Famco Damper Repair: The Houston Owner’s Guide
We stock and install Famco-compatible damper repairs across the Houston metro, with most jobs running $280-$520 installed depending on whether we’re replacing the plate, the frame, or the full assembly. Same-day service is available six days a week, and our trucks carry the common Famco throat damper sizes so we’re not making a second trip. Most Houston homeowners realize their Famco damper has failed when they feel a cold downdraft in January, smell smoke backing into the living room, or notice the handle won’t stay open or won’t close fully.
Which Famco Models This Applies To
Famco throat dampers fall into a few distinct series, and matching the right repair kit matters. The cast-iron C-series and the lighter stamped-steel S-series use different pivot pin spacing, frame depths, and plate thicknesses. If you’re pulling the handle and getting no resistance, the first thing to check is the small stamped code on the damper frame’s left side, visible from the firebox with a flashlight. That code, usually two letters and four digits, tells us whether you’ve got the 8-inch, 10-inch, or 13-inch frame depth.
We carry both OEM Famco replacement plates and quality aftermarket equivalents from Copperfield on every truck. The OEM route guarantees exact fit but runs higher and can mean a week wait if Houston distributors are out of stock. Our aftermarket plates match Famco’s cast-iron spec and carry the same 90-Day Done Right Promise, which is why most of our Heights and Bellaire customers go that route. One compatibility gotcha: the S-series stamped frame from pre-2008 production used a narrower pivot boss. Newer plates seat but won’t pivot freely without grinding, and we don’t grind on fire-rated components. We check the boss width before quoting.
Signs Your Famco Damper Repair Is Failing
- The handle spins freely or falls slack. This usually means the worm gear inside the cast-iron frame has stripped its threads, or the connecting rod has corroded through at the joint. Houston’s humidity accelerates this, especially in fireplaces that see seasonal use only.
- Cold air pours down the flue even when the damper is “closed.” The plate has warped from heat cycling or the frame has settled out of square, leaving a gap along the rear edge. We see this most in Memorial-area homes with original 1980s Famco units that have been cranked tight for forty years.
- Smoke spills into the room during a fire. If the plate won’t hold open position, combustion gases back up before they can draft upward. The cause is often a cracked pivot pin or a frame ear that’s fatigued from repeated thermal shock.
- Rust flakes or gritty debris fall onto the firebrick. The plate’s edge seal has deteriorated, and moisture is attacking the iron from both sides. In Houston’s coastal-influenced climate, this advances faster than inland markets.
- The damper is stuck fully open or fully shut. Corrosion has seized the worm gear, or creosote has cemented the plate to the frame. Forcing it with a poker or wrench risks snapping the frame ear, which turns a repair into a full fireplace throat rebuild.
Replacement Cost & What’s Included
| Repair Type | Typical Range (Houston) | What’s Included |
|---|---|---|
| Famco plate replacement (aftermarket) | $280-$380 | New plate, edge seal, hardware, removal/disposal of old unit |
| Famco plate replacement (OEM) | $340-$460 | Genuine Famco plate, full assembly alignment, seal check |
| Full frame and plate replacement | $420-$520 | New frame, plate, pivot hardware, mortar repair to throat, smoke test |
| Stuck damper extraction (no parts) | $180-$240 | Disassembly, cleaning, re-lubrication, function test |
What drives the range: frame depth, whether the throat masonry needs tuckpointing after frame removal, and accessibility. Some Houston ranch-style homes in Spring Branch have tight fireboxes that add labor. Others in River Oaks have generous Rumford throats that make the swap straightforward. The number on your estimate is the number on your invoice. Our 90-Day Done Right Promise covers the work in writing, no arguing.
DIY or Call Us?
There’s a short list of things a homeowner can safely check. Verify the handle set screw hasn’t backed out. Confirm debris isn’t blocking the track. Make sure the fireplace is fully cold before you do either.
What you should not do: reach up the flue with a wrench, hammer on a seized pivot, or attempt to remove a rust-welded plate. The frame ears are cast iron, brittle, and positioned directly above your firebox. Break one, and you’re looking at a throat rebuild that costs three times the repair. The plate also weighs eight to fourteen pounds depending on the model, and it’s awkward overhead work on a ladder in a firebox. We’ve rescued enough DIY attempts in Montrose and the Heights to know where this goes wrong.
Call (877) 516-5603 and we’ll confirm your Famco model over the phone, quote upfront, and get a technician out with the right part.
FAQs
A quality replacement plate or frame should last fifteen to twenty years with annual sweeping and normal use. Houston’s humidity and occasional freeze-thaw cycling can shorten that if the fireplace sits unused for seasons at a time, which is why we check damper function during every inspection. Call (877) 516-5603 to schedule - estimates are free.
Sometimes. A seized worm gear can be cleaned and re-greased if the threads are intact. A warped plate cannot be straightened to seal reliably, and cracked frame ears cannot be welded to fire-safe standard. We assess this during our Level-2 camera inspection and give you a plain-English verdict with photos you can see. Call (877) 516-5603 for an exact answer on your unit.
Most Famco damper replacements take ninety minutes to two hours from ladder set to smoke test. Full frame replacements run two to three hours if throat mortar needs resetting. Our background-checked, uniformed technicians complete most jobs in a single visit. Call (877) 516-5603 to book a morning or afternoon slot.
We carry the common throat damper sizes for both the C-series and S-series, plus Copperfield-compatible plates that match Famco specs. For rare or discontinued models, we source overnight from Houston-area suppliers. A clean flue doesn’t announce itself. That’s the point. Call (877) 516-5603 and we’ll confirm what your specific Famco unit needs before we roll.
Hearthstone Chimney Co. of Houston is an independent service provider. We are not affiliated with Famco Manufacturing.
Written by Dale Hutchins, Owner & Master Sweep, Hearthstone Chimney Co. of Houston at Hearthstone Chimney Co. of Houston, serving Houston and nearby areas.