storm windows vs. replacement windows

Storm windows aren't just a means of protecting the primary windows from storm damage; they can also cut down energy loss and reduce air leaking. They can be a cheap solution to reduce the energy bills of homes with inefficient primary windows, and are an alternative to new replacement windows in cold climates.

Interior storm windows are a particularly good option in historic homes, and also for those living in apartments and whenever the historic appearance of the building has to be preserved.

But it can also be a good alternative to replacement windows, in colder climates, for economical reasons. Storm Windows

Energy savings

Storm windows only make sense for homes with old and inefficient windows, in colder climates.

They don’t add anything to the insulating value of good and modern energy-efficient windows. You don't need storm windows in such cases.

Storm windows – namely interior storm windows – are particularly suited in old homes, apartments and historic homes, to improve energy-efficiency and get energy savings without a big investment and without altering the home’s exterior appearance.

When not to use storm windows

If you aren’t on a tight budget, new replacement windows can be a better option than storm windows - if your windows aren't too old and inefficient and if you aren't about to replace you old windows.

The option storm windows vs. replacement windows can be a bit difficult to answer. It depends on the degree of efficiency of your windows and on your budget and intentions.

Types of Storm Windows

Storm windows can be attached to either the interior or the exterior of the primary window and can involve several frame materials (aluminum, wood, vinyl frames...), features and types of panes. Interior storm windows are usually a cheaper and better option than exterior ones.

See, for details:
Wood, vinyl and aluminum storm windows
Exterior and interior storm windows

Benefits and costs: Storm Windows vs. Replacement Windows

Though mainly used to provide energy savings, interior storm windows can also decrease condensation and improve sound resistance - and all that at a much lower cost than replacement windows.

But storm windows require more work to maintain (and to install), can cause condensation (exterior storm windows) and aren't as efficient as new replacement windows.

Prices vary greatly, according to the features of storm windows, but they are always a cheaper solution than replacement windows.

See: Storm windows cost and choice

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