Toughened Glass

Glass Safety and Security – Tempered and Toughened Glass

Expertly fitted toughened glass by Sheerwater Glass

For many people, the rationale behind upgrading their windows and doors lies in the security and safety offered by the availability of different types of glass and additional locking systems.

The rate of domestic burglaries generally increases in tough economic times and properties with original single glazed windows and minimal security are often a soft target for criminals.

As the entry point to most homes and businesses, doors and windows represent the easiest opportunity for a potential intruder.  Secure double glazing, however, presents a serious challenge for a burglar.  The aluminium frame makes it impossible to ‘jemmy’ the window and criminals will think twice before attempting to break the double layer of impact-resistant glass.

Read the features and benefits of toughened glass below, or contact our team for help and advice on toughened glass. 


  • Tailored to your preferences
  • Superb quality, our toughened glass is strong and durable
  • Expertly fitted by Sheerwater Glass

Fensa Registered Company

FENSA is an acronym for the ‘Fenestration Self-Assessment Scheme’. Set up by the Glass and Glazing Federation, it allows double glazing companies to self-certify compliance with Building Regulations. There are several reasons why you should check for the FENSA logo when looking to have new windows and doors fitted in your home.

BSI Kitemark - Window Installation

Sheerwater Glass is one of only a handful of companies that has achieved the industry’s highest standard, BS 8213 for the survey and installation of windows and external door sets.

QA National Warranties

The insurance intermediary company QANW is responsible for protecting consumers through insurance policies. QANW has been in the business for over 25 years and has formed close associations with various building contractors and trade associations throughout the UK.

City & Guilds - Level 3 Qualified

The educational organisation City & Guilds are known for their vast levels of assessment, offering employees and workforces with the skills they require for many years. This seal of approval provided through their accreditation gives customers the confidence they require. Two of our employees, one in management and the other in our service department are qualified to City & Guilds level 3. This level of accreditation is highly sought after, with City & Guilds working with some of the leading brands of various sectors to offer the highest standard of training. The accreditation offered by City & Guilds is valued significantly, showcasing a business’s expertise, dedication and knowledge. In achieving this level of qualification, customers can feel assured that they are receiving the highest standard of work and customer service. City & Guilds and the City & Guilds logo are trademarks of the City and Guilds of London Institute and used under licence.

Checkatrade - Proud Members

Finding a tradesman is not always an easy task, especially when you’re unsure whether he or she is trustworthy. After all, you’ll be inviting this person into your private home, so you need make sure that they are reliable.

GQA Qualified

GQA Qualifications is an Awarding Organisation for specialist sectors and occupational roles. Qualifications cover the Glass, Construction, Coating and Print industries.

PASMA Tower Trained

Our team are fully trained in the assembling, dismantling, moving and inspecting mobile access towers and working at height.

BFRC Rated

Our products are BFRC rated, an independent verification of the energy efficiency of our windows and doors. BFRC rated energy efficient windows and energy efficient doors carry a ‘rainbow’ label.

  • Woking Expertise

    Expertly Fitted

    Our highly skilled team will arrive equipped with specialist equipment to measure, supply and fit your brand new toughened glass to the highest possible standard. We have over 40 years of experience in installing toughened glass in Woking and the surrounding areas, so you know you can rely on us.

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    Superb Quality

    Strong and durable; our toughened glass guarantees your home improvements will be safe, long-lasting and extremely low maintenance. By taking the time and care to source only the highest quality products and materials, we only install toughened glass we believe in. Rest assured, our 40 years of experience in installing toughened glass makes us well placed for installations of any size!

  • custom design

    Contemporary Style

    With no compromise on aesthetics or function, toughened glass can be tailored to your preferences. Our sleek, contemporary toughened glass can provide your home with instant glamour. Take control of your contemporary design and our dedicated team of glass experts will help you create a truly bespoke design to suit your home and budget.

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Toughened Glass | More Information

There are a dazzling range of different types of glasses, used according to their particular attributes but safety glass is now mandatory in most areas of the home, as well as public buildings. The glass used in double glazing is usually either toughened or laminated. Safety glass is, as you might expect, much harder to break and when does shatter, there are none of the dangerous shards and splinters you find with standard glass.

  • Laminated glass comprises one or more interlayers, sandwiched between two or more sheets of float glass. The interlayers are composed of a PVB (polyvinyl butyral) laminate, or cast resin. If the glass suffers an impact, it may eventually fracture but the broken fragments will remain bonded to the interlayer. Read more about Laminated Glass here
  • Toughened, or tempered, glass is four to five times stronger than ordinary float glass. It’s made by a process of exposure to high temperatures followed by rapid cooling, which increases its tensile strength. If it is broken, relatively harmless fragments, known as ‘dice’, are formed which are unlikely to cause injury. Read more about the production of Toughened Glass

Toughened Glass can be manufactured with

  • Bevelling
  • Polished edges all round
  • Dubbed corners
  • Radius corners
  • Holes Cut
  • Notches
  • Cut-outs
  • Sand blasting
  • Acid etching
  • frosting
  • Brilliant cutting

Options to consider if you’re looking to further enhance the security of your doors and windows:

  • Choose to buy a system that comes with a double glazed window locking system
  • For locking systems, choose either a espagnolette, or multi-point, locking system, or a deadlock shoot bolt
  • Choose windows fitted with an internal beading system so the glass cannot be removed from the outside
  • Look for the BS 7950 kite mark

Locking systems:

  • The espagnolette or multi-point locking system comprises bolts (normally 3 pairs) set into the window and located into locking points in the frame when the handle is turned. The bolts need to be mushroom headed so that they engage behind the locking point, enabling the window to resist being forced away from the frame.
  • The deadlock shoot bolts are set into the frame at both opening side corners. There is also a deadlock which secures the opening side of the window at the handle.

So now you have the ‘nuts and bolts’ of what to look for in your new windows, come and talk to us at Sheerwater about how we can help you improve the security of your property.  We have an unrivalled reputation for glazing in Surrey.

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