If you host a holiday let near Box Hill, you already know the rhythm: one guest checks out, another arrives soon after, and the place has to look calm, fresh, and properly cared for in between.

If you live near Guildford High Street, you already know the rhythm of the place: busy pavements, a steady flow of visitors, older buildings sitting alongside newer flats, and that constant battle against dust, footprints, kitchen grease, and the odd bit of damp brought in on a rainy Surrey afternoon.