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Glass Window Replacementby Doxa Glass Merchants

Shatterproof glass

Whether you are building, upgrading or replacing a broken pane, the glass you choose makes a difference long after the fitter has gone home. Laminated shatterproof glass is two layers of glass bonded to a tough interlayer. It looks just like ordinary glass, but it quietens rooms, can keep them cooler and, when it is struck, it holds together instead of falling apart.

GlassPVB interlayerGlass
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Same-day on the glass we carry: 4mm float and 6.38mm laminated shatterproof. Other glass we source fast, and we can cover the opening in the meantime.

Quieter rooms

The interlayer in laminated glass is usually PVB (polyvinyl butyral), a clear, slightly flexible plastic. As well as holding the glass together, it dampens sound as it passes through the pane. That is why laminated glass is used in places where noise matters, such as airports, recording studios and schools.

At home, the difference shows up in the bedroom that faces a busy road, the study under a flight path or the lounge beside a highway. You will not get total silence, but the constant hum of traffic becomes a lot easier to live with.

Cooler rooms

Laminated shatterproof glass is available tinted. Tinted laminated glass cuts glare and reduces the heat that comes through the glass, which counts for a lot under the Highveld sun. North- and west-facing rooms, where the afternoon sun turns a lounge into an oven, benefit most. You still get the view, with less squinting.

Safer for the family

Not every broken pane is a crime. A soccer ball through the lounge window, a pressure washer that gets too close to a door, or a small child who runs into a glass door they did not see: these are everyday ways that glass breaks. With laminated glass, the interlayer holds the broken pieces together, so there is far less chance of large, sharp shards falling out of the frame and onto someone.

Harder to break in

Housebreaking is still the most common crime South African households face. Stats SA estimates around 1.5 million break-ins in 2025/26, affecting roughly 1 in 19 homes, and more than half of them are never reported to the police. Most break-ins start with a window or a glass door. Shatterproof glass holds together when it is struck, which turns a quick smash-and-enter into slow, noisy work that most intruders give up on.

Source: Statistics South Africa, Governance, Public Safety and Justice Survey 2025/26, published 01/09/2026.

Performance ratings

Laminated glass comes in three performance variations:

  • Normal Strength (NS): the everyday choice for windows and doors.
  • High Penetration Resistant (HPR): built to resist being broken through.
  • High Impact (HI): built to take heavier impacts.

The right one depends on where the glass is going and what it needs to stand up to. Tell us about the opening and we will help you choose.

Peace of mind

Our mobile teams carry 6.38mm laminated shatterproof glass, the standard for large panes and most doors, so replacing a broken pane with laminated glass is often a same-day job. Other thicknesses, tints and ratings we source fast. Either way, you end up with glass that does more for your home than just keep the weather out.

How to send us photos

  1. 1. A close-up of the damage

    Get near enough that we can see the crack, the break and the edge of the frame.

  2. 2. The whole window or door

    Step back and take one of the full opening, so we can see its size and frame type.

Broken glass? Send us a photo.

A close-up of the damage and one shot of the whole window or door is all we need to get your quote moving.