Rat Complaints at Danish Homes Soar to Nearly 200,000

Denmark is facing a significant increase in rat activity, with complaints at residential properties surging by 40% in 2025 compared to 2023. Last year, the Danish Environmental Protection Agency recorded a total of 197,639 complaints related to rats in and around homes, a stark rise from previous years.

This escalating problem is not just a nuisance but poses a serious threat to property and infrastructure. Jan Graversgaard, vice president for Building and Housing at Alm. Brand insurance company, emphasized the potential for rats to cause "serious and costly problems." He warned that these rodents can damage essential installations such as sewers, wiring, and insulation, making swift intervention crucial upon detecting any signs of infestation.

Alm. Brand has already paid out a "low three-digit million amount" for rat-related damages between 2020 and 2024, highlighting the financial burden associated with the issue. The law mandates that citizens report rat sightings to their local municipality immediately, as the municipality provides free pest control services. These services typically involve an assessment by a professional, followed by the strategic placement of traps or poison.

In response to the growing number of complaints, the Environmental Protection Agency decided in 2024 to increase the number of training courses for pest control technicians. Many municipalities collaborate with private pest control firms that employ authorized exterminators to combat the rodent population.

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They can destroy sewers, wiring, insulation, and other installations. Therefore, it is crucial to react quickly as soon as you discover signs of rats.