Do not decide from age or appearance alone. Establish safety, likely cause, extent, remaining materials, drainage, loads, access and the professional or approval pathway before comparing repair and replacement scopes.
Questions that shape the decision
- Is the affected area isolated or part of broader movement?
- Can drainage and ground conditions be corrected without full removal?
- Are posts, footings, reinforcement, connections or units reusable?
- What sits above, below or beside the wall?
- Would staged repair create a future access or warranty problem?
When a repair case may be plausible
A repair may be worth investigating where the problem is localised, the remaining system is serviceable, the cause can be corrected and the work can be designed and warranted without disguising wider movement. That is a property-specific judgement, not a rule from this page.
When replacement enters the comparison
Replacement may deserve a full scope where movement is widespread, major components are deteriorated, drainage and founding need reconstruction, the system no longer fits the property objective or a partial repair would leave significant unmanaged risk.
Ask both options to state
- Cause
What condition the proposal is intended to address and what remains uncertain. - Extent
Which wall sections and components are included. - Drainage
How water management changes, not only how the face is restored. - Professional scope
Assessment, design, approvals and inspections included or excluded. - Residual risk
What remains in place, what is not warranted and what future work may be needed.
A photo-based enquiry can support triage and scoping, but it cannot establish structural safety or the required repair design.