• Weather Proof Aluminium Windows - Eternia by Aditya Birla Group

    Shut the
    world out
    when you
    need to

  • WiWA Certified Aluminium Windows & Doors - Eternia by Aditya Birla Group

    Let the world
    in when you
    want to

About WiWA©

The WiWA© effect: a safer, quieter and cleaner home.

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eternia windows wiwa

Are your windows tested and certified for better protection? Know your WiWA© score

The science behind WiWA©

WiWA© stands for wind, water and air. This is because Eternia’s windows are tested for three important parameters. Each parameter is rated from 1 to 10, with 10 being the highest.

1. Wind pressure: how well your windows can handle heavy winds, up to a cyclonic range
2. Water pressure: how well your windows can keep out water, even the heaviest of rains
3. Air permeability: how well your windows keep out loud noises, pollution and heat: creating a quieter, cleaner and cooler home.

Our windows are tested to meet the strictest international standards.

The wind, water and air scores will help you make a decision about what windows are perfect for your home.

For example, if you live in a city with extremely heavy monsoons, look for a high water score. Similarly, if you live in a very noisy or polluted area, look for a higher air score.

We have designed a special algorithm which will understand your home and the problems you face with your current windows, and recommend a window with the perfect WiWA© score for you. Click here.

A WiWA© score allows you to gauge the performance of windows on three parameters:wind pressure, water tightness and air permeability.
Helps you select a window.For example, if you want a window that can handle cyclones, check the wind parameter.
A scientific performance guarantee, since our windows are tested and certified against global standards.

How WiWA© works, taking an example of a home in Delhi.

WiWA Tested Sliding Aluminium Windows & Doors - Eternia by Aditya Birla Group
  • Home located in Delhi, on the 10th floor of a high rise apartment
  • Gets really hot in summers and freezing cold in winters
  • Rains can also be extreme
  • Extremely polluted and noisy
Wind Icon

Wind score of 8/10, as cyclones are uncommon

Rain Icon

Water score of 8/10, since heavy rains occur sometimes

Air Icon

Air score of 10/10, since noise and pollution are a serious problem

Tell us where you live and the problems you face with current windows. Our unique WiWA© score will tell you which window is just right for you. Know your WiWA© score

Frequently asked questions

Yes, all Eternia and Erigo windows are WiWA©-certified. Eternia range windows are also made with a world-first Duranium® alloy for extra toughness and improved finish.

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