Famco Damper Repair Nationwide

Famco Damper Repair: The Evanston Owner’s Guide

We stock and install Famco-compatible damper repair assemblies in Evanston, with most jobs running $280-$520 installed depending on whether we’re replacing the plate, the frame, or the full throat-mount unit. Same-day completion is common because we carry the four most common Famco damper sizes on our trucks. Most Evanston homeowners discover the failure on the first cold snap in October or November, when they open the damper and it drops, binds, or won’t seal shut against the frame.

Call (708) 234-1174

Which Famco Models This Applies To

Famco dampers fall into two main lines: the traditional cast-iron throat dampers (marked with a “T” series stamp) and the top-sealing Lyemance-style dampers with the external chain or cable operator. The throat dampers typically measure 30″, 32″, or 36″ for Evanston’s pre-1980 masonry fireplaces, while the top-sealing units come in 13″ x 13″ through 17″ x 17″ flue sizes. Check the stamped model number on the damper frame’s left side, or measure the throat opening width and depth if corrosion’s eaten the stamp.

We source Famco OEM parts through Haven’s buying network, but we’ve also qualified an aftermarket cast-iron plate from Olympia Chimney that matches Famco’s 5/16″ thickness and pivot geometry at a lower parts cost. The catch: Olympia’s plate doesn’t fit the pre-1975 Famco T-series with the wider 7/8″ pivot pin. We verify that measurement during our camera inspection before quoting. For top-sealing Famco units, we stick with OEM silicone seals because the aftermarket equivalents we’ve tested harden faster in Lake Michigan’s freeze-thaw cycles.

Signs Your Famco Damper Repair Is Failing

• The plate drops or tilts when opened. The pivot pins have worn oblong holes in the cast-iron frame, or the cotter pins have corroded through. In Evanston’s lakefront historic district, we see this on dampers installed before 1960 where the sulfur in old coal soot accelerated pitting.
• You feel cold air falling even when the damper is “closed.” The plate has warped from repeated heating and cooling, or the seal gasket has compressed to nothing. A warped 32″ Famco plate can leak the equivalent of a 4″ diameter hole straight to your attic.
• The handle or chain requires force, then snaps free. The linkage has corroded at the bend points, or the top-sealing cable has frayed inside its housing. Forced operation usually destroys the frame bracket, turning a $280 plate replacement into a $520 full assembly.
• Rust flakes fall onto the firebox floor. The cast iron has reached advanced spalling, where layers flake off like peeling bark. Once this starts, the plate thickness drops below 3/16″ and it won’t seat flat even if the pivot works.
• You smell smoke in the room during a fire. The damper isn’t opening fully, or it’s opening crooked and obstructing the smoke path. We check this with a smoke pencil during our Level 2 inspection; the camera doesn’t negotiate, and neither does creosote.

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Replacement Cost & What’s Included

The range depends on three things: whether we can reuse the existing frame, how much the firebrick needs trimming to extract the old unit, and whether the smoke chamber above needs parging to restore clearance. We deliver a written price before any work starts, with each line item broken out, under Haven Standard Clause 1. Every Famco damper repair carries our 365-Day Done Right Promise.

DIY or Call Us?

There’s one safe owner check: open the damper fully, shine a flashlight up, and look for the model stamp or measure the plate. Everything after that belongs to a trained technician. Throat dampers weigh 15-25 pounds of cast iron, sit above a narrow firebox, and require working on a ladder inside your chimney’s smoke chamber. The spring tension on a top-sealing Famco cable can snap a finger if released wrong. We’ve been called to Evanston homes where a homeowner’s “simple” plate swap cracked the firebrick or dropped the old frame down the flue. If you’ve identified the model, call (708) 234-1174 and we’ll confirm fitment before we dispatch, with a written price waiting when we arrive.

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