The man was in the kitchen at 11.40pm, when he heard a loud noise at the front door.
Capt Johannes Ramphora, Springs police spokesman, says the man went to investigate and found three suspects standing in the dining room, one of them holding a pick head.
Read: Robbers lock boy (8) and domestic worker in bedroom
The suspects allegedly asked the man for his safe and pushed him into his bedroom, where his wife (age unknown) was sleeping at the time.
“When the suspects opened the safe they only found documents in the safe,” says Ramphora.
The suspects locked the man in the bathroom.
A TV set, tablet and two cellphones were taken from the house and loaded into the man’s blue Chev Spark.
Read: Robber scares teenager with a knife
Ramphora says the suspects fled in the stolen vehicle.
Police are investigating a house robbery case.