As the days begin to shorten and temperatures gradually drop in late summer, rodents like rats and mice start seeking warm, secure shelter. In Ireland, homes and businesses offer ideal nesting spots. Understanding this seasonal pattern can help you act early, preventing infestations that can lead to serious health risks and property damage.
Why Rodents Become More Active in Late Summer
During late August and into September, rodent behaviour shifts. They begin foraging for shelter, food, and nesting materials to prepare for the colder months. Urban areas are especially attractive due to easily accessible food waste, warmth from buildings, and numerous hiding places.
Rodents are nocturnal and highly adaptable, making them difficult to detect early. By the time you notice droppings or gnawed wires, they may have already established a nest.

Signs and Prevention of Rodent Infestation
Early Warning Signs and How to Keep Rodents Out
Look out for these early indicators of rodent activity:
- Droppings in cupboards or along skirting boards
- Scratching or rustling sounds in walls or ceilings
- Chewed packaging, wires, or furniture
- Grease marks along walls
To prevent infestation:
- Seal entry points around doors, windows, pipes, and vents
- Keep food in sealed containers
- Clear clutter and maintain a clean environment
- Store firewood and garden materials away from the home
Professional Help
If you suspect rodent activity, early intervention is key. DIY traps may control a small problem temporarily but rarely eliminate the source. Discreet Pest Control uses proven methods for rodent detection, treatment, and prevention to ensure long-term protection.
Conclusion
Rodents begin to move indoors well before winter arrives. Taking preventive action in late summer can save you time, money, and stress later. Contact Discreet Pest Control today to schedule an inspection or treatment plan.