HeatShield Flue Liner Replacement Nationwide

HeatShield Flue Liner Replacement: The Roanoke Owner’s Guide

HeatShield flue liner replacement in Roanoke typically runs $1,800 to $3,400 installed, depending on liner diameter and whether the existing clay flue needs full extraction or can be relined in place. We stock HeatShield-compatible stainless and cerfractory flue liner materials on our trucks, and most replacements are completed in a single day. Most Roanoke homeowners discover the problem during a routine sweep when our camera finds spalling tile, gaps at the mortar joints, or a liner that has shifted after decades of freeze-thaw cycling in the Blue Ridge winters.

Call (540) 787-3302

A clean chimney doesn’t announce itself. Neither does a problem - until it does.

Which HeatShield Models This Applies To

HeatShield builds two distinct systems that Roanoke homes use: the Cerfractory spray-applied resurfacing system for sound clay flues with minor gaps or spalling, and the stainless steel relining kits for structurally compromised flues that need full replacement. The Cerfractory system is model-agnostic - it bonds to standard clay flue tile dimensions from 6″ to 12″ round or square. The stainless kits carry series numbers (HS-316, HS-304) that correspond to alloy grade and insulation wrap configuration.

To identify what you have, check the metal tag at the top of the flue or the documentation left by the original installer. If the tag reads “HeatShield UL 1777,” you have a listed relining system. No tag usually means a generic liner was used, and we’ll measure with a caliper on site. We are an independent service provider - not affiliated with HeatShield - but we source their listed components through authorized distribution and will not substitute builder-grade equivalents. For homes in Cave Spring or Grandin Court with pre-1990 masonry, we often find the original clay flue is 8″ x 8″ square, which requires a custom-fabricated transition collar that HeatShield stocks but many competitors skip.

Signs Your HeatShield Flue Liner Replacement Is Failing

• White efflorescence or powder on the firebox walls. This is moisture pulling through degraded mortar joints where the liner has separated from the flue wall. In Roanoke’s humid summers, this accelerates once the bond breaks.
• Bits of clay tile in the firebox or cleanout. Spalling tile means the flue liner is shedding structural material. The pieces are sharp, brittle, and a sign the liner is no longer containing combustion gases.
• Smoke drafting into the room on startup. A liner that has shifted, settled, or developed gaps loses the negative pressure that pulls smoke upward. This is especially common in homes along the Roanoke River floodplain where foundation settling occurs.
• Strong odor from the fireplace in summer. Creosote trapped behind a separated liner warms and off-gasses when humidity rises. The smell is often mistaken for a dead animal; it’s actually a liner breach.
• Discoloration or rust on the damper frame. Moisture and acidic condensate leaking through liner gaps corrodes metal components above the firebox. If your damper is seizing, check the liner first.

Replacement Cost & What’s Included

The range depends on three factors: liner diameter, whether we can drop the new liner without removing the clay flue, and whether the chimney crown needs rebuild to seal the new top plate. Our estimate includes the Level-2 camera inspection, photos you can see, removal and disposal of the failed liner, installation of the HeatShield-compatible replacement, a new top plate and rain cap, and cleanup. The number on the estimate is the number on the invoice. Every liner replacement carries our 90-Day Done Right Promise - in writing, no arguing - and the manufacturer’s warranty on materials.

DIY or Call Us?

There is one thing a homeowner can safely check: shine a flashlight up the flue from the firebox and look for visible gaps, shifted tile, or debris you did not put there. Do not attempt to measure, remove, or replace a flue liner yourself. The work requires working at height on a steep roof, handling sharp stainless sections in a confined space, and properly sealing the system to UL 1777 standards. A poorly seated liner leaks carbon monoxide into wall cavities - odorless, invisible, and lethal.

We carry HeatShield-compatible liner diameters from 6″ to 12″ on our trucks, along with DuraFlex and Gelco alternatives when the application calls for them. Most replacements are completed in a single visit. Call (540) 787-3302 for a free estimate with upfront pricing.

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