New cracks or recurring wall damage
Note where the crack appears, whether it has changed and any earlier repairs. Lines near an opening, in a previous patch or across a wall are useful descriptions, but appearance alone cannot establish their cause. Keep the history alongside photographs rather than relying on one close-up.
Checks before repairing cracked plaster
An assessment may need to consider the plaster background, adjoining construction and signs of movement or moisture. Some situations require another professional's input before a plaster repair is specified. Avoid using a simple crack-width rule as proof that the problem is only cosmetic.
Match the repair to the assessed cause
The repair should follow the assessed cause and condition. Local treatment may be appropriate for an otherwise suitable surface, while loose surrounding plaster changes the scope. Covering a recurring crack with another skim does not, by itself, resolve why the crack appeared.
Blend the repair with surrounding plaster
After the defect is addressed, agree whether the finish is local or extends across the wall. A repaired area can differ from old paint or texture, so decoration may need to be wider than the repair itself. Include adjacent corners and reveals where relevant.
Record the wall crack history
Have the date noticed, previous repair details and any related building work ready. If the crack is actually overhead, use the ceiling-repair route so the construction and access are considered properly. Make clear whether you want only repair or a new finish across the room.
PRACTICAL SERVICE DETAILS
Common questions
Why has a repaired crack returned?
Its cause may still be present, or a junction or background issue may not have been resolved. A returning crack needs reassessment rather than another assumed cosmetic fix.
Can a crack be skimmed over?
Only after deciding that the background and repair are suitable. A skim is a finish, not a diagnosis or a guarantee against further cracking.
How do I know whether another specialist is needed?
Describe any change, recurrence and related symptoms to the person assessing the wall. They can identify whether the plastering scope depends on another inspection.
Will the entire wall need repainting?
It may, particularly where the existing colour or sheen makes a patch visible. Agree repair and decoration boundaries separately.
