Replacement windows can be an excellent home improvement.
I just had the last set of original cheap aluminum single hung builder windows replaced in my home.
The seals between the panes failed years ago, the balancers were worn out and they quickly transfered hot & cold into the room.
Here is the before picture:
I chose a picture window for the opening to enhance my view of the back 40.
1" double pane with LOW-E and Argon gas. Immediate results include a cooler, cleaner room and a clear view.
I used WindowWorld to do the job.
Anyone need a bed liner for an Xtra cab Toyota T100?