Squirrels

Additional Information

Grey Squirrels in the UK: A Widespread Pest

The grey squirrel (Sciurus carolinensis) was deliberately introduced to the UK in the 19th century, originally from North America. Since then, it has spread throughout most of mainland England and Wales, thriving in a variety of environments. Although primarily found in broadleaved and mixed woodlands, grey squirrels have successfully adapted to urban and suburban settings. They are a common sight in parks, gardens, and even residential areas, where they can sometimes become a nuisance.

Why Are Grey Squirrels a Problem?

While many people enjoy watching grey squirrels in their gardens, they can cause significant damage when they invade homes and buildings. One of the most common issues is their tendency to enter roof spaces in search of shelter, particularly in the colder months. Once inside, squirrels can be highly destructive:

• Chewing on woodwork – Grey squirrels have strong, sharp teeth that continuously grow. To keep their teeth in check, they gnaw on various materials, including wooden beams and rafters in loft spaces. Over time, this can lead to structural damage.
• Stripping insulation from electrical wiring and pipes – This poses a serious fire hazard. Exposed electrical wiring increases the risk of short circuits and fires, while damaged water pipes can lead to leaks and costly repairs.
• Tearing up fibreglass insulation – Squirrels often use insulation materials for nesting, which can reduce the energy efficiency of a home and lead to higher heating costs.
• Drowning in water tanks – Occasionally, squirrels become trapped inside water tanks, leading to contamination and potential health risks.

The Impact on Native Wildlife

Beyond their impact on buildings, grey squirrels have also had a detrimental effect on native wildlife, particularly the native red squirrel (Sciurus vulgaris). Grey squirrels outcompete red squirrels for food and habitat, and they also carry squirrelpox, a virus that is deadly to red squirrels but harmless to greys. As a result, red squirrel populations have declined significantly in areas where greys have become dominant.

Preventing and Managing Grey Squirrel Infestations

If you suspect a grey squirrel infestation in your home, it is crucial to act quickly. Professional pest control services can help remove squirrels safely and advise on prevention methods, such as sealing entry points and trimming tree branches near buildings.

Remedy: