Window security
The strongest and safest you can find

Window security locks

The new Blade Lock

First Home Improvements introduces the Blade Lock. It is the strongest, safest and most secure lock on the market. The revolutionary new window lock developed and patented by Yale, has three times more contact between the sash and the frame than a standard window lock, making it so much stronger.

Watch the video below to see all the features and the benefits of the security lock:

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Locking mechanism

The Blade Lock has been designed with style and security in mind, developed and patented by Yale. It is the strongest, safest and most secure window lock on the market.


Blade Lock offers greater lock engagement for additional security whilst connecting along the full length of the window keeps. Unlike other window locks, Blade Lock’s aluminium channel uses the full depth of the eurogroove within the window sash, to enhance the strength of the window.

Improved security

The pinnacle of lock technology design with style and security in mind, 120mm of contact with frame – 3x more than standard window locks.


Tested to more than 30,000 cycles and up to 42 years of use, long lasting with a 12 year warranty. Rigorously tested to BS7950 and beyond.

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Window security

Security is the most important thing for our customers, which is why we offer best-in-class features to help keep your home safe.

Our windows come with features including an industry-leading Blade locking system, which has been tested to the equivalent of at least 30 years’ of heavy use. Not only is it designed to improve security and performance but it also takes pressure away from the hinges, ensuring a longer life for your windows. The tight seal guarantees superb weather protection too.

They have been tested to the BS7950 standard, meaning they have demonstrated effectiveness in preventing or reducing crime.

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