Why is the plaster detaching?
Short answer: Plaster usually detaches due to moisture, wrong materials or movement in the substrate.
The right fix depends on cause and scope.
Moisture behind the plaster
If moisture gets in, the plaster can lose adhesion and detach in sheets.
Wrong mortar or method
Too hard or too dense mortar can create stress that causes detachment—especially if it’s incompatible with the substrate. Read more: lime mortar vs cement.
We can also help fix it through plastering and repairs.
Movement in the substrate
Small movements in the masonry can cause detachment, especially with incompatible materials.
How do I know the scope?
An on-site assessment shows if it is local detachment or broader issues.
When should you fix it?
If plaster is detaching in sheets or moisture is getting in, it should be fixed soon.
How it works
We assess the cause and recommend local repairs, re-rendering or adjusting the system/materials. The goal is a repair that lasts—not just a quick surface patch.
Book an assessment
Describe the issue (photos help) and we’ll get back with next steps. Contact us here. Read more about us on the homepage.
