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.
Copperfield Damper Repair: The Greenwich Owner’s Guide
Copperfield damper repair in Greenwich typically runs $240-$390 installed for a standard throat damper replacement or $185-$310 for a tension/handle assembly repair, and we stock the common Copperfield sizes on the truck so most jobs finish in one visit. You’ll know the damper has failed before you ever look inside: the fire won’t draft cleanly, smoke backs into the room when you light the first log, or the handle spins without catching. In homes across Cos Cob, Riverside, and central Greenwich, we find these dampers either rusted through at the hinge, warped from one too many hot burns with the damper fully closed, or simply worn past adjustment at the tension point.
Level Two Chimney Greenwich is an independent service provider. We’re not affiliated with Copperfield, but we’ve installed and repaired their dampers across Fairfield County for years, and we keep OEM and quality aftermarket parts in the truck so you’re not waiting on a parts shipment.
Key Takeaways
- Installed Copperfield damper repair in Greenwich: $185-$390 depending on part type and access.
- Most Copperfield throat dampers are top-mount or side-mount cast iron with interchangeable tension assemblies.
- We carry common Copperfield replacement assemblies on the truck. One visit, most cases.
- Written price before any work starts, photo record when it’s done (Haven Standard Clauses 1 and 4).
Which Copperfield Models This Applies To
Copperfield makes two damper families we see most often in Greenwich homes: the CTD-series cast iron throat dampers installed directly above the firebox, and the CD-series top-sealing dampers that cap the flue at the crown. The throat dampers fail more often, and they’re simpler to replace. The top-sealing units fail less but cost more when they do, because installation usually means working from the roof or repointing around the flue tile.
To identify what you have, look at the damper plate itself. Copperfield stamps the model number into the cast iron on most CTD units, typically on the underside of the plate near the hinge pin. If the stamp has rusted off, measure across the opening. Greenwich flues are nominally 8×8, 8×13, or 13×13 in most pre-1990 construction; Copperfield sizes their dampers in half-inch increments that match those openings, and the size is the measurement of the damper frame, not the flue tile itself. That half-inch difference catches a lot of owners who order parts online. Aftermarket replacement assemblies from Famco fit most Copperfield throat openings, but the mounting bolt pattern differs by 3/8 inch on the CTD-1600 and above; if you’re mixing brands, you need the adapter plate, and you need to know that before the old damper is out. We keep both OEM Copperfield and Famco equivalents on the truck, and we verify the fit before anything is unbolted.
Signs Your Copperfield Damper Repair Is Failing

- Smoke rolls back on cold starts. This is the classic. The damper plate isn’t staying fully open, or the tension assembly has loosened and it drifts closed mid-burn. On Copperfields specifically, this is usually the tension spring losing compression at the handle pivot.
- The handle spins freely or stops catching. The gear teeth inside the tension assembly were never the strongest point of these units. Once they strip, the handle turns but the damper plate doesn’t respond.
- You hear a clank when the fire gets hot. The damper plate expands faster than the frame and binds, then releases suddenly. Over a season, that binding warps the plate edge. In Greenwich winters, cold-soaked cast iron sees wider temperature swings than most climates, and thermal cycling is the #1 cause we note on write-ups.
- Cold air pours in even with everything closed. If the damper won’t seat flush, conditioned warm air drafts up through the flue all winter. A warped Copperfield plate or failing top-seal gasket leaves a visible gap at the corners.
- Visible rust-through or pitting on the plate edge. Curled iron where the plate meets the frame means years of mixed-use (wood fires + gas logs) have taken their toll. Coastal humidity near the Greenwich shoreline accelerates this; inland homes around Glenville and Banksville show it more slowly.
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AfterReplacement Cost & What’s Included
Installed pricing in Greenwich for a Copperfield throat damper replacement runs $240-$390. At the low end, that’s a straight swap with the firebox right there and no masonry work: remove the old assembly, secure a matching plate and tension kit, verify the pivot points, test the full range of motion. At the high end, you’re looking at a top-sealing Copperfield CD-series unit where roof access, flue crown prep, and sealant work are factored in, plus disposal of the old cast iron.
Every quote from Level Two Chimney Greenwich is delivered in writing before anyone steps near your firebox. That written scope names the part number or equivalent, states the installed price, and specifies the warranty. Under Haven Standard Clause 1, the written price is the price. What you get when the job is done: a photo record of the old part out and the new part seated and tested (Clause 4), and the 365-Day Done Right Promise in writing. If the repair isn’t right, we make it right.
DIY or Call Us?

You can safely confirm what’s wrong without calling anyone. Look at the damper plate with a flashlight. If you see rust-through, a visible gap at the frame even when the handle is in the closed position, or the handle spins without resistance, you’ve got the information you need.
What you shouldn’t do is unbolt a cast iron damper assembly inside a confined firebox. The plate is heavier than it looks, the mounting bolts are often fused with creosote and rust, and if the tension assembly is still under partial spring load, it can release as you work. Add in the fact that you’re lying on your back in a masonry box, and it’s a job that’s earned its service call. The swap itself takes under two hours in most Greenwich homes. Call (516) 399-5497 and we’ll schedule it; Corrine Halstead or a lead tech will be the one on site, and you’ll have the written price before anything starts.
FAQs
Most original Copperfield throat dampers in Greenwich homes last 15-22 years before the tension assembly or plate edge fails. Coastal humidity near the shoreline shortens that by a few years; inland homes with annual cleaning tend to hit the top of the range. The thermal cycling between cold-soaked winters and hot fires is what warps the plate over time.
Sometimes, and it’s worth checking before assuming a full replacement. If the plate itself is sound and the failure is in the tension/handle assembly, replacing the assembly runs $185-$310 and keeps the original plate. If the plate shows warping, rust-through, or edge failure, replacing just the assembly would leave you with a damper that still won’t seat; that’s a full replacement.
Most Copperfield damper replacements in Greenwich are done in under two hours, and top-sealing CD-series swaps take about three when roof access and crown sealing are needed. We stock common replacement parts on the truck, so if you call (516) 399-5497, we’ll typically confirm the part availability before we arrive.
We stock standard Copperfield throat damper plates, tension assemblies, and Famco equivalents for Common Greenwich flue sizes on the truck, so one-visit repairs are the norm. For less common sizes or top-sealing units, we’ll source the exact part before dispatch and tell you the delivery window when you call.
Written by Corrine Halstead, Owner, Level Two Chimney Greenwich at Level Two Chimney Greenwich, serving Greenwich and nearby areas.





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