A resident has had a lucky escape after an unattended truck ploughed into her home in Melbourne's south-east this morning.

The vehicle crashed through a wall and into the bedroom of a property on Russell Street in Mount Evelyn about 11.15am.

Resident Linda Cooke was folding washing in her room only 15 seconds before the truck crashed through her wall.

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9News understands the truck driver was at a property across the road unloading skip bins when his truck started rolling back.

Cooke's son, Cameron, said he was in "disbelief".

"I just got a phone call from Mum. She was distressed, she couldn't make heads or tails of it," he told 9News.

"She said a truck came in through her bedroom. It's pretty scary."

The local council building surveyor has been called to the scene to assess the site, while investigations into the incident continue.