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100% Lead-Free
Our windows are 100% lead free. The dangers of lead are well known and the Double Glazing Network is extremely proud to supply one of the few window systems to offer an entirely lead free range of products (ahead of UK and EU legislation).

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

Reduce your Carbon Footprint
Having uPVC windows installed throughout your property will reduce the amount of energy you use and can lower your CO2 emissions by approximately 2/3 of a tonne (680kg) each year.

Gain Free Solar Heat
Our energy efficient windows have a dual functionality that allows you to gain free solar energy from our greatest natural resource; the sun.

The tight weatherseals of the windows prevent cold wind and rain from entering your property whilst the glass allows natural free energy from the sun to enter and heat your home.

The glass of the windows has a transparent metallic coating that reflects heat back inside, retaining warmth and reducing the amount of energy needed to heat your home. Put simply, saving energy can save you money!

Cheaper Heating Bills
Our windows are capable of achieving an A+14 energy rating. This means your windows would retain an additional 12 kWh per m² each year over a standard A+0 rated window.

Compared with C rated windows you would save enough energy per year to run a full size A++ fridge freezer constantly and do a 2kg load of washing every other day for a year!

(Based on a property with 10 windows, each 1m². All assumptions provided by information available from www.carbonfootprint.com and www.energysavingtrust.org.uk).

British Fenestration Rating Council (BFRC)
In 2004 Window Energy Ratings (WER) were introduced by the BFRC (British Fenestration Rating Council) in order to simplify the method of comparing the energy efficiency of windows.

The energy rating of the window, described as a letter from A (best) to G (worst), is determined by the amount of energy the product will either lose or supply to the property over the course of a year. The BFRC runs the Window Energy Ratings (WER) scheme. We are proud to say that our energy efficient uPVC windows are all BFRC approved.

The WER system uses a rainbow coloured scale to show the energy efficiency a window provides. Our windows are capable of achieving an A+14 rating, the highest level of energy efficiency.

Yes, you can feel secure with a 10 year manufacturer’s guarantee covering all Liniar products.

Liniar 10 Year Product Guarantee
Liniar products are manufactured using revolutionary technology from approved suppliers and are guaranteed not to warp, split or discolour for 10 years from the date of installation.

This guarantee is issued in association with our raw material suppliers and based on proven technology for UV stabilised products.

10 Year Yale Mechanical Guarantee
All Liniar windows come supplied and fitted with the Yale Shootbolt locking system as standard. All Liniar doors also come supplied and fitted with Yale high-security locks as standard.

Also, every Yale Shootbolt window locking system is guaranteed against mechanical failure for 10 years after installation. You will also receive up to £1,000 towards home content insurance in the unlikely event of a break in.

Are you accredited?
Yes. The Double Glazing Network is committed to providing consumers with the very best quality uPVC double glazing. In order to achieve this, we have devoted time, effort and expense in obtaining all of the standards and accreditations the industry has to offer.

British Fenestration Rating Council (BFRC)
All products supplied by members of the Double Glazing Network are 100% British made by a BFRC approved manufacturer and licence holder. 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.

Operating in Accordance with the British Standards Institution (BSI)
Founded in 1901, the BSI group is a non-profit distributing company which helps organisations improve their quality and performance as well as helping them become more sustainable. The BSI provides independent third-party certification of management systems, best practice standards and product testing. Liniar products are continually audited by the BSI to ensure compliance with important British, European and International Standards.

Secured by Design
The ‘Secured by Design’ Licence is the official Police security initiative backed by the Home Office Crime Reduction Unit ensuring high-security standards for quality crime prevention products. We are proud to state that the Liniar product range has successfully achieved Secured by Design status.

Kitemark Accreditations
The Kitemark is a registered certification mark which is owned and awarded by the BSI. The Kitemark symbol is globally recognised as a symbol of trust, integrity and quality. When you see the Kitemark symbol you can be assured that vital safety and performance requirements have been met which is why Liniar uPVC double glazing products provide a visible confirmation of quality. The Liniar range of products holds Kitemark licences 587164, 587165 and 587166.

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The company pages on our site contain a selection of the latest reviews by customers. This ensures that you can see which installers live up to their expectations so that you can be confident in their superior installation services.

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