July 11, 2017 Oliver Lycett security, kent security, construction, building site, guard, guards, guarding, 24hr, 24 hour, static Why building sites NEED Security? July 11, 2017 Oliver Lycett security, kent security, construction, building site, guard, guards, guarding, 24hr, 24 hour, static No matter the location, building sites can be vulnerable despite the physical security present. Although sometimes looking like nothing more than a demolition site, there are still plenty of opportunities for vandals, thieves or trespassers.