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Patio Doors

Secure your property and add the finishing touches with the best windows, doors and roofline products available in North West England, perfect for standing up to the great British weather.

Patio Doors

Technically advanced

Designed in 2012 - the Liniar patio door is the most modern and up-to-date sliding patio system available on the market - built for today’s exacting challenges.

British made

Liniar profiles are extruded in Derbyshire at the HL Plastics manufacturing plant, which boasts the largest mixing plant in the UK. Continued investment in the factory and facilities keeps Liniar at the forefront of innovation.

Family friendly

Liniar’s thermally broken low threshold is just 35mm high, offering easy access for family living.The low threshold has an integral ramp outside and offers increased energy performance compared to standard aluminium thresholds.

Strong and secure

The Liniar patio door features the patented ModLokTM system, a combined reinforcement and multi-point locking system developed in conjunction with Yale. In addition, all external sliders feature anti-lift properties to combat would-be intruders.

Fully tested

Not only does Liniar carry out weather testing and security testing, it has invested in a robot for cyclic testing, giving customers peace of mind that their Liniar patio door will endure the rigours of daily living.

Unique ‘air glide’ system

Other patio doors operate on a two-wheel steel opening system.The Liniar patio features a unique four-wheel acetal system, providing stability, durability and a smooth, silent operation.

Self-cleaning track

One of the reasons other patio doors are hard to open is when dirt and mud fall onto the track.The Liniar patio features built-in brushes that sweep the track clean every time the door is opened.

Designed by experts

The Liniar range is designed, manufactured and supported by a team with over 500 years’ experience within the window industry.


With ultra-slim sculptured sightlines, no unsightly crash stops and a built-in decelerator, the Liniar patio door is one of the most attractive on the market.

Thermally efficient

The Liniar patio range can be double or triple glazed and can achieve a U-value of 1.3W/m2K with economical double glazed units.

Better for the environment

Liniar frames have always been 100% lead-free, well in advance of legislation. Furthermore, all elements of a Liniar window are fully and easily recyclable at the end of its life.

Beautiful colours

Liniar’s coloured foils give the appearance of woodgrain and won’t peel or scratch off - and the Liniar patio range matches perfectly with the rest of the Liniar range, offering an easy clean, low maintenance finish.


Liniar profiles come with a 10 year guarantee against cracking, warping or discolouration, and the ModLokTM locking machanism includes a 10 year mechanical warranty from Yale.

Patio Doors
Patio Doors
Patio Doors
Patio Doors
Patio Doors
Patio Doors
Patio Doors
Patio Doors