An intruder has come crashing through the ceiling of a Ballajura house, landing just metres from traumatised children.

The stranger then barricaded himself inside their home, leaving the shocked family terrified.

Jeff Abaz said he could not believe how the intruder got inside his home.

The stranger scaled the roof, ripped off the tiles and crashed through the ceiling — leaving blood stains smeared on the walls of the family home.

Mr Abaz’s grandchildren, aged 6 and 3, were watching TV just metres away.

His brother in law Nesat Pesoski, who lives on the same street, said the kids were “crying and screaming”.

Mr Pesoski noticed the man acting suspiciously around 7.30pm.

He then followed him as the intruder climbed onto the roof of the home.

“I said stay up there and don’t come down because the police are on their way, but he’s moved tiles, broke tiles on the roof then he went straight in,” he said.

When the intruder fell through the ceiling he briefly came face to face with the shocked home owner before running to a nearby bedroom and barricading himself in.

When police arrived they had to kick down the door to arrest the man.

Police have not yet laid charges over the incident.