Service · Toronto & GTA
Chimney Repair
Tuckpointing, crown repair, spalling brick, and repointing, before small failures become structural ones. Minimum 10-year warranty.
Most chimney failures don’t start as structural events. They start as failed mortar joints, a cracked crown, or a missing cap, and they get worse every winter because water gets in where it didn’t before.
Toronto’s freeze-thaw cycle is among the most aggressive in North America for masonry. When mortar erodes past the face of the brick, water enters the joint, freezes, and expands, widening the joint further. The crown is the first line of defence and is frequently the first thing to fail.
Caught early, chimney repair costs a fraction of a rebuild. Caught late, after water has been cycling through the joint for three or four winters, it doesn’t. This is why we provide a written assessment before any work begins: the repair scope must match the actual failure, not a visual guess from the ground.
- White staining (efflorescence) on any chimney face, water is moving through the masonry
- Mortar joints recessed more than 5mm, a threshold for active water infiltration
- Cracked or deteriorating cap or crown, the most common entry point for water
- Loose or displaced bricks, particularly at the top courses or shoulders
- Rust staining from the flashing line, indicating the masonry-to-flashing seal has failed
- Interior staining on ceilings or walls adjacent to the chimney stack
- Mortar dust or brick debris accumulating in the firebox or cleanout
The crown is fixed before the joints. That order isn’t preference, it’s basic sequencing. Repointing under a failing crown is money spent twice.
Drone inspection
For chimneys where roofline access is limited, we use drone photography to document mortar joint depth, crown condition, and brick integrity before quoting.
Scope definition
We document which courses, faces, and joints are affected. The quote covers exactly that scope, not a rough estimate adjusted on site.
Crown and cap
We address the crown and cap before any joint work below. A new crown or cap protects everything underneath it from the day it’s installed.
Repoint and seal
Joints are raked to sound mortar, profiled, and filled with a blend matched to the existing. A masonry sealer is applied to repaired faces where appropriate.
Minimum warranty
On all tuckpointing and repair work
Mortar matching
Colour and texture assessed on-site
Written scope
Before any work begins
Tuckpointing is the process of removing deteriorated mortar from joints and filling them with fresh mortar. It’s needed when joints have eroded past the face of the brick, allowing water infiltration. It’s distinct from full repointing, which replaces all mortar, and is used where erosion is localised.
From the ground, horizontal cracking across the top of the cap is sometimes visible with binoculars. A reliable assessment requires roofline access or drone photography. Signs at ground level include staining below the cap and interior moisture near the chimney. We assess the crown on every site visit.
Yes, with conditions. We use cold-weather mortar additives and protection for fresh work between -5°C and 5°C. Work is not done below -10°C or during active precipitation. We schedule with seasonal conditions in mind and advise on timing at the assessment.
Efflorescence is the white salt deposit left when water moves through masonry and evaporates at the surface. The staining itself is not structural damage, it’s a symptom. The underlying cause is water moving through the masonry via failed joints or crown. If you’re seeing it, something is allowing water ingress that should be addressed.
Small repairs now. Not a rebuild later.
Request an AssessmentOr call (647) 678-6456 · Mon–Sun 9am–8pm