Differences between Double Glazing and Triple Glazing

Should You Choose Triple Glazing Over Double Glazing?

Deciding whether to use double glazed or triple glazed windows can be a difficult task to do if you do not know how each of them differs from one another. This is why you are given the following ideas about each type of window to help you choose.

Advantages of Double Glazing

Double glazed windows are those comprised of 2 glass layers with an inert gas layer sealed in between them. Thus, it forms about two times of the insulation as a regular unit. Consider how double glazed windows can help you achieve benefits as the following:

  1. Reduces energy cost since airtight construction forms thermal insulation. As a result, it minimises the flow of outgoing and incoming heat;
  2. Enhances sound insulation through creating barriers in between the outside environment and the home;
  3. Double glazing means tougher windows which eventually improves the security level of your home or property; and
  4. Prevents damages to furnishings since these lessens the amount of heat acquired in the room.

Disadvantages of Double Glazing

There are also minor issues concerning the use of double glazed windows and here are some of them:

  1. It is impossible to repair the broken or damaged windows;
  2. Double glazed windows are more beneficial on cold months, but not during the hottest months as these trap the heat inside leading to uncomfortable room; and
  3. These types of windows have modern features which do not fit older styles.

Advantages of Triple Glazing

When properly installed, triple glazed windows will offer amazing things such as the following:

  1. Outstanding performance during extreme weather;
  2. More rigid and stronger compared with the typical windows installed at home and business establishments;
  3. Reduces sound transmission;
  4. Resists condensation concerns;
  5. Decreases heat loss;
  6. Enhances security level as these windows have thicker areas making it hard for someone to break in the property;
  7. Potential savings from energy bills as compared with double-glazed and regular windows; and
  8. Boosts thermal comfort in the building

Disadvantages of Triple Glazing

There is no perfect product or service sold in the market. Even if a product or service has been packed with incredible benefits, there’s always a chance to spot minor flaws. Just like in the use of triple glazed windows, it also brings some cons.

  1. Width limitations on casements;
  2. More expensive than double glazed windows;
  3. Not recommended for existing structures without or little wall insulation; and
  4. Heavier than regular windows which causes additional cost to the total budget on installation labour.


How do triple glazing or double glazing aid in the reduction of condensation on glass windows or doors? This may be a question that many people have in mind, however, do not get a reliable answer. Double glazing and triple glazing both offer benefits in resistance to condensation issues. Condensation is formed on cooler surfaces. So, double and triple glazing reduce it through letting the inner glass of the windows to maintain heat.

By paying attention to the pros and cons of each window type, you can make some realisations about each. Call a glazing professional at 0208 629 1266 to guide you in picking the right type of window to be installed in your home.

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