Remortgage
When you remortgage, you are switching your mortgage to another deal, and frequently, another lender.
Remortgages can be used for various reasons. Most people simply switch mortgages because it will work out cheaper for them. For example, the introductory discounted interest rate may have finished with your current lender; therefore you could potentially get a new discount rate, or a lower APR, with another lender. Another example is when you may need to re-mortgage to consolidate debts.