Why The O2 arena is letting Unilever clean its roof

AEG, which works on The O2 arena’s sponsorship deals, saw an opportunity to work with the cleaning brand after realising the venue’s roof hadn’t been cleaned since 2007.
CIF has sent seven professionals to completely clean the roof over a 12-week period, of which it is currently just over half-way through, with signage in The O2 arena promoting the campaign with the slogan: “While you raise the roof, we are cleaning it”.
The campaign, which has been regularly update