Walk home on an November evening and you’ll notice it. The lights are on, the curtains aren’t drawn yet, and you can see straight into your neighbours’ living rooms: the television, the kitchen table, someone on the stairs. Then it dawns on you that your own house looks exactly the same from the street.
Curtains and blinds are one answer. Obscure glass is another, and it has a big advantage: it keeps your home private all day and all night while still letting the light in.
Why you can see into homes at night
During the day, it’s brighter outside than inside, so a passer-by mostly sees reflections on your windows. After dark, that reverses. With the lights on indoors, your windows glow, and anyone outside can see in clearly while you see only your own reflection. It’s why a room that feels private at lunchtime can feel on show by six o’clock.
What is obscure glass?
Obscure glass is glass with a pattern or texture on its surface that scatters light as it passes through. Daylight still fills the room, but shapes and detail on the other side are blurred. From outside, you might see that a light is on, but not who’s in the room or what’s in it.
It’s sealed into a double or triple-glazed unit in the same way as clear glass, and patterned glass can be toughened or laminated for safety and security. The window buying guide explains the other types of glass that can go into a sealed unit.
What do obscure glass privacy levels mean?
Obscure glass patterns are graded on a scale from 1 to 5, where 1 gives the least obscuration and 5 the most. The scale is used by Pilkington, one of the best-known glass manufacturers, and it’s the standard way to compare patterns. Some familiar examples:
- Level 2, Minster: a light, decorative pattern that softens the view.
- Level 3, Cotswold: blurs the view while still feeling open, which suits rooms that are only partly overlooked.
- Level 4, Stippolyte: a popular choice for front doors and porches, where you want outlines hidden from the path.
- Level 5, Satin: a smooth, frosted look with the most privacy, often chosen for bathrooms.
The level is a guide rather than a guarantee. Pilkington notes that how much you can see through any pattern depends on the lighting and on how close the viewer, and whatever they’re looking at, are to the glass. That’s why it’s worth looking at real samples before you choose, ideally held up against a light.
Where obscure glass works best
Most homes only need obscure glass in a few places:
- Bathrooms and en suites, usually at level 4 or 5. Our guide to windows for bathrooms and kitchens covers these rooms in more detail.
- Front doors, sidelights and toplights, where the hall is on view from the street.
- Side windows that face straight onto a neighbour’s house.
- Landings and stairwells, where light matters but the view doesn’t.
You don’t have to obscure a whole window. A common approach is obscure glass in the lower pane or bottom sash, where people are most visible, with clear glass above to keep the view of the sky. In a front-facing living room, that can give you privacy without losing the room’s brightness.
Privacy glass for front doors
The glass in and around a front door is often the most exposed in the house, because the path leads straight to it. It’s also where privacy glass can do the most for how the door looks.
Fairco’s Composite doors are triple glazed as standard, and their decorative glass designs can be backed with obscure glass. The standard backing range includes six patterns: Minster, Cotswold, Stippolyte, Satin, Flemish and Contour. There are also sandblasted designs, such as a fully sandblasted panel with a slim clear border, and matching options for sidelights and toplights so the whole entrance works together. Laminated glass can be added for extra security.
You can try different glass designs on Fairco’s door builder, and the door buying guide covers the rest of the choices, from materials to locks.
Does obscure glass affect warmth or safety?
In a window, obscure glass doesn’t change how well the unit insulates. According to Pilkington, the performance of its patterned glass depends on the glass thickness, not the pattern, and it works in double and triple glazing just like clear glass. Obscure glass can also be toughened or laminated, so it can be used in doors and low-level windows where building regulations call for safety glass.
There’s a security benefit too. Passers-by can’t see what’s in your hall or living room, from a handbag on the stairs to the car keys on the table. For more ways to keep your home secure through the darker months, see quick tips for home security.
See the difference for yourself
Privacy glass is much easier to choose in person than from a photo. At the Santry and Deansgrange showrooms, you can compare patterns side by side and see how much each one hides. Or book a free consultation, and a Fairco surveyor will come to your home, look at which windows and doors are overlooked, and suggest the right glass for each one.
