Thanks to a record hot summer and recent wet weather, it’s thought that homeowners are seeing more rats near their homes.
Rentokil Pest Control said it had recorded a 10% year-on-year increase in confirmed rodent activity, with large regional spikes in Northern Ireland and northern England.
Northern Ireland recorded the largest increase of 26%, followed by Yorkshire (20%) and north-west England (19%).
Native wild animals in the UK
Rodent activity increases across the UK
Several other regions, including the West Midlands (16%) and Scotland (14%), also had double-digit rises.
The UK could see a growth in rat populations due to longer-term climate patterns.
Pest control company Rentokil said this could be due to 2025 being the UK’s warmest year on record alongside the record-breaking wet start to 2026.
Milder weather could extend rats’ breeding season, causing their populations to grow, the company stated.
Furthermore, sustained heavy rainfall can flood rats’ burrow systems and drainage networks.
This forces them to relocate to higher, drier locations, increasing the likelihood of infestations, Rentokil warned.
Paul Blackhurst, from Rentokil, said: “Rats are highly capable swimmers. They can navigate strong currents, enter exposed pipes and sewers, and swim considerable distances in open water.
“However, what they cannot tolerate is prolonged submersion. When burrow systems and sewer networks flood, rats are forced to seek higher, drier ground, increasing the risk of infestations in properties.
“With northern regions already reporting notable increases in reported activity, continued wet weather may push more rats into properties. Early prevention and professional support are key.
“Simple steps such as proofing entry points, managing waste effectively and responding quickly to early signs of activity can make a significant difference. If a problem does become unmanageable, professional pest control experts are always on hand to provide safe and effective solutions.”
How to prevent rodent activity after heavy rain
After periods of heavy rain, storms and flooding, property owners are advised to take proactive steps to reduce the risk of rodent activity, including:
- Clear debris promptly by removing fallen branches, leaves and other items that may have accumulated around the property, as these create ideal hiding and nesting spots for rats
- Seal potential entry points
- Inspect the walls and foundations of the property for gaps, as rats can squeeze through “surprisingly small” openings
- Remove sources of food by ensuring outdoor bins are sturdy, fitted with tight lids and positioned away from building walls where possible
How to get rid of these common garden pests
When are rats and mice active?
Rodents are active at night, but living near humans can make them “more likely to come out during the day too”, according to the RSPCA.
The rodents will eat most things so make sure to put food sources away and don’t just put them at a height as rats are “great climbers”.
The animal charity encourages homeowners to use humane methods to prevent rat infestations.
Have you seen any rats this winter? Let us know in the comments.