Santander has cut mortgage rates by 0.35 percentage points, and increased its loan-to-value (LTV) by 10 percentage points.
In total, more than 30 products have been slashed or introduced across the market, including increased help for first-time-buyers.
New deals include a 2.99 per cent, two year fixed or tracker mortgage, with a 70 per cent LTV. There is also a 5.69 per cent deal, aimed at first-time-buyers, which is available with a 90 per cent LTV.
Other moves that the bank have made include increasing its 60 per cent LTV band to 70 per cent for the majority of direct products.
Santander Mortgages director Phil Cliff said: “This is good news all round for mortgage borrowers, whether they are looking to move home or remortgage.
“By reducing rates and increasing LTVs, we are doing our bit to help customers in tough market conditions. These new products are some of the lowest rates available from one of the major lenders in the UK.”