A worker from Kilmore was injured after falling 2.4m at a housing development at Doreen on Thursday.
WorkSafe is conducting an investigation over the incident which happened around 8.10am at a Midland Rd. Site.
Initial investigation found that the man was on top of a house frame marking the location of roof trusses.
He was in a serious condition and was brought to the Alfred Hospital.
The Director of Worksafe’s construction division, Allan Beacom, said working at height was a major source of serious workplace injuries and fatalities, especially in the construction sector.
“WorkSafe is running projects targeting basic hazards in the domestic construction sector, which will look at ensuring people are using the right equipment and that they have the right training to do the job safely.
“As we say in our current safety campaign, the overwhelming majority of incidents can be prevented at little or no cost.
“It takes only a little time and thought to put safe practices in place, but an ongoing effort is needed to ensure they’re consistently maintained,” said Mr Beacom.
“This is a tragedy for the man, his family and workmates and should send a message to the entire community – employers and workers alike – that high safety standards must be in place, and applied, at all times.”
More information on preventing workplace injuries and workers compensation matters can be accessed through the WorkSafe Victoria website.