Window replacement can be an effective way to improve energy efficiency in a home.
Energy-efficient windows typically have double or triple-pane glass, which provides better insulation and reduces heat transfer. They also often have special coatings or gas fills between the panes to further improve energy efficiency.
In addition, newer windows are typically designed and installed to be airtight, reducing the amount of air leakage and drafts in the home. This can help improve indoor comfort and reduce the workload on heating systems, leading to lower energy bills and reduced carbon emissions.