Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Famco Damper Repair: The Ellicott City Owner’s Guide
Famco damper repair in Ellicott City typically runs $220-$380 installed, and we stock the most common Famco throat and top-sealing damper assemblies on our trucks. Most replacements are completed in a single visit. Homeowners usually notice the problem first as a draft they can’t close off, or a handle that spins without catching - signs that the cast-iron frame has corroded at the pivot, the stainless cable has frayed, or the spring-tension plate has lost its grip after years of heating and cooling cycles.
Which Famco Models This Applies To
Famco has produced dampers under several series names over the decades, and the part you need depends on when your fireplace was built and whether you’re dealing with a throat damper inside the flue or a top-sealing damper mounted at the chimney crown.
The older Famco cast-iron throat dampers - common in Ellicott City homes built between 1965 and 1990 - typically measure 30″, 36″, or 42″ wide, with a 3/16″ pivot rod that seats in notched side brackets. The telltale identifier is the raised “Famco” casting on the front face plate, usually above the control handle. Newer top-sealing models use a stainless steel lid and cable-down operator; the model number is stamped on the frame rail visible from the firebox.
We carry both OEM Famco replacement frames and aftermarket equivalents from Gelco and Olympia Chimney that match the original specs without the OEM markup. One compatibility gotcha: the 36″ Famco throat damper used two different pivot bracket spacings between 1978 and 1985. We measure in-person rather than guessing from a model number alone. Hearthstone Chimney Co. is an independent service provider - not affiliated with Famco - so we source the part that fits correctly, not just the part with the right logo.
Signs Your Famco Damper Repair Is Failing
- The handle turns but the plate doesn’t move. The pivot rod has corroded through at the bracket, or the cast-iron plate has cracked at the socket. In Ellicott City’s freeze-thaw climate, moisture that seeps down the flue during winter temperature swings accelerates this failure.
- You feel cold air dropping even when the damper is “closed.” The plate has warped or the frame has shifted, leaving a gap along the edge. A dollar bill slipped between plate and frame will slide through on a failed seal.
- The cable hangs loose or the chain has no tension. On top-sealing Famco models, the stainless cable can fray where it passes through the guide tube, or the spring mechanism in the frame housing has fatigued. This is the most common failure we see on Famco top-sealers after 12-15 years of service.
- Rust flakes fall into the firebox when you operate the handle. Surface rust is normal; chunks of scaling metal mean the cast iron has reached end of life. In homes near the Patapsco River valley, higher humidity can shorten the expected lifespan by 20-30% compared to drier inland Maryland.
- The damper is stuck fully open or fully closed. Creosote buildup has glued the plate to the frame, or the bracket has shifted and the pivot is binding. Forcing it with a poker or wrench usually cracks the plate.
Replacement Cost & What’s Included
| Service | Typical Range |
|---|---|
| Famco throat damper replacement (standard 30″-36″) | $220-$320 |
| Famco throat damper replacement (42″ or oversize) | $280-$380 |
| Famco top-sealing damper replacement | $320-$480 |
| Pivot bracket repair only (plate salvageable) | $140-$190 |
What drives the range: accessibility of the damper from the firebox, whether the smoke shelf needs clearing, and whether the original frame has warped the surrounding brickwork. Every estimate includes the part, labor, a Level-2 camera inspection of the flue above the damper, and photos you can see with a plain-English verdict. The number on the estimate is the number on the invoice. All work is covered by our 90-Day Done Right Promise - in writing, no arguing.
DIY or Call Us?
There’s a safe middle ground here, and then there’s where DIY stops.
You can safely check: whether the handle set-screw has loosened (tighten with a flathead), whether debris is blocking the track, and whether the cable has simply slipped its clip. A flashlight and a step stool are all you need.
Do not attempt to remove or replace the damper plate yourself. The cast-iron assembly weighs 15-25 pounds and sits above your head in a confined space. More critically, the pivot brackets are embedded in the firebrick; disturbing them without knowing the flue’s structural condition can loosen the liner or crack the smoke shelf. We’ve been called to Ellicott City homes where a homeowner’s “simple” damper removal turned into a $1,400 smoke chamber repair. The flue doesn’t lie - we just translate what it’s telling you. Call (410) 305-7884 and we’ll sort out what’s actually wrong before any work starts.
FAQs
A cast-iron Famco throat damper typically lasts 20-30 years in this climate, though homes in the more humid Patapsco watershed often see closer to 18-24 years. Top-sealing stainless models average 15-20 years before cable or spring fatigue sets in. Annual inspection catches the decline before it becomes a draft you can’t control. Call (410) 305-7884 for a free estimate.
Sometimes. If the pivot brackets are sound and only the handle, cable, or tension spring has failed, we can replace those components for roughly half the cost of full replacement. If the cast-iron plate is cracked or the frame is warped, replacement is the only safe option. We photograph the damage and show you before recommending either path. Call (410) 305-7884 for a free estimate.
Most Famco damper replacements take 90 minutes to two hours from ladder set to final camera check. We complete most jobs in a single visit because we stock the common sizes on our trucks. You’ll get photos of the new installation and the flue condition above it. Call (410) 305-7884 for a free estimate.
We carry the three most common Famco throat damper widths - 30″, 36″, and 42″ - plus the standard top-sealing cable-down assemblies. Less common sizes or older pivot bracket configurations we source within 24-48 hours. We confirm fit during the initial inspection so there’s no second trip for measurement. Call (410) 305-7884 for a free estimate.
Ready to stop the draft and get your fireplace back to working order? Call Hearthstone Chimney Co. at (410) 305-7884. A live person answers 24 hours a day, 7 days a week - no voicemail, no callback queue. We’ll schedule your inspection, show you exactly what your Famco damper is doing, and give you a square deal: no surprises on the bill. Done right - and we stand behind it.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Ellicott City and nearby areas.





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