His grandfather was Septimus Burt, who was also a member of parliament and served as Attorney-General of Western Australia.
Burt attended Guildford Grammar School, and after leaving school went to the North-West, working variously as a crayfisherman, stationhand, pearler, and tin miner.
He opened a machinery and hardware store in Cue in 1935, and in 1939 was elected to the Cue Road Board, of which he eventually became chairman.
Burt entered parliament at the 1959 state election, narrowly winning the seat of Murchison from Everard O'Brien of the Labor Party.
He transferred to the new seat of Murchison-Eyre at the 1968 election, and retired from parliament at the 1971 election.
After leaving politics, Burt held directorships with various mining companies.
He died in Perth in November 1993, aged 84, and had married Mary Groom in 1937, with whom he had three sons.