Remortgaging sounds simple on paper. Find a better rate, switch over, save money. In practice, a lot of homeowners trip up on the details.

The first mistake is waiting too long. People often start looking only after their fixed rate has already lapsed onto the lender's standard variable rate, which is almost always more expensive. By then they've paid weeks or months of higher interest for no reason.

The second is ignoring early repayment charges. Some deals carry hefty exit fees, and homeowners occasionally switch without checking if the new deal's savings actually cover that cost.

Third, people underestimate how much their circumstances affect eligibility. A change in employment status, a new dependent, or a dip in credit score can all shift what lenders are willing to offer, and it's better to know that before you apply, not after a rejection.

Fourth is only checking one or two lenders. Comparison sites don't show every deal, and broker-only rates are often missed entirely.

Fifth, and probably the most common, is not accounting for fees. A low headline rate with a high arrangement fee can end up costing more than a slightly higher rate with no fee attached.

Avoiding these comes down to starting early and working with a leading remortgage broker UK homeowners can actually trust.