A man has been charged with stabbing his neighbour at a home in Sydney’s north-west.

Police say the two men were having an argument at about 5pm on Sunday on the landing of a South Windsor unit.

A 31-year-old allegedly forced his way inside and stabbed the 75-year-old man in the stomach.

Police say the victim called Triple Zero to raise the alarm.

The younger man has been charged with special aggravated break enter dwelling with intent and refused bail to face court today.