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Condensation on Windows

Why Condensation on Your New A-Rated Windows Is a Sign They’re Working Efficiently

It’s a crisp winter morning, and you might notice condensation on your new A-rated windows. Don’t worry — this is a sign that they’re working efficiently to keep the heat in and the cold out. Unlike older windows, which let heat escape, modern energy-efficient windows reduce heat loss, helping you stay warm while lowering energy bills.

Why Does Condensation Form on New Windows?

Condensation occurs when warm indoor air meets the cold outer glass pane. With A-rated double glazing, this process happens because the windows are so well insulated that the glass surface stays cooler than older, less efficient units. Rest assured, this moisture will clear up as the day progresses.

It’s important to note that condensation on the outside of your windows is a sign of excellent energy efficiency. It means the heat inside your home isn’t escaping, and the cold from outside isn’t penetrating the glass. If condensation occurs between the panes of your double glazing, however, this could indicate a fault in the seal and may require a glass replacement service to restore your window’s performance.

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Upgrade your home this winter with a wide selection of window options, tailored for energy efficiency and style:

The Benefits of A-Rated Windows

Switching to A-rated windows keeps your home warmer, lowers energy bills, and enhances comfort during winter. Whether you’re replacing old units, installing new windows, or need a glass replacement service, our range offers unbeatable performance and style.

If you’re thinking about getting new windows for winter, trust G M Windows & Doors to deliver quality solutions designed for every property type. Say goodbye to draughts and hello to a cosy, energy-efficient home.

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Learn why condensation on new A-rated windows is normal and indicates energy efficiency. Explore high-performance windows like uPVC, bay, sash, and slimline aluminium.


Book a Call: Get in touch with us at a time that’s convenient for you, and we’ll take care of the rest.

Request a Quote: Simply send us your window specifications, and we’ll provide you with an accurate quote for your glass replacement needs.

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