107 Ben Hamby Ln, Greenville SC 29615
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Chimney Repair · Pelham Road Greenville SC

Chimney Repair
Pelham Road Greenville

Chimney repair for Pelham Road's 1970s–90s homes — gas insert liner correction, flue tile joint repair, crown rebuild, and flashing reset. Written scope before work begins.

CSIA Certified
Liner Assessment
Masonry Repair
Written Scope
(864) 794-6932
Mon–Fri 8am–6pm · Sat 9am–4pm · Emergency 24/7
Schedule Repair Assessment
Mon–Fri 8am–6pm
Sat 9am–4pm · Emergency 24/7
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Original Clay Tile vs. Gas Insert Requirements

Why the Original Liner Creates Repair Needs in Gas Insert Chimneys

Pelham Road's original masonry fireplace chimneys were designed for wood combustion — hot, high-volume exhaust that fully ventilated through the large clay tile liner. Gas inserts produce cooler, lower-volume exhaust that behaves differently in the same flue.

Original Clay Tile — Oversized for Gas Insert

  • Flue cross-section designed for wood-burning draft volume — gas insert exhaust volume is a fraction of what the flue was sized for
  • Slow-moving gas exhaust cools before it reaches the crown — water vapor condenses on the tile surface and contacts mortar joints
  • Acidic condensate from gas combustion dissolves the mortar binder in tile joints over repeated use cycles
  • Moisture migrates through failed tile joints into the surrounding masonry — appears as efflorescence on the exterior
  • Damage occurs in the section of the liner behind the insert where it cannot be observed without camera access

After Repair — What Changes

  • Failed tile joints in accessible sections repaired with appropriate mortar — reduces moisture migration into masonry surround
  • Exterior tuckpointing stops water from outside compounding the interior condensate moisture load
  • Crown repair closes the primary external water entry point at the flue tile collar
  • If tile joint failure is extensive, relining with a properly sized flexible liner resolves the oversizing issue at the source
  • Camera documentation provides a baseline record of liner condition before and after repair

Six Repair Focus Areas — Pelham Road Gas Insert Chimneys

Liner Tile Joints

Mortar between clay tile sections dissolves from acidic condensate — repair or relining depending on extent

Crown Joint

Tile collar joint at the crown separates from thermal cycling — primary external water entry point

Exterior Tuckpointing

Open exterior joints allow external water to compound interior condensate moisture — closed with matched mortar

Firebox Surround

Masonry immediately around the insert opening where the steel body contacts the firebox — mortar repair in accessible sections

Flashing

Step and counter-flashing at the roof line — separate from liner issues but often deferred alongside them

Camera Documentation

Baseline record of liner condition behind the insert — documents repair starting point and post-repair improvement

FAQ

Chimney Repair Questions — Pelham Road Greenville

Gas inserts require the liner to be correctly sized for the insert's BTU output. An oversized clay tile flue designed for wood-burning is too large for gas insert exhaust — the exhaust cools before exiting, deposits acidic condensate on the liner walls, and attacks tile mortar joints. This condensate migrates through failed joints into the surrounding masonry. The most common masonry repairs are crown joint repair at the tile collar, exterior tuckpointing where condensate has tracked outward, and firebox mortar repair in sections not covered by the insert body.
Yes — when a gas insert is installed in a masonry fireplace, a listed flexible liner typically runs from the insert collar at the firebox opening to the top of the chimney. The liner connects the insert exhaust to the outside, bypassing the original clay tile liner. The original clay tile remains in place as the chase around the new flexible liner. If the clay tile has structural damage, those repairs matter for chase integrity even though gas exhaust no longer contacts the clay tile directly.
Exterior tuckpointing approximately $350–$900. Crown repair approximately $250–$700. Interior liner tile joint repair where accessible approximately $400–$800. Flashing repair approximately $400–$950. Full scope and pricing confirmed on-site before work begins.
Related Services
Chimney Repair — Pelham Road Greenville SC
Gas insert liner assessment, clay tile joint repair, crown restoration, exterior tuckpointing, and flashing repair for Pelham Road's 1970s–1990s masonry chimneys. Written scope before work begins. Pricing confirmed on-site.
Mon–Fri 8am–6pm · Sat 9am–4pm · Emergency 24/7