Scratching at night, droppings and gnawed insulation or cables are signs to investigate.
Look for gaps at the eaves, damaged roof tiles and openings around soffits.
Check pipe and cable entries. Climbing plants and overhanging branches can offer routes towards the roof.
Contact a pest controller or check your local council for help with trapping and removal.
Ask an electrician to inspect damaged wiring. Include insulation damage in the pest controller's inspection.
Plan sealing with your pest controller after removal. Repair gaps around eaves, soffits, roof tiles and service entries.
Never sweep or vacuum droppings. For a loft full of droppings, arrange professional cleanup.