Most homeowners assume they will see pests before they become a serious issue. In reality, many infestations develop quietly behind walls, under floors, in roof cavities, or around hidden areas of the property long before pests become visible. Whether it's rodents seeking shelter during winter, cockroaches hiding in kitchens, or ants establishing colonies around your home, early detection is the key to preventing costly infestations. Here are seven warning signs Melbourne property owners should never ignore. 1. Unusual Noises Inside Walls or Ceilings If you hear scratching, scurrying, or movement sounds—especially at night—it could indicate rodents nesting inside your property. Common locations include: Roof cavities Wall voids Under-floor spaces Garages Storage areas Rodents are often most active after dark, making nighttime noises one of the earliest indicators of an infestation. 2. Small Droppings Around the Property Pest droppings are one of the clearest ...