05/08/2026
8 Window Myths… Busted.
When it comes to choosing new windows, there’s a lot of outdated advice floating around.
Let’s clear a few things up…
Myth: Double glazing is all you need.
Fact: The complete window system—including the frame, glass, coatings, spacer and installation—determines how well it performs.
Myth: Aluminium windows are always cold.
Fact: Modern thermally broken aluminium windows are designed to deliver excellent thermal performance.
Myth: Low-E glass makes your home dark.
Fact: It helps reduce heat transfer while still letting in plenty of natural light.
Myth: Window ratings don’t matter.
Fact: WERS ratings help you compare real performance before you buy.
Myth: The most expensive window is always the best.
Fact: The best window is the one that’s suited to your home, orientation, climate and budget.
Myth: If it doesn’t leak air, it’s a great window.
Fact: Comfort also depends on insulation, solar control, daylight and the quality of the complete window system.
Myth: All installers are the same.
Fact: Even the highest-performing window can underperform if it’s installed poorly.
Great windows aren’t about chasing the most expensive option—they’re about choosing the right system for your home.
Which myth have you heard before? Let us know in the comments. 👇
📌 Save this post for when you’re comparing window quotes, and share it with someone who’s planning to build or renovate.