Olympia Chimney Damper Repair Nationwide

Olympia Chimney Damper Repair: The Allentown Owner’s Guide

We stock and install Olympia Chimney-compatible damper assemblies and hardware across Allentown, with most repairs running $280-$520 installed depending on model series and whether the frame needs replacement. Parts for common Olympia Chimney models are on our trucks, so we can usually complete the job in a single visit. Most Allentown homeowners discover the problem when smoke backs into the room on first fire of the season, or when they notice cold drafts even with the damper supposedly closed.

Call (610) 632-1394

Which Olympia Chimney Models This Applies To

Olympia Chimney produces several damper configurations, and matching the right assembly matters. The cast-iron throat dampers found in their 8-inch through 13-inch masonry flue lines are the most common in Allentown homes built between 1965 and 1995, particularly in the West Park neighborhood where we’ve worked dozens of these systems. Newer installations may use their top-sealing damper models, which mount at the flue crown rather than the throat.

To identify yours, look for the Olympia Chimney stamp on the damper frame, usually visible from the firebox with a flashlight. Measure the flue opening width and depth - their cast-iron units run in half-inch increments from 8″×8″ up to 13″×13″, and a 12″×12″ frame will not seat properly in a 11.5″×11.5″ opening no matter how close it looks. We carry both OEM Olympia Chimney replacement dampers and quality aftermarket equivalents from Gelco and Copperfield. For most Allentown applications, the aftermarket units match spec and carry comparable warranties at lower cost. Hearthstone Chimney Co. is an independent service provider, not affiliated with Olympia Chimney.

Signs Your Olympia Chimney Damper Repair Is Failing

• Smoke rolls back into the room on startup. The damper plate is warped or the frame has rusted out of true, leaving a gap that prevents proper draw. In Allentown’s wet spring seasons, we’ve seen rust accelerate this failure in homes with marginal chimney caps.
• Cold air falls down the flue even when “closed.” The plate seal has degraded or the pivot pin has worn oval, letting the plate hang slightly open. You’ll feel it as a persistent draft near the hearth, sometimes carrying soot odor.
• The handle turns but the plate doesn’t move. The linkage between control handle and damper plate has corroded through or the cotter pin has sheared. On Olympia Chimney’s older cast-iron models, this linkage sits in the smoke chamber where creosote corrosion is constant.
• The plate is stuck completely open or closed. Thermal warping has bound the plate in the frame, or rust has fused the pivot. Forcing the handle usually snaps the linkage or cracks the frame.
• Visible rust flakes or cracks in the plate from below. Cast iron fatigues with thermal cycling, and Allentown’s freeze-thaw winters stress these plates harder than milder climates. Once cracking starts, replacement is the only sound option.

Replacement Cost & What’s Included

These are installed prices: part, labor, and our Level-2 camera inspection with photos you receive. The range reflects flue size, whether the damper frame itself has rotted out (not just the plate), and access difficulty. Some Allentown homes with deep smoke chambers or narrow firebox openings take longer. We quote upfront before starting - the number on the estimate is the number on the invoice. Every damper repair carries our 90-Day Done Right Promise in writing: if it’s not right, we come back, no arguing.

DIY or Call Us?

An owner can safely check whether the damper handle moves freely and whether the plate opens and closes fully - use a flashlight, look up, and watch while someone works the control. What you cannot safely do is remove or replace the assembly. The damper sits at the base of the flue, above the firebox, in a space that requires proper ladder positioning and often smoke chamber access. More critically, disturbing a rusted frame can drop debris into the flue or damage the smoke chamber walls, creating a fire hazard you’d never see from below.

We’ve been called to Allentown homes where a DIY attempt cracked the flue liner or dislodged the frame, turning a $350 damper job into a $1,800 liner repair. The chimney doesn’t care what it looks like from the street. We check what’s inside. Call (610) 632-1394 and we’ll give you a straight answer on what yours needs.

FAQs