Identification · 10 June 2026
Sub-floor pest problems in older Melbourne homes
Older homes with timber sub-floors can hold moisture, silverfish, rodents, ants, spiders and termite risk if ventilation is poor.
Victorian terraces, weatherboard cottages and older brick homes often have sub-floors that stay damp, dark and hard to inspect. That environment suits silverfish, ants, rodents and spiders, and it can also increase termite concern in timber elements.
Signs include musty smells, springy boards, silverfish inside, droppings near vents, spider activity at air bricks and ant trails coming through floor gaps.
Treatment should include access assessment, moisture notes, proofing advice and targeted product placement. Blanket indoor spraying misses the part of the house where the pressure starts.
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