A Western Sydney couple have been arrested after police found a massive drug setup.

Officers searched the house in L’Estrange Street, Werrington last night and found approximately 176 thousand dollars worth of weed spread across 4 rooms of the house.

The man and woman, both aged 22, were arrested and charged with cultivate prohibited plant-commercial quantity and use electricity without authority.

They were both refused bail to appear in Penrith Local Court today.