The most commonly found rat in the UK is the brown rat. They can measure up to 25 cms. The male rats tend to be larger than the females. Rats do not usually hibernate and can sometimes come into our homes during the cold winter months to find shelter and food. Rats can cause damage in our homes by chewing through pipes and cables, they also carry diseases and parasites that can be harmful to humans. If you have an emergency with rats, mice or any other pest our telephone lines are open 24 hours a day. We can deal with your problem immediately, contact 24 Hour Pest Control.