Balch Mortgages is a trading name of Brook Financial Services Limited which is an appointed representative of Mortgage Advice Bureau Limited and Mortgage Advice Bureau (Derby) Limited which are authorised and regulated by the Financial Conduct Authority. Brook Financial Services Limited. Registered Office: The Old Courthouse, 60a London Road, Grantham, Lincolnshire, NG31 6HR. Registered in England Number: 07311674.