UK Rodent Activity Up 10% Since 2024, Rentokil Reports

LONDON — Rodent activity appears to be increasing across the UK, with analysis of data recorded by Rentokil Pest Control revealing a 10% year-on-year increase in confirmed pest activity, and large regional spikes in Northern Ireland and Northern England.

According to Rentokil the full year data recorded in 2024 and 2025 highlights the UK’s regional rodent hotspots. Northern Ireland recorded the largest year-on-year increase with 26%, followed by Yorkshire with 20% and North West England with 19%. Several other regions, including the West Midlands with 16% and Scotland with 14%, also saw double-digit rises.

The company said longer-term climate patterns may be contributing to the upward trend. Both 2024 and 2025 were significantly above temperature averages, with 2025 being the UK’s sunniest and warmest on record. These conditions can increase rat reproduction, as milder weather extends their breeding season and can lead to larger populations.

Pairing this against the backdrop of a record-breaking wet start to 2026, Rentokil is warning that we could see higher levels of reported rat activity. Sustained heavy rain can flood burrow systems and drainage networks, displacing rats and increasing the likelihood of infestations as they seek higher, drier shelter.

“Rats are highly capable swimmers,” said Paul Blackhurst, head of technical academy at Rentokil Pest Control.  “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.”