Energy efficient 'A' Rated Windows

A high-quality PVCu frame will help to drastically lower heating bills and increase the overall value of your home. We work alongside Liniar to deliver a truly groundbreaking PVCu profile. Each individual frame is supplied with a ten-year guarantee.


Minimise waste on a property

Research has proven that poor quality PVCu and ill-fitted products are responsible for up to 20% of a home’s total waste. Our Liniar profiles have been intelligently designed to minimise this.

100% Recyclable

Our PVCu windows hold fantastic energy saving values, without the use of harmful materials such as lead and steel. This makes our PVCu frames kinder to the environment, as well as being 100% recyclable.

Tough wearing

As a material, PVCu is an incredibly energy efficient, exceptionally workable and tough! Our patented design comes complete with glazing flippers and thermal dams to help minimise cold air ingress and prevent water leaking through.

Multi Chambered

The intelligent frame is constructed from a series of size optimised chambers. These chambers trap pockets of warm air, creating a thermal barrier within the frame. This prevents the cold air from transferring into the property.

Why Choose TruFrame for your Liniar Windows?

As an energy efficient manufacturer, TruFrame are conscious of providing products that are not only energy efficient but are also kind to the environment.

Key Features

If you would like to find out further information about the energy efficiency of our PVCu profile, feel free to contact our in-house team of PVCu experts at any time. We’re here to help you choose the perfect profile for your project. Below are key features of our energy efficient products:

A+14 WER

The Liniar window system is capable of achieving a WER (Window Energy Rating) of A+14 using a double glazed sealed unit. We are not aware of another window profile system that can match this extraordinary level of energy efficiency.

100% Lead Free

Better for the environment, Liniar frames have always been made from completely lead free materials well in advance of legislation. Moreover, all elements of the Liniar profile are 100% recyclable.

Our Commitment to Recycling

Our PVCu windows are extremely robust and do not need expensive steel reinforcement. They are therefore 100% recyclable making them a truly environmentally friendly product.

40mm Glazing Bead

Specifically designed to accommodate a 40mm triple glazed unit.

More Thermally Efficient

The revolutionary Liniar window system uses the very latest in PVCu profile technology. Its multiple size-optimised chambers are specially designed to lock in the heat and break up mini convection currents.

Superior Gaskets

Our patented double-action gaskets stop gaps from forming thereby preventing heat loss. Memory retentive properties maintain consistently tight weather seals throughout the product lifecycle.

Trojan ‘Mega Egress’ Hinge.

Our 'Mega Egress' hinges, supplied by Trojan Hardware, are much larger and stronger than standard hinges. You can find out more here.

Superior U-Values

Utilising a 40mm sealed unit, you can achieve WER as high as A+25 and U-values as low as 0.9W/(m²-K).

Hinges Designed for Triple Glazing

A triple glazed sealed unit is 50% heavier than a double glazed unit. Whilst our standard hinges are capable of carrying this additional weight, in the majority of circumstances, sometimes a more heavy-duty hinge is required. TruFrame offer the Trojan 'Mega Egress' Hinges as an optional upgrade for all our triple glazed products, providing a true 'fit and forget' level of reliability whilst offering total peace of mind for homeowners.

Incredible U-values

The popularity of triple glazing is ever increasing creating new and profitable opportunities. With its new 40mm glazing bead, Liniar profile can achieve U-values as low as 0.9 W/(m²-K) with triple glazing. Double glazing: WER as high as A+14. U-value as low as 1.3 W/(m²-K) Triple glazing: WER as high as A+25. U-value as low as 0.9 W/(m²-K).


Triple Glazing

Most UK window systems are not designed for triple glazing. Consequently, installers are forced to fit much thicker 36mm or 40mm triple glazed unit into a frame designed to take a 28mm unit!

The result is that fitters struggle to bead windows, with the units being forced under such pressure they fail, with expensive service calls virtually guaranteed.

Not with TruFrame! The Liniar system has a triple glazing bead that is specifically designed to allow 40mm units to be easily accommodated. It is simple and straightforward to use and eliminates costly service calls!