A seamless blend of Japanese precision engineering and international luxury design. Discover our extensive range of high-performance aluminium windows, doors, and architectural systems built to redefine modern living spaces.
TOSTEM is a globally trusted Japanese brand known for its high-quality aluminium windows and doors. With a legacy of over 100 years, we blend thoughtful design with practical functionality, setting global benchmarks in the building materials industry.
Our products, considered as an all-time favourite around the country, have been awarded with prestigious recognitions like the Red Dot, iF, Best100, and German Design Awards. Keeping quality as our priority, each of our aluminium doors and windows is built to meet international testing standards and features our patented TEXGUARD coating, offering long-lasting protection and scratch resistance for up to 40 years.
Tostem products are developed to withstand the harshest weather conditions, setting new quality benchmarks and yardsticks in the industry, which is what makes TOSTEM a leading brand in home solutions around the world.
All TOSTEM products are designed, manufactured, and assembled under an integrated production process with strict TOSTEM quality control. Extrusion dies, aluminium billet, extrusion poles, coating, pre-engineering, and hardware assembly processes are all done in TOSTEM’s factory in Thailand.
Coming soon — products in this category will be added shortly.
Engineered to JIS, ASTM and BS benchmarks to perform reliably across India's most demanding climates and seasons.
Locks, handles, and metal profiles are sized for real-world use — never under-built, never over-engineered.
Every window passes wind, air, water, noise, and sound-insulation testing before it ships.
Maximum glass area, minimal frame intrusion — keeping your view of the outside completely unobstructed.
Consistent finish and performance across every order, whether one window or one hundred.
Pre-assembled, factory-packed units that arrive ready to install — no on-site fabrication needed.
Suited equally to villas, apartments, and tall buildings — luxury and style at any scale.
Patented coating gives long-lasting lustre and protection against heat, sunlight, and water.
Robust, recyclable aluminium — eco-friendly, sustainable, and built to last decades.
TEXGUARD repels dust, so cleaning is as simple as a wipe with a damp cloth.
Casement, French, sliding, tilt-and-slide, awning, slit, glass-to-glass corner, and more — a style for every architectural intent.
Designed and tested against JIS, ASTM and BS benchmarks for dependable performance in extreme weather and temperature swings.
Verified for wind, water, air, sound and noise insulation — equally at home in coastal, hilly, and urban settings.
Every door arrives straight from our factory with quality guaranteed — whether you need one or one hundred.
Available in configurations suited to low-rise homes and high-rise developments alike.
Our patented TEXGUARD coating delivers long-lasting protection against heat, sunlight, and water.
Engineered around real user needs, with uniform performance across factories, labs, and home environments.
Considerably stronger than UPVC alternatives — and fully recyclable for eco-conscious owners.
Naturally corrosion-resistant aluminium stays rust-free and wear-free year after year.
Practically zero upkeep — simple to clean and quick to look after.
Available in sliding, folding, casement, French, and bi-fold designs to suit every space and style.
Excellent thermal insulation minimises heat loss and helps reduce your electricity bills.
Energy-free airflow keeps interiors fresh, cool, and comfortable around the clock.
Actively reduces indoor humidity to prevent mould and protect both your health and your home.
Reduces reliance on AC and fans — shrinking electricity costs and your carbon footprint.
Replaces stale indoor air with fresh outdoor air for a healthier, more serene atmosphere.
Mix doors, slots, screens, grilles, and louvers to tailor airflow to your exact needs.
Works alongside existing ventilation — exhaust fans, AC and more — for a boost when required.
Fine-mesh screens and tight seals keep insects and dust out while letting fresh air through.
Integrated security grilles provide an extra layer of protection without compromising ventilation.
KIDS Design Award–winning engineering certified safe and user-friendly for the whole family.
Clean, modern sight-lines that let in more natural light and feel inherently premium.
Smooth transitions between rooms create a sense of openness and continuity throughout the home.
Every line and surface is crafted with precision — form and function in quiet harmony.
Working hardware is hidden inside the frame — no visible screws or protruding parts. Safer for kids and cleaner to look at.
Matching colours, finishes, and handle profiles tie your interior and exterior products together visually.
Personalise with lattice patterns and glass textures to suit each room or your overall design intent.
Soft-close mechanisms, telescopic motion, and suspension rollers for stable, silent operation.
"Boundless floor" design removes thresholds and creates a seamless flow between rooms.
Subtly define spaces while preserving openness, light, and clear sightlines.
A look at the flagship pre-engineered series — from GRANTS, the panoramic-view sliding system, to WE 70, built for everyday TOSTEM quality at scale.
A glimpse of recent TOSTEM installations across residential and architectural projects.
Walkthroughs and installation showcases from our TOSTEM projects.
2021
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2021
2021 & 2023
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Hatchway Windoor is an authorised channel partner of TOSTEM (LIXIL) for the Pune region — your assurance of genuine TOSTEM products and warranty-backed installation.
Proudly partnering with leading architects, developers, and institutions.
