Window Calculator for Indian UPVC & Aluminium Fabricators

Price UPVC casements, sliders, and aluminium windows for the Indian market. INR pricing, mm precision, and profile libraries from Fenesta to Aluplast.

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Quick Window Estimate (India)

Preview pricing only. Full calculator adds profile brand, glass type (5mm, 5+5mm DGU, 4+8+4 DGU), mesh, mosquito net, and labour at your city's rate.

Designed for the Indian Fenestration Market

UPVC-first, aluminium-capable, and tuned to the realities of sub-continental window fabrication.

1

Indian UPVC Profile Library

Pre-loaded cost data for Fenesta, Prominance, Encraft, Aparna Venster, LG Hausys, Koemmerling India, and Aluplast Dimex. Update margins to match your city's distributor rates.

2

Monsoon-Grade Sealing Specs

Every window spec carries an IS 1081 / IS 13775 check for wind-driven rain performance. Essential for coastal projects from Mumbai to Chennai where water ingress kills warranty claims.

3

City-Level Labour Rates

Fabrication and installation rates differ dramatically between Tier-1 and Tier-2 cities. Set INR/m² separately for each city or project and the calculator applies the right rate automatically.

4

GST-Ready Quotes

Built-in 18% GST calculation with HSN codes for UPVC windows (76101010) and aluminium windows (76101000). Quotes export with the exact format Indian architects and builders expect.

Window & Door Market in India

India's organised UPVC window market is growing at 12–15% CAGR, driven by high-rise residential construction in Mumbai, Bengaluru, Pune, Hyderabad, and NCR. Aluminium sliding systems still dominate commercial and villa projects, while UPVC casements now lead the residential replacement market.

Doorwin fits the realities of Indian fabrication work — sites with limited connectivity, labour paid per-window or per-square-foot, and a tight margin between supplier cost and quote price. The app works fully offline, exports GST-compliant quotes, and handles both UPVC and aluminium systems in the same project file.

Frequently Asked Questions (India)

Does it work offline for site visits in smaller cities?
Yes. Doorwin works 100% offline — measure, design, and generate quotes without any internet connection. Projects sync automatically once you're back in a 3G/4G area or on WiFi. Essential for site work outside metro cities.
Can I quote in both INR and USD for NRI clients?
Yes. Every quote can be shown in INR, USD, AED, or GBP — useful for projects where NRI clients fund villa construction but require transparent pricing. The underlying cost calculation runs in INR; display currency is a one-tap toggle.
Which UPVC profile brands are supported out of the box?
Fenesta, Prominance, Encraft, Aparna Venster, LG Hausys, Koemmerling India, Aluplast Dimex, Salamander Building Systems India, Deceuninck India, and Rehau India are all pre-loaded. Custom profiles from regional suppliers can be added in under a minute.
Is it suitable for builder projects with 100+ windows?
Yes. Builder mode lets you define a standard window schedule (type A = 1500×1200, type B = 900×1500, etc.) and apply it across flats and towers. A 200-flat project quote takes about 20 minutes — versus days in Excel.

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Built for Indian UPVC & Aluminium Work

Download free and start quoting windows that match Indian market realities.

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