Choosing the right top windows & doors supplier in india is crucial for any Indian building project. High-quality fenestration enhances security, energy efficiency, and aesthetics. In this guide, we profile the top 5 aluminium doors & windows suppliers in India for 2026, highlighting their products, technology, and services. We lead with Alcove Infratech, a Noida-based specialist, followed by four other industry leaders: Tostem, AluPure, Encraft, and Eternia. Each offers premium systems, certifications, warranty cover, and pan-India service.
1. Alcove Infratech (Noida) – Premier Precision Solutions
Alcove Infratech Pvt. Ltd. is a complete fenestration solution provider specialising in made-to-order uPVC and aluminium windows and doors. With over 30 years of experience and European fabrication machinery, Alcove delivers “high-performance” systems engineered for Indian climates. Its product range includes casement, sliding, tilt-and-turn, lift-and-slide, folding patio doors, and more. Alcove has installed 1.2 million+ sq. ft. of systems across Delhi, UP, Haryana, Himachal, Uttarakhand, Rajasthan, MP, Punjab, Goa, and Nepal, demonstrating a strong regional network.
Technology & Materials: Alcove uses precision-engineered profiles and premium hardware, ensuring weather resistance, sound insulation, and energy efficiency. Its emphasis on custom fabrication means each window/door fits exactly to the project specifications.
Certifications & Quality: While Alcove’s site emphasizes “European technology” and stringent testing, it specifically highlights precision engineering and compliance with global standards. Customers praise Alcove’s quality and warranty support (e.g., “Excellent product quality…Highly satisfied with service and warranty support”).
Key Projects: Alcove’s installations range from luxury homes to commercial complexes; for example, signature works include fixed, casement, corner, and gable windows showcased on their site.
Pricing & Warranty: Alcove positions itself as a premium brand with competitive pricing for quality. Its testimonials note a reliable warranty and post-sales support. (Exact pricing varies by project scope.)
Installation & Service: Alcove operates a Noida factory and experience centres in Noida, Shimla, and Mohali (Chandigarh). It offers end-to-end service from design through installation, even providing renovation services to replace old windows.
Contact:
- Head Office: A-144, Sector 80, Noida, Uttar Pradesh 201305.
- Phone: +91 9958-2213-27.
- Email: sales@alcoveinfra.com.
2. TOSTEM India (Lixil) – Japanese Innovation & Durability
TOSTEM (part of Lixil) is a global Japanese brand renowned for high-end aluminium systems. In India, Tostem offers a diverse range of sliding, casement, folding (bi-fold), tilt-slide, and steel entrance doors. Its products carry international awards (Red Dot, iF, German Design Award) and feature TEXGUARD coating for up to 40-year scratch protection.
Technology: Tostem’s “window-in-a-box” ensures factory-finished frames delivered for error-free site installation. Units are pre-engineered with EPDM gaskets and Japanese design for sealing and smooth operation. Tostem rigorously tests to ASTM/EN standards (ASTM E330 wind load, etc.), and its systems are WiWA-certified for wind/water resistance.
Certifications: “Each of our aluminium doors and windows is built to meet international testing standards”. TEXGUARD and other surface treatments guard against corrosion and color fade.
Warranty: Tostem systems carry a long-term warranty on frames (often ~10-15 years) and industry-leading hardware warranties. (Exact terms can be obtained from dealers.)
Projects & Network: With 135+ showrooms nationwide (Delhi, Mumbai, Bangalore, etc.) and a flagship Gurgaon office, Tostem serves both residential and commercial projects. Signature installations include luxury apartments and offices benefiting from slim-profile windows and folding doors.
Contact:
- Corporate Office: LIXIL Window Systems Pvt. Ltd., Plot 75, Sector 8, IMT Manesar, Gurgaon, Haryana.
- Support Phone: 1800-103-6855 (toll-free).
- Email: support.lwsindia@lixil.com.
3. AluPure (Profine/Koemmerling) – German Precision Systems
AluPure is a German-engineered aluminium systems brand (by Profine GmbH) introduced to India over two decades ago. It boasts a comprehensive product line of casement and sliding windows, as well as doors (sliding, folding, premium interlock, etc.). AluPure’s “Made with German precision” ethos yields elegant, high-quality profiles in unlimited colors and sizes.
Materials & Tech: AluPure uses Koemmerling aluminium profiles with advanced extrusion. Its systems emphasize energy efficiency and security – “highest level of quality and security” in a classic style. AluPure offers specialized sliding systems (Opulenz, Majestic) and facade systems (curtain walls, skylights) for architects seeking sleek minimalism.
Certifications: AluPure holds multiple performance certificates (wind load, water tightness, etc.) from BSI and others (see “Certificates” section). Its association with Profine implies adherence to German and European norms.
Pricing & Warranty: As a premium German system, AluPure tends toward higher-end pricing. Standard warranties are typically 10-12 years on profiles.
Network: AluPure has channel partners nationwide (Delhi, Mumbai, Bangalore, etc.). Its Delhi office (Kailash Building) supports architects and contractors, and local fabricators install its systems.
Contact:
- Office: Profine India Window Tech. Pvt. Ltd., 5th Floor, Kailash Building, 26 KG Marg, New Delhi – 110001.
- Phone: +91 11 4236 8600.
- Email: alupure.india@profine-group.com.
4. Encraft India (DCJ Group) – PAN-India Fabricator
Encraft Aluminium is part of DCJ Group (a leader in PVC extrusions) and is a major Indian aluminium windows/doors fabricator. Encraft offers all standard types (casement, sliding, tilt-turn, pivot, etc.) in its 53 Series and other systems. It highlights make-in-India reliability: “precision-engineered systems offer a lifetime of strength and security” tested for India’s climate.
Products: Encraft’s portfolio spans residential and commercial needs (53 Series casement, vertical sliders, lift & slide doors, etc.). It also offers wooden-look finishes and multiple color options.
Manufacturing & Tech: In-house extrusion plant (Okhla, Delhi) ensures lead-free, ROHS-compliant profiles. Encraft boasts advanced test rigs for wind (up to cyclone standards) and sealing – a unique USP among rivals.
Network: Encraft has 300+ partner installers and 300+ city presence (Delhi NCR, Mumbai, Chennai, Bangalore, etc.). This pan-India coverage makes it easy to get installations and service.
Projects: Major residential, corporate, and retail projects across India use Encraft systems. It has supplied to hospitality and high-rise buildings.
Certifications: Profiles are ISO-certified and meet stringent benchmarks.
Pricing & Warranty: Positioned as value-for-money, Encraft emphasizes “hassle-free installation at affordable prices”. Warranties typically cover 10 years on profiles (longer on PVC systems).
Contact:
- Head Office: Okhla Industrial Estate, Phase III, New Delhi-110020.
- Phone: 011-40922210.
- Email: info@encraft.in.
5. Eternia Windows (Hindalco/Aditya Birla) – Ultra-Strength Systems
Eternia Windows is a young but powerful brand backed by Hindalco (Aditya Birla Group). It leverages Hindalco’s Duranium™ aluminium and advanced European Tech. Key products include “Duranium” and “Duraslim” systems. Duranium frames are cyclone-tested for Indian conditions and are 40% stronger than standard aluminium. Its WiWA™ certification ensures exceptional wind and water resistance.
Technology: Eternia’s unique Cyclone Tested Duranium™ technology means high-mass aluminium profiles for strength. Its sliding and casement windows use high-quality sealing gaskets, ensuring they are dust-, rain-, and wind-proof. Multiflex multi-point locks and heavy hardware deliver enhanced security.
Warranty: Eternia offers an industry-leading 12-year warranty on frame profiles and 5 years on hardware – one of the longest in the market. This reflects confidence in its materials (Alupaint finishes, best-in-class rollers).
Network: Eternia is rapidly expanding across India with showrooms and authorized fabricators. Its toll-free number (+91 9769 940000) and Delhi/Mumbai offices support customers.
Certifications: All systems are tested to ASTM/EN/WiWA standards. Its Duranium and Duraslim ranges have undergone rigorous sound and air-tightness tests.
Contact:
- Sales: +91 9769 940000 (India).
- Email: sales@eterniawindows.com (via site form).
- Office: Aditya Birla Group building solutions (Delhi).
Conclusion and CTA
These five suppliers represent the pinnacle of aluminium window and door manufacturing in India. Alcove Infratech leads with tailored solutions and a proven track record, while Tostem, AluPure, Encraft, and Eternia bring their own strengths in innovation, network, and durability. Homeowners and builders should compare specifications, warranties, and local availability when choosing. For state-of-the-art fenestration with end-to-end service, contact Alcove for a free consultation and quote.
FAQs
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Q: What makes aluminium windows better than alternatives?
A: Aluminium frames are lightweight yet strong, require low maintenance, and accommodate large glass panels. Modern aluminium systems (like those above) offer excellent insulation and security. -
Q: Are these suppliers suitable for commercial projects?
A: Yes. All five brands offer robust commercial-grade systems. Tostem and Eternia, for example, excel in large façade projects (curtain walls and heavy-duty doors). -
Q: How do I ensure correct installation?
A: Choose a supplier with a strong installer network. Alcove, Encraft, and Tostem provide certified installer teams. Also, verify that the installer follows manufacturer guidelines and safety standards. -
Q: What kind of warranty comes with these windows?
A: Typically 10–12 years on aluminium profiles and 3–5 years on hardware. Eternia offers 12+5 years. Always check the warranty card before purchase. -
Q: How to get quotes from Alcove and others?
A: Visit the suppliers’ websites or contact them directly (see above contact info). Many offer free site surveys and quotations to fit your project requirements.
