A Greenfields butcher has been targeted by thieves for the second time in just three weeks.
The offenders, who were wearing gloves and black hoodies, used a rock to smash the front windows of Lenny's Family Butchers on Sunday night before ransacking the Murdoch Drive store.
Manager Matt Marshall said the same incident happened just three weeks ago.
"We lost about $10,000 of contaminated stock and orders," he said.
"At the moment, especially in this little centre, there's constantly glass smashed everywhere and constantly people cleaning it up.
"Lenny works pretty much all weekend and he worked for nothing this weekend because we've just had to fork out another grand to get the glass and doors fixed."
Mr Marshall said they are looking at getting roller shutters installed for extra security.
"It's a huge expense for the shop which is once again sending us backwards," he said.
Mandurah Police are investigating.
Motorcycle passenger in critical condition after rider allegedly runs red light in East Rockingham
Two men charged over Australind murder
Last call for donations to support Mandurah's homeless
State Government commits to building $5 million electrical training facility at Rockingham TAFE
McDonald's approved for Dawesville
Wanted man known to frequent Kwinana, Mandurah and Rockingham areas
Mandurah woman completes grueling English Channel swim
Man and child seriously injured in South West crash
Motorists warned to expect delays during Kwinana Freeway upgrades