The best replacement for new windows is replacement windows.

The best alternatives to new windows are rated as following:
★★★★★  replacement windows
★★  insulation
★★  storm windows
★  new furnace
★  attic insulation
★  replacement
  storms
  new tabs
  retrofit windows
  old windows

Your alternative for new windows is not listed? Suggest!
Speaking about new windows, one probably shouldn't forget about condensation.

Other search terms related to new windows and their ratings are:
★★★★★ condensation
You have in mind a companion for new windows and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of new windows in all years. Click on graph for more.
new windows
replacement windows
insulation