The contractor is leading the redevelopment of the ageing theatre, which first opened in 1878.
The six statues represent the four Greek muses – Melpomene (tragedy), Thalia (comedy), Euterpe (song and poetry) and Terpsichore (dance) – as well as William Shakespeare and Robert Burns.
Residing in the theatre’s foyer since 1989, the sculptures have now been returned to the building’s rooftop after restoration.