When found indoors, what do woodlice congregating near leaking pipes signal?

Answer

An environmental issue indicating excess moisture exists

The presence of woodlice inside a structure, particularly near areas like leaking pipes, damp concrete floors, or condensation accumulation under sinks, is a strong diagnostic indicator of an underlying environmental problem. Woodlice do not thrive or breed effectively in the dry conditions typical of heated indoor living spaces. Therefore, their clustering in specific indoor zones signals the existence of a localized, persistent damp, dark area—a microclimate that mimics their preferred outdoor refuge—often pointing toward foundation seepage, plumbing leaks, or inadequate moisture control in basements or crawl spaces.

When found indoors, what do woodlice congregating near leaking pipes signal?
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