System Aluminium

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uPVC Windows

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About OKNA

OKNA, as an organization, holds the ability to contribute to the needs of fulfilling an important aspect of the demand by making the best uPVC & slim aluminum windows and doors available for this growing ecosystem. As one of India's leading integrated uPVC and luxury aluminum Windows and Doors solutions companies, OKNA has a state of art fabrication facility that is spread over an area of around 27760 sq.ft. and is fully equipped with Turkish Technology automatic machines.




Our Products

OKNA is a leading Indian brand in fenestration of premium uPVC windows , system aluminium and minimal sliding systems.


Benefits

With our extensive range of products, get assured hassle-free experience and thoughtful benefits!

Why Choose Us?

  • Affordable Pricing
  • Fastest Delivery
  • 20 Years of Warranty
  • Strength and Durability
  • 40+ Colors Options Available
  • 10 Years of Hardware Warranty
  • Quick After-Sale Service
  • Multi-locking hardware

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What People Say About Us


Frequently Asked Questions


What is the life of OKNA's uPVC Doors and windows?


OKNA's uPVC windows and doors are highly durable and weatherproof. These require low maintenance and are well-suited for Indian weather conditions. The average life span of uPVC windows and doors can range more than 25-30 years.

Are uPVC doors and windows noise insulated or acoustic?


Yes, OKNA doors and windows can insulate external noise, hence they are acoustic. They are engineered and installed with precision to eliminate any possible gaps and block out the outside disturbance. With features like double sealing, fusion welding, silicon sealant, and laminated glass, uPVC doors by OKNA are the perfect choice

How to clean uPVC doors and windows?


Cleaning our uPVC doors and windows is super easy. All one needs to do is regularly wipe it with a wet microfiber cloth and that is more than enough to give your door a long service life.

What is the Maintenance of System Aluminium windows?


Both anodised and painted aluminium should be cleaned on a regular basis. Warm water should be used with a dilute of a non-aggressive, non-acetous detergent without ammonia for cleaning the aluminium. Then you should thoroughly rinse the aluminium with clear water and dry using an absorbing cloth. If water and mild detergents are not enough to clean the aluminium fenestrations there are detergents that have been specially developed for aluminium surfaces. These detergents contain light abrasive elements and can be used with a synthetic cleaning cloth. In all cases, it is important to completely rinse surfaces with clear water and dry them thoroughly, especially the corners and the bottom profile. In order to protect and increase the life cycle of the aluminium, it may be treated with a very thin clear coat of water-resistant film available.

What is meant by the Aspect Ratio?


The aspect ratio of any item is the proportional relationship between its width and its height. It is commonly expressed as two numbers separated by a colon, as in 16:9. In the case of windows, it purely depends on the window sizes which are given by the architects and designers. A Fabricator can always refer to the max & min size limitations given by Salamander in the guidelines. It plays a major role in the structural stability & functioning of the windows. For e.g. in a casement system, the recommended aspect ratio is 1:1.5. Whereas in Sliding Height to Width Ratio should be less than 1:2.5

What is U value?


The heat transfer coefficient (k- or U- value) is the amount of heat in watts per unit of time, which is transferred through 1 sq.m of glass surface per degree Kelvin difference between internal and external temperature. A measure of the rate of non-solar heat loss or gains through a material or assembly. The lower a window’s U-value, the less non-solar heat it transmits.

What is EPDM?


EPDM rubber is a synthetic rubber polymer developed in the 1961s. EPDM is an abbreviation for Ethylene Propylene Diene Monomer.

Are the System windows by OKNA customizable?


Being one of the leading manufacturers of the system aluminium and uPVC windows, we make sure that our customers have the flexibility of choosing products based on their requirements. We don’t have standard measurements for the windows or readymade aluminium windows. Our technical team visits the client site and measures the dimensions of the aperture, and only then do our designers get to work. Small or large, with OKNA, every window is specially manufactured and can be customised according to your needs.

Does OKNA offer colour options in System Windows and Doors?


Yes, regardless of whether you wish to get uPVC doors or windows, you can choose from a variety of options such as White, Grey, Black, Walnut, Mahogany and dark oak. And in aluminium doors and windows, we have more than 50+ colour options with 20 years of warranty. You can easily pick one according to the décor of your room or house and choose the best indoor or main aluminium doors for your home or establishment.

Why there is no Fly mesh System in uPVC casement windows?


Alternatively, pull down & Pleated mesh system is available with OKNA system windows and doors as well.


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1800 102 3134