A cap that’s shifted even half an inch off-center leaves a gap the wind drives rain straight through. We’ve pulled caps that looked fine from the ground but were funneling water down the flue for two seasons.
- Mesh screen pulled away from the frame or sagging. The spark-arrestor mesh on Famco caps takes a beating from creosote buildup and thermal cycling. Once it separates, embers can exit and squirrels can enter - neither ends well.
- Cap sitting tilted or visibly loose after wind. Mount Vernon’s nor’easters test every fastener. A cap that wobbles in a storm will be in your yard eventually, and often takes a section of flue tile with it.
- No cap at all, just an open flue. Sometimes the cap departs without the homeowner noticing until the next inspection. If you’re looking up at sky from your fireplace, the cap went somewhere - and the water’s already coming in.
Replacement Cost & What’s Included
Here’s what Famco chimney cap installation costs in Mount Vernon:
- Single-flue stainless cap, standard size (8″×8″ to 13″×13″): $340-$480
- Multi-flue cap or oversize single flue: $520-$680
- Crown repair or leveling needed before cap install: add $180-$340
- Flue tile replacement if the old cap damaged it: priced after camera inspection
The price includes the cap, all fasteners and sealant, removal and disposal of the old unit, and our 90-Day Done Right Promise in writing. We don’t quote over the phone for cap work without seeing the chimney - the crown condition underneath determines whether it’s a straightforward swap or something more. The number on the estimate is the number on the invoice. Call (914) 246-5794 for a free estimate.
DIY or Call Us?
There’s no high-tension spring or electrical hazard on a chimney cap, but there’s a real falling risk most people don’t account for. A two-story Mount Vernon colonial puts you eighteen to twenty feet up on a roof that’s often steep enough to make standing uncomfortable. Add morning dew or November frost, and a simple cap swap turns into an ER visit.
What you can safely do from the ground: confirm the cap is actually missing or damaged with binoculars, check your firebox for moisture after rain, and measure your flue opening if you can see it clearly. What goes wrong with DIY: wrong size ordered, crown not prepped so the new cap leaks within a year, fasteners driven into deteriorated mortar that crumbles by spring. Our technicians carry the common Famco sizes on the truck, bring the right masonry anchors for your crown condition, and finish most jobs in a single visit. If it needs doing, we’ll tell you. If it doesn’t, we’ll tell you that too.
FAQs
A quality stainless Famco cap typically lasts fifteen to twenty years in Westchester’s climate, though the galvanized units start showing rust in eight to ten. Salt air from the Sound doesn’t reach Mount Vernon directly, but the freeze-thaw cycles and occasional ice damming on the roof edge stress the fasteners more than owners expect. Call (914) 246-5794 if you’re unsure about yours - estimates are free.
Sometimes. A loose cap with intact mesh and no rust can often be re-secured with proper masonry anchors and fresh sealant. Once the mesh separates or the frame cracks, replacement is the only fix that lasts - we’ve tried patching enough of them to know the difference. Call (914) 246-5794 and we’ll give you a straight answer after looking at it.
Most Famco cap replacements take ninety minutes to two hours from ladder set to cleanup, assuming the crown underneath is sound. If we find spalling or cracking that needs repair first, we’ll show you the photos and price the additional work before starting. Our background-checked, uniformed technicians complete most jobs in a single visit.
We stock Famco-compatible stainless caps in the sizes that fit most Mount Vernon homes - single-flue 8″×8″ through 13″×13″ and multi-flue models for larger chimneys. If your flue is an unusual size or you want a specific Famco finish, we can order it with a short lead time. Either way, you don’t need to source anything yourself - we handle the match, the materials, and the install.
Ready to get this handled? Call (914) 246-5794 any time - a live person answers, 24 hours a day, seven days a week. We’ll schedule a free estimate, show you exactly what your chimney needs with a camera inspection and photos you can see, and give you upfront pricing with no surprises on the bill. We’ve been serving Mount Vernon and Westchester County for over 42 years, and we plan to be here for decades more. Done right - and we stand behind it.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Mount Vernon and nearby areas.





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