Diana Gould was surprised to open her door to the firefighters, who said they had been inspired by her “positive attitude to life”, after visiting her flat in Draycott Avenue last month when they carried out a routine fire safety visit.
Crew manager Stavros Marangos said: "She is a remarkable lady, very independent, extremely youthful in her looks and she stole our hearts with her amazing attitude and her banter.
"Her positive, fun, happy outlook on life really touched us and we wanted to go out of our way to do something a little bit extra for her, so on her birthday a crew from Stanmore Green Watch took a fire engine to her home to surprise her with a card, a bunch of flowers and a box of chocolates.
"She was delighted to see us and she captivated me and my colleagues all over again."
Diana, who was born on May 23 1912, has lived through both world wars, playing badminton to keep fit well into her 80s.
She was also a London 2012 Olympics Torch bearer.
Her late husband served in the Auxiliary Fire Service during the Second World War and was stationed at Stoke Newington.