How Long Does Double Glazing Last?

How Long Does Double Glazing Last?

How Long Does Double Glazing Last?

As innovations in window technology have evolved massively in the last few years, double glazing has been a groundbreaking one.

It’s known to improve the thermal efficiency and durability of doors and windows, ensuring longevity and lasting performance. 

Here at Siesta Windows, we provide high-quality double-glazing solutions that assure thermal efficiency and enhanced durability. 

In this article, we’ll explore the lifespan of double-glazed windows and their long-term benefits so that you can make the right choice for your next window installation.

But first, let us get into its basics.

What Exactly is Double Glazing?

Double glazing involves installing two panes of glass separated by a layer of inert gas, typically argon or krypton. 

This design significantly enhances insulation, reducing heat transfer and minimising energy consumption for heating and cooling. 

Consequently, homes equipped with double glazing often command higher property values. 

How Effective is Double Glazing?

The effectiveness of double-glazed windows primarily hinges on the quality of the sealed unit. While the frame’s material and quality also play a role, any compromise in the sealed unit can undermine the window’s insulation properties.


The longevity of double glazing typically depends on various factors, such as the quality of materials, installation, and environmental conditions. On average, well-maintained double-glazed windows can last for 20 to 30 years or more. However, this lifespan can vary based on factors like:

  1. Quality of Materials: High-quality double-glazed units made with durable materials tend to last longer than cheaper alternatives.
  2. Installation: Proper installation by experienced professionals like ourselves, ensures that the windows are fitted correctly and sealed tightly, which can extend their lifespan.
  3. Environmental Factors: The location of the property can also affect the lifespan of double glazing. Homes in harsh climates or coastal areas may experience more wear and tear due to exposure to saltwater or severe weather conditions.
  4. Maintenance: Regular maintenance, such as cleaning and inspecting for any damage, can help prolong the lifespan of double glazing by addressing issues before they escalate.
  5. Usage: The frequency of use and how well the windows are cared for can also impact their longevity.

Overall, with proper care and maintenance, double-glazed windows can provide efficient insulation and performance for several decades.

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Why Choose Siesta Windows?

Between our expert team of dedicated professionals and our decades of industry service, the experience we offer our customers cannot be beaten. From initial discussions to the final steps of installation, we strive to provide you with the highest quality service and a smooth, hassle-free experience.

We are a proud FENSA registered company, reassuring our customers that we are tried and trusted professionals.

Get your project started with us by using our online quoting engine to get a free quote tailored to your specifications. Alternatively, you can contact us to discuss your requirements and learn more about what we do.

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