The Grade II Listed head office is situated on the corner of Giltspur Street and Cock Lane in Smithfields – The City of London. Whitbread’s Premier Inn recently acquired a section of the City & Guilds Group’s Head Office, to construct a new hotel. With heavy plant machinery adjacent to offices, the noise pollution was becoming increasingly disruptive. The primary double glazing did little to stop noise ingress, so secondary glazing was installed on one side of the building to help combat the nuisance. After an in-depth technical discussion on the best treatment for all the openings, a total of 51 units were installed, a wide range of products were combined for the specification, including; Series 42 fixed lights, Series 45 and 41 casements, Series 10 and 15 horizontal sliding units. All units were a matt grey finish which complemented the existing windows and the frames were glazed with 6.8mm laminate ‘A’ rated safety glass. Employees at the City & Guilds Group have been very impressed with the level of sound attenuation received and it has made the working environment across all the office floors far more peaceful.