Masonry repair
Sweep & inspection
Caps & crowns
Flue relining
Gas fireplace serviceLevel 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 Santa Clarita Owner’s Guide
Famco damper repair in Santa Clarita typically runs $240 – $520 installed, depending on whether we’re replacing the damper plate, the frame assembly, or the full collar unit. We stock Famco-compatible damper parts on our trucks, and most repairs are finished the same day we arrive. The way most owners discover the problem: they smell smoke backing into the living room when the fireplace isn’t in use, or they notice cold air pouring down the chimney on a windy Stevenson Ranch evening.
A Famco damper is the metal door at the throat of a prefab or masonry chimney that opens when you burn and closes when you don’t. When it fails, it never fails quietly for long. You’ll know.
Key Takeaways
- Installed Famco damper repair in Santa Clarita: $240 – $520
- We carry Famco-compatible parts and aftermarket equivalents on the truck
- Most swaps take 60 – 90 minutes from setup to cleanup
- Every repair includes a written quote before work starts and a 365-day guarantee
- Flint Chimney Co Santa Clarita is an independent service provider, not affiliated with Famco
Which Famco Models This Applies To
Famco has been building dampers for decades, and the brand shows up in three places around Santa Clarita: original equipment in older prefab fireplaces, aftermarket replacements for masonry fireplaces, and top-sealing dampers mounted at the flue crown. The two lines we see most in the field are the Famco LD series (lever-operated throat dampers, common in 1970s and 1980s prefab boxes) and the Famco R series (rotary or chain-drive dampers found in newer installations).
Here’s the compatibility gotcha: Famco damper frame widths are not a one-size situation. We measure the flue throat in three dimensions, inside width, front-to-back depth, and the collar height, before quoting anything. A damper that’s off by half an inch either binds against the smoke shelf or leaves a gap that leaks air year-round. If the original label plate is still riveted to the frame, we read the model number directly. If it’s corroded away, which happens fast in the Santa Clarita Valley’s dry heat and occasional wildfire-season air, we go by measurement.
The OEM-versus-aftermarket question matters here. Famco still manufactures dampers, and for some older LD-series units, OEM is the only part that fits without modifying the frame. For R-series and most standard throat dampers, we carry quality aftermarket equivalents that match Famco’s steel gauge and hinge geometry. Hank Delano’s rule is simple: we spec the part that fits correctly and holds up, not the one with the better logo. The written quote names the exact part and brand before we touch anything.
Styles & brands we work with





Signs Your Famco Damper Repair Is Failing
- Smoke smell when the fireplace is cold. The damper plate isn’t sealing against the frame anymore, usually because the hinge ears have warped or the gasket edge has burned away. On a hot afternoon in Valencia, the chimney draft reverses and pushes that smell straight into the house.
- You can’t move the handle, or the handle spins loosely. A seized handle means the pivot shaft has corroded into the frame, common after a decade of Santa Clarita’s dry-wet-dry cycles. A loose handle means the cotter pin or set screw that connects the lever to the plate has sheared.
- Visible light around the closed damper plate. From inside the firebox, look up with a flashlight. A healthy Famco damper closes tight against its seat. A failing one shows a crescent of daylight around one or more edges.
- The damper plate is cracked or has a hole rusted through it. This is a fatigue failure, concentrated around the center of the plate where heat is most intense. Once a Famco plate cracks, it doesn’t salvage. It gets replaced.
- You hear the plate rattle when wind gusts hit the chimney cap. That’s a hinge slack problem. The plate has enough play to flutter, which means the pivot pin is wearing an oval into the frame. Left alone, the plate eventually drops one corner and wedges.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
In Santa Clarita, a straight Famco damper plate replacement lands between $240 and $340. If the frame or collar also needs replacing, which is common on older LD-series units where the cast frame has cracked at the hinge bosses, expect $380 to $520. The price includes the part, the labor, sealing the frame with refractory caulk rated for direct flame contact, and a function test with the damper cycled open and closed three times.
Here’s what drives the range, in plain terms:
- Plate-only vs. full frame: A warped plate with a healthy frame is the cheap fix. A cracked frame means removing the old collar, which takes longer and risks disturbing the smoke shelf.
- Access: Some Santa Clarita prefab fireboxes have tight throats that require disassembling the front trim to reach the damper cleanly.
- Top-sealing vs. throat-mounted: Top-seal units require a roof access job, which adds ladder work and a second technician for safety.
Every Famco damper repair carries our 365-Day Done Right Promise: if the repair fails within a year of the service date, we return and fix it at no charge. That’s a written guarantee, not a handshake. And the price you approve before work starts is the price on the invoice. No “found this once we opened it up” additions.
DIY or Call Us?
What you can safely check yourself: look up into the firebox with a flashlight and confirm whether the damper plate is visibly cracked, misaligned, or hanging loose. Take a photo. That’s genuinely useful when you call, because it tells us whether to load a plate or a full frame assembly onto the truck before we head to your place.
What goes wrong with DIY is the hinge work. Famco dampers mount on pivot pins that sit behind the smoke shelf, in a spot you can’t see without a mirror and can’t reach without pulling the frame. If a homeowner tries to force a seized handle, the usual result is a snapped lever arm and a bigger repair bill. If you try to drill out a corroded pivot pin blind, you can crack the cast frame. There’s also the reality of working inside a firebox covered in creosote dust, which is not a casual Saturday project. This is one repair where the labor cost is justified by the awkwardness of the workspace alone.
If you’d rather have it diagnosed and fixed in one visit, call (661) 430-6125. We’ll give you a straight answer on the phone and a written quote before any work begins.
FAQs
A Famco damper in Santa Clarita typically lasts 15 to 25 years, though plates in heavily used fireplaces in Stevenson Ranch and Sand Canyon often fail closer to the 10-year mark because intense heat cycling accelerates metal fatigue. The dry, high-summer climate slows rust but doesn’t stop it, especially around the hinge points where condensation collects during winter burns.
Yes, when the problem is the linkage, a loose handle, a sheared pin, or a worn gasket seal, those are repairable without replacing the plate or frame. But when the plate itself is cracked, warped beyond seating, or has rust-through pinholes, replacement is the only repair that holds. We’ll show you the failed part before we quote anything, and the quote says exactly which route applies.
A standard Famco throat damper replacement takes 60 to 90 minutes from setup to cleanup, assuming the frame is healthy and access is straightforward. A full frame or collar replacement runs closer to two hours, especially if the old frame has to be cut out in sections. We arrive inside the scheduled window and leave the firebox cleaner than we found it.
We carry Famco-compatible damper plates and frame assemblies for the LD and R series on our service trucks, along with aftermarket equivalents that match Famco’s steel gauge and hinge geometry. If your unit needs a top-seal damper, that’s typically ordered for next-day arrival and installed on the return visit. We also work with DuraFlex liners, HeatShield resurfacing, and Gelco products, so if the damper failure led to related flue damage, we handle that in the same visit.
A failing damper stays open enough to vent conditioned air out of your house, and the draft reversal on hot or windy days pushes creosote odor and combustion byproducts back into the living space. Over a year, the air leakage alone typically costs more in heating and cooling than the repair itself. Call (661) 430-6125 for an exact quote, estimates are free.
Clean flue, honest price, that’s the whole job.
Written by Hank Delano, Owner, Flint Chimney Co Santa Clarita at Flint Chimney Co Santa Clarita, serving Santa Clarita and nearby areas.