A man has died after falling from a roof while trying to install a television antenna in Melbourne's north.

Worksafe spokesman Michael Birt says the man in his 40s was trying to fit the antenna at a house in Carrick Drive at Gladstone Park.

Mr Birt says people need to protect themselves from falls.

"Worksafe's investigating this incident and we'll need to find out exactly what's happened and what the circumstances were," he said.

"But what we need the community to do is if they're working at height, whether they're on a building site or doing some work around somebody's house, they need to have fall protection."