Remember also that the window will need to be tempered glass, if you try to DIY this project. While you should consult with a local remodeler (find a chapter of NARI near you, or a Builders Associatio ... read more
I'm from Wisconsin and we have a program called Focus on Energy which implements the ENERGY STAR program for improving energy efficiency of older homes. I'm not sure what you have in your region, but ... read more