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 Commack Owner’s Guide
We stock and install Famco chimney caps throughout Commack, with most replacements running between $285 and $540 installed, depending on cap size and flue type. The cap itself is usually on the truck, so if we’re already out for a sweep, we can often swap it the same visit. Most Commack homeowners discover the problem the same way: they spot rust streaks on the chimney crown, hear water dripping into the firebox after a rain, or find a few pieces of a disintegrated cap sitting in the yard after a nor’easter. By the time you can see it from the ground, it has usually been failing for a season or two.
Which Famco Models This Applies To
Famco makes three cap lines we work with regularly in Commack: the standard single-flue caps (FC series), the multi-flue caps (MF series), and the top-mount caps (TM series) that strap to the outside of a clay tile or metal flue. If you still have the original box or the manual, look for the model number stamped on the inside collar or on the underside of the lid. Ten years of salt air and Long Island winters will have worn it down to a ghost impression, so here is the fallback: measure the flue tile. A 13″ x 13″ clay tile takes an 18″ x 18″ Famco cap, sometimes labeled a 13×13 expanded, which is the single most common size in Commack ranch and split-level homes.
Famco caps are built on the same fundamental design across all three series, so an OEM replacement is rarely the only road. A properly sized quality aftermarket cap performs just as well, provided the mounting hardware is stainless and the mesh is 3/4-inch. What we will not do is put an aluminum cap on a wood-burning flue and tell you it will hold up, especially anywhere in Commack within a couple miles of the Long Island Sound. Wendell Pike has unwrapped enough corroded aluminum caps to know the salt air eats them in three seasons. That is a fact, not an upsell.
Signs Your Famco Chimney Cap Installation Is Failing
- Rust streaks running down the chimney crown or brick. The galvanized base ring is rusting through. Water follows the rust, freeze cycles expand it, and the crown starts spalling. You are not looking at a stain; you are looking at the cap telling you it is done.
- Water in the firebox after a straight-down rain. Rain falling vertically should never get past a functioning cap. If the firebox is wet, the lid is holed or the mesh has pulled away from the collar. On Famco specifically, we see the spot welds at the lid corners fail first.
- Birds or squirrels in the flue. That means the mesh is torn or gone. Famco mesh is galvanized on older caps and it rusts from the bottom up, so the tear hides behind the collar until a starling finds it. You will hear it before you see it.
- Cap sitting crooked on the flue tile. The stainless steel band has loosened over seasons of expansion and contraction. A leaning cap lets rain run down into the gap between the cap and the tile, which is the same as having no cap at all in a hard storm.
- Loud draft noise or a downdraft smell when the fireplace is not in use. A failed cap stops doing its wind job. The hood and mesh work together to break wind shear over the flue opening. Once the geometry warps, air pushes back down and sends that cold-fireplace smell into the living room in Commack’s windier months.
Replacement Cost & What’s Included
In Commack, a Famco or Famco-equivalent single-flue cap replacement runs $285 to $410 installed. Multi-flue caps and custom top-mount work land between $410 and $540, and a double-flue cap on a wide brick chimney with an extended mesh sits at the upper end. The price includes the cap, stainless hardware, removal of the old cap, and cleanup around the crown.
Here is the honest breakdown of what drives the range:
- Cap size and series: single-flue caps cost less than multi-flue; larger lids and taller mesh mean more material.
- Flue condition: if the flue tile top is cracked or crumbling, we will tell you and discuss whether a crown repair or flue cap adapter makes sense. We will not mount a new cap on a broken tile and call it done.
- Roof access: a steep pitch or a chimney in the middle of a two-story Commack colonial adds setup time. We price that in before work starts, not after.
Every Famco cap we sell is joined to the flue with stainless hardware, never the galvanized screws that come in the Famco box. Those rust out in two years on Long Island. Our hardware outlives the cap. The work itself carries our 90-Day Done Right Promise, same as a liner job or a rebuild. If the install is not right, one call brings us back, no charge.
DIY or Call Us?
If you are comfortable on a ladder and your chimney is a single story with an easy roof pitch, you can check the cap from the ground and confirm what failed: shine a flashlight up the flue, look for daylight through the mesh, and check whether the band is wobbly. That is useful information and it makes the phone call faster.
What we would not recommend is a DIY swap on a steep Commack roof, on any chimney over two stories, or on a flue you cannot safely see from above. This is not about protecting our job, it is about physics. Cap work happens at the worst point of the roof, you are carrying stainless up a ladder, and a slipped foot on mossy cedar shingles after a Long Island summer is a genuinely bad day. We have the harness, a second man on the ground, and decades of roofs under our boots. If it is an easy single-story job and you want to tackle it, we will even tell you which cap size to buy. But if you would rather hand it off, call (631) 502-3612 and we will get the right Famco-compatible cap on there, usually in one visit.
FAQs
A stainless Famco cap on a wood-burning flue in Commack lasts 8 to 12 years before the mesh or the welds begin to fail. On an oil or gas flue, add three to five years, because the exhaust is less corrosive. If you are close to the Sound, subtract a year or two. The salt air accelerates galvanized hardware faster than anything else we see.
It depends on what failed. A torn mesh can sometimes be re-meshed if the lid and band are solid, but on Famco caps under $120 for the part itself, repair rarely makes economic sense once you factor the roof trip. We will give you the honest call after seeing it. If replacement is cheaper, we will tell you that; if it does not need doing yet, Wendell will be the first one to say so. Call (631) 502-3612 and we will take a look.
The actual swap takes about 30 minutes on a normal Commack roof. With setup, roof access, and cleanup, plan on an hour to 90 minutes. If you are combining it with a sweep, which is smart if there has been water getting in, we can often do both in a single morning visit.
Yes, we carry the most common Famco-compatible sizes on the truck, including the 13×13 and 18×18 single-flue caps that fit the majority of Commack brick chimneys. If you have an unusual flue, we order it and it is here within a few days. We also stock and install caps and parts from DuraFlex, HeatShield, and Gelco if you have another brand in play.
If your Famco cap is rusted, leaning, or letting water in, call (631) 502-3612. We will schedule a time, give you the price before a single tool comes off the truck, and get it done right the first time. Free estimates, no trip charge in Suffolk County, and $40 off any repair over $200.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Commack and nearby areas.





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