If you own a house or summer house, or have a basement belonging to your apartment, there are several steps you can take before and after heavy rain to minimise the chance of damage and losses, as set out by insurance company LB Forsikring. So it’s a good idea to prepare for the massive rain we’ve been warned of,” the company’s head of Innovation and Prevention Sune Bille Larsen said in a press release ahead of a heavy rain warning back in 2024. If sewage water has entered your house, do not attempt to deal with the problem yourself but instead contact a company which specialises in damage limitation ( skadeservicefirma in Danish), because the sewage can pose health risks.