Contact Us | Customer Support | NatWest

If you need help with a NatWest mortgage application please call us using the number below: New Mortgage applications UK: 0800 092 9585. New Mortgage applications Overseas: +44 121 629 0739. New Mortgage applications Relay UK: 18001 0800 092 9585. Available Mon - Fri 8am-6pm, Sat - Sun 9am - 4pm. Opening times may vary on bank holidays.