If I dont end up doing this my self.
Is there a difference in quality / thickness tints?

About how much should I be paying for my windows to be done.

I have seen prices from $75 - $250

I know the $250 is life time warrenty even though a 5 year warrenty is probably good enough for me.

I am not sure about warrenty for any of the other pices I havnt asked.

 

The best of the best,3M products,hands down,expect to pay a little more but well worth the cost.Find a shop that deals with 3M for installation.Mine has been in since 94,not a bubble,stretch or fade! Fantastic stuff from 3M.Check them out!!

 

I had mine done for $50.00 per window to match the back glass of my Durango. It has been on for six years without a problem.
FF

 

I'd shop some more , We have a shop that is $99 any car with lifetime warranty

 

I have a buddy who is a window tinter. The price is usually gonna be per window. He uses Sun-Gard tint and is usually about $50 a window. Smaller flat windows are cheaper and bigger windows with curves are more. Some rear windows have lots of curves and are insanely difficult to do and therefore pretty pricey.