Tel: 021 451 8370 Freephone: 1800 636363

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How to measure for Double Glazed Windows

Over 20% of heat loss in the home is caused by outdated or old windows and doors, which result in costly home heating bills. Installing quality air tight, good quality windows ensures a well-insulated home. We have put together a guide for you on how to measure for Double Glazed Windows for your home.

To measure for double glazed windows please follow the steps below:

  • Always take measurements from outside
  • Measure render to render (or brick to brick) outside width and height
  • Measure the window in three different places (Centre, left & right): Height and top bottom and centre for the width).
  • You use the smallest size and deduct 10mm from both the height and width.
  • All measurements need to include the total size, for example, the cill, frame and any other add-ons/ extenders.

If you need advice on measurements you can always get in touch with our team today Freephone 1800 636363

The types of windows we supply & install


Shaped Windows

Shaped Windows

Shaped frames create a unique look and feel to any renovation project or new build home. We can create frames in virtually any shape, to gothic arches, round portholes and unsymmetrical shapes. Our shaped frames are designed to complement our Inliten window range. We have a great section of glazing and colour options available.


French Windows

French Windows

French windows are stylish, versatile and secure, designed in the same style as French doors. This style of window adds a sense of elegance to your home. With the ability to open on one side or both sides and two outward openings, this style of window can serve as fire exit and also maximises ventilation.


See all Windows


Tilt & Turn

Tilt & Turn Window

This style of window offers added convenience features and added safety to the traditional style window. Tilt and Turn windows are extremely easy to operate, the tops can tilt in towards the room to enhance ventilation “Tilt position” and in the “Turn position” the window opens inwards at 90 degrees, allowing it be safely and easily cleaned inside your home, along with being a suitable fire exit.

Casement Windows

This style of window is the most popular and versatile window design, Casement windows offer excellent protection against the elements. Casement windows are hinged at the top or on the side. These windows are also the most energy efficient option for the majority of homes. Our Casement windows come in a wide range of styles and decorative finishes.

Click here to download free brochures

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