Olympia Chimney Damper Repair Nationwide

Olympia Chimney Damper Repair: The Tacoma Owner’s Guide

Olympia Chimney damper repair in Tacoma typically runs $340-$580 installed, depending on whether we’re replacing the plate, the frame, or the full assembly. We stock common Olympia Chimney damper sizes on our trucks, and most replacements are completed in under two hours once the inspection is done. Our crew works with Olympia Chimney, DuraFlex, HeatShield, and Gelco parts daily, so we can match the right component to your flue size without a second trip.

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Most Tacoma homeowners figure out their damper has failed on the first cold night in October, when they open it and feel cold air pouring down anyway, or when they shut it and still smell fireplace smoke in the upstairs hallway the next morning. The cast-iron plate warps, the pivot pins seize in their brackets, or the chain handle pulls free from a corroded attachment point. In the North End and Proctor District, where many homes were built between 1920 and 1950, we regularly see dampers that haven’t sealed properly since the Clinton administration.

Which Olympia Chimney Models This Applies To

Olympia Chimney manufactures throat dampers and top-sealing dampers under several product lines, and the part you need depends on when your chimney was built and how the flue is sized. The most common call we get in Tacoma is for the Olympia Chimney cast-iron throat damper, typically found in 8-inch by 8-inch or 8-inch by 13-inch clay flue tiles. These use a rectangular plate with offset pivot pins that seat into wrought-iron side brackets mortared directly into the smoke chamber walls.

To identify your part, look up from the firebox with a flashlight. You’ll see a stamped metal tag on the damper frame, or you can measure the plate width and the distance between bracket centers. The Olympia Chimney top-sealing damper, by contrast, mounts on the flue cap and uses a cable running down the flue to a handle assembly near the fireplace opening. These are model-specific to flue diameter, usually 8, 10, or 12 inches, and the cable length must match your chimney height.

We source OEM Olympia Chimney dampers through Haven’s buying network, and we also carry quality aftermarket equivalents from Gelco and Famco when the original part is back-ordered or discontinued. For most Tacoma homes built before 1980, an aftermarket cast-iron plate with stainless pivot hardware outlasts the original specification, especially given our wet winters and the thermal cycling that happens when a Pacific storm front drops the temperature twenty degrees overnight.

Signs Your Olympia Chimney Damper Is Failing

• Draft reversal on windy days. When the damper plate doesn’t seat flat against the frame, pressure differentials pull air down the flue instead of drawing smoke up. In Tacoma’s hillside neighborhoods like Proctor and the North Slope, this shows up as a cold blast across your ankles even with the damper “closed.”
• Smoke smell hours after the fire is out. A warped plate leaves a gap at one corner. Combustion gases and particulate slip past, filter through the house, and settle into upholstery. If you’re noticing this in a home you bought after 2015, the previous owner probably learned to live with it.
• The handle moves but the plate doesn’t. The linkage between the rotary control or chain lift and the plate itself has corroded through, or the pivot pins have seized in their brackets. This is common in homes within a mile of Puget Sound, where salt air accelerates rust on cast iron.
• Visible rust flakes or spalling on the plate surface. Cast iron doesn’t rust through quickly, but once the surface starts flaking, the plate loses mass and won’t seal. We photograph this during our camera scan so you can see exactly how much daylight shows around the edge.
• Water stains on the firebox floor after heavy rain. A failed damper is often the entry point, but the real problem may be a missing or damaged rain cap above. We check both during our Level 2 inspection, because replacing the damper while leaving the cap off is a waste of your money.

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Replacement Cost & What’s Included

What moves you up or down within these ranges: flue tile condition (spalled tiles need repair before a new frame will seat), accessibility (a narrow firebox in a 1920s craftsman takes longer to work in), and whether we need to custom-order an odd size. We deliver a written price before any work starts, per Haven Standard Clause 1. That price includes the part, the labor, and the documentation, with no add-ons after the fact.

Every damper replacement carries our 365-Day Done Right Promise. If it doesn’t seal, if the handle binds, or if anything about the operation isn’t right, we come back and make it right.

DIY or Call Us?

There’s one thing you can safely check yourself: whether the handle or chain is actually connected to the plate. Shine a flashlight up the flue from the firebox and have someone work the control. If the plate doesn’t tilt, you’ve got a linkage or pin failure.

Everything else is better left to someone with the right tools and the camera to verify the result. Removing a throat damper frame means working in the smoke chamber, often on your back, with debris falling into your eyes. The pivot brackets are mortared into place; knocking them loose without cracking the surrounding flue tile takes a practiced hand. And without a video scan afterward, you have no way to confirm the new plate seals all the way around. The camera doesn’t guess. Neither do we.

We’re not affiliated with Olympia Chimney, but we’ve installed and warrantied their parts across Tacoma since 2009. If you want a second opinion on another company’s quote, bring it to us. It’s free.

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