Liniar Casement Window Image

Liniar uPVC Double & Triple Glazing Windows

Introducing the Liniar uPVC range of Slim Designed Windows.

Liniar’s range stands out from other uPVC systems on the market. Designed from the ground up, it leverages the latest advancements in window engineering technology.

  • By merging cutting-edge design and engineering with the flexibility to customize each home’s appearance and reduce energy costs, Liniar’s fenestration and garden products redefine what’s possible.
  • Liniar’s multi-chambered uPVC window are crafted with the technology, featuring symmetrical chambers designed to trap cold air.
  • The internal webs and spacing of these chambers are meticulously optimized using Therm software to deliver outstanding thermal performance. With a wide range of window systems available, Liniar windows boast some of the highest energy ratings in the UK.
  • Safety is paramount for Liniar. The company meticulously designs and tests its products to ensure they meet exact specifications before providing them to fabricators.

This process includes using specific components that were tested and accredited for safety and security.


Casement Window
Casement Windows

70mm Casement Window

Combining a classic uPVC design with modern innovation, casement windows remain a timeless and popular choice for home improvements. Liniar has developed an industry-leading, energy-efficient profile featuring slim sightlines, seamlessly updating the traditional casement window for the 21st century. The 70mm profiles boast excellent thermal efficiency, incorporating the latest multi-chambered profile technology. Their slim sightlines are designed to maximize natural light.

Flush Sash Windows

70mm Flush Sash Window

Inspired by traditional timber joinery, the design of flush sash windows allows the sash to sit perfectly flush within the frame. These windows are perfect for homeowners seeking to add a touch of traditional charm to their homes.

Sleek and flush with no visible uPVC overlap, Liniar’s 70mm flush sash windows provide the thermal efficiency of uPVC while maintaining the elegant look of timber.

Flush Sash Window
French Windows
French Windows

Infusing your home with continental charm, Liniar French windows provide a versatile, wide opening. They are perfect for use as a fire escape on upper floors or for enhancing ventilation throughout your home.

With both sashes opening outward from the center, Liniar French windows create a fully open aperture for unobstructed views. This design not only offers uninterrupted vistas but also allows both panes to open simultaneously without a central bar, making them suitable as a fire escape.

Bow & Bay Windows

Bow and bay windows, available in curved, angular, or rectangular designs, can enhance the natural light in your home. They can be crafted from a variety of Liniar’s uPVC window styles.

Bow or bay windows can add character and extra space to your home. By increasing natural light and creating a focal point in any room, Liniar’s bay or bow windows enhance both the interior and exterior of your home, providing instant curb appeal.

Aluminium Bow & Bay Window Image
Tilt & Turn Image
Tilt & Turn Window

Liniar’s 70mm tilt and turn window style offers the perfect balance of ventilation and security. This design allows fresh air to flow into your home while enabling easy cleaning of the exterior from the inside.

The original Liniar 70mm uPVC tilt and turn windows offer exceptional versatility. Homeowners can fully open them from the side, making them ideal for fire escapes, or tilt the pane for controlled ventilation by simply adjusting the handle position.


Double Glazed Windows

The Eco Energy Range uses the 70mm profile which is thermally efficient with a U-Value of 1.3W/m2k  and with its 6 multi-chambered frame utilises the latest in profile technology, while slim sightlines allow maximum natural light. 

Fitted with a high security, multi-point locking system as standard.

Glazing is 28mm as standard but other options are available, and with Liniar's patented co-extruded bubble gasket included in each uPVC profile, or frame, the highest energy ratings are achievable. 

Comes in a wide choice of styles and designs with a Sculptured or Chamfered look and with over 30 Colours to choose from.

View Colours
Liniar 70mm Profile
Liniar 70mm Profile Triple Glazed
Triple Glazed Windows

The Eco Energy Plus has an impressive Thermal Transmittance (U-Value) of just 1.0 W/m2k and has an energy rating of A++

A triple glazed window has three panes of glass to protect
your property, providing an extra barrier compared with two panes within a double glazed sealed unit.

The eco energy plus window system uses it’s 6 multiple chambers to lock in the heat, and high performing bubble gasket seals to ensure there are no gaps for heat to escape.

The system is fitted with a 36mm thick triple glazed sealed unit providing beneficial insulation, sound proofing and security.

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Multi - Chambered Frames

With rising energy bills, increasing environmental concerns, and ever-stricter building regulations, selecting a window system with high Windows Energy Ratings (WER) is a smart choice. 

Liniar’s lead-free, multi-chambered profile, patented co-extruded bubble gasket, glazing flipper, and thermal dam ensure top energy efficiency. You don’t need costly triple glazing to achieve the highest energy ratings—Liniar window systems easily attain a WER of A++ and U-values as low as 1.2 W/m²K with affordable double glazing.

Liniar Energy Effeciant Profile

Get a Handle on Your Options

Bright Bronze Espag Window HandleChrome Espag Window HandleGold Espag Window HandleSatin Espag Window Handle

As well as choosing your New Window Design and Colour you may also need to consider the handle option, to compliment your window, handles now come in a variety of styles and colours. The standard design is an called Espag a French Term abbreviated from the word Espagnolette. 

Colour Options are: White, Black, Gold, Chrome, Satin, Bronze, Graphite, Grey and Antique Black. Another style is called Monkey Tail available in Black, Graphite, Chrome & Gold

Obscure Glass

Obscure glass, also known as privacy glass, is designed to reduce transparency, making it difficult to see through while still allowing light to pass through.

This type of glass is often used in areas where privacy is important, such as bathrooms, bedrooms, and office partitions. Obscure glass can be a stylish and functional addition to any space where you want to balance light and privacy. 

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Cotswold Privacy Level 5

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