The best replacement for window units is central air.

The best alternatives to window units are rated as following:
★★★★★  central air
★★  central air conditioning
★  central ac
★  central air costs
★  central heat and air
  central air more efficient
  central a c
  portable air conditioners
  central heat air
  portable ac
  central air cheaper

Your alternative for window units is not listed? Suggest!
Speaking about window units, one probably shouldn't forget about heat and air conditioning.

Other search terms related to window units and their ratings are:
★★★★★ heat and air conditioning
★★ air conditioner and heating
You have in mind a companion for window units and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of window units in all years. Click on graph for more.
window units
central air
central air conditioning