The Tower of London, has played a prominent role in English history. It was besieged several times, and controlling it has been important to controlling the country. The Tower has served variously as an armoury, a treasury, a menagerie, the home of the Royal Mint, a public record office, and the home of the Crown Jewels of England. . The castle was used as a prison from 1100 (Ranulf Flambard) until 1952 (Kray twins),[3] although that was not its primary purpose. A grand palace early in its history, it served as a royal residence. As a whole, the Tower is a complex of several buildings set within two concentric rings of defensive walls and a moat. The peak period of the castle's use as a prison was the 16th and 17th centuries, when many figures who had fallen into disgrace, such as Elizabeth I before she became queen, Sir Walter Raleigh, and Elizabeth Throckmorton were held within its walls. This use has led to the phrase "sent to the Tower"
Fourways was hired to erect full height scaffold for much of the main highly historic and Grade 1 listed building. It was to include temporary roof, hoists and access towers along with hoarding, Monarflex and heras fencing.