Example of our glass services

Toughened Glass
There are two types of “Toughened” glass; “heat-treated” and “chemically treated”. There are two further types of “heat-treated” glass, “heat-strengthened”, and “fully-tempered”. Fully-tempered heats the glass to above its annealing point, and then rapidly cools the glass. This makes it approximately four to six times tougher than standard float glass, enabling it to qualify as a safety glass that conforms to BS 6206 Class A.

Heat-strengthened follows a similar process, but is only twice as tough, and does not qualify as a safety glass. Chemical toughening involves running the glass through a bath of molten potassium nitrate, which exchanges the smaller sodium ions in the glass, with the bigger potassium ions in the molten bath.

The advantages of this are two-fold; the glass is tougher than when heat treated, and this approach can be applied to glass of complex shapes and sizes, making it suitable not just for glass sheets, but also for glass ornaments, and glass of unusual sizes.

Letchworth glazing company 24/7

At Express Letchworth glaziers we specialise in all types of glass services including double glazing repairs, glass replacement, window repair, window boarding and full glass installations.

Express Glaziers Letchworth pride ourselves as being one of the areas premier 24 hour emergency glazier companies. Glass can often be a target for anti social behaviour and as such can expose a property to further crime. When a problem occurs that requires an immediate response we offer complete glass solutions including boarding and repair throughout Letchworth 24 hours a day, 365 days a year.

Highly skilled Letchworth glaziers are on standby with fully equipped vans containing all the necessary equipment to carry out any glazing service. With an Express Letchworth glazier you know your in safe hands. Ninety per cent of our glazing work stems from word of mouth. This is due to our policy of putting customer satisfaction as well as safety, above all else.

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