Nail pops are bumps or crescent shaped cracks in walls or ceilings. During the drying out process nails can sometimes work themselves loose, literally ‘popping out’ from the surface. This is quite normal so there’s no need to worry. We will happily deal with any nail pops that exceed the standards laid down by the NHBC guidelines (which can be found on the NHBC website). Speak to your Site Manager or contact your local Customer Care team using the form in this section.