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.
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.
Mortar between clay tile sections dissolves from acidic condensate — repair or relining depending on extent
Tile collar joint at the crown separates from thermal cycling — primary external water entry point
Open exterior joints allow external water to compound interior condensate moisture — closed with matched mortar
Masonry immediately around the insert opening where the steel body contacts the firebox — mortar repair in accessible sections
Step and counter-flashing at the roof line — separate from liner issues but often deferred alongside them
Baseline record of liner condition behind the insert — documents repair starting point and post-repair improvement