Sliding sash windows| Aluminium windows | Secondary Glazing
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Our promise of performance


Climax windows range offers a wide choice of styles, colours, and frame details either to enhance the appearance of your home or to match existing styles. And whichever one is right for you, it will incorporate the quality assurance of an independent ten year guarantee. Naturally, every Climax installation is designed to fully comply with the latest safety legislation and emergency escape regulations.

PVCu Windows


Energy conservation is always a prime concern and with rising costs, never more so than now. Climax windows are specially designed to provide maximum performance over a long life and are constructed using thick walled plastics with fully welded rigid frame joints, and 28mm double glazed panels. Further benefits include resistance to fading and yellowing over time, top quality multi-directional, multi point locks with adjustable hinge systems to provide maximum security. PVCu is renowned for its easy going, virtually maintenance free nature – and even cleaning the outside of the pane is simple thanks to our optional offset hinge design allowing you to reach through for access. And on the subject of cleaning, the latest technology means you can specify glass that can even clean itself! Ask us for more details.

The look of wood with PVCu performance?


No problem! Our latest wood effect windows are moulded and created to provide a choice of designs with the appearance of three different wood finishes– but without the hassle of regular maintenance or sticking windows almost impossible to move. Your Climax windows will always glide effortlessly open – and what is more, you can safely lock them in ventilation mode to help keep room air fresh.
Timber finish bay window Timber finish bay window with 'leaded' glazing bars
Cross sections of Deceuninck window frames 2800 Encore and 2500 Classic series Cross sections of Deceuninck window
frames. Encore 2800 and mouse-over for
Classic 2500
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We are registered with FENSA
Deceuninck logo links to the Deceuninck website