In 1807, he hired Charles Labbé to manufacture articles made from fur that Bruneau then sold. He was elected to the Legislative Assembly of Lower Canada for the Lower Town of Quebec in 1810; he was reelected in 1814. In 1816, he was defeated in that riding but elected in Kent and reelected there in 1820.
Bruneau formed a partnership with Charles Labbé to produce goods from fur in 1807, which Bruneau then sold. He was elected to the Legislative Assembly of Lower Canada's Quebec seat in 1810 and won re-election in 1814. Although he lost his position in 1816, he regained it in Kent two years later.