How to Repair Spalling Brickwork. How to repair spalling brickwork. Spalling brickwork is a problem for many householders especially if the bricks in question happen to be soft reds as these are more prone to the effects of weathering and they are not very resistant to frost.ow to Repair Spalling Brickwork. How to repair spalling brickwork. Spalling brickwork is a problem for many householders especially if the bricks in question happen to be soft reds as these are more prone to the effects of weathering and they are not very resistant to frost.