Famco Damper Repair in Los Angeles, CA

Famco Damper Repair: The Los Angeles Owner’s Guide

We stock and install Famco-compatible damper repair assemblies across Los Angeles, with most jobs running $280-$520 installed depending on the model series and whether the frame needs reseating. Same-day service is available when you call before noon, and our trucks carry the common Famco throat dampers and top-sealing damper kits used in L.A. homes built from the 1960s through the 1990s. Most owners figure out something’s wrong when they feel a cold draft down the flue in December, or when smoke starts backing into the room because the damper plate won’t open fully after years of heat cycling and creosote buildup.

Call (844) 803-1545

Which Famco Models This Applies To

Famco manufactured two main damper lines you’ll find in Los Angeles: the traditional cast-iron throat dampers with the stamped “FAMCO” handle and pivot assembly, and the later galvanized top-sealing dampers that mount to the flue tile crown. The throat dampers most often need repair in the 8-inch, 10-inch, and 13-inch by 13-inch frame sizes, though we’ve pulled 11-inch by 14-inch oddballs out of Mid-Century homes in the Hollywood Hills that required custom bracket fabrication.

To identify yours, look for the raised casting mark on the handle bracket or the small oval tag on top-mount units. The critical measurement is the inside width of the smoke chamber throat, not the firebox opening, which homeowners often get wrong by two inches. OEM Famco parts are no longer manufactured, so we source matched aftermarket equivalents from Copperfield and Gelco that fit the original pivot points and maintain the same 5/16-inch plate thickness. In some cases, a complete Stainless Steel Damper from Olympia Chimney is the smarter long-term play, particularly if the original cast-iron frame has cracked from thermal shock, which we see regularly in homes near the coast where morning fog and afternoon sun cycle the metal hard.

Signs Your Famco Damper Repair Is Failing

• The handle turns but the plate doesn’t move. The pivot pin has sheared or the linkage has corroded through, usually from creosote hardening in the joint. This is the most common failure we see in Los Angeles, especially in fireplaces that haven’t been swept in five-plus years.
• You feel a cold downdraft even when the damper is “closed.” The plate has warped from heat cycling and no longer seats flush against the frame, leaving a gap that lets outside air pour in. In canyon neighborhoods like Laurel Canyon and Topanga, this can make a room ten degrees colder overnight.
• Smoke spills into the room on light-wind days. The damper only opens partially because the plate has jumped its track or the frame has shifted in the mortar. This one’s dangerous, not just inconvenient.
• Rust flakes fall when you operate the handle. The galvanized coating has failed, usually from condensation trapped by a missing or damaged chimney cap. Once rust starts on a Famco throat damper, the frame integrity goes within two to three years in L.A.’s marine air.
• The handle is stuck completely. Either the plate has corroded to the frame, or the handle assembly has filled with hardened soot. Forcing it usually snaps the casting. We’ve replaced handles that owners broke with pliers, which always costs more than calling us first.

Replacement Cost & What’s Included

The range depends on three things: whether we can reuse the existing frame or need full replacement, whether the smoke chamber needs mortar patching to seat the new unit properly, and whether your flue is standard dimension or one of the oddball sizes common in 1970s tract homes around the San Fernando Valley. Our estimate includes the part, labor, disposal of the old assembly, and a post-installation draft test. Everything is covered by our 90-Day Done Right Promise - in writing, no arguing. The number on the estimate is the number on the invoice.

DIY or Call Us?

There’s one thing you can safely check yourself: whether the handle nut has simply loosened and the linkage has slipped. Tighten it with a wrench and see if the plate responds. Beyond that, we don’t recommend owner repair. Throat dampers sit in a high-heat, high-soot environment above the firebox, and the frame is embedded in refractory mortar that cracks if you pry wrong. We’ve been called to jobs in Los Feliz and Silver Lake where a homeowner’s “simple” fix turned into a $900 smoke chamber rebuild because they levered the frame out with a crowbar.

Top-sealing dampers involve roof work, period. No exceptions. If your Famco unit is the top-mount style, call us. We’ll be there when we say, and most damper replacements are done in a single visit. Find what’s wrong, say it plainly, fix it right.

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