Triple Glazed Windows: A Worthy Investment or Over-the-Top September 19, 2014 Triple glazed windows can provide an incredible amount of energy efficiency. The standard windows that are installed in Toronto homes are double glazed. This basically means that there are two panes of glass that are vacuum sealed. More energy efficient windows are sealed using argon or krypton gas. Krypton gas is more energy efficient than argon, but either one will protect against the cold during the long winter months much better than having no gas sealant at all. When shopping for replacement windows for your home, you may be wondering whether triple glazed windows are worth the investment. Frankly, it all depends on your house and your particular energy bills at this time. One of the major concerns with regard to triple glazed windows is their weight. The more glass that you have on a window, the heavier they become. This can complicate installation and certain support structures may not be able to handle larger triple glazed windows. That being said, triple glazed windows that are sealed using krypton gas can be up to 80 percent more energy-efficient than single pane windows. In general, triple glazed windows will save you about 20 to 30 percent on your energy bills over similarly sealed double glazed windows. If you enjoy keeping the heat on relatively high during the winter, this can save you a considerable amount of money over time. If you have a tendency to keep your heat down during the winter in an effort to save money, then these types of windows are not going to give you the same amount of return on your investment. The vast majority of Toronto area homeowners choose double glazed windows because of the cost up front. Double glazed windows will save you a fair amount of money on your utility bills every month during the winter. If you rely on central air conditioning, they will also save you money during the summer months. It all basically comes down to your personal preferences but be prepared for a much more significant investment if you want to go with triple glazed windows. You may also need a window expert to come and look at your home to make sure that the walls can support the weight of triple glazed windows.