Does installation of energy efficient doors, windows cost more than installation of normal doors and windows?
Found this ( https://www.clerawindows.com/blog/how-you-can-save-on-energy-costs/) article about saving money by using energy efficient doors, windows, water and sewage system at home. I think it’s interesting and would like to implement this in my house. But does this mean the initial cost of installing all these will be higher than how much it usually costs? Has anyone tried this?