Best affordable hair salon in Sudbury?

Looking for a salon in Sudbury that has a good track record with colour correction. I’m trying to get back to my original, very light ash/GREY brown with a colour correction, everyone I’ve ever gone to for a root match has just given me all over dark brown colour that is way too warm. Has anyone ever gotten a perfect root match somewhere? Looking to get one so I never have to dye my hair again.