Squirrels – Identification and Control

 

Overview

In the UK, the grey squirrel is the most commonly encountered species and is considered a pest when it enters homes, attics, or damages property. Though visually appealing, grey squirrels are highly destructive, gnawing through timber, cables, insulation, and even pipes. Red squirrels, in contrast, are a native and protected species.

Grey squirrels can cause problems in both urban and rural settings. Once inside buildings, they can create noise disturbances, pose fire risks, and damage structures. They are also known to raid bird feeders and strip bark from trees.

Effective squirrel management requires both control and prevention measures, especially when activity is inside the home.

 

How to Identify Squirrel Activity

Signs to Look For:

• Scratching or gnawing sounds from the loft or walls during the day
• Droppings (similar to rat droppings but more rounded)
• Torn loft insulation, chewed wood, or cable damage
• Squirrels seen entering roof gaps or running across power lines or fences

 

Grey Squirrel Behaviour

• Diurnal (active during the day), unlike most rodent pests
• Excellent climbers and jumpers, often accessing lofts via trees or rooftops
• Nest in roof spaces, chimneys, and wall cavities
• Reproduce twice per year, often causing recurring infestations
• Known to defend territories and return to previous nesting sites

 

Risks and Impact

• Fire risk due to gnawed electrical wires
• Structural damage to loft timbers, insulation, and stored items
• Noise disturbance, especially early in the morning
• Aggressive behaviour if cornered
• Ecological impact—grey squirrels outcompete and threaten native red squirrels

 

Control and Prevention

• Trim back tree branches or climbers providing roof access
• Seal roof entry points with wire mesh or metal flashing (after confirming no animals are inside)
• Remove food sources, such as unsecured bins or bird feeders
• Use traps were legal and humane, following DEFRA guidelines
• Consult professionals for safe and lawful removal in lofts or complex locations

1. Can squirrels live in my attic?

Yes. Grey squirrels frequently nest in roof spaces, especially during breeding seasons.

2. Are they dangerous?

While not aggressive unless threatened, they pose serious fire and property damage risks through gnawing.

3. Can I remove squirrels myself?

DIY traps may be used, but UK law restricts the release of captured grey squirrels—you must humanely dispatch them or consult a professional.

4. Are red squirrels pests too?

No. Red squirrels are protected and rarely cause property problems. They must not be harmed or disturbed.

• Squirrel activity is damaging your home or garden
• You hear regular noises in your loft
• DIY attempts have failed or you are unsure of the species involved
• You require advice on proofing or prevention