Eternia Windows

What Eternia Windows does

Eternia Windows is a premium aluminium windows and doors brand operated as a business unit of Hindalco Industries Limited, the metals flagship of the Aditya Birla Group and the world's largest aluminium manufacturer. The company sells engineered aluminium fenestration systems across three product tiers — Eternia Duraslim Edge (premium ultra-slim profiles), Eternia Duraslim (mid-range), and Eternia Essentials (entry-level) — covering sliding, casement/openable, tilt-and-turn, lift-and-slide, and slide-and-fold configurations for residential, villa, and high-rise applications. Its core technical differentiation rests on Duranium™, a patent-filed proprietary aluminium alloy developed by Hindalco engineers and claimed to be 40% stronger than standard aluminium with cyclone-tested durability, and on the WiWA© certification system, India's first independent wind-water-air performance rating (1-10 scale, tested to ASTM and BS EN standards). The business sells through a hybrid GTM: enterprise field sales targeting marquee luxury developers (Rustomjee, Runwal, Piramal Realty, L&T Seawoods, Birla Estate, Tata Projects, Appaswamy), a 170+ authorized channel partner network across 100+ Indian cities, and 50 retail experience centres scaling toward 100. Pricing is quote-based and configuration-dependent (size, location, type), with revenue supplemented by installation services, annual maintenance contracts, and customisation (colours, finishes, hardware). The company carries no AI/ML components in its product stack and operates as a conventional materials-engineering and brand-led building products business.

Name

Eternia Windows

Legal name

Eternia (Brand of Hindalco Industries Limited)

Website

https://eterniawindows.com

Company type

Private

Founded year

2026

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Eternia Windows is an Indian premium aluminium windows and doors brand operated by Hindalco Industries (Aditya Birla Group), selling engineered Duranium™-alloy fenestration systems to luxury residential developers and premium homeowners through a hybrid of direct enterprise sales, 170+ channel partners, and 50 retail stores.

Ownership category

akta.pro rank

Product category

Aluminium Windows and Doors

NAICS

Metal Window and Door Manufacturing (332321)

SIC

Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Windows (IMADAIAC)

akta.pro secondary industry

Aluminum Value-Added Components (Automotive, Aerospace, Packaging, Building Systems) (IMAKACAM)

Keywords

• Aluminium window systems
• Sliding doors
• Architectural fenestration
• Premium glazing solutions
• Building envelope products

Headquarters

HQ city

Mumbai

HQ country

India

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Aluminium Window and Door Systems: Sale of premium aluminium windows and doors across three product ranges: Duraslim Edge, Duraslim, and Essentials. Products include sliding windows/doors, openable/casement windows, tilt and turn windows, lift and slide, slide and fold, and corner sliding systems.
2. Customisation and Finishing Services: Custom window design services with options for colours, finishes (anodized, wood coated PVDF, powder coating), glass types, and hardware. ForeSense tool for window design.
3. Installation and After-Sales Service: Professional installation through authorised fabricators and 7-day call centre support. Annual maintenance service offering cleaning and maintenance by trained professionals.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Eternia Windows manufactures and sells premium aluminium window and door systems across three product ranges — Duraslim Edge, Duraslim, and Essentials — engineered using a proprietary Duranium™ alloy that is 40% stronger than standard aluminium. The company operates a 120,000 sq ft manufacturing facility in Bilaspur, Gurugram, producing up to 250,000 sq ft of windows monthly, and distributes through 170+ channel partners and 50+ retail stores across India.

Product overview

Eternia Windows is a premium aluminium windows and doors brand from Hindalco Industries (Aditya Birla Group). The product portfolio comprises three ranges: Eternia Duraslim Edge (premium ultra-slim), Eternia Duraslim (mid-range slim), and Eternia Essentials (entry-level). Window types include Sliding, Openable/Casement, Tilt & Turn, Lift & Slide, and Slide & Fold systems. Key proprietary technologies include Duranium™ (patented 40% stronger aluminium alloy) and WiWA© (wind, water, air certification system). Products are available by room (bedroom, living room, kitchen, balcony) and serve both residential and luxury projects. The company operates manufacturing facilities in Bilaspur/Gurugram and has 50+ experience stores across 100+ cities.

Differentiator

Problem solved

Functional benefit

Brands

• Duranium™: Patented aluminium alloy invented by Hindalco exclusively for Eternia windows. 40% stronger than standard aluminium, cyclone-tested, enabling slimmer profiles with larger glass panels.
• WiWA©
• Eternia Duraslim Edge
• Eternia Duraslim
• Eternia Essentials

Products and services

• Eternia Duraslim Edge

Quantifiable outcome

• 40% stronger than standard aluminium
• +4 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Hindalco Industries Ltd (Aditya Birla Group)coreOthersEternia is a subsidiary/brand of Hindalco Industries Ltd, the metals flagship of Aditya Birla Group. Hindalco is the world's largest aluminium manufacturer. Eternia represents Hindalco's transition from material supply into higher-value engineered building solutions. The Group has 150+ years of legacy providing trust and manufacturing expertise.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• AIS Windows (Asahi India Glass): AIS Windows is the fenestration arm of Asahi India Glass, one of India's largest integrated glass manufacturers. Offers uPVC and aluminium window systems with similar enterprise-dealer-retail distribution, making it a direct competitor in branded architectural glazing.
• Aparna Venster: Aparna Venster, part of Aparna Enterprises, is a large uPVC and aluminium windows manufacturer with an established pan-India presence. Competes directly with Eternia in the premium residential and developer project segments.
• Schüco India: Schüco is a German premium aluminium and steel systems company with India operations serving luxury residential and commercial high-rise projects. Directly comparable to Eternia in the ultra-premium architectural fenestration segment with similar developer and architect customer base.
• Reynaers India: Reynaers is a European (Belgian) aluminium systems supplier with established India operations serving premium architectural projects. Competes with Eternia in the high-end residential and commercial aluminium window and door segment in India.
• Fenesta: Fenesta is India's largest branded windows and doors company (part of DCM/Shyam group), offering uPVC, aluminium, and wood systems through a large pan-India dealer and franchise network. Directly competes with Eternia in residential windows, particularly in the premium and mass-premium segments.
• Encraft India: Encraft India is a leading uPVC and aluminium windows and doors brand with a national dealer network. Operates in the same premium residential and commercial fenestration market as Eternia with overlapping customer profiles among developers and architects.
• Lingel Windows: Lingel Windows is a German-engineered uPVC and timber-aluminium window brand with India manufacturing and distribution. Competes with Eternia in the premium and luxury residential fenestration market, particularly for villa and high-rise projects.
• AluK India: AluK is a global aluminium building systems company with India presence serving residential and commercial projects. Competes with Eternia in branded aluminium window and door systems for premium real estate developers.

Emerging players

• Winsquare (Lingel-Winsquare): Winsquare is an emerging aluminium and uPVC windows and doors brand in India with growing presence in the premium residential segment. Comparable to Eternia as a premium-positioned branded window player, though with smaller scale and narrower product range.

Broad incumbents

• Saint-Gobain India: Saint-Gobain India is the local arm of the global building materials conglomerate, offering glass, gypsum, and fenestration products including windows. Overlaps with Eternia in the premium residential and commercial building envelope market but is a much broader incumbent with diversified building-products portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/EterniaSolution
• Facebookfacebook.com/EterniaSolutions

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Eternia Windows