Pilkington energiKare™ FAQs

Below are some Frequently Asked Questions about Pilkington energiKare™ energy-efficient glazing.

Find out more about the Pilkington energiKare™ range.

1 What is Pilkington energiKare™?

It is double (or triple) glazing designed for use in highly energy-efficient windows which incorporates specific glass products from the Pilkington range. It may be made either by our IGU partners or by other companies who have official European standard approval.

Pilkington energiKare™ can be used in windows of any frame material and further assessed to achieve a Window Energy Rating up to band A. This uses a scale of energy efficiency similar to that with which other domestic items are rated. Alternatively it can achieve a U-value of 1.6 or less with both these options qualifying to meet the current Building Regulations for energy efficiency. 

To achieve WER band A please see Pilkington energiKare™ Advantage. Alternatively, to meet the requirement for U-value, a product from our Pilkington Optitherm™ range would be used as the inner pane.

Window companies around the country have joined our Pilkington energiKare™ installer scheme offering our range of products and are listed on our supplier finder. 


What is different about Pilkington Optiwhite™ glass?

Purer raw materials are used to manufacture Pilkington Optiwhite™ resulting in a clearer, more colour neutral glass often known as “low iron”. When used in the front pane of Pilkington energiKare™ double glazing it allows through higher levels of light and solar heat enabling your home to benefit from free heat from the sun as well as permitting large areas of glazing.

This glass is also used as the substrate for a number of our coated products with the OW notation such as Pilkington K Glass™ OW, our well known coating on low iron glass offering the same benefits of slightly higher light and heat transmission. 


Why should I be interested in Pilkington energiKare™?

There has been widespread news coverage about the escalating costs of energy for the home as well as concern about global warming and damage to our environment so saving energy makes sense. Therefore, when replacing your windows it is a good idea to consider more energy efficient windows so that you can save money on fuel bills and do your bit for the environment.


Where can I buy windows containing Pilkington energiKare™?

Search for retail suppliers of Pilkington energiKare in our supplier finder. Simply enter your postcode or town and you can see both local and national suppliers. Note that these companies are registered with us and have met our requirements in terms of official approvals for IGU manfacture or window energy efficiency however we are not in a position to recommend or guarantee their standard of work.


How do I know that the windows containing Pilkington energiKare™ have been installed?

Every Pilkington energiKare™ double glazing unit is labelled during manufacture. These labels will be on the windows as they arrive at your home but will be removed on final cleaning. Also, you should be given an Installation Certificate stamped and dated by your installer. If you have any problems arising from the fitted windows these should be taken up with your window installer direct since your contract will be with them.


Does Pilkington energiKare™ comply with Building Regulations?

Yes. If Pilkington energiKare™ energy efficient glazing is installed in any frame type it should comply with Building Regulations for energy efficiency (Part L in England, Wales and Republic of Ireland, Part F in Northern Ireland and Section 6 in Scotland) since it helps to meet the requirement of a minimum Window Energy Rating band C or maximum U-value 1.6.

7 Is Pilkington energiKare™ applicable to aluminium and timber as well as uPVC framed windows?

Yes. The performance may differ for the various types and designs of frame as well as frame materials. The minimum performance requirement for Building Regulations is that the complete window achieves a Window Energy Rating of a minimum of band C or maximum U-value 1.6. However band A can be achieved in all frame types using Pilkington energiKare™ containing one of the products from the Pilkington K Glass™ range depending on type and lower U-values can be achieved by using more highly performing low-e combinations such as Pilkington energiKare™ Advantage.


What is the lifespan of Pilkington energiKare™?

It is the same as other double glazed units according to the guarantee offered by your window installer.

9 Can I combine Pilkington energiKare™ with tinted glass?

No, this is not appropriate. Tinted glass is designed to reduce the amount of heat from the sun which comes in and stop overheating of areas such as conservatories. Pilkington energiKare™ is specifically designed for windows and or North facing areas of homes which would benefit from more heat from the sun coming in.

10 Why is it important that the glazing in my windows is Pilkington energiKare™?

Pilkington energiKare™ is available only in our own glazing or from other companies who have entered into a partner agreement with us. This agreement means that they make and supply according to the specified design which meets the latest European Standards.


Is Pilkington energiKare™ suitable for use in conservatories?

It is ideal for North-facing conservatories which could be glazed with Pilkington energiKare™ for additional warmth. However, for South-facing conservatories and roof-glazing applications we would recommend the use of products which reject the sun’s heat in some way, i.e. one from our solar control range such as tinted glass, Pilkington ActivSunShade.

12 Just how much will my home energy bill be reduced through the installation of Pilkington energiKare™?

Over the typical lifetime of windows it is possible to save up to thousands of pounds as well as reduce the CO2 emissions by millions of tons. Take a look at our savings calculator to get an idea of how much you would save.


Is Pilkington UK therefore guaranteeing the quality of the windows I have installed?

No. The contract for installation of your windows is between you and your window company. Since we do not install windows ourselves, we are not in a position to audit the work of any installer who uses our glass or glazing. We recommend that in choosing your installer you take recommendations from other satisfied homeowners in your locality or use a company which is a member of the Glass & Glazing Federation hence covered by their insurance scheme (for more details visit www.ggf.org.uk) or alternatively a member of Network VEKA (www.inveka.co.uk).

14 What is Pilkington Spacia™?

It is unique slimline vacuum glazing which achieves U-value as low as 1.4 and has been installed in Japan by our parent company NSG Group for more the 15 years. Due to its slim profile it can be used as replacement glazing in traditional timber framed windows or historical windows where previously only highly inefficient single glazing could be used.

Find out more about Pilkington Spacia™