Heather Bambrick was born in St. John's, Newfoundland and Labrador, to parents John and Joan Bambrick. She attended Holy Heart of Mary High School and was very active in the music program there, singing with their award-winning Chamber Choir. She went on to study Political Science and English at Memorial University of Newfoundland, graduating with a Bachelor of Arts degree. During her university studies, Bambrick began performing part-time as a dinner theatre actress in various productions, and was singing with a number of community Jazz choirs.
In 1993, Bambrick moved to Ontario to study at the University of Toronto as a Voice major in the Jazz Studies Department. She graduated in 1997, with a Bachelor of Music degree and began working as a freelance musician and teacher.
She has done several TV series, Get Ed, Odd Job Jack, Booky & the Secret Santa, Wild Kratts, The Ron James Show, and Justin Time. She has been a voice in The Cat in the Hat Knows a Lot About That!, The Dating Guy, and Daniel Tiger's Neighborhood.
Bambrick is a DJ at Jazz.FM91, an all-jazz radio station in Toronto.