A mother is accused of leading her teen son and his friend on a weeks-long crime spree through Western Sydney.

The 42-year-old woman and two 18-year-old men were charged on Wednesday.

WATCH THE VIDEO ABOVE: Western Sydney crime spree.

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They allegedly used hammers to smash their way into almost 40 businesses including supermarkets, cafes, takeaways stores and barber shops between May 13 and June 4.

It will be alleged the mother “used” the young men “to assist in the break-ins,” NSW Police said.

They caused damage totalling up to $150,000, and stole goods, cash, and personal items, police allege.

A special taskforce was established to track down the alleged repeat offenders — and just over a week later, one of the teens was allegedly caught red-handed.

He was found allegedly smashing the glass window of a supermarket in Whitecross Rd at Winmalee just after 5am on Wednesday.

The 42-year-old woman was arrested in a car nearby.

The teen was charged with aggravated dwelling etc in company steal less than $60,000 and breach of bail.

The woman was charged with 38 counts of aggravated dwelling etc in company steal less than $60,000, seven counts of drive licence suspended, and one count of possess prohibited drug.

They were both denied bail to face Penrith Local Court on Thursday.

The second teen was arrested about 10am at a home on Sorenson Cres at Blackett.

He was charged with six counts of aggravated dwelling etc in company steal less than $60,000. He was granted conditional bail to face Penrith Local Court on July 16.

Investigations are ongoing.