Think mice in the walls are just a little scratching noise? The sound is the smallest part of the problem. A wall void is warm, dark and protected: ideal rodent habitat. And everything a rodent does in there costs you something.
Wiring: the fire risk nobody sees
Rodent teeth grow continuously, so rodents gnaw constantly, and electrical wiring insulation is a favorite target. A chewed wire inside a wall void is a genuine fire hazard, and it's invisible until something arcs. This isn't scare-tactics copy; gnawed wiring is one of the most common things we document when walls get opened up.
Pipes, insulation and the nest itself
Plastic supply lines get chewed too, and a pinhole leak inside a wall does slow, expensive damage before it's discovered. Meanwhile the insulation around the nest is being shredded for bedding and contaminated with droppings and urine, which degrades its performance and leaves an odor that lingers for weeks, especially if a rodent dies in the void.
That noise is a warning
Scratching at night means an active, growing population. Mice don't move in alone, and they don't move out on their own. Waiting turns a trapping-and-exclusion job into a repair project. The right response is prompt: inspect, seal the entry points, remove the population, and verify the walls have gone quiet.
Hearing it right now? Book a free inspection. We'll find how they got in, what they've reached, and seal the problem at its source, guaranteed.