Engineered to a Japanese standard.
Japanese Technology
Every design draws on TOSTEM's Japanese manufacturing standards, refined over decades for precision, fit, and finish.
About Selective SystemsQuality Assurance & Testing
Every batch is tested against ASTM, JIS, and AAMA benchmarks for wind, water, and structural performance before it reaches your site.
How we test TOSTEM windowsSurface & Colour Perfection
TEXGUARD coating locks in colour and lustre for up to 40 years, resisting scratches, fading, and corrosion.
Why choose Selective SystemsOn-Time Delivery
Pre-engineered, factory-assembled components arrive window-in-a-box, ready for fast, precise on-site installation.
How we deliver on timeFlexible Pricing
Multiple series and specifications let you match performance to your budget, without compromising on quality.
Get a quote for your budgetCommon questions, answered.
What sizes do French windows typically come in?
They can be sized to almost any height and width, though most installations run close to floor-to-ceiling to make the most of the double-panel proportions.
Are French windows suitable for every room?
Yes — the design works well in bedrooms, living rooms, and balconies alike, anywhere a wide, bright opening is the goal.
How do French windows help with energy efficiency?
Airtight rubber gaskets and performance-tested sealing against air and water help maintain indoor temperature, easing the load on cooling systems.
What upkeep do French windows need?
Very little — the TEXGUARD coating resists dust build-up, so a wipe with a damp cloth every couple of weeks keeps the finish looking new.



