Yes, and it's one of the more serious reasons to take squirrel activity seriously rather than waiting to see if it resolves itself. Wiring and insulation damage isn't a rare side effect — it's one of the most common consequences of squirrels occupying a loft space, including in Wokingham properties of every age.
Why Squirrels Gnaw on Wiring
A squirrel's incisor teeth grow continuously throughout its life, and gnawing on hard materials wears them down and keeps them at a manageable length. Electrical cables running across loft joists sit at exactly the height and position squirrels move through, making them a convenient — if entirely accidental — target alongside roof timbers.
The Fire Risk From Chewed Cables
Exposed or frayed wiring can spark, and this is a particular concern where cables run close to flammable loft insulation or timber. This risk is one of the clearest reasons to act quickly once squirrels are suspected in a loft, rather than assuming the noise is a minor nuisance that can wait.
Impact on Loft Insulation
- Insulation gets flattened and compacted by repeated movement, reducing its thermal performance
- Material is often shredded and hoarded to build nesting dreys
- Contamination from droppings and urine can mean sections need replacing rather than simply re-fluffing
- Reduced insulation performance can contribute to higher heating costs over time
Signs Wiring May Already Be Affected
Flickering lights, circuits tripping without an obvious cause, or visible bite marks on cable insulation during a loft visit are all worth noting. Where wiring damage is suspected, it's sensible to involve a qualified electrician alongside pest removal, since the electrical issue needs addressing independently of clearing the squirrels themselves.
If you suspect squirrels have been in your Wokingham loft for any length of time, don't wait to find out how much damage has been done. Pest Services Berkshire can inspect the roof space and advise on next steps — call 0118 336 1366.
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