replace strut mounts,struts and labor cost on 2004 Buick LeSabre

I am experiencing a knocking noise when I go over a bump or making a turn on occasion! I have 59,945 miles registered on my speedometer. Should I replace both the struts and the strut mounts?

Asked by for the 2004 Buick LeSabre
Its a good idea to change all the components involved when replacing the struts, But I would have a shop troubleshoot this first because it could be the front sway bar links, ball joints etc and you can check repair prices here and locate a shop near you here