Cavity brick or concrete block veneer – crumbling mortar

Cause

Weathering

Repair

  • it is likely that the loose mortar will need raking out and repointing

  • it is possible for a homeowner to do this work themselves, but they should only do it if they have the skills, experience, knowledge and tools to ensure a durable and weathertight job

  • most people should consult an experienced bricklayer. Ensure that they are a licensed building practitioner with a bricklaying and blocklaying licence

Cause

Mortar quality is poor – most commonly found in pre-1930s buildings

Repair

  • as for the first repair above

Cause

Use of lime mortar

Repair

  • as for the first repair above

Cause

Foliage (creepers, vines) growing on building

Repair

  • remove the foliage growing on the building and any soil built up against the bricks

  • as for the first repair above