42 Windmill St, Fitzrovia, London W1T 2JZ No 42 shop No 42 Found on Windmill Street in Fitzrovia, No 42 Hair Salon is a bespoke boutique offering expertly crafted haircuts and glamorous looking colours. 42 Windmill St, Fitzrovia, London W1T 2JZ Our opening hours : Mon-Wed 10-7pm, Thu-Fri 10-8pm Saturday 10-6pm