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.
Olympia Chimney Damper Repair: The Bedford Owner’s Guide
Olympia Chimney damper repair in Bedford typically runs $280-$480 installed, depending on whether the throat plate, frame, or full assembly needs replacement. We stock common Olympia Chimney damper components on our trucks and can usually complete the repair in a single visit. Most Bedford homeowners notice the problem on the first cold night in fall, when the damper won’t open fully or won’t seal tight enough to stop the downdraft.
The damper sits right above the firebox, exposed to creosote, moisture from Bedford’s heavy spring rains, and the thermal shock of decades of heating and cooling cycles. Olympia Chimney builds their dampers with stainless steel frames and cast-iron throat plates in most residential models, which holds up well but not forever. When the frame warps or the plate cracks, you’re losing heat up the flue even when the fireplace is cold, and you’re letting cold air pour into the room. We’ve replaced Olympia Chimney dampers in homes from Bedford Village to the horse properties along Harris Road, and the story is usually the same: the part worked fine for twenty years, then it didn’t.
Which Olympia Chimney Models This Applies To
Olympia Chimney manufactures throat dampers for their own factory-built fireplace systems and as replacement units for masonry fireplaces. The most common models we see in Bedford are the OCD-30 and OCD-36 series throat dampers, sized for 30-inch and 36-inch fireplace openings respectively. You’ll find the model stamp on the left side of the damper frame, visible from the firebox with a flashlight. If the stamp is rusted over, measure the width of the fireplace opening at the lintel and the depth from the lintel to the back wall of the firebox. Those two numbers tell us which Olympia Chimney frame you need.
Olympia Chimney also produced the OCD-RK retrofit kit for masonry fireplaces with rusted-out original dampers. The retrofit kit uses a narrower frame that fits inside the existing lintel without masonry work, which saves most Bedford homeowners $400-$600 compared to a full rebuild. We carry both OEM Olympia Chimney dampers and quality aftermarket equivalents from Gelco and Copperfield. The aftermarket units match the specs but run about 15% less. For an Olympia Chimney factory-built fireplace, we stick with OEM. For a masonry retrofit, the Gelco equivalent carries the same ten-year warranty and we’ve had no callbacks on it.
Signs Your Olympia Chimney Damper Repair Is Failing
- The handle turns but the plate doesn’t move. The linkage pin has corroded or the cotter pin has sheared off. This is the most common failure we see in Bedford homes built in the 1980s and 1990s, where the original Olympia Chimney damper has been exposed to forty years of humid summers and dry winter heat.
- You feel cold air falling from the fireplace even with the damper “closed.” The throat plate has warped or the frame has settled out of square. A gap as small as a quarter-inch along one side will pull heated air out of your house continuously. We’ve measured temperature drops of eight degrees near the hearth in homes around Bedford Hills from this exact leak.
- The plate is stuck open and won’t drop. Creosote has built up on the pivot rod, or the frame has rust-swelled enough to bind the plate. This is a fire hazard as well as an energy waste, because an open damper allows creosote-laden smoke to cool too quickly in the flue.
- You hear metal scraping or grinding when operating the handle. The pivot bushings have worn through and the plate is riding directly on the frame. Left alone, this will oval out the pivot holes and ruin the frame, turning a $320 repair into a $680 replacement.
- Visible rust flakes or orange staining on the firebrick below the damper. The frame is corroding from the inside out, usually from condensation that forms when warm, moist house air hits the cold flue in shoulder seasons. Bedford’s location in the frost pocket between the Hudson and Connecticut valleys means we get more of this freeze-thaw cycling than lower Westchester.
Replacement Cost & What’s Included
| Repair Type | Price Range (Bedford) | What’s Included |
|---|---|---|
| Olympia Chimney linkage/pin replacement | $280-$340 | New linkage assembly, handle, cotter pins; adjustment and seal test |
| Olympia Chimney throat plate replacement (OEM) | $340-$420 | Plate, gaskets, hardware; frame inspection and cleaning |
| Full Olympia Chimney damper assembly | $420-$480 | Frame, plate, handle, linkage; removal of old unit, installation, seal verification |
| Gelco/Copperfield equivalent (masonry retrofit) | $360-$440 | Aftermarket assembly, same warranty terms, same single-visit completion |
The price spread depends on three things: whether we can access the damper without removing the fireback, whether the frame bolts have seized and need extraction, and whether the smoke shelf above needs cleaning before the new unit will seal. We price every job upfront after a camera look, and that number does not change. The 90-Day Done Right Promise covers the installation and the part. If it does not seal, we come back. In writing, no arguing.
DIY or Call Us?
There is one safe check a homeowner can make: open the damper fully, shine a flashlight up, and look for the model stamp or measure the opening. That’s it. Everything else involves working at height above a masonry edge, handling a steel plate that typically weighs fifteen to twenty pounds, and operating in a space where one slip means a hand through the fireback or a wrenched shoulder.
We’ve been called to Bedford homes where the owner got the old damper out and then discovered the new one would not seat because the lintel had settled 3/8-inch in forty years. That is not a problem you can eyeball. We carry shims, masonry bits, and the full range of Olympia Chimney and Gelco frame sizes because we’ve seen the variations. If the job is straightforward, we’re in and out in ninety minutes. If it is not, you want someone who has done it before and carries the parts to solve it without a second trip. Call (914) 409-9387 and we’ll walk through what you’re seeing.
FAQs
Twenty to thirty years is typical, though we’ve seen original units fail at fifteen in homes with frequent fireplace use and poor chimney caps, and we’ve seen forty-year-old dampers still sealing tight in well-maintained systems. Bedford’s freeze-thaw cycles and the acidity of oak and maple smoke are harder on the metal than milder climates. Annual inspection catches frame rust before it becomes a full replacement.
Sometimes. A sheared linkage pin, a worn handle, or a loose pivot bolt can be fixed without replacing the frame or plate. If the throat plate is cracked, warped more than 1/8-inch, or the frame is rust-pitted, replacement is the only sound repair. We won’t charge you for a full assembly if a $30 pin and thirty minutes of labor solves it. If it needs doing, we will tell you. If it does not, we will tell you that too.
Most Olympia Chimney damper replacements take sixty to ninety minutes from ladder set-up to final seal check. If the frame bolts are seized or the smoke shelf needs significant cleaning, plan on two hours. We complete most jobs in a single visit, and we carry the full range of Olympia Chimney and compatible Gelco assemblies on the truck.
Yes. We stock OCD-30 and OCD-36 throat assemblies, OCD-RK retrofit kits, and the full range of linkage components and hardware. For less common Olympia Chimney sizes or older discontinued models, we can typically source within two business days through our distributor. Call (914) 409-9387 with your model stamp or measurements and we’ll confirm what we have before we schedule.
Ready to stop the draft and get your fireplace back in service? Call Hearthstone Chimney Co. at (914) 409-9387 for a free estimate. A live person answers twenty-four hours a day, and we’ll schedule a camera inspection at your convenience. No-hassle upfront pricing, photos you can see, and a plain-English verdict on what your Olympia Chimney damper actually needs.
Written by Russell Haines, Owner, Hearthstone Chimney Co. at Hearthstone Chimney Co., serving Bedford and nearby areas.





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