Canadian winter is pretty hard on chimney brickwork, with the constant freeze/thaw cycle. Each spring, larger and larger bits of brick hit the ground so I decided it was time for some repairs. The fancy brickwork around the top looked nice but didn't help matters. It held the moisture and encouraged mould and lichen.
The two metal chimney liners are vents for gas fireplaces. The third chimney isn't used, but has a cap on it to keep animals out. A few years ago, a raccoon family used that chimney for access to their nice cosy nest behind my basement wall, but that's another story.
The brickie put up his scaffolding and removed ten courses of brick, and the rotten flues on the inside.
He couldn't match the brick colour exactly, but that's OK. How often do you look up and admire the chimney? Not often, unless like me you've just spent megabucks on getting it repaired.
New flues were installed and the detailed top has been replaced with a poured concrete cap.
Not so fancy, but much more practical, and I'm looking forward to a whole lot fewer shards of brick and crumbling mortar blocking the eavestroughs each spring.