Double Glazed vs. Triple Glazed: What’s the Difference?
- Phoebe Lee

- Jul 4
- 2 min read
When we need to choosing energy-efficient windows or doors for our constructions, one of the most important decisions we'll make, is whether to use double or triple glazed. Both options offer major advantages in terms of insulation, noise reduction, and comfort—but what exactly is the difference between them? And how we should choose the number of glass layers? Let us analyse the situation and help you make the best choice for your home.

🔍What is Double Glazed?
Double glazed is a type of glass construction for windows or doors, meaning that it has two layers of glass separated by a spacer and a sealed air or gas gap (usually filled with argon gas). Double glazed acts as a thermal or cold barrier, reducing heat transfer between the interior and exterior.
Benefits:
Improved energy efficiency compared to single glazed
Reduces outside noise
Prevents condensation on interior glass surfaces
More affordable than triple glazing

❄️ What is triple glazed?
Triple glazing is the addition of a third layer of glass to the double glazing of a window or door, where the three layers are combined to form two spaces and filled with air or gas. As a result, this extra layer of glass further improves insulation and overall performance in extreme climatic conditions.
Benefits:
Excellent thermal insulation, ideal for cold or harsh climates
Better sound insulation than double glazed
Higher safety due to an additional layer of glass
Increased energy savings over time for constructions

🔁Double Glazed vs. Triple Glazed: Item-By-Item Performance Comparison

🏠Which One Should We Choose?
Choose Double Glazed If:
If your home is located in an area with a mild climate and you are looking for a cost-effective solution as well as upgrading your single pane windows to a new one. Then we suggest you double glazed for your home.
Choose Triple Glazed If:
If Your home is located in an area that is more colder or hotter and requires additional soundproofing, or you want to maximize the energy efficiency and long-term comfort of your home.
Pro Tip For You: Don’t forget to consider the window frame material and installation quality, they can impact performance as much as the glazed itself.
✅ Final Thoughts
Both double and triple glazed offer excellent performance improvements over single glazed, but the best and suitable choice depends on your local climate, energy targets and budget. At Kimyuda, we offer bespoke double and triple glazed aluminium windows and doors to suit residential and commercial buildings in a variety of environments.
Need Door and window specialists’ help deciding?
Contact us at any time for a free consultation or to learn more about our energy-efficient window solutions!






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