Famco Damper Repair Nationwide

Famco Damper Repair: The Baltimore Owner’s Guide

Famco damper repair in Baltimore typically runs $240-$420 installed, and we stock the common Famco throat damper assemblies and replacement plates on our trucks for same-day replacement. Most Famco dampers we see in Baltimore rowhouses and pre-war brick homes are the cast-iron throat style, and the part that fails is almost always the frame or the hinge pin, not the plate itself. You’ll know it’s gone when the damper won’t stay open, won’t close fully, or drops soot into the firebox after you’ve swept the ash.

Call (410) 849-6273

Which Famco Models This Applies To

Famco has manufactured dampers under several series names over the decades, and the critical distinction is throat damper versus top-sealing damper. The throat dampers we encounter most in Baltimore are the Famco 100-series and 200-series cast-iron frames, typically sized 8″×8″ up through 13″×13″ to match the flue tiles common in local masonry chimneys. The model number is stamped on the front frame rail, visible with a flashlight when the damper is fully open. If the stamp is rusted away, measure the throat opening width and depth, and note whether the control is a lever on the right, left, or center.

We carry both OEM Famco replacement frames and aftermarket equivalents from Copperfield that match the bolt pattern and handle geometry. The aftermarket frames fit without masonry alteration in about 85% of the Baltimore jobs we do. When the original frame is set in a poured concrete smoke shelf, we use the OEM part to avoid grinding. Russell Haines checks the fit with a template before we pull the old frame, so we’re not guessing while your firebox is open.

Signs Your Famco Damper Repair Is Failing

• The damper plate falls open or shut on its own. The torsion spring or counterweight has fatigued, or the hinge pin has worn an oval hole in the cast-iron ear. In Baltimore’s humid summers, rust accelerates this wear, and we see it most in homes near the harbor where salt air creeps inland.
• You feel a cold draft even with the damper “closed.” The plate has warped from years of uneven heating, or the frame seat has eroded from creosote acids. A true seal is gone; you’re heating the neighborhood.
• The handle is stuck or spins freely. Either the linkage has corroded solid, or the set screw has stripped where it meets the axle. Forced turning usually snaps the cast-iron ear, and then you’re replacing the frame, not just the handle.
• Soot or debris drops into the firebox after cleaning. The damper plate no longer sits flush. Creosote flakes that should stay in the smoke chamber sift through the gap. This is how chimney fires start, a few flakes at a time landing on hot brick.
• You smell smoke in the room during a fire. The damper is not opening fully, or it’s opening crooked and restricting draw. Incomplete combustion sends smoke into living space instead of up the flue.

Replacement Cost & What’s Included

What drives the range: whether the smoke shelf needs refractory patching, whether the frame is set in concrete or mortar, and whether we use OEM or quality aftermarket. We quote the full number before we start, and that’s the number on the invoice. The 90-Day Done Right Promise covers the installation; the part itself carries the manufacturer’s warranty. We document the old damper with photos, show you the new one seated and operating before we close up, and leave you a plain-English report.

DIY or Call Us?

There’s a safe middle ground here. You can verify the model stamp, measure the throat, and check whether the handle linkage is simply detached rather than broken. A detached linkage sometimes reattaches with a cotter pin from the hardware store.

What you should not do: pry at a rusted frame with a crowbar, or try to burn out a stuck damper with a hot fire. The cast iron is brittle, and a snapped frame ear drops metal into a working fire. The smoke chamber above the damper is not a place for an untrained person; the surfaces are coated with creosote that disturbs easily, and a slip means a fall into brick. We’ve retrieved more than one homemade tool from a flue.

Call (410) 849-6273 and we’ll talk through what you’re seeing. If it’s a simple fix, we’ll say so. If the frame needs replacement, we’ll schedule it and bring the right part the first time.

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