Olympia Chimney Flue Liner Replacement Nationwide

Olympia Chimney Flue Liner Replacement: The Allentown Owner’s Guide

We stock and install Olympia Chimney-compatible flue liner replacement in Allentown, with most jobs running between $2,800 and $4,500 installed depending on height, diameter, and whether the existing liner is stainless or terracotta. Most replacements we book are completed in a single visit, and we carry common Olympia Chimney liner diameters on our trucks. Homeowners usually discover the problem during a routine sweep when our camera finds cracked terracotta, gaps at the mortar joints, or rust flakes dropping into the firebox - sometimes after smelling smoke in an upstairs bedroom or noticing the fireplace isn’t drafting like it used to.

Call (610) 632-1394

Which Olympia Chimney Models This Applies To

Olympia Chimney manufactures flexible stainless liners in 316Ti and 304 alloys, typically sold in diameters from 3 to 10 inches to fit wood-burning, pellet, and gas appliances. The critical match is between your appliance’s BTU output and the liner’s inner diameter - an undersized liner creates creosote buildup and backdrafting; oversized runs cold and stains the exterior masonry with acidic condensation.

To identify what you need, check the metal tag on your existing liner collar (usually visible from the firebox looking up) or the original installation paperwork for the series designation - OCF for flexible corrugated, OCS for smooth-wall. If the tag’s corroded, we measure with a drop tape and borescope. Olympia’s 316Ti carries a lifetime warranty when paired with their proprietary top plate and collar system; mixing in a generic aftermarket collar voids that protection. We stock both OEM Olympia collars and compatible DuraFlex transitions, and we’ll walk you through which makes sense for your setup.

Signs Your Olympia Chimney Flue Liner Replacement Is Failing

• Smoke or odors on upper floors. A cracked terracotta liner or separated stainless joint lets combustion gases leak through the chimney wall into framing cavities. In Allentown’s older homes near West Park, we’ve seen this travel through balloon framing and set off smoke detectors two floors up.
• White efflorescence or spalling brick on the exterior. Flue gases escaping through liner gaps condense into sulfuric acid that eats mortar from the inside out. The white salt deposits are the warning; crumbling brick face means it’s been happening for seasons.
• Rust flakes or black debris in the firebox. A failing stainless liner corrodes from the inside, especially if the appliance was ever converted from wood to gas without resizing. The flakes are your liner shedding wall thickness.
• Draft that worsens on windy days. Gaps in the liner destroy the stable column of rising air the chimney needs. Allentown’s valley location already creates tricky pressure patterns; a compromised liner makes the fireplace unusable in certain weather.
• Visible cracks when looking up from the firebox. Terracotta liners crack from thermal shock - rapid heating after a long cold spell, common in Pennsylvania shoulder seasons. Once cracked, they cannot be reliably patched.

Replacement Cost & What’s Included

The spread depends on chimney height (a three-story Allentown twin versus a single-story ranch), whether we’re fishing through an existing terracotta flue or rebuilding from a demolished liner, and if the appliance connection needs modification. We price every job upfront after camera inspection - the number on the estimate is the number on the invoice. Our 90-Day Done Right Promise covers the installation; Olympia’s material warranty covers the liner itself.

DIY or Call Us?

An owner can safely check the firebox and damper area for debris, rust flakes, or visible cracks looking up the flue. Do not attempt to climb the roof to inspect the liner top - the slope angles on Allentown’s older homes are steeper than they appear, and the liner connection requires proper fall protection to assess.

Installing a flue liner involves working at height with heavy stainless coil, proper insulation techniques, and NFPA 211 clearance verification. A dropped section damages the liner and the roof below. A gap at the top plate creates a carbon monoxide path into living space. We complete most liner replacements in one visit with two technicians and the right staging equipment. The chimney doesn’t care what it looks like from the street. We check what’s inside.

Call (610) 632-1394 for a free estimate - we’ll camera the flue and show you exactly what we found.

FAQs