If you have an existing pension whether it is paid up or you are still contributing to it, it is your money. Because it belongs to you it can be transferred to another provider to get a better deal. There are many different providers and by shopping around you can often secure a better deal for yourself.
Transferring your pension to get a better deal can save you hundreds of pounds in annual charges. You can choose a fund with a better track record or with a wider spread of assets. This is known as Diversification.
Transferring your pension should only be done if it is in your best interest and it puts you in a better position.
You are advised to seek advice from a fully qualified financial adviser to ensure you do not make a costly mistake. (find a financial adviser)