Bleaching of non-vital teeth is the most conservative approach to have a suitable aesthetic result for endodontically treated teeth. Three techniques used for bleaching are: the walking bleach technique, the inside/outside bleach technique, and the in-office bleaching procedure. Because of its simplicity, safety, and less in office time required, walking bleach is the most used technique. This case report describes the management of a discoloured nonvital upper anterior teeth through a combination of walking bleach and in office bleaching. A 35-year-old female patient reported to the clinic with severe swelling and pain on the upper anterior teeth since one week and had a previous history of trauma in childhood. On examination, 11 and 21 were tender on percussion, severely discoloured and the radiograph showed periapical lesion in both. Root canal treatment was done followed by walking bleach and thermocatalytic bleaching in both teeth. Review showed good aesthetic results and IOPAR after 18 months showed good periapical healing. Root canal treatment followed by nonvital bleaching showed good results both aesthetically and periapicaly in this case for a severely discoloured tooth.