Combining Japanese innovation with modern architecture pragmatism, TOSTEM is one of the leading manufacturers of Aluminum casement windows in India. The windows are designed to provide stellar functional benefits and are the perfect choice for modern homes and offices. Our elegant collection of casement windows is tested as per global standards to perform in all weather conditions.

Available Casement Window Designs
  • Aluminium Single Casement Windows
  • Aluminium Double or French Casement Windows
  • Aluminium Push Out Casement Windows
  • Aluminium In-swing Casement Windows
  • Aluminium Out-swing Casement Windows
Casement Window Designs

Unique Characteristics of TOSTEM Windows

  • Isometric Design: Sturdy frame to sport narrow sightlines and window sash
  • TEXGUARD Coating: Patented TEXGUARD coating preventing discolouration for 40 years
  • Crescent Locking Mechanism: Usage of crescent locks to ensure greater security
  • Rubber Gaskets: Precision nano-tech gaskets for sealing against dust, water, and sound

Features of Tostem Aluminium Casement Windows

  • Large Glass Area: Our casement window designs have a slim sash and narrow sightlines to sport maximum glass coverage and enhanced visibility for expansive views.
  • User Optimised Design: TOSTEM casement windows flaunt an isometric design with stellar design benefits, including the locking mechanism, handles, and windows profile.
  • Perfect for Tight Spaces: Due to the user-optimised design, the casement windows are easy to operate. As a result, the windows are ideal for tight spaces such as a bathroom, above the stove, bedroom, etc.
  • Easy to Install: All of our casement windows are delivered in a box, meaning the windows are storage-friendly and can be easily installed, providing for a hassle-free experience.

Usage of Tostem Casement Windows

Aluminium casement windows are incredibly versatile, where you can expect optimum performance in any area or home setting. For instance: :

  • Kitchen: Due to the user-optimised design, aluminium casement windows are the ideal choice for the kitchen. Also, the TEXGUARD-plated casement windows provide stellar thermal insulation benefits, maintaining the temperature in the kitchen.
  • Bedroom: Aluminium casement windows provide sealing against water, noise, and wind. Such a solution enables the windows to foster a serene environment ideal for the bedroom.
  • Bathroom: Casement windows open all the way, making the windows a perfect solution for ensuring optimum air circulation or ventilation in the bathroom.
  • Offices: Our casement windows are installed with EPDM gaskets, meaning complete sealing against sounds. Such a soundproofing feature makes aluminium casement windows an ideal solution to create a productive environment for offices.

Available products

UPVC vs Tostem Aluminium Casement Windows

  • UPVC windows popularly known as uPVC or Vinyl Windows, are made up of a plastic powder - uPVC which is weak and has to be added with the steel to enhance the strength. In comparison, Aluminium windows are made of pure metal, meaning the windows’ strength is inherent and more sturdy.
  • UPVC window’ sections are also bulky to accommodate steel enforcing, whereas aluminium windows are sleek, providing greater strength and durability. The sleek Aluminium window frames provide better aesthetic looks and wider glass openings.
  • The favoured and inherent colour for UPVC windows is white, while dark colours uPVC windows absorb heat and hence make them a poor choice for heat insulation. Tostem Aluminium windows come with TEXGuard Anodized coated available in various colours and are tested against heat, noise, and wind insulation.
  • UPVC windows’ sections are bulky to add steel for enhancing the strength, whereas aluminium windows are sleek and can provide large window sashes with multiple designs.
  • UPVC windows are primarily ideal for cold environments, and UV is their biggest enemy. The salt spray, alkali, and UV test make aluminium windows suitable for tropical, cyclonic, cold, and extreme weather conditions.
  • Concealed frames are only possible in Aluminium Windows, but not in uPVC windows. These concealed frames help in creating an isometric look that enhances the design aesthetics.