Cleaning flats above shops sounds straightforward until you meet the reality: narrow staircases, locked side gates, shared entrances, awkward delivery times, missing buzzers, and a shop manager who is only on site for about twenty minutes before lunch.

If you have ever compared cleaning prices and felt slightly wary of the fine print, you are not alone.

If you have ever compared cleaning quotes and thought, "That looks fair enough," only to spot extra charges later, you are not alone.