What are the costs of remortgaging?

There are several fees associated with switching.

These can include but not limited to:

Early repayment fees - you have to pay if you pay back earlier than expected!
Exit fees - to leave a mortgage can cost money, usually between £75 and £300 depending on your lender
Broker fees - personalised advice on mortgages isn't free
Valuation costs - switching lenders might mean a new valuation, and new valuation costs
Completion fees - also known as arrangement fees, this is the lender's charge for setting up your mortgage