Moving out of a flat is rarely simple. There are boxes everywhere, dates to juggle, keys to hand back, and that odd little feeling that you have somehow lived in more dust than you realised.

If you live near Queensbury Station, you already know how quickly a sofa can pick up daily life: tea rings after a late-night cuppa, crumbs from a quick supper, pet hair, dust, and the odd mystery mark that appears out of nowhere.

If you need a carpet cleaned quickly, you are usually not planning weeks ahead. Spilled wine before guests arrive, pet accidents on a busy Tuesday, muddy footprints after a damp London morning - it happens.