Chimney Repair Calgary

Why Calgary Chimneys Fail

A chimney is a masonry tower with no shelter, freezing and thawing dozens of times a season. The failure sequence is nearly always the same, and it starts at the top.

1. The crown cracks

The concrete cap splits from thermal cycling, and every rain and melt now drains into the stack instead of off it.

2. Joints and brick soak

Water inside the masonry freezes, pries joints open and pops brick faces. White efflorescence staining is the visible symptom.

3. The top lets go

Loose brick above the roofline is a falling hazard and a rebuild. Caught early, this is a repointing job; caught late, it's scaffolding.

What We Repair, Rebuild And Pour

Crowns: cracked caps ground off and re-poured with reinforced concrete, proper overhang and drip edge, then sealed. The single highest-value repair on any chimney.

Repointing: failed joints cut out and refilled with mortar matched to the brick in strength and colour, tooled to the original profile. The same method we use on heritage masonry.

Brick replacement and rebuilds: spalled units cut out and matched; leaning or crumbling top sections rebuilt from sound courses up.

What we don't do: flue sweeping, liners and WETT inspections. That's a different trade, we'll refer you to it honestly, and the sweeps send us their masonry finds in return.

Brick repointing in progress in Calgary, failed mortar raked out and fresh matched joints installed — Joint restoration in progress: the same raking, matching and tooling every chimney repoint gets.

Chimney Season Is August To November

Masonry cures properly in warm weather, and a sealed chimney going into winter is the whole point of the repair. Calgary's chimney calendar fills between the first cool nights and the first hard frost, so if the crown cracked last winter, this is the window to fix it. Book the assessment now and the stack goes into December watertight. Multi-stack and commercial buildings: commercial services →

Book a chimney assessment

CHIMNEY REPAIR FAQ

What Calgary homeowners ask first.

What is a chimney crown and why does mine keep cracking? +

The crown is the concrete cap that sheds water off the top of the stack. Thin, unreinforced crowns, common on older Calgary homes, crack from thermal cycling, and every crack drains water directly into the masonry below. We pour proper crowns with overhang and drip edge so water leaves the chimney instead of entering it.

What does white staining on my chimney mean? +

Efflorescence: minerals carried to the surface by water moving through the masonry. It's the chimney telling you water is getting in, usually through the crown or failed joints. The staining itself is cosmetic; what's causing it isn't.

Can you rebuild just the top of the chimney? +

Yes, that's the most common rebuild we do. The top courses take the worst exposure and often fail while the rest of the stack is sound. We rebuild from sound masonry up with matched brick, fresh flashing line, and a proper crown.

Do you sweep chimneys or do WETT inspections? +

No, and we won't pretend to. We're masons: crowns, joints, brick and structure. For flue cleaning and WETT-certified inspections we'll happily point you to people who do that all day, and they send us the masonry problems they find.

When should chimney work be done in Calgary? +

Late summer through fall. Mortar and concrete need above-freezing cures, and you want the stack sealed before the first hard frost, not patched in February under a tarp.

Get A Free Quote