UK mortgage rates have increased to their highest level in a month, driven by renewed tensions in the Middle East and rising funding costs for lenders.The conflict has reduced the likelihood of interest rate cuts by central banks, prompting major banks to raise their fixed-rate deals.The Bank of England projects that over five million homeowners could face higher monthly repayments by the end of 2028.While current rates remain below the peak seen during the Iran conflict in April, experts warn of continued uncertainty.Mortgage customers with fixed-rate deals may see their payments rise as existing deals expire, with the average two-year fixed rate at 5.58% and five-year rates at 5.6%.Financial advisors recommend borrowers to lock in deals now or seek broker assistance to explore better options.The market now shows a shift towards rising fixed rates, reversing earlier trends of decline.This development highlights the impact of geopolitical tensions on the UK housing market and financial planning.