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Mortar is meant to wear out. The bricks aren't.
Mortar is the sacrificial part of a brick wall. It's designed to be softer than the brick so that movement, salt and weathering attack the joint instead of the masonry. That's why it goes powdery and recedes after 40 or 50 years — it's doing its job.
Once the joint is gone, wind-driven rain runs straight into the wall cavity and the bricks start taking the load and the weather themselves. Repointing restores the joint before the damage moves to the part you can't replace.
When a wall needs repointing
Raked or recessed joints — mortar sitting well behind the brick face, or crumbling out when you scratch it with a key
Damp on the inside wall with no plumbing or roof source, particularly on the weather-facing elevation
White salt staining (efflorescence) on the brickwork — water is moving through the wall and carrying salts out with it
Loose or dropped mortar collecting on ledges, awnings and the ground below
Mortar can be replaced. Brick faces can't.
Once the joints go, the weather starts on the masonry. We'll check the joint depth and the brick type and price what actually needs doing.
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