The latest offer will give eligible customers an extra bank balance boost, as well as a dedicated mortgage adviser to help make the process hassle-free.
The £750 will be made automatically on completion, sent to the conveyancer with the completion funds.
Halifax will also pay standard valuation cost and basic legal fees, helping customers save an average of £300.
Craig McKinlay, Mortgages Director, Halifax, said: “People can often be put off remortgaging by thinking it’s a daunting process and they don’t have time to take that step. We are always working to find ways to help give customers extra and this new offer means homeowners can not only benefit from a dedicated mortgage adviser to guide them through the process, but also enjoy an extra £750 in the bank which could help make the summer a bit brighter.”