If you choose a variable rate mortgage deal, then the amount of interest you pay can fluctuate over time. Mortgage rates often rise when the Bank of England raises the base rate, as borrowing costs become steeper for lenders, and these higher costs are passed on to homeowners. That’s why many homebuyers opt for fixed rates to provide peace of mind that their interest payments won’t change.
To be clear, you don't need a pre-approval to start looking at houses. However, since a pre-approval is essentially the same as a full mortgage approval, just without a specific home in mind, it can be an extremely valuable shopping tool. Specifically, if you submit a pre-approval along with your offer, it tells the seller that you're a serious buyer who is not likely to run into trouble when obtaining financing. One caveat: A pre-approval and pre-qualification are two different things. A pre-qualification is based solely on information you provide and is not a commitment to lend money, therefore it doesn't carry nearly as much weight.