There are bumps at regular intervals along my wall.

What is it?

The bumps or little projections are called undulations, and are usually caused by little cracks and splits that appear in the surface as your building “settles”. These imperfections are usually visible near corners, around windows and doors, or at joints of the wall.

What are the possible causes?

  • This is caused due to imperfect plastering.
  • The cracks develop over time as your building settles or suffers damage.

How can I fix this problem?

  • If the undulations are minor, fill and level with stucco or putty. For major undulations on the wall surface, plaster work will be needed.
  • Sand to make the surface uniform.
  • Apply primer, filler and suitable topcoat.