How long do double glazing windows last?

The lifespan of your double glazing will depend on several factors. It isn’t a “one size fits all” scenario. The condition of your home in general, its location, and the quality of installation and manufacturer can all affect the amount of time you’ll get out of your double glazing. Generally, however, if these factors are all considered, your double-glazed windows should last between 20-30 years.