She was a Progressive Conservative member of the Legislative Assembly of Ontario representing the riding of Burlington from 2007 to 2011.
Savoline served as chair of the Regional Municipality of Halton from her original appointment in 1994 until her retirement in 2006.
In 2000, as a result of changes to the Ontario Municipal Act, she became the first person to be directly elected to that position by the voters of Halton.
At the local party's nomination meeting on 14 December 2006, she narrowly defeated former Miss Canada Blair Lancaster, 251 votes to 205.
[2] In the ensuing by-election, Savoline faced several opponents, but her closest competition was Liberal candidate Joan Lougheed, a former long-time Burlington city councillor who had narrowly lost to Jackson in the Burlington mayoral race the previous fall.