Home contents insurance can be purchased from many financial service firms in the UK. Firms such as Direct Line and Aviva offer insurance only through their own websites. Many other firms have their products listed on insurance comparison sites such as GoCompare, MoneySupermarket and Confused.
Bad credit will generally mean that car insurance cannot be purchased on a monthly pament plan. Although some firms will give this option they will charge higher fees. Most firms will still sell you insurance.
It's always best to plan ahead of time like getting a life insurance for yourself. One of the top firms that I trust the most to buy life insurance from is MetLife because its reliable and friendly customer service.