Glazing is the process of installing glass windows, glass doors or glass in any other openings in the house or building. Glass Panel allows natural light and air to enter the room; it also provides thermal insulation and soundproofing to the room.

Glazing can vary from single to multiple, depending on your need and the requirements you can select. Choosing between triple glazing and double glazing can be a tough choice; each of them has its advantages and disadvantages.

Do you want to install Double Glazing windows, doors, conservatories and warm roofs? Call 1st Scenic for impeccable installation. Speak with our experts by calling 01689 829 600 or send us an email at, and we will get back to you as soon as possible.

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The debate between triple and double glazing is growing, so let’s analyse and compare the two. Both of them have their own merits and demerits; let us understand this difference in detail:

1. Construction

Triple glazing has three panes of glass separated by insulating spaces, whereas the double glazing consists of two panes with a gap. The gap is mainly filled with air or inert gas like argon and krypton. The gap in between also works as an insulating barrier and reduces heat transfer.

Double glazing has a seal value of 1.3, whereas triple glazing has a seal value of 1.1

2. Material and Insulation

Double glazing glass comes in various types of glass, like float glass or tempered glass, to give it insulation and durability. These glass panes are sometimes coated with low emissivity coatings to enhance insulation.

Whereas triple glazing glass has an extra layer of glass, this increases insulation capacities, and you can customise glass types and coating. This extra layer adds thickness and weight to the window, therefore increasing its energy efficiency.

3. Frame Material

Double glazing glass can be easily installed in uPVC, timber, aluminium or composite materials. These frame materials can be used in triple glazing as well. Choose the frame material according to your climate, budget, and needs.

4. Thermal Efficiency

Double glazing works as an effective barrier to stop heat loss and heat gain. The air traps between the two glass panels maintain a comfortable environment inside the home. This also helps reduce electricity bills as cooling and heating systems are turned on for a shorter amount of time.

On the other hand, triple glazing, which has an extra layer of glass, reduces heat transfer even more and is suitable for colder areas. In places with spring seasons or mild winters, where the user wants limited sunlight to enter the home, double glazing is more suitable.

5. Sound Insulation

Double glazing has better soundproofing compared to single pane windows. The additional layer of glass and air between the gap reduces the sound and makes the environment quiet.

The triple glaze has an additional layer of glass, which makes it completely silent good for homes near highways or very busy roads. For standard noise control, you should choose double glazing to dampen the sound. You may also have laminated glass for soundproofing.

6. Cost Consideration

Double glazing is more affordable than triple glazing. If you want to upgrade your house within budget, then choose double glazing over triple glazing. Triple glazing is more expensive because of its additional material and complex manufacturing.

7. Environmental

Both double glazing and triple glazing contribute to the environment. They are efficient and reduce carbon emissions. The triple glazing may have a slightly higher impact on the environment because of additional material and energy.

Both are great investments for a long run use and are an eco-conscious choice for minimising the carbon footprint.

8. Climate

Double glazing is suitable for cold and moderate climates for insulation and energy saving. Triple glazing is especially for colder climates where extra insulation is required, and minimum heat loss should be done.  Double glazing helps in retaining heat indoors and blocks excessive heat from the sun.

9. Maintenance

Double glazing requires minimal maintenance. You can occasionally clean it and, while cleaning inspect the seals as well. The air gap between the glass panes prevents moisture buildup and condensation, reducing the risk of mould build-up.

Triple glazing will require more maintenance and care. Check the seals and additional glass panels as well while cleaning.

10. Appearance

Double glazing and triple glazing have similar appearances. They come in a variety of styles, designs and frame options. Choose as per your liking and aesthetics. The glazing can upgrade your windows to the desired look and feel.

The house’s overall interior should match up with the frame and design of the glazed window.

11. Versatility

Double glazing gives you variety in design, glass type, frame material and thermal performance. Triple glazing gives the added benefit of an extra layer and customisation options to the users. They can be made as per your requirement, and both are versatile and can be personalised.


Both double and triple glazing have multiple benefits. They enhance insulation and give an additional layer of protection. Choosing triple glazing or double gazing depends on your budget, aesthetics, climate, requirements, insulation and soundproofing. Multiple factors will help you make a wise decision.

Do you want to discuss further about glazing or about doors, conservatories and warm roofs? Call 1st Scenic Ltd on 01689 829 600 or send us an email at