Famco Damper Repair: The Los Angeles Owner’s Guide
Famco damper repair in Los Angeles typically runs $280-$520 installed, depending on whether we’re replacing the plate, the frame, or the full assembly. We stock Famco-compatible dampers and hardware on our trucks, and most replacements are completed in a single visit. If you’re noticing cold drafts, smoke backup, or a handle that won’t budge, the damper is the first place we look.
Homeowners across Los Angeles usually discover the problem on the first cold night of the year, when they reach for the damper handle and it spins freely, grinds, or won’t seal at all. In older homes from Pasadena to the Palisades, we’ve seen original Famco dampers still in service after thirty years, and we’ve seen others fail in fifteen because of creosote buildup or the thermal cycling that comes with our dry, wide-temperature-swing climate. The chimney doesn’t lie. Neither do I.
Which Famco Models This Applies To
Famco has manufactured dampers under several series names over the decades, and the part you need depends on the era and the firebox opening. The most common we encounter in Los Angeles homes are the cast-iron throat dampers from Famco’s traditional line, typically sized 30″, 32″, 36″, or 42″ to match standard masonry firebox widths. Newer installations may use Famco’s galvanized or stainless top-sealing dampers, which mount above the flue tile rather than inside the throat.
To identify yours, look for a stamped model number on the damper frame, visible when the plate is fully open. If the stamp is rusted over, measure the width of the firebox opening at the throat and note whether the plate pivots on a center pin or rides in side tracks. We carry both OEM Famco replacement plates and quality aftermarket equivalents from Copperfield and Gelco that match the spec without the OEM premium. One compatibility gotcha: Famco’s pre-1990 cast frames used a slightly narrower pivot pin spacing than later production. If your home was built before 1990 and you’re ordering parts yourself, measure pin-to-pin rather than trusting a modern cross-reference chart.
Signs Your Famco Damper Repair Is Failing
- The handle turns but the plate doesn’t move. The linkage between the handle spindle and the plate has either corroded through or the set screw has backed out. In Los Angeles, the dry air slows rust, but creosote condensation at the hinge point still seizes these joints over time.
- Cold air falls down the flue even when the damper is “closed.” The plate is warped or the frame seat has eroded, leaving a gap. Our infrared checks often reveal a 1/8″ gap that costs you thirty dollars a month in conditioned air loss.
- The plate is stuck fully open or fully closed. Thermal expansion has jammed the plate in the frame, or debris has fallen into the track. Never force it with a pry bar; we’ve seen homeowners crack the firebox throat doing this.
- You see rust flakes or orange staining on the firebrick below the damper. Moisture is getting past a failing seal and condensing on the metal. In coastal Los Angeles neighborhoods like Venice or San Pedro, salt air accelerates this corrosion.
- Smoke spills into the room on startup. A damper that won’t open fully chokes the flue draft. The real danger isn’t the smoke you see; it’s the carbon monoxide you don’t, especially in tight modern homes or older ones with retrofit weather sealing.
Replacement Cost & What’s Included
| Service | Typical Range |
|---|---|
| Famco damper plate replacement (existing frame) | $280-$380 |
| Full Famco damper assembly (plate + frame) | $420-$520 |
| Top-sealing Famco-style damper (new installation) | $480-$650 |
| Firebox throat repair (if frame seat is damaged) | $180-$340 additional |
What drives the range: accessibility. A standard throat damper in a raised hearth with a cleanout door below is straightforward. A damper tucked behind a narrow lintel in a 1920s Spanish Colonial in Los Feliz takes longer. Our estimate includes the part, the labor, a Level-2 camera inspection to confirm the flue is clear above the repair, and disposal of the old assembly. The price we quote is the price on the invoice. Every Famco damper repair we perform is covered by our 90-Day Done Right Promise, in writing, no arguing.
DIY or Call Us?
There is one safe check a homeowner can make: with the fireplace cold and no ash present, shine a flashlight up the flue and verify whether the plate is actually moving when you work the handle. If the plate moves freely and seats flat, your problem may be draft-related, not damper-related.
Where DIY goes wrong is in the removal. Famco dampers sit in a high-tension pivot or track system, and the frame is mortared into the firebox throat. We’ve been called to jobs where a homeowner dislodged the frame and compromised the throat structure, turning a $340 repair into a $1,800 rebuild. The plate itself is heavy cast iron; dropping it risks damaging the firebrick or your hands. If the damper is above shoulder height or the firebox is deeper than your arm reach, it’s not a job for a ladder and a flashlight. Call us at (844) 418-0954. We’ll give you a straight answer on whether it needs replacement or just adjustment, and we’ll price it upfront before we start.
FAQs
A properly maintained Famco throat damper typically lasts 20-30 years in Los Angeles, though coastal salt air can cut that to 15. Annual sweeping to remove creosote buildup at the hinge points is the single best way to extend the lifespan. Call (844) 418-0954 to schedule an inspection and we’ll tell you where yours stands.
Sometimes. A loose handle spindle can be re-pinned, and minor surface rust can be cleaned and resealed. But if the plate is warped or the frame seat is eroded, repair is a temporary fix that costs nearly as much as replacement. We won’t charge you for a repair that won’t last.
Most Famco damper replacements take 90 minutes to two hours from ladder set to cleanup. If we discover throat damage once the old frame is out, we’ll show you the photo and give you the option to proceed or schedule a return visit. No surprises on the bill.
We carry Famco-compatible plates, frames, and hardware in the four most common sizes, along with equivalent-grade parts from Copperfield and Gelco. For rare or obsolete Famco models, we can typically source the correct part within 24 hours. A live person answers our phone 24 hours a day, 7 days a week to confirm availability before we dispatch.
Hearthstone Chimney Co. of Los Angeles is an independent service provider. We are not affiliated with, endorsed by, or a distributor for Famco Manufacturing. We simply know the product, stock the parts, and install them correctly.
Written by Gil Mercer, Owner & Master Sweep, Hearthstone Chimney Co. of Los Angeles at Hearthstone Chimney Co. of Los Angeles, serving Los Angeles and nearby areas.