Aluminium Casement Windows

The clean style and light, modern material used in our aluminium casement windows lends a contemporary note to properties of any age. They're high performing and energy efficient, made from strong, polyester powder-coated frames for a long-lasting finish that won’t corrode. They can also be configured any way you choose, to best suit your home. With more than 200 colours – including dual colours – and a selection of decorative glass, fixtures and glazing options available, Anglian aluminium windows are truly bespoke.

Each aluminium casement window is individually made with your choice of colour, configuration and glass.

  • Low maintenance, sleek and modern
  • Powder-coated for extra durability
  • Choose from more than 200 colours
  • Energy efficient, and can help reduce your heating bills
  • Secured with shoot-bolt locks, key locking handles and toughened glass

Our stylish aluminium casement windows are guaranteed for 10 years, while sealed units are guaranteed for 15 years. They exceed building regulations, and come with a B energy-efficiency rating as standard.

As well as being secure and energy efficient, they're incredibly effective at noise reduction, and cutting down sounds from outside.

With more than 200 colours for you to choose from, we’re sure to have a shade that suits your home perfectly. You can even have different coloured frames and casements with our aluminium window range, as well as different colours inside and out.

We make it easy to find the cost and energy savings you’re looking for – one of our Anglian designers will visit you at home to give you expert advice based on your particular needs. They’ll also guide you through deciding the best configuration for each room, and which decorative bars and glass designs will make your windows unique.

Once you’ve decided what you want, our designer can give you an accurate quote. Your aluminium windows will always be made to your exact specifications, ensuring that they perfectly fit your home.

  • 10 year guarantee
  • Established in 1966
  • Made in Britain

Explore our range of frame and glass options

Frame options
Anthracite Grey aluminium casement window
All dual colours are white on inside

See how your aluminium casement windows could look by selecting the colour and handles of your choice

Outside View
Select frame colour:
Each window material offers a wide choice of colours for the outside of the frames. With our uPVC windows, you also have a dual colour option combining Woodgrain or Anthracite Grey on the outside with White Knight on the inside.
Single colour

Same colour on the inside and out

Dual colour

Different colours on the inside and out

explore handle & frame options
Here are some of the most popular frame configurations

Your designer will talk you through the vast range of options available to suit your needs

  • quad-split-middle
  • single
  • top-opener
  • triple-fire-escape
  • vertical-split
  • vertical-triple
  • Double top casement window configuration
Anthracite Grey aluminium casement window
Inside View
Select your handles

Anthracite Grey aluminium casement window Chrome handle option
Glass options

Your designer will help you select the type of glass that’s most suited to each room in your home to give you the best levels of energy-savings, security, noise reduction and privacy.

You can also give your windows the look you want by choosing from our plain, decorative or obscured glass and insert options.

Clear glass
Select glass type
We make every glass panel uniquely for your windows and offer you an exciting choice of clear, obscure and leaded glass, as well as decorative designs and bars. Your Anglian designer can help you choose the right glass for each window during your appointment.
Glazing Options
  • Double Glazing
Energy rating / performance options
These tell you how much energy a window loses or gains. They’re based on three factors – how much heat is retained or lost through the window, how much heat can be harvested from the sun and how much heat is lost through draughts. More about energy ratings
  • B

Aluminium alloy has been used to create quality windows for more than 20 years, and our double-glazed aluminium casement windows are energy-efficient, secure and durable. Because each window is tailor-made by our own craftspeople, you can pick every feature individually, including the size of the openings, the handles and plain, decorative or obscured glass. With more than 200 paint colours, including the option for different colours on the interior and exterior, you’ve scope to let your imagination run free.

Customer Reviews

Our Accreditations

Feefo accreditation
Awarded Feefo Trusted Merchant for customer satisfaction in 2015, 2016 & 2017
British Board of Agrement windows accreditation
The British Board of Agrement provides certification on the quality of our products.
Energy Saving Trust logo
Windows with a WER rating of A or above can be registered with the Energy Saving Trust.
Trustmark logo
TrustMark is a government endorsed not-for-profit organisation that operates a quality mark framework through more than 30 scheme operators who work in the repair, maintenance and improvement sector.
Glass and Glazing Federation logo
Anglian is a leading member of the Glass and Glazing Federation (GGF).
Made in Britain logo
Certifies products made from start to finish in a British factory by British craftspeople.
The Glazing Arbitration Scheme Logo
Independent service that deals with disputes between registered businesses and consumers.

Windows FAQs

Find out more about double and triple glazing in our useful Window FAQs Section or read our articles below.

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Anglian FAQs

Got questions about choosing Anglian? Find out why Anglian is the right choice for your replacement windows.

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Home Inspiration From Anglian

You'll want to pick your new casement windows wisely, so our "Good to be Home" online magazine will not only help to inform your choices but it's bursting with tips and information to help you transform your home. With great interior design tips, the background on Laura Ashley's stunning glass designs and the science behind our energy-efficient windows, you'll find what you're looking for.