A humidity indicator as much as a pest — where silverfish thrive there is usually damp behind the finish.
They need high humidity and darkness, so they gather in bathrooms, under sinks, behind wardrobes on an outside wall and in storerooms. They feed on starch — paper, glue, cotton, cardboard — and can live a long time between meals, which lets a small population persist unnoticed.
Silverfish don't bite or carry disease. What they cost you is documents, books, photographs, wallpaper and stored clothing — and their presence is a reliable warning that a damp problem needs finding before it damages the building itself.
Residual treatment of cracks, skirting and the voids behind fitted units, combined with bait where numbers are high. The lasting fix is drying the source — a leaking trap, a cold outside wall, an unventilated store — because a dry room will not hold a population.
Practical steps that make a repeat infestation far less likely after treatment.
Ventilate bathrooms and store rooms, and run extractors long enough to clear the steam
Fix leaking traps and condensation on cold external walls
Store paper, books and documents in sealed boxes off the floor
Pull wardrobes a little off external walls so air can move behind them
The things people ask us most before booking this treatment.
They don't bite or carry disease. What they cost you is paper — documents, books, photographs, wallpaper and stored clothing. The bigger issue is what their presence indicates, which is damp somewhere behind the finish.
They need high humidity and darkness, and a bathroom that isn't ventilated long enough after a shower gives them both. A leaking trap or condensation on a cold external wall does the same thing year-round.
Treatment clears the population, but a room that stays damp will hold a new one. The lasting fix is finding the moisture — a trap, a cold wall, an unventilated store — which is why we look for it as part of the inspection.
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