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What it costs
| Where | Published installed cost |
|---|---|
| Small bathroom window, smart glass | $200 to $600 (HomeGuide) [1] |
| Smart glass shower door | $1,300 to $2,700 (HomeGuide) [1]; about $1,800 (HomeAdvisor) [2] |
| Regular glass shower door, for comparison | about $940 (HomeAdvisor) [2] |
| Bathroom or shower enclosure with smart film, Los Angeles | $3,000 to $7,000 [3] |
The LA figure includes film, wiring, controls, and labor in a high-cost market [3]. Quotes elsewhere may be lower.
Smart film or smart glass in a bathroom?
HomeGuide warns that film in bathrooms and showers has a limited lifespan because of humidity, frequent use, and UV [1]. Film can also peel from moisture and temperature changes [1]. For a shower door or glass that gets wet, laminated smart glass is the safer choice. HomeGuide puts its lifespan at 20 to 30 years, against 10 to 20 for film [1].
Smart film can still work on a bathroom window that stays dry. It costs less and goes onto the glass you already have. Ask the installer which product they'd use for your exact spot and what the warranty says about moisture.
Compared with frosted glass and blinds
- Frosted or obscure glass. Always private, no power needed, and much cheaper. But you never get a clear view.
- Blinds or smart blinds. HomeAdvisor puts smart blinds or curtains at about $500 per window on average [2]. They block light when closed.
- Smart privacy glass. Switches between clear and frosted. In the frosted state, most daylight still comes through [4][5].
What happens if the power goes out
With standard PDLC film or glass, the glass turns frosted when the power is off [5]. In a bathroom, that means you keep your privacy in an outage. One maker also sells a "reverse" film that's clear when off [5]. For a bathroom, make sure you get the standard kind.
Power and wiring
PDLC film runs from a small transformer at 48 to 65 volts AC [5]. If there's no outlet near the window, new wiring can add $500 to $2,000 or more [3]. HomeGuide recommends a qualified electrician for wiring, and up to code [1]. Ask your installer who handles the wiring and whether your city needs a permit for it.
FAQ
Does smart film stay private at night?
Yes, when it's switched to frosted. The frosted state scatters light so people can't see through, day or night [5]. When the film is clear, it works like regular glass, so switch it off at night if the lights are on inside.
Is smart glass safe in a shower?
Look for smart glass built on safety glass. HomeGuide says high-quality smart glass made with laminated and tempered glass can last 20 to 30 years [1]. Ask the installer to confirm the panel is rated for showers and wet areas.
See all smart film costs or request bathroom privacy glass quotes.
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