How much would a full chimney rebuild from the roofline up cost in Toronto right now?

A full chimney rebuild from the roofline up in Toronto currently costs between $5,000 and $15,000, with most standard residential chimneys falling in the $7,000 to $12,000 range. The final cost depends on the chimney's height above the roofline, its cross-section size, brick type, flue liner requirements, accessibility, and scaffolding needs.

A chimney rebuild from the roofline up — sometimes called a partial rebuild — involves carefully dismantling the chimney down to the roofline, inspecting the base structure, and rebuilding with new brick, mortar, flue liner, flashing, crown, and cap. This is one of the more involved masonry projects on a residential home and requires an experienced mason working at height with proper scaffolding or staging.

Cost breakdown for a typical Toronto chimney rebuild: the demolition and removal of the existing chimney above the roofline runs $500 to $1,500. New brick and Type S mortar (the standard for exposed chimney applications in Ontario) for the rebuild runs $2,000 to $5,000 depending on chimney size and height. A stainless steel flue liner, if needed, adds $1,500 to $4,000 — many older Toronto homes have clay flue liners that are cracked or deteriorated and should be replaced during a rebuild. A properly constructed chimney crown with overhang and drip edge runs $500 to $1,500. New step and counter flashing where the chimney meets the roof adds $500 to $1,500 — this is critical to prevent water entry at the roof junction and should always be done during a rebuild, not reused. A stainless steel chimney cap runs $200 to $800. Scaffolding typically adds $500 to $1,500 and is virtually always required for chimney work above the roofline.

If you want the chimney to match your existing brick, expect to pay a premium. Matching heritage or discontinued brick requires sourcing from salvage yards or specialty suppliers, and the mason must carefully match mortar colour and joint style. For newer homes with commonly available brick, matching is straightforward. Some homeowners take the opportunity during a rebuild to upgrade the chimney's appearance — adding a decorative corbel at the top, using contrasting brick accents, or installing a cultured stone veneer over the rebuilt chimney for a modern look.

Why chimneys fail in Toronto: the chimney is the single most exposed masonry structure on your home. It sits above the roofline with no shelter, taking the full force of wind-driven rain, ice storms, UV exposure, and Toronto's extreme temperature cycling. Over 50 freeze-thaw cycles per winter work moisture into mortar joints and brick, and without the protection of adjacent walls or overhangs, chimney masonry deteriorates far faster than the rest of the house. A chimney that was built in the 1960s or 1970s with standard mortar and no waterproofing sealer has endured 50-plus years of this punishment — at some point, repointing is no longer sufficient and a full rebuild becomes the only sound option.

The Ontario Building Code governs chimney construction and flue liner requirements, and structural chimney work may require a building permit from the City of Toronto ($200 to $800). Always verify with your local building department. Every contractor must carry WSIB coverage, and you should request a clearance certificate before work begins.

Get a minimum of three quotes from masons with specific chimney rebuild experience — this is specialized work, not general masonry. Toronto Parging can match you with experienced chimney and masonry contractors through the Toronto Construction Network.