Includes thorough cleaning of the premises, the procedure is less frequent. In fact, when you think you need it. However, it is highly recommended to do once every few months - for example, three months. The price is also relative - it depends on the size of the premises. The focus of specialists will be directed to the most polluted premises - kitchens and bathrooms. They are the most used and need the most care. The price varies between £ 130 - £ 265 on average