Creating truly unbreakable glass windows is a challenging task, but there are several options available that can significantly enhance the strength and durability of glass. Keep in mind that the term “unbreakable” may be a bit of a misnomer, as any material has its limits, but these options make the glass more resistant to breakage or damage.

Toronto home owners should consider to secure the windows with unbreakable glass options

Tempered Glass

loe tempered glass

Tempered glass is processed through a controlled thermal treatment that increases its strength compared to regular glass. When tempered glass breaks, it shatters into small, relatively harmless fragments rather than sharp shards.

Security Window Films

window security film installation

Clear window films designed for security purposes can be applied to existing glass surfaces. These films can hold shattered glass together upon impact, providing a level of protection.

Laminated Glass

Laminated glass consists of multiple layers of glass with an interlayer of polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) between them. When laminated glass breaks, the interlayer holds the broken pieces together, reducing the risk of injury. Laminated glass is often used in car windshields for its safety features.

Bullet-Resistant Glass

Bullet-resistant or bulletproof glass is designed to withstand gunfire. It typically consists of layers of laminated glass and polycarbonate. While not completely unbreakable, it provides a high level of protection against various ballistic threats.

Polycarbonate Windows

Polycarbonate is a type of transparent thermoplastic that is much more impact-resistant than glass. Windows made of polycarbonate are commonly used in security applications. They are lightweight and offer excellent resistance to shattering.

Smart Glass

Smart glass, also known as switchable glass or electrochromic glass, can change its transparency in response to an electrical charge. While not designed for strength, it can enhance privacy and reduce visibility when needed.

Choose only licenced installers with good reputation and windows manufacturer warranties

security film

While no material is truly “unbreakable,” there are glass films designed to enhance the strength and safety of glass surfaces. These films are often referred to as safety or security films and are intended to minimize the risk of injury and damage in the event of glass breakage.

When considering options for unbreakable glass windows, it’s essential to assess the specific requirements of the application (e.g., security, impact resistance, ballistic protection) and consult with experts in glass technology to determine the most suitable solution. Keep in mind that while these technologies enhance glass strength, no material is entirely impervious to damage.


We recommend seeking the advice of a professional specializing in patio doors or visiting a Welda Windows & Doors showroom to explore the various options available for sliding patio doors or French doors.

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