There are certain things that consumers sometimes don't realise when it comes to mortgages, which is you are free within the lifetime of a mortgage to change its terms and basic setup if needed. The only things you are tied into are the introductory interest rates (if you have any) and the commitment of making your monthly payments on time each month, everything else can be re tuned as you go, dependant on changes in circumstances or requirements. You might want to extend or shorten the term, you might want to pay off a lump sum or you might want to borrow more. You might just want another good rate of interest or scheme. Taking a re-mortgage is where all this can be reviewed and addressed.