Do I still need to fix duplicate titles even though they have canonicalized?

[atakala]

Well, what can I say question is on the title
Do I still need to fix duplicate titles even though they have canonicalized? 
Thank you mozzers.
I LOVE u guyz.

[Andy.Drinkwater]

If you have canonicalization in place, you shouldn't need to worry about this as much. However, from a best practice standpoint, I would try and rectify and duplication on a site.

How big is / was the problem?

-Andy

[atakala]

There are like 3000 duplicate titles which are canonicalized.

[Andy.Drinkwater]

Well hopefully Google will do it's job and recognise the canonicals. Keep an eye on your stats and if you don't see improvements, then you may need to do additional work.

-Andy