Customers, who already hold other products with Nationwide, including mortgages, savings accounts, current accounts, credit cards, personal loans, investments or other insurance products, who take out a new Nationwide Buildings and Contents policy by 3 January 2011, will receive 30% discount.
Even new customers, taking out buildings and contents cover together will receive a 15% discount.
Nationwide's head of general insurance, John Baker, said: "As always, we strive to give our customers the best possible cover, at the best possible rate - so we are delighted we can reward customer loyalty with a really significant and tangible saving on price."
