Famco Damper Repair Nationwide

Famco Damper Repair: The Pasadena Owner’s Guide

We stock and install Famco-compatible damper assemblies and repair kits throughout Pasadena, with most repairs running $280-$520 installed depending on whether we’re replacing the plate, the frame, or the full throat assembly. Most Famco damper jobs we book are completed same-day because we carry the common sizes on our trucks. Homeowners usually notice the problem first as a draft they can’t close off, a handle that spins without catching, or smoke rolling into the room on a cold Pasadena evening when the Santa Ana winds are pushing down the flue.

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Which Famco Models This Applies To

Famco built dampers under several product lines over the decades, and the part you need depends on which generation is in your fireplace. The cast-iron throat dampers from Famco’s standard residential line, common in Pasadena homes built between 1965 and 1995, typically measure 8″ × 8″ up through 12″ × 12″ and carry a stamped model number on the handle bracket or the top plate edge. If that stamp is rusted over, we measure the throat opening and the plate thickness on site, match it to Famco’s original specs, and cross-reference to current aftermarket equivalents from Olympia Chimney and Gelco that we source through our Haven buying network.

The newer Famco top-sealing dampers, recognizable by the cable-and-cap design mounted at the chimney crown, use a different sizing logic entirely. Those caps are model-matched to flue diameter, not throat width, and the cable length varies by chimney height. We’ve replaced enough of these in Pasadena’s hillside homes, where the taller flues run 20 feet or more, to know that a cable cut too short is a return trip nobody wants. We carry the standard cable lengths and the 8″, 10″, and 13″ cap diameters on the truck. Level Two Chimney Pasadena is an independent service provider, not affiliated with Famco.

Signs Your Famco Damper Repair Is Failing

• The handle turns but the plate doesn’t move. On Famco cast-iron throat dampers, the pivot pin corrodes where it passes through the frame, especially in Pasadena’s dry climate where temperature swings between 40°F winter nights and 90°F days stress the metal. The plate hangs frozen while the handle spins free.
• You feel a cold draft even with the damper “closed.” The cast-iron plate warps over years of heat cycling, or the sealing edge erodes from creosote acid. A 1/8-inch gap along a 10-inch plate is enough to pull heated air out of your living room continuously.
• Smoke spills into the room on startup. If the damper plate is stuck partially closed, or if the top-sealing cap isn’t lifting fully off the flue, exhaust has nowhere to go. In Pasadena’s older Bungalow Heaven craftsman homes with shallow fireboxes, this symptom shows up fast.
• The cable is frayed or the spring won’t retract (top-sealing models). Famco top-sealing dampers use a stainless cable and a tension spring that lives in the flue. After 10-15 years of heat exposure, the spring loses tension or the cable develops kinks from repeated freeze-thaw cycles on the roof.
• Rust flakes fall when you operate the handle. Surface rust is normal, but when the plate edge or frame spalls off flakes thick enough to see, the metal is thinning. We’ve pulled Famco plates in Pasadena that had worn to half their original thickness at the pivot point.

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Replacement Cost & What’s Included

In Pasadena, a Famco throat damper plate replacement runs $280-$380; a full throat assembly with new frame runs $420-$520. Top-sealing Famco damper replacements, including the cap, cable, and mounting hardware, typically fall between $380-$480 installed. The range depends on three things we can show you: whether the existing frame is reusable, whether the smoke chamber above needs refractory repair to seat a new frame properly, and whether we need to extend or replace the cable run on top-sealing units.

Every repair includes the NFPA 211 Level 2 camera inspection to confirm the flue condition above the damper, a written scope and price before we start, and the documented photo record required under Clause 4 of the Haven Standard. Parts and labor carry our 365-Day Done Right Promise. We source Famco-compatible materials through our Haven buying network alongside DuraFlex, HeatShield, and Gelco to keep pricing honest.

DIY or Call Us?

There’s one safe check a homeowner can make: open the damper fully, shine a flashlight up the flue, and confirm the plate moves symmetrically and seats flat. If it doesn’t, the repair goes beyond what we’d recommend handling without the right tools and the camera inspection to see what’s above it.

Throat dampers sit at the top of a hot, confined smoke chamber. The pivot pins are often seized with decades of creosote, and the frame is mortared into masonry that cracks if you pry wrong. Top-sealing dampers require roof access, proper fall protection, and working on a live flue edge. We’ve been called to jobs in Pasadena where a homeowner removed the old plate successfully, then discovered the frame was cracked and the smoke chamber was spalling, with no way to assess the flue condition above. The camera doesn’t negotiate - it just shows what’s there. Call us at (213) 459-6058 and we’ll show you what we’re looking at before we quote anything.

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