Smart Window ROI Calculator
See the honest payback of switchable smart glass (PDLC / electrochromic) versus ordinary glazing plus blinds. Get the simple payback, annual saving and 15-year ROI. In India, smart glass usually pays back slowly — it is bought for privacy and convenience, not pure returns.
Your smart glass
800–1800 typical
cost you no longer spend
from solar / glare control
what convenience is worth to you
Premium is the extra cost per sq ft over normal glazing — electricity tariff is baked into the cooling saving you enter. Indicative India 2026 numbers; always confirm with a real PDLC / electrochromic quote.
Simple payback
0.0years
Net extra spend ₹33,000 · saves ₹12,000/yr
Extra upfront cost
₹33,000
premium − avoided blinds
Annual saving
₹12,000
cooling + comfort
15-year net
₹1,47,000
in your favour
15-year ROI
445%
Cumulative saving vs upfront
Unusually fast payback for smart glass — the avoided-blinds offset is doing a lot of work here.
Decide where smart glass is worth it
DesignAI maps which windows actually benefit from switchable glass — by orientation, glare, privacy need and budget.
Related Guides — Deep-dive reading
Cost of Smart Windows in India (2026): Switchable Glass, Honestly Priced
What PDLC switchable glass, retrofit smart film and electrochromic windows really cost installed in an Indian home — glass plus the controller and wiring nobody quotes — and when a blind beats them.
Windows & GlazingWindow Maintenance Cost in India (2026): The Lifetime Upkeep Bill by Material
What it really costs to keep uPVC, aluminium, wood, steel and smart windows working — annual and 20-year upkeep, compared.
Windows & GlazingEnergy-Efficient Glass Guide (India): Cut Your Cooling Bill at the Window
How double glazing, Low-E coatings, argon, low SHGC and low U-value combine to slash the AC load
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