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"A" Rated Windows
that won't cost the Earth

Energy Rated Windows

Your home is in safe hands when you choose High Performance 'A' Rated windows from Bryant and Cairns Windows & Conservatories. Not only will you benefit from real savings on your fuel bills, but you will also be helping reduce the impact on the World's natural resources.

Did you know that our homes account for a quarter of all CO2 emissions in the UK and windows can account for up to 30% of the total heat lost from a house? 'A' Rated windows can have a zero energy loss over a year cycle or even add energy back into the room via solar gain.

Many window companies lay claim to having 'A' Rated Windows when in fact all they offer is Low E glass or triple glazing, so it is important to check the credentials. The only way to check if a window is genuinely Energy Rated is to check the British Fenestration Ratings Council website BRFC. If it isn't registered........it isn't Energy Rated!


  • Highly Insulated PVCu frames provide a barrier to cut heat loss.
  • Heat from radiators is reflected back into the room,
    keeping more warmth inside your home
  • Even during winter, energy from the sun passes through
    the specialised glazing and has a warming effect on the room.


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What Is Double Glazing?

What Is Double Glazing?

Double-glazing is a window consisting of two panes of glass separated by a layer of trapped argon gas. The layer of argon gas has 67% of thermal conductivity of air, making it a poor conductor of heat, thus keeping warm air trapped inside your home and helping improve energy efficiency.

This extra pane of glass also acts as a secondary barrier to noise, helping keep your home nice and quiet, and strengthens the window to improve security.

What Do The Window Energy Ratings Mean?

What Do The Window Energy Ratings Mean?

When buying new windows, one of the most important things to look out for is the Windows Energy Rating (WER). They work in a similar way to the energy ratings on electrical goods.

The ratings go from A (very efficient) to G (incredibly inefficient). To comply with building regulations, all windows have to be at least C-rated.

The Windows Energy Rating is calculated using various values:

Thermal Transmittance (U value)

Solar factor (G value)

Air Leakage (L value)

U-value – how much heat can escape through the glass (thermal transmittance), measured in Kilowatt-hours, per square meter, per year.

For example: 2.5kWh/m2.K

This means that 2.5 kilowatts of energy is lost through every square metre of the window every year – that’s every square metre of window boiling the kettle!

G-value – how much energy gained through your windows from the Sun (solar factor). This is measured in kilowatt hours per metre, per year.

L-value – Air leakage through the window. We’re looking for as low as possible here and is measured in kilowatt hours per metre, per year.

We pride ourselves on only providing the best products, with an official WER ‘A’ Rating on all of our window products.

Does Double Glazing Reduce Your Utility Bills And Energy Usage?

Does Double Glazing Reduce Your Utility Bills And Energy Usage?

If you’re replacing older units you can be pretty confident it will save energy and therefore money on your bills. Did you know that our homes account for a quarter of all CO2 emissions in the UK and windows can account for up to 30% of the total heat lost from a house? ‘A’ Rated windows can have a zero energy loss over a year cycle or even add energy back into the room via solar gain. As an example, a detached house with 23.7m² of windows and electric heating upgrading from single glazed wooden windows to A-rated casement windows could save £325.26 a year.

Window Colours

Window Colours

Colour choice is important when considering replacing your windows, doors or conservatory extension products for your Edinburgh or Lothians property. Outdated or poorly chosen windows and doors can easily detract from even the most grand of Edinburgh homes, often spoiling the look and feel. These days, it's not just about picking the right style of window, door or conservatory extension. PVCu products are now readily available in a wide palette of colour finishes, ranging from the more traditional wood styles of Rosewood and Oak, right through to more contemporary colours such as Anthracite Grey. The introduction of colour windows really can transform not only the look of a home, but the feel of any living space. With 8 colours readily stocked and over 60 colours available, let Bryant and Cairns welcome you to a world of colour.

Effective Sound Reduction

Effective Sound Reduction

Does Double Glazing Keep Out Noise?

Yes, it does! While it won’t completely block out all noise, installing double glazing can significantly reduce the noise you hear from outside. The amount of noise a window blocks out can depend on factors including vent size, the age of the windows, etc.

Energy Efficient 'A' Rated Double Glazing

Not only does Energy Efficient 'A' Rated Double Glazing offer incredible levels of solar control, but it also offers considerable sound reduction properties. Upgrading your home, conservatory or house extension to Energy Efficient 'A' Rated Double Glazing will ensure that your home is the perfect place to relax or unwind, keeping the temperature inside just right and any unwanted noise away.

Bring in your sizes

We've made it simple for you. Download our easy to use survey form. Fill in your details using the fields provided and our handy visual guide for styles. You can either print if off and bring it to our showroom, or email it to sales@bryantandcairns.co.uk and we can have your quote ready for your arrival.

Note that Adobe Reader may be required to complete the form, you can download from here.

Download your survey form here
Request your free no obligation quote now

Energy Efficiency

Your home is in safe hands when you choose High Performance 'A' Rated windows from Bryant & Cairns.Not only will you benefit from real savings on your fuel bills, but you will also be helping reduce the impact on the World's natural resources.

Did you know that our homes account for a quarter of all CO2 emissions in the UK and windows can account for up to 30% of the total heat lost from a house? 'A' Rated windows can have a zero energy loss over a year cycle or even add energy back into the room via solar gain.

Many window companies lay claim to having 'A' Rated Windows when in fact all they offer is Low E glass or triple glazing, so it is important to check the credentials. The only way to check if a window is genuinely Energy Rated is to check the British Fenestration Ratings Council website BFRC If it isn't registered… it isn't Energy Rated!

  • Highly Insulated PVCu frames provide a barrier to cut heat loss.
  • Heat from radiators is reflected back into the room, keeping more warmth inside your home.
  • Even during winter, energy from the sun passes through the specialised glazing and has a warming effect on the room.

Our Guarantee

Your home is probably your pride and joy and you want to be certain that any investment you make in it, is the right choice. All our products have undergone rigourous testing to ensure optimum performance and technical excellence.

10 Year Guarantee
It goes without saying therefore that all of our products are guaranteed for a period of ten years from the date of installation. This comprehensive, fully transferable guarantee covers parts, products and workmanship and our Customer Services staff are just a phone call away should you ever need to use them. They will discuss your requirements with you and arrange for one of our experienced technicians to carry out any necessary work quickly and efficiently.

10 Year Security Guarantee
Bryant & Cairns has always been at the forefront of new window technology and it is an important part of ongoing product development. Not only are we confident about the quality of our products, but we are confident about the levels of security provided too. So much so that in the event of any of our products failing, and an intruder succeeds in entering your home, Bryant & Cairns will replace any damaged product absolutely free of charge.

Accreditations

BS7412 PVCu Windows and Doors (CMS3269WDS)
BS8529/PAS24 Composite Door Security (KM597995)
BS7412/PAS24 Enhanced PVCu Window and Door Security (CMS3269WDG)
Profiles extruded to BS EN12608 specs

Contact us today call 0131 440 2855