Famco Damper Repair Nationwide

Famco Damper Repair: The Leesburg Owner’s Guide

Famco damper repair in Leesburg typically runs $280-$520 installed, depending on whether the throat plate, frame, or full assembly needs replacement. We stock Famco-compatible dampers and hardware on our trucks, and most Leesburg homeowners get same-visit completion once we confirm the model and sizing. You’ll usually discover the problem on the first cold night in November, when the damper won’t open fully, won’t seal shut, or drops a rust flake into the firebox while you’re trying to light kindling.

Call (571) 701-7519

Which Famco Models This Applies To

Famco built dampers under several series names over the decades, and the part you need depends on the throat size and whether your fireplace is factory-built or masonry. The most common units we see in Leesburg are the Famco 3000 series cast-iron throat dampers, the 5000 series stainless assemblies, and the older 1000 series galvanized units found in 1970s and 1980s colonials. Check the stamped model number on the damper frame, usually visible from the firebox looking up, or measure the throat opening width and depth if the tag is corroded away.

The 3000 series uses a 5/16-inch spindle that differs from the 3/8-inch spindle on competing brands, a compatibility gotcha that sends some homeowners back to the hardware store with the wrong part. We carry both OEM Famco hardware and quality aftermarket equivalents from Copperfield and Gelco that match the original specs. For a unit older than 25 years, we typically recommend the aftermarket stainless option, it outlasts the original galvanized steel in Virginia’s freeze-thaw cycle and costs less than tracking down discontinued OEM stock.

Hearthstone Chimney Co. 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. The spindle connector has corroded or the cotter pin has sheared off. In Leesburg’s humid summers, rust builds up where the spindle passes through the frame, and the connection fails before the plate itself does.
• You feel cold air falling down the chimney even when the damper is “closed.” The plate has warped or the frame has settled out of square, leaving a gap that lets conditioned air escape year-round. We see this most often in the older masonry chimneys near Morven Park where the flue has shifted slightly over decades.
• The plate is stuck open and won’t drop. Creosote buildup has glued the plate to the frame, or the counterweight spring has broken. This is the one that wastes the most money on heating bills before the homeowner notices.
• You hear a clank or rattle when the damper moves. The hinge pin has worn loose or the plate has cracked at the mounting ear. It still functions until the day it doesn’t, usually mid-burning season.
• Rust flakes or debris fall into the firebox. The galvanized coating has failed and the steel underneath is scaling. In Virginia’s climate, this accelerates once it starts, a 30-year damper can go from surface rust to structural failure in two or three seasons.

Replacement Cost & What’s Included

For Leesburg homeowners, Famco damper replacement breaks down as follows:

• Damper plate or spindle repair only: $280-$360
• Full damper assembly replacement (masonry fireplace): $380-$520
• Factory-built fireplace insert damper: $340-$480

The range depends on three things: whether we can access the throat without removing firebrick, whether the frame is reusable, and whether your flue size requires a custom-order part versus what we carry. Our estimate includes the Level-2 camera inspection, the part, the installation, and cleanup. The number we give you is the number on the invoice. Every damper job carries our 90-Day Done Right Promise in writing, no arguing, if it’s not right, we come back.

DIY or Call Us?

There is one safe check a homeowner can make: from the firebox, look up with a flashlight for the model stamp and note whether the handle moves freely with the plate. Beyond that, damper work involves working at height inside the chimney throat, often with corroded metal under spring tension, and disturbing the firebrick surrounding the frame. A dropped damper plate can crack the flue liner, and a misaligned replacement leaks carbon monoxide and costs more to fix than the original repair. We don’t recommend DIY on this part. Call (571) 701-7519 and we’ll confirm the model, quote the work, and schedule the repair. Most Leesburg jobs take under two hours once we’re on site.

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