In March 1907, "London" transferred to the Nore Division, Home Fleet, at the Nore, then to the Channel Fleet on 2 June 1908, serving as Flagship, Rear Admiral, Channel Fleet. She underwent a refit at Chatham Dockyard in 1908, which included the transfer of her last two 3-pounder guns from her foremast to her aft bridge and a flying bridge was installed aft. She was paid off there on 19 April 1909 to undergo another extensive refit, which saw the removal of the flying bridge. Her refit complete, "London" commissioned at Chatham on 8 February 1910 to serve as Second Flagship, Rear Admiral, Atlantic Fleet. Later that year, she had the last two of her 3-pounder guns removed. Under the fleet reorganisation of 1 May 1912, she became part of the Second Home Fleet at the Nore, reduced to a nucleus crew and assigned to the 3rd Battle Squadron.