That is what we do. I have been lucky before to fix and have a lower rate when they were rising, but the last five months of that two year fix we were paying more than the current rate, so I am not a fan of fixing, but to prepay, it is a necessity.
We fixed two loans last year, and fixed for two years, so those two are requiring to be prepaid in June.
We are looking a fixing a further loan, possibly only for one year to bring our expenses into this financial year.