Repair may suit when
- Damage is genuinely localised
- Surrounding material remains sound
- Fall and brackets are serviceable
- The profile can be matched
- This is not another repeat failure
Replacement may suit when
- Corrosion is widespread
- Metal is thin or splitting
- Many joins or sections fail
- Runs sag or hold water
- Fascia and brackets need major work
- The profile is obsolete or mismatched
Request two options where appropriate
If both approaches are viable, ask for a written repair scope and a replacement scope. Compare likely lifespan, excluded defects, warranty and whether the same root cause is addressed.