double glazed windows buying guide
Double glazed windows can greatly improve the energy efficiency of a home. The windows reduce the amount of heat that is lost from inside thereby improving the energy efficiency. You can easily recover the investment in the window due to reduced energy bills.

Unlike traditional single-pane windows, double glazed windows have two layers of glasses. The space between the panes reduces heat and sound from leaving the room. In addition, it prevents your house from conducting cool air from the outside.

When buying double glazed windows, you need to consider different factors. Buying the window is different from buying single-paned windows. In this guide, you will learn about invaluable tips to buy the best double glazed window for your home.

1. Manufacturing Process

You should ask whether the windows are mechanically fixed or fully welded. Windows that are mechanically fixed are generally cheaper. However, there is a risk that the screw that fixes the window will split apart. This will weaken the frame and reduce the lifespan of the window.

That’s why you should prefer windows that are fully welded. The welded windows are sturdier and tend to last for a longer period. This will save you money in the long run.

2. Type of Material

Double glazed windows are made using different materials. The common materials for the window include PVC, aluminum, hardwood, and softwood.

Aluminum windows are a premium quality window with high durability. Wooden windows are environment-friendly and have aesthetic qualities as well.

While aluminum and wooden windows are more costly, the materials are durable so you can expect the windows to last for a long time.

You should select PVC windows if you are on a budget. But as with anything you get what you pay for with these windows. Durability is not one of the highlights of this window material so you may need to replace the window after a few years. In addition, the window is not environmental friendly as compared to timber and aluminium windows.

3. Security Features

double glazed windows security features
An important thing that you should consider when buying a double glassed window is the security features of the window.

Modern windows come with security features such as an espagnolette-type multi-point lock that can lock the window in a partially open ‘night vent’ position. More expensive windows come with premium security locks such as SAC bolt lock and shoot-bolt locks that provide additional security.

Make sure that the window that you buy has a secure lock. Also, you should opt for any upgrade that is available, such as the security chain, for improved security.

Don’t forget to ask about the ‘fire escape’ features of the windows. Find out if special hinges can be installed to the window. This is generally not a standard option and may cost extra. But you should not ignore the factor when buying a double glazed window for the home. This is important for the safety and security of the household members.

4. Space Between the Panes

The distance between the two panes of a double glazed window should not be less than 12 mm. The greater the space or air gap between the panes, the better the insulation properties.

Also, you should note that the space in some windows is filled with air while in some windows it is filled with argon gas. The latter has more insulation properties but they are costly. You should ask about this when buying windows for your home.

Lastly, you should the windows are not limited to two panes. Some windows also have three panes that provide more noise and heat insulation properties. But again triple glazed windows are more costly.

5. Style of Windows

Style of windows is another important consideration when buying double glazed windows. The common style of windows includes casement windows, sash windows, and tilt and turn windows.

Casement windows are traditional windows that are attached to one or multiple hinges. This is the cheapest style of window as compared to other options.

Sash windows are also known as vertical sliding windows. These windows have one or multiple movable sashes that slide open. The windows are more expensive as compared to casement style double glazed windows.

The third common window style option is the tilt-and-turn windows. You can open the window by swinging inwards in a horizontal position or by tilting the window vertically that provides ventilation. This type of widow is more expensive than both casement and sash style windows.

6. Read Online Reviews

Make sure that you read online reviews of the seller. Find out if most of the customers are happy with the purchase from a particular seller. Avoid buying from a seller with a track record of unsatisfied customers. The windows may be of inferior quality that will not justify the price.

7. Enquire About the Price

type of double glazed windows
Price should be the last thing that you should consider when buying a double glazed window. You should buy a window that fits your budget and quality criteria.

An important point that you should keep in mind is that the most expensive is not always the best. The important thing is to look at the windows features and decide which options will be right for you.

Consider getting a quotation from at least three to four sellers. Ask them about all the features that have been discussed here in this article.

8. Refund and Replacement Policy

You should also ask them about the product refund or replacement policy Some sellers allow refund and replacement, while others only allow replacement of defective windows. You should ask the seller upfront about the policy to avoid any problems later on. Discuss all the important matters before you pay anything to the seller.

Buying a double glazed window can be worth it. The window can reduce the heating and cooling requirement.

With this window installed, you will not have to crank up or down the temperature. Your room will require less heating and cooling that will not only reduce the energy bills but also lessen the carbon footprint. You can learn more about the benefits of double glazed windows online.

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