"Window restoration has several advantages over window replacement:
Preservation of historic value. If the windows are part of a historic building, replacing them can reduce their historic value. Restoration can preserve the original appearance of the windows and artificially age the new parts to match them.
Improved insulation. Window restoration can help eliminate the causes of loose fit and damaged sealing materials, which will improve insulation and save energy.
Cost-effective. Window restoration can sometimes be more cost-effective than replacement, especially if the windows are made of quality materials and have an original design.
Possibility of preserving and restoring materials. Window restoration can allow for the preservation and use of original materials such as wood or glass, which can be an environmentally more sustainable choice than replacing windows with new ones.
However, some windows may be too damaged or worn to be restored, and in such cases, replacing the windows may be the only solution.
I have used retrofit single glazed windows thanks to the company
https://scottjameswindows.co.uk/single-glazed-windows/ . I recommend them. "
