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Help To Reduce Energy Bills and Heat Loss

Why Are Energy-Efficient Windows So Important?

You’ll probably know that the amount of energy we waste in our homes is directly linked to climate change. And you’ll definitely know about the ever increasing cost of heating your home. But did you know that the glass in your windows can help your home

Be more energy-efficient? Your windows can have a big impact on the amount of energy you use, the comfort of your home and the cost of heating it – so if you’re thinking of replacing them, look no further than the Pilkington energiKare™ range.

So How Does Pilkington EnergiKare™ Work?

Pilkington energiKare™ is the name given to our range of double and triple glazing insulating glass units designed to improve the thermal efficiency of residential properties.

UK’s most recognised low-e glass or the Pilkington Optitherm™ range. Low-e glass helps to prevent heat escaping through the window

A Pilkington energiKare™ unit reduces the amount of heat lost through your windows and can also allow more heat energy from the sun, referred to as solar-gain, through the glass.

The outer pane of glass comprises: Pilkington Optiwhite™ our low-iron, extra clear glass or Pilkington Optifloat™ Clear, our standard float glass. Both types of glass allow more ‘free’ heat from the sun to pass through the glass.

Pilkington energiKare™ double glazing contains an optimised combination of glass, spacer bar and gas fill to achieve the best Window Energy Rating (WER) or U-value for each window application;

Filling the double glazed unit with argon gas or using a warm edge spacer
bar can help to further reduce the amount of heat loss. Improving the thermal performance of your window will make your home feel warmer.

The inner pane of glass comprises a product from either the Pilkington K Glass™ range;

The Benefits Of Pilkington EnergiKare™ Range

Improves the energy efficiency of your home

Can reduce the amount of energy you use, saving you money

Is more effective than single or basic double glazing

Pilkington energiKare™ is suitable for use in PVC-U, timber and metal windows

Manufactured in the UK to the highest British and European quality standards.

The Range

As well as the standard Pilkington energiKare™ Insulating Glass Units (IGUs), the Pilkington energiKare™ range comprises of:

Pilkington energiKare™ Advantage – triple glazing performance in a double glazed unit

Pilkington energiKare™ Triple –high performance triple glazing, for superior thermal efficiency.

Doesn’t All Double Glazing Save Energy?

Of course all double glazing offers a degree of energy efficiency. And it’s still much better than single glazing. However, Pilkington energiKare™ is more than twice as energy efficient as older uncoated double glazing. The Window Energy Rating (WER) scheme has been put in place to help make choosing windows easier.

Understanding Window Energy Rating System

This system is similar to the one used for domestic appliances and light bulbs, and lets you compare the energy efficiency of the complete window and frame with competing products. Windows using Pilkington energiKare™ units are A++ to C rated, dependent upon frame, as they significantly reduce the amount of energy
you use to heat your home.

Doesn’t All Double Glazing Save Energy?

Providing your existing frames are still in good condition, you can simply replace the glazing to help reduce your bills and improve the energy efficiency of your home.

Windows can achieve the highest rating of A++, depending on which product from the Pilkington K Glass™ or Pilkington Optitherm™ range is specified.

By Using Pilkington EnergiKare™ In Your Windows You Will:

Improve the energy-efficiency of your home

Save money on your heating bills

Become more environmentally friendly!

Choose Pilkington EnergiKare™ and Save More Than The Environment

Because Pilkington energiKare™ can help most windows gain a minimum C rating on the Window Energy Rating scheme, you can be assured that you’re doing your bit to reduce your carbon footprint.

What’s more, any home that is for sale now has to have an environmental rating and is sold with an Energy Performance Certificate. Using Pilkington energiKare™ will contribute to this and could be a positive factor in selling your home.

To see just how much money you can save by replacing or upgrading your windows

With Pilkington EnergiKare™ Less Heat Escapes

As well achieving high levels of thermal insulation, Pilkington energiKare™ can
also help windows to meet the requirements of the building regulations for energy efficiency in the UK (e.g. Part L 2016 in England).

These images show you just how effective Pilkington energiKare™ is at reducing heat loss through your windows. The upstairs windows are fitted with Pilkington energiKare™,and the blue colour shows they’re losing very little heat. Compare that with the red colour of the original single glazed window downstairs, you can see the difference.

So choose a product from the Pilkington energiKare™ range today. Contact us today on: (074) 91 26295

CE marking confirms that a product complies with its relevant harmonised
European Norm. The CE marking label for each product, including declared values,can be found at

Donegal Glass Products
24 Hours Repairs
Serves Nationwide - Covering Dublin Weekly


Letterkenny Glass based in Donegal Ireland was founded in 1988 when Jim Rodgers, an already established Building Contractor, decided to make a difference in the local glass market.

Letterkenny Glass trades throughout the island of Ireland.

Our Showroom Address

Letterkenny Glass,
Dromore Lower,

Contact Details

Tel: (074) 91 26295
Fax: (074) 91 26965



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Our Showroom is now open to the public and we continue to work as normal under covid guidelines

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