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 Greenwich Owner’s Guide
Olympia Chimney damper repair in Greenwich typically runs $290-$560 installed, depending on the model and what’s seized. We stock Olympia Chimney-compatible damper assemblies and repair parts on our trucks, so most swaps happen same-visit, not days later. Most Greenwich homeowners find out their damper has failed the moment they try to close it and the handle won’t move, or they feel cold air pouring down the chimney in January and realize something’s not seated right.
Here’s the reality: Olympia dampers are well-built, but they live in the most punishing environment in your home. Twenty-plus years of wood smoke, creosote condensation, and coastal Connecticut humidity does to a cast-iron damper plate what it does to every other piece of metal exposed to that combination. The good news is that damper repair is usually a straightforward fix when you catch it early. The bad news is that waiting turns a $300 repair into a $1,200 lining problem, because a stuck or missing damper lets flue gases and moisture move in directions they were never meant to go.
Which Olympia Chimney Models This Applies To
Olympia Chimney produces dampers across three main lines, and the part you need depends on which one you have. The OG-series throat dampers, typically sized 30″ through 48″ for masonry fireplaces, are the ones we see most often in Greenwich homes built between 1960 and 1995. The V-series top-sealing dampers replace the Lyemance or Clayton-style units on older chimneys, and they save measurable heat loss when they’re working correctly. The LD-series are low-profile units for prefab fireboxes where clearance between the firebox and flue tile is tight.
Before you buy anything, look for two things. First, find the manufacturer’s stamp on the damper frame itself, usually on the underside of the plate or along the frame rail. Second, measure the flue opening width to the half-inch, because a 36″ damper frame is not the same as a 36″ firebox opening, and that’s the mistake that costs people a return trip to the parts counter. OEM Olympia parts fit exactly but run 20-30% more than a quality aftermarket equivalent, and for most OG and LD series repairs, the aftermarket cast-iron plate and hinge kit is functionally identical. The V-series is where we recommend staying with OEM: the top-seal geometry and the cable routing path are specific enough that generic substitutes bind.
Level Two Chimney Greenwich is an independent service provider, not affiliated with Olympia Chimney. We stock their parts because they hold up better than most, and because we can get them without passing along distributor markup that makes a simple repair cost more than it should.
Signs Your Olympia Chimney Damper Repair Is Failing

- The handle turns but the plate doesn’t move. This is almost always a sheared hinge pin or a corroded pivot rod. The handle gives you false feedback, so you think the damper’s doing its job while flue gases find another path. It’s the most common failure we see in Greenwich, and it’s repairable on-site in most cases.
- Cold air pours down the chimney even when the damper’s supposedly closed. A warped plate from years of heat cycling leaves a gap you can’t see from the firebox floor. We’ll confirm it with a camera, and you’ll see the daylight leaking through on the screen before we touch a bolt.
- You smell old smoke on humid days. A damper that won’t seal lets downdrafts pull stale creosote odor into the living room. Greenwich’s summer humidity makes this worse because it activates the creosote residue, so you’ll notice it more in August than in December.
- Visible rust or pitting on the plate edges when you look up with a flashlight. Cast iron doesn’t fail silently. By the time you can see rust, the plate’s lost enough structural margin that it will crack under the next major heat cycle.
- You hear metal dragging or grinding when you work the handle. That’s the plate scraping the frame rail, which means the hinge bearing surface has worn past its nominal clearance. Left alone, it digs a channel in the frame and turns a $300 repair into a full frame replacement.
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AfterReplacement Cost & What’s Included
For Greenwich jobs, here’s what we write on the invoice, and what actually drives the number:
- OG-series and LD-series plate/hinge repair: $290-$410 installed, parts included.
- Full damper frame replacement (any series): $410-$560 installed, parts included.
- V-series top-sealing damper replacement: $420-$590 installed, OEM Olympia parts included.
The range exists because of firebox access, not because we pad labor. A damper in a standard masonry firebox that we can reach standing up is faster than a damper in a raised hearth or a tight Rumford-style firebox where every tool movement has to be planned. You’ll get the written scope, the written price, and the written warranty before work starts, per Clause 1 of the Haven Standard. The warranty covers parts and labor for one year, and if it’s not done right, we come back and make it right under the 365-Day Done Right Promise. No invoice leaves the truck without a documented photo record of the work, before and after.
DIY or Call Us?

You can safely do the diagnostic part yourself: look up into the firebox with a flashlight and check whether the plate is visibly cracked, rusted through, or hanging at an angle. If any of those three things are true, stop there. Damper repair looks simple from the outside because the part is small, but the work happens in a firebox where your face, shoulders, and hands all have to occupy the same space at once, and where a dropped tool disappears down a smoke shelf with no way to retrieve it without a camera and a second person. Cast iron plates are heavy enough to crack a firebrick or do real damage to your hand when they shift unexpectedly.
The other reason we don’t recommend DIY damper work is evidence. When we install, we run the camera afterward and you get photos of the finished repair, the plate seating, and the cable routing. That’s Clause 4 of the Haven Standard: a photo record on every job. If you do it yourself and it fails, you have a receipt from a parts website and not much else. Corrine Halstead has seen enough DIY damper repairs to know which ones hold and which ones end up costing double because the frame got damaged in the process. Call (516) 399-5497 and we’ll give you a written price before anyone touches the chimney.
FAQs
Most Olympia dampers in this area last 20-30 years before the plate or hinge mechanism needs serious attention, but that number drops if the chimney’s been swept infrequently or if the damper was left partially open during humid summers. Greenwich’s proximity to the Sound means salt-air humidity accelerates plate corrosion by a few years compared to inland Fairfield County.
If the plate is intact and the frame rails are still square, we can rebuild the hinge mechanism and replace the rod assembly for about 60% of the cost of a full damper replacement. If the plate is cracked or the frame is warped, replacement is the honest answer, and we’ll show you the camera footage to prove it. Nothing gets recommended without evidence you can see yourself.
A standard OG-series damper repair runs 60-90 minutes from firebox setup to photo finish. Full frame replacements run two to three hours because the old frame has to be cut and ground out before the new one can be set. We clean the work area before we leave, and you’ll have the before-and-after photos before the van pulls away.
Yes. Our trucks carry OG-series plates and hinge kits in the four most common flue sizes, LD-series low-profile hardware, and V-series top-seal components in standard sizes. We also carry compatible parts from Famco and Copperfield for non-Olympia applications, which we mention only because some Greenwich chimneys have mixed hardware from prior repairs. If your specific part isn’t on the truck, we’ll have it in hand within two business days through our supplier network. Call (516) 399-5497 and we’ll confirm availability for your exact model before you book.
Written by Corrine Halstead, Owner, Level Two Chimney Greenwich at Level Two Chimney Greenwich, serving Greenwich and nearby areas.





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