Near my hostel, Moorgate station, there was no laundrette, so I googled it and found this place. Nice owner and his family. I went there around 2pm, and there were owner and his family, so they let me know how to use it. If you do by yourself, it costs about £7-8 (my laundry was small), but if you want them to clean yours, it costs £10-15. FYI, £5.5 for washing, 30mins, and £1 for drying, 10mins, and £1 for detergent. Friendly. After a weeks laundry of underwear and clothes, I had to move to another country. There werent many clothes such as underwear and short sleeves, and it was enough to be filled with a plastic bag of cigarettes at Incheon Airport. If you leave it to them, you tell them when youll come to pick it up and charge 10-15 pounds depending on the amount of laundry. The price is roughly on the wall. In general, when you go 2-5 oclock, there is an owner and a family of owners, so it is good to change coins.