The latest fee-free deal will be exclusively available through all key accounts and on offer to homebuyers and remortgagers.
The maximum loan size is £1m and will be available until the close of business on Thursday 21 March.
Abbey managing director Miguel Sard says: “We are delighted to launch our latest market leading seven day special, designed to meet the needs of borrowers looking for a longer-term fix rate with a fantastic rate and no fee. With the added benefit of the Homebuyer or Remortgage Solution, we expect this product to be very popular with intermediaries and their clients over the next seven days.
“The demand for our seven day specials has been extremely strong and we are pleased to continue to support the intermediary market with these key account exclusives.”