The Grants series is Selective Systems' flagship range of TOSTEM windows and doors, built around a slimmer frame that opens up more glass per opening for a wider, more panoramic view. Every profile carries 50 years of Japanese engineering history, an anodised TEXGUARD coating for lasting colour, and the same pre-engineered, window-in-a-box construction across the full window and door range.
Engineered to a Japanese standard.
Japanese Technology
Every design draws on TOSTEM's Japanese manufacturing standards, refined over decades for precision, fit, and finish.
Learn MoreQuality Assurance & Testing
Every batch is tested against ASTM, JIS, and AAMA benchmarks for wind, water, and structural performance before it reaches your site.
Learn MoreSurface & Colour Perfection
TEXGUARD coating locks in colour and lustre for up to 40 years, resisting scratches, fading, and corrosion.
Learn MoreOn-Time Delivery
Pre-engineered, factory-assembled components arrive window-in-a-box, ready for fast, precise on-site installation.
Learn MoreFlexible Pricing
Multiple series and specifications let you match performance to your budget, without compromising on quality.
Learn MoreCommon questions, answered.
What sets the Grants series apart from Selective Systems' other series?
Grants is built around maximising glass area — a slimmer frame design lets in more light and a wider view than a standard-frame window of the same size, without giving up structural strength.
Which products are available in the Grants series?
Sliding, casement, awning, fixed, and glass-to-glass corner windows, alongside sliding, casement, French, and corner-slider doors — all engineered on the same Grants profile.
Is Grants suited to residential and commercial projects alike?
Yes — the same pre-engineered, factory-made construction performs consistently whether it's fitted into a home, an office, or a larger façade.

