So, even if your windows don't seem that old, or when you feel they just require a bit of repairing, or some paint, what you might not understand is they are costing you much more than it might appear. Triple glazed windows are known to supply far better insulation on account of the simple fact they have an additional layer and extra air space.
The glass would have to be extremely thick and would be quite heavy, perhaps overwhelming any material employed in a normal window frame. A security glass that's encased in an old and rusted frame that may easily be unhinged isn't going to provide complete security. activerain.com
Otherwise, then read on as you're able to find out the way to soundproof your windows considerably more cheaply.