Record the render crack and any changes
Record the crack's location and whether it has changed. Lines around a window, along a junction or across an old patch can be described without drawing conclusions about their cause. Previous repair history is especially useful when the same area has reopened.
Check the render and wall background
The render type, attachment and background need consideration alongside the crack. Movement or another underlying issue may require separate advice before a surface repair is chosen. Do not assume that a narrow line is purely cosmetic or that painting over it settles the problem.
Agree compatible crack repair work
The repair should be compatible with the existing system and the assessed cause. If surrounding material is missing or unsound, the scope may become a patch repair rather than crack-only work. Agree what is known and what still depends on inspection.
Assess appearance and wider deterioration
Local repair may remain visible because the existing surface has weathered. A larger finish can be considered where consistency matters, but widespread deterioration may also change the technical scope. Distinguish optional appearance work from the repair required to the damaged material.
Prepare the crack history and access details
Provide whole-elevation and close-up photographs taken safely, earlier repair details and any known material information. Note height and access restrictions. The quote should state preparation, repair extent and finishing responsibilities without promising that a crack can never recur.
PRACTICAL SERVICE DETAILS
Common questions
Why has a repaired render crack reopened?
The cause may remain unresolved or the repair may not suit the condition and system. Repeated opening is a reason to reassess the area.
Can a crack repair be invisible?
An exact match cannot be assumed. Texture, colour and weathering can make even a sound local repair visible until broader finishing is considered.
Does a crack mean the whole elevation needs replacement?
No. It depends on the cause, surrounding condition and system. Local repair and wider replacement should be compared after assessment.
Should cracks around windows be assessed differently?
The junction and surrounding construction need consideration, as with other locations. Describe the position and history rather than choosing a repair solely from the crack's shape.
