Cockroaches multiply quickly, so it's essential to get professional help to control an infestation. Special products and solutions from experts are needed to completely get rid of them at every stage of their life cycle. The two main varieties are the German cockroach and the Oriental cockroach. The German cockroach is light brown in colour with two dark stripes behind its head. The Oriental cockroach is quite long and is dark brown/ black in colour. Cockroaches are known carriers of diseases such as Salmonella. They will usually only be seen at night when they come out to feed and will stay hidden in cracks and crevices during the day. Visible sights in the day would suggest you have a major problem . Cockroaches will eat anything  from crumbs/oil debris to fabrics and paper. Cockroaches are very tough resilient insects and are also able to breed rapidly. Once an infestation is established, cockroaches can spread quickly to other rooms and neighbouring properties.