KCS is a third-generation family business run by Sean Carrison that can trace its origins back 75 years Sean’s grandfather, Frank Carrison, started his window-cleaning business after the Second World War, and his son Martin took over in the 1970s. Sean worked for him after leaving school in 1990, predominantly as a window cleaner – and then, in 1998, he set up KCS, aiming to expand its services...
