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 Damper Repair: The Commack Owner’s Guide
Famco damper repair in Commack typically runs $225 to $475 installed, depending on whether we’re replacing the blade assembly, the frame, or the full unit. We keep the most common Famco damper parts on the truck, so most repairs happen in one visit. Where homeowners usually catch the problem first is a damper that won’t stay open, won’t fully close, or a handle that spins without moving anything. Sometimes it’s the pivot pins. Sometimes it’s warped steel from years of heat.
You need a damper that closes when the fire’s out. Otherwise you’re paying to heat Commack in February with the flue wide open. And in summer, a failed damper lets conditioned air pour up the chimney while letting humidity and the occasional wasp find their way down. If your Famco damper is fighting you, it’s usually a small part with a straightforward fix, and we’ll tell you exactly what we find before we touch a single bolt.
Which Famco Models This Applies To
Famco has made dampers for decades, and most of what we see in Commack homes falls into three groups: the LD (Lyemance-style top-sealing dampers), the FD (cast-iron throat dampers), and the older rectangular blade dampers that came standard in masonry fireplaces from the late 1970s through the 1990s. The repair path is different for each, which is why we match the part before we quote a price.
If you can find the model plate, it’ll be stamped on the frame or the handle bracket. No plate? Measure the throat opening side to side and front to back. That measurement matters more than the model number, because Famco built dampers in 6-inch, 8-inch, 10-inch, and 12-inch widths, plus custom cuts. The most common gotcha we run into in Burr Farms and other older Commack neighborhoods is a chimney throat that was mortared to fit a specific damper size, so the replacement has to match within an eighth of an inch or it won’t seat correctly.
On OEM versus aftermarket: Famco still makes many of their current damper components, and for the LD series we prefer OEM blades because the hinge geometry has to match the existing frame precisely. For older rectangular dampers that Famco no longer supports, we use quality aftermarket replacements from Copperfield, which Top Hat Chimney also installs and stands behind. We service Famco products as an independent local shop, not as a Famco dealer, so we’ll always give you the straight answer on which part actually makes sense for your fireplace.
Signs Your Famco Damper Repair Is Failing
- Handle spins without resistance. The linkage between the handle and the blade has sheared or slipped. On Famco throat dampers this is usually a cotter pin or a worn keyway, both cheap fixes if caught before the blade drops out of position.
- Damper won’t stay open during a fire. The pivot pins have worn or the blade has warped from heat. A warped blade won’t seat against the frame even with new pins, so the fix is a blade swap, not a lube job.
- Cold air pours down the chimney in winter. The damper isn’t closing fully. Could be warpage, rust scale built up on the seating edge, or a blade that’s shifted on its hinge. This is the one you feel first when you walk past the fireplace.
- Rust flakes falling into the firebox. On cast-iron Famco dampers, the seating surface is the first thing to go. Once the edge rusts unevenly, the damper can’t form a tight seal no matter how hard you crank the handle closed.
- Animal noise or the smell of a nest. A damper that won’t close is an open door from the top of the flue. Squirrels, raccoons, and chimney swifts discover it before you do, and by the time you hear them, there’s already a nest on top of the damper blade. This is a repair plus a cleaning, and you want both done in that order.
Replacement Cost & What’s Included
Here’s what Famco damper repair costs in Commack as of this winter:
- Blade replacement only: $225-$310 installed, including a replacement Famco or Copperfield blade matched to your measurements, pivot pin service, and a seating check.
- Full throat damper replacement: $350-$475 installed, including removing the old damper, fitting the new frame, mortaring it into the throat, and testing the seal with a smoke pencil.
- Top-sealing damper (LD-style) rebuild: $275-$400, depending on whether we’re replacing the cable, the blade, the spring, or all three. Cable failures are the most common LD issue we see.
The price on the phone is the price on the invoice. We quote upfront, before a single tool comes off the truck, and we don’t change it at the door. Every damper repair is covered by our 90-Day Done Right Promise: if the damper doesn’t operate correctly, one call brings Wendell Pike back at no additional charge. And standing offer: $40 off any repair over $200, or 10% off always for seniors and veterans.
DIY or Call Us?
You can safely check a few things yourself: whether the handle turns, whether the blade moves when you look up from the firebox with a flashlight, and whether you can see light around the blade edges when it’s supposed to be closed. That tells you something is wrong, and you can describe it well enough for us to bring the likely part on the first trip.
But here’s where DIY goes wrong on Famco dampers: the pivot pins and linkage live inside the throat, which means working overhead in a dark, cramped space with a hot firebox below. If the old damper blade drops while you’re under it, that’s a broken wrist waiting to happen. Prying on a corroded frame can crack the surrounding masonry, and then you’ve turned a $300 damper repair into a fireplace rebuild. Damper replacement and repair involves working with a fire control component and near masonry at height inside the firebox. We recommend it be handled by a trained professional. That’s exactly what we do. Call (631) 502-3612 and we’ll walk you through what you’re seeing over the phone.
FAQs
A cast-iron Famco throat damper in a Commack fireplace typically lasts 20 to 30 years before the seating surface or pivot pins need attention, though dampers in homes closer to the water go sooner because the humidity accelerates rust. If yours is original to a house from the 1980s or 1990s, you’re on borrowed time and it’s worth a look before next burn season. Call (631) 502-3612 for a free estimate and we’ll tell you honestly whether it needs work now or can wait.
Most Famco dampers can be repaired rather than replaced, usually by swapping the blade, pivot pins, or linkage while keeping the original frame. We replace the whole unit when the frame is cracked, the masonry around it has shifted, or corrosion has eaten through the seating edge. We’ll show you the problem on camera before recommending anything, and if it doesn’t need doing, I will be the first one to tell you. Call us at (631) 502-3612 for a straight answer.
A typical Famco damper repair takes 45 minutes to two hours on site, depending on whether we’re swapping a blade or mortaring in a full frame replacement. We stock the common Famco parts on the truck, so most jobs are done in a single visit. Call (631) 502-3612 and we’ll give you a real arrival window and a call if it slips.
Yes, we carry the most common Famco damper blades, pivot pins, cables, and linkage parts on our service trucks, so most Famco repairs in Commack are handled same-visit. For odd sizes or discontinued models, we order from Famco or a Copperfield equivalent, and that’s usually a two-day turnaround. We also stock damper parts for DuraFlex, HeatShield, and Gelco systems. Call (631) 502-3612 with your measurements and we’ll confirm what we have before we head out.
Written by Wendell Pike, Owner, Top Hat Chimney at Top Hat Chimney, serving Commack and nearby areas.





Before
After
Before
After
Before
After