Balcony edges and soffits are common places for concrete deterioration to become visible because they are exposed and can be affected by moisture, cracking and reinforcement corrosion.
Where to look
Check slab edges, underside soffits, corners, around balustrade fixings and areas showing rust staining or recurring cracks.
Why water matters
Persistent water ingress can accelerate deterioration and may need to be addressed alongside the concrete repair.
Safety considerations
Loose concrete at height can present a falling debris risk. Keep people clear of unstable areas and arrange prompt assessment.
What to do next
Take clear photos of the wider area and close up damage, note the property location and where the concrete is situated, then arrange an on site assessment so the repair scope can be priced accurately.
This guide is general information only and is not structural engineering advice. Where structural safety is in question, seek appropriately qualified professional advice.