Tempered glass, sometimes called toughened or safety glass, is designed to be exceptionally strong. The glass is heated to an extremely high temperature and then cooled quickly using controlled air pressure. This process strengthens the surface and makes it several times tougher than standard glass.
When tempered glass breaks, it crumbles into small blunt pieces instead of sharp shards. This makes it a safer option for shopfronts, shower screens, doors, balustrades, and other areas where strength and safety are important. It is also a popular choice for double glazed units and sealed unit manufacturing because it can withstand temperature changes and pressure differences.
Once glass has been tempered, it cannot be cut or reshaped. All cutting and drilling must be completed before heat treatment, which is why it is important to work with experienced glass cutters and glaziers like our team at Clear Vision Glass.
Learn MoreNon-tempered glass, often known as annealed or standard glass, is made differently. Instead of being cooled rapidly, it is cooled slowly to relieve internal stresses. This method produces a smooth, clear surface that is easy to cut and shape.
Although it is not as strong as tempered glass, non-tempered glass remains a versatile and affordable choice for many applications. It is ideal for mirrors cut to size, replacement greenhouse glass, interior windows, and picture frames. Because it can be cut and modified easily, it is often used by local glass suppliers and glass merchants for bespoke residential and decorative work.
However, non-tempered glass breaks into large, sharp pieces, which makes it less suitable for areas where safety is a concern.
Get in Touch| Feature | Tempered Glass | Non-Tempered Glass |
|---|---|---|
| Strength | Up to five times stronger than regular glass | Standard strength |
| Safety | Breaks into small blunt fragments | Shatters into sharp shards |
| Heat Resistance | Withstands high temperatures | May crack under heat |
| Cost | Slightly higher due to processing | Lower and more flexible |
| Cutting and Drilling | Must be done before tempering | Easy to cut and modify |
| Typical Uses | Doors, shopfronts, balustrades, double glazing | Mirrors, greenhouses, internal windows |
Tempered glass provides strength and safety, while non-tempered glass offers flexibility and affordability.
Learn MoreTempered glass is ideal for shopfronts, office partitions, and other busy public spaces. It is also used in glass units and double glazed systems that require security and insulation.
Homeowners often choose non-tempered glass for decorative and interior features such as mirrors and greenhouse panels. For doors, bathrooms, or exterior windows, tempered glass is usually the safer and more durable option.
In our workshop, we frequently create mirrors cut to size, glass cut to size, and bespoke glass units for projects around Dorset and the South West. Whether you are a tradesperson, designer, or homeowner, we can supply exactly what you need.
If you are unsure which glass to choose, think about where it will be used. Tempered glass is best for areas that require strength, safety, or heat resistance. Non-tempered glass is ideal for smaller or decorative projects where affordability and flexibility are more important.
Still not sure which one is right for you? Our friendly team at Clear Vision Glass can talk you through the options and help you choose the perfect type of glass for your project.
We are more than just glass manufacturers. At Clear Vision Glass, we are a family-run business that values craftsmanship, reliability, and long-term relationships. From our base in Dorset, we supply customers across Southampton, Bristol, Frome, and surrounding regions.
Our team includes experienced glaziers, glass cutters, and sealed unit manufacturers who take pride in every job. Whether you need replacement greenhouse glass, double glazed units, or custom mirrors, we are here to help. You can count on us for professional service and expert results.
Contact us TodayIs tempered glass safer than normal glass?
Yes. Tempered glass is much stronger and breaks into small blunt pieces instead of sharp shards, making it safer for everyday use.
Can non-tempered glass be cut after installation?
It should not be cut after installation. Once it is in place, any attempt to cut or reshape it may cause cracks. Always have it sized correctly before fitting.
Can tempered glass be reshaped later?
No. Once the glass has been heat-treated, it cannot be modified. All cutting or drilling must happen first.
Is tempered glass more expensive?
It does cost a little more, but the added safety and durability make it a worthwhile investment.
Which glass should I use at home?
For doors, bathrooms, and exterior windows, tempered glass is best. Non-tempered glass works well for mirrors, picture frames, and interior features.
Both tempered and non-tempered glass have their advantages. Tempered glass provides superior strength and safety, while non-tempered glass is versatile and affordable.
At Clear Vision Glass, we help trade clients, homeowners, and businesses across Southampton, Frome, Bristol, and Dorset choose the best solution for their projects. Whether you need mirrors cut to size, replacement greenhouse glass, or bespoke glass units, our team is ready to help.
Get in touch with us today to speak to our friendly experts. We are here to provide high-quality glass products and professional advice to make your project a success.
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