Tower of London

Client: Historic Royal Palaces
Contract Period:
Completion: January 2017
Tower of London

The Tower of London is a historic castle located on the north bank of the River Thames in central London. The Tower is a complex of several buildings set within two concentric rings of defensive walls and a moat. The White Tower, which gives the entire castle its name, was built by William the Conqueror in 1078 of Kentish Ragstone, as it is the only hard rock available at a shallow depth in the South East. The Tower is built with random split faced Kentish Ragstone walling along with other types of stone dressings.

As the only remaining company still quarrying Kentish Ragstone, Gallagher Aggregates has been supplying dressed Kentish Ragstone for the restoration and conservation works to the Tower for several years. With its modern production facility and specialist machines, Gallagher’s masonry department is able to produce stones which blend in with the original stonework.