London Fire Commissioner, Andy Roe, said the report showed a “clear assessment of the positive changes” the brigade had made in the last two years.
He told Radio London that “cultural improvement” had been at the centre of the recent changes.
“I don’t think in an organisation of thousands of people I’ll ever be able to eradicate poor behaviour or some of the very disappointing reports of individual lack of professionalism,” he said.
“But what I can do is be transparent about it, put in place very clear standards and then hold people to it with absolute rigour. I think we’ve done that at scale.”
He told presenter Riz Lateef that there had been more disciplinary and misconduct action against staff in the service than in the history of the organisation.
He said: “None of this would have been possible without the dedication of everyone in the organisation and the unwavering support of the mayor of London.
“This is not the end of our journey, and every day we will strive to do better to ensure we remain trusted to serve and protect London.”
The Mayor of London, Sadiq Khan, said the report was “good news for London”.