Gizmo's 100% right, the product fees for Fixed rate mortgage are usually around £1000.00 depending on the interest rate, you are paying for the benefit of keeping that rate no matter what interest rates do. Regarding the 5 year part of the product again Gizmo is right you need to check your KFI (key facts illustration btw) as it will clearly give you the end date of the product usually under the section talking about Early repayment charges.

Between 6 -7 years depending on the information.