Casement Windows

About Casement Windows


British Security Window Solutions manufacture Liniar UPVC Windows.
Liniar casements window offer total versatility and remain the most popular choice for homes all over the UK today.

Our window system has been designed and built with the installer in mind – so its windows, doors and roofs are simple to fit, saving you precious time on the job. The team is made up of industry experts with more than 500 years of experience between them. They know the challenges you face and find ways to address them.

The latest multi-chambered technology delivers up to an A++ Windows Energy Rating, the highest achievable – keeping your customers’ fuel bills down. They are also better for the environment and better for family living – your customers will love knowing their windows are free from lead.

All Liniar products undergo extensive testing and checks, achieving PAS24:2012 Enhanced Security Performance and cyclic tested for durability. With a state-of-the-art factory in the heart of the UK, you can rest assured the Liniar team are on hand to help with any installation queries you may have.

The patented double-action bubble gasket means a continuous seal around the windows, even in the corners – so no call-backs to deal with draughts. With a range of thresholds, including Liniar’s patented low-access threshold, together with a choice of security options, your customers will be spoilt for choice.

Matching products include windows, patio, bi-fold, French, residential and composite doors, as well as conservatory roofs, giving installations a seamlessly stunning finish. Furthermore, all Liniar profiles are guaranteed for 10 years against discolouration, splitting, warping or cracking – so they stay looking beautiful for longer.

If you’ve installed uPVC windows with protective tape that’s printed with a green leaf, stating ‘lead-free’, you can be assured you’ve purchased Liniar.