Often, yes — a glass balustrade can replace an existing balcony railing. Whether it's straightforward depends on what the new balustrade needs to fix into, not on the age or style of the old railing. That's why an existing balcony gets assessed on site before any retrofit is quoted, rather than priced sight unseen.
What Gets Checked Before a Retrofit
A glass balustrade needs a solid, code-compliant anchor point, so the existing slab edge or structure is checked before anything is removed. This confirms the balcony can actually take the new fixings, rather than assuming it will because the old railing managed fine.
If the existing structure can't take the required fixing loads, additional structural reinforcement may be needed before the glass balustrade can go in. This isn't assumed either way — it's confirmed during a free site visit, along with the exact measurements the new glass will be cut to.
Base-shoe or standoff-fixed systems, where the glass is held by a channel or bracket at the base rather than a top rail, are commonly used for retrofits. They don't require altering the balcony's existing top edge or handrail height, which keeps the job simpler where the structure allows it.
How the Old Railing Comes Out
The old railing is typically removed only once the new glass balustrade and its fixings are ready to install. That sequencing means the balcony isn't left without a barrier for longer than necessary during the swap.
Diamond Step measures and assesses the existing balcony on site before quoting a retrofit, the same as any other made-to-measure glass and aluminium installation. Nothing about the fixing plan or sizing is finalised until that site visit has taken place.
