i was wondering if car toys or any other place similar would install dynamat, i already purchased the dynamat, but dont want to install it, so do they offer that service?
Of course they'll install it...... for a price. I'd bet they'd charge you enough to overcome the profit they didn't earn by selling you the product in the first place.
It isn't "hard" per say, but it's time consuming and tedious. Your labor will be through the roof. If you have time, patience, and a little bit of basic mechanical/install know how, you should do it yourself.