If you wait until walls are heavily stained, paint is peeling, and everything looks tired, repainting becomes a huge, expensive project. You need multiple days, lots of prep, maybe even moving out of rooms.
Scheduling a lighter “maintenance painting week” every few years – where painters do touch-ups, refresh high-traffic areas, and maybe repaint one or two rooms fully – keeps things under control. Damage never becomes extreme; you’re just topping up.
Costs spread out over time, and your home almost always looks reasonably fresh instead of swinging between “perfectly new” and “completely worn out.”