GREFET International

  Choosing the right aluminium window system is more than selecting a frame, it’s about matching your project’s performance, style, and longevity. At GREFET, these systems are engineered solutions designed for modern architecture, backed by Belgian tech, seamless installation, and tailored support . Here’s how to make the right choice. Why Aluminium Window Systems Matter and Why Choose GREFET Aluminium is prized for its strength-to-weight ratio, corrosion resistance, and minimal upkeep. But at GREFET, it's elevated: every system is a precisely engineered union of high-grade aluminium profiles , European hardware, weather‐proof finishes, and integrated design. You're not buying parts, you’re investing in consistent performance and durability. From coastal humidity to dusty interiors, GREFET systems are built for India’s varied climates, engineered to resist warping, rust, UV degradation or movement over time. Project Types & Suitable Systems Residential Comfort & Aesthe...

  When choosing aluminium windows or doors , most of the attention tends to go to the frame. Is it slim? Is it strong? Does it look good? But here’s the thing,  tested hardware matters just as much as the frame . In fact, even the best aluminium profile can underperform or fail if paired with substandard hardware. At GREFET, we don’t treat hardware as an afterthought. It’s a critical component of every system we design and supply. Let’s break down why tested hardware is essential, what to look for, and how GREFET ensures every element of a window system, inside and out, is up to the mark. Performance Under Pressure The purpose of a window or door system is to operate reliably over decades. That reliability isn’t just about the aluminium, it’s about how the hinges carry the load, how the locks secure the sash, and how sliders glide with precision over time. Every piece of hardware affects performance. Tested hardware, especially when validated under international standards li...

  When it comes to aluminium windows, the system, hardware, and performance matter, but so does the finish. RAL colours for aluminium windows have become a key decision point for both architects and homeowners, shaping the final look of façades, interiors, and entire projects. At GREFET , we supply powder-coated aluminium systems in over 450 RAL colours , a palette that evolves every year. In 2025, we’re seeing clear shifts in colour preferences across residential, commercial, and institutional buildings. This isn’t just about aesthetics; it’s about matching performance with personality, identity with durability . Let’s break down what’s trending this year and what to keep in mind when choosing RAL finishes for aluminium windows. Earthy Neutrals are in: The Rise of Warm Grey, Clay, and Sandstone While jet black (RAL 9005) and white (RAL 9016) still dominate in volume, neutral earth tones are gaining serious ground in 2025. Think RAL 7039 (Quartz Grey) , RAL 1019 (Grey Beige) , an...

  Choosing windows isn’t just a design decision. It’s about long-term performance, insulation, aesthetics, and ease of use . When you’re searching for the best aluminium windows, what you’re really asking is: which system gives me durability, weather protection, clean design, and peace of mind? At GREFET , we don’t just design aluminium window systems, we engineer them to meet the real-world demands of architects, builders, and end users across India. With years in the fenestration field, here's how we define and deliver the best. Thermal and Acoustic Performance Should Come Standard The best aluminium windows aren’t just about looking sleek. They need to insulate against both heat and noise , especially in Indian metros where temperatures soar and traffic noise is constant. GREFET systems use: Thermally insulated profiles to reduce heat transfer High-quality EPDM gaskets for airtight sealing Double or triple glazing compatibility to improve insulation Systems lik...

  When it comes to building design, the terms window and door are often used casually. But in the world of precision engineering and premium performance, these words don’t tell the whole story. At GREFET , we don’t just design windows and doors, we engineer complete aluminium systems . That’s why we say ‘system’ & not just ‘window’ or ‘door’. In this article, we’ll explain what an aluminium system really means, why it matters, and how choosing a complete system over standalone profiles can make all the difference in aesthetics, performance, and long-term value . What Is a Window or Door ‘System’? To understand why we say ‘system’ & not just ‘window’ or ‘door’, it’s important to first define what a system actually is. A window or door system is a pre-engineered set of compatible components, including aluminium profiles, gaskets, hardware, and drainage, that are designed to work together seamlessly. It’s not just a frame and shutter; it’s a carefully tested, high-performance...

  At GREFET , slimline aluminium is more than a design choice, it’s a philosophy. Our flagship systems, SG4500, EPIC19 , and MERIDIAN36 , push the boundaries of minimal sightlines, structural robustness, thermal efficiency, and versatility. Let’s dive into what makes each system stand out. SG4500 – High-Capacity Sliding Mastery Designed for large opening requirements, the SG4500 system delivers: Robust Build : Capable of glazing panels up to 400 kg and 16 feet high. Sleek Sightlines : 22 mm for the interlock, depending on configuration. Customization : Suitable for residential and commercial sliding doors, tunnel, corner, or high-end set-ups. SG4500 is tailored for grand sliding applications like poolside, terraces, and indoor–outdoor transitions. EPIC19 – Minimalist Elegance EPIC19 perfectly balances subtle aesthetics with unmatched durability: Slimline Design : Only 19 mm visible frame—maximizing glazing area. Efficient Systems : Comes in sliding prof...

  In a market filled with aluminium system suppliers , the difference between a good brand and a great one lies in the details — the commitment to innovation, the reliability of performance, and the ability to serve both function and design. So, what does make a great aluminium system brand? At GREFET , we’ve studied the best, learned from global benchmarks, and carved out our own identity by focusing on what matters most to fabricators, architects, and homeowners alike. Let’s break down the key pillars of excellence that define a world-class system brand — and show you how GREFET delivers on each of them. 1. Design That Elevates Architecture A truly great brand doesn’t just supply windows — it complements and enhances architecture . GREFET systems are built with modern, minimal aesthetics in mind, offering slim sightlines, large glass areas, and clean finishes that seamlessly fit into contemporary and luxury design schemes. Whether it’s a sleek urban façade or a timeless villa ...

  In today’s dynamic architectural landscape, aluminium windows have emerged as a top choice for both residential and commercial spaces. Their sleek aesthetics, superior durability, energy efficiency, and customisation capabilities make them the preferred window solution across India and globally. In this article, GREFET takes you through the top aluminium window brands that are shaping modern architecture — with our own systems proudly leading the innovation curve. Top Aluminium Window Brands Redefining Modern Living As more architects, builders, and homeowners shift towards sustainable, high-performance building materials, system aluminium windows stand out for their blend of form and function. Let’s explore the most trusted and admired brands in this segment, including GREFET, India’s emerging pioneer in architectural window systems. GREFET – The Future of Aluminium Window Systems At GREFET, we are more than just a brand — we are a philosophy of design and performance. Inspir...

  Windows are more than just a frame for your view — they’re where architecture meets functionality , and where design plays a key role in how you live, feel, and experience your space. At GREFET , we’re redefining what it means to choose high-performance aluminium windows — with systems designed to handle tough weather, reduce maintenance, and look stunning while doing it. If you’re building a new space or upgrading an old one, here’s why GREFET’s aluminium windows aren’t just better — they’re smarter. 1. Designed to Perform, Built to Last When we say “ high performance ,” we mean windows that do it all — keep you comfortable, stay strong through the years, and enhance the beauty of your space. GREFET windows are built using precision-engineered aluminium systems that are tested for durability, strength, and all-weather performance. With Indian climates ranging from heavy rains to dry heat, our profiles are resistant to corrosion, fading, and leaks , making them ideal for everyt...

When it comes to building sustainably, every material matters—especially the ones that define your space. At GREFET , we design aluminium window systems that don’t just look premium—they help reduce your environmental footprint without compromising performance. Let’s explore how aluminium windows play a key role in green construction and conscious living . Aluminium: Built for a Sustainable Lifecycle Did you know? Aluminium is 100% recyclable without any degradation in quality. Feature Aluminium vs. Other Materials Recyclability ✅ 100% infinite reuse Durability ✅ Lasts decades Maintenance ✅ Low maintenance Weight ✅ Lightweight for transport Energy Efficiency ✅ Excellent thermal insulation (with proper design) GREFET windows are made using premium-grade recyclable aluminium , helping reduce construction waste and promote ...