Updated: May 17 2026 If you’ve ever heard scratching at night and told yourself it was probably just pipes or the house settling, you’re not alone. Many homeowners don’t realize they have a rat problem until weeks — or even months — after the infestation begins, because rats are extremely good at staying hidden. Start here: Our complete guide to stopping rodent damage (cars, garbage, and insurance) Rodent Damage Prevention Guide Quick Answer: Early Signs of a Rat Infestation The early signs of a rat infestation often appear before you ever see a rat. Watch for nighttime scratching, droppings near More…