Cardiff's Premier Double Glazing Installer - Windows, Doors, Conservatories and Roofs

Opal Heritage aluminium windows and doors

Opal Heritage Aluminium Windows and Doors

Opal Heritage Aluminium Windows and Doors are completely bespoke and made with premium-grade aluminium. Our modern aluminium windows are designed to give the best style, durability and long-lasting performance. 

The choice of standard and bespoke colours and finishes and a variety of handles for aluminium windows help you to make the choice that will complement and enhance the look of your home.

Aluminium Windows For a Classic Look That Will Stand the Test of Time

Aluminium windows are high on the wishlist for most homeowners. No wonder. They can’t be beaten for opulent style, performance and low maintenance.

The choice of standard and bespoke colours and finishes, and a variety of handles for aluminium windows helps you to make the choice that will complement and enhance the look of your home.

While modern aluminium windows are is a bit more expensive than uPVC, over time they can pay for themselves as they look fresh and new for many years. In Cardiff, the anthracite grey frame has proved to be the most popular choice for aluminium frames.

Opal Heritage Aluminium Windows in Kitchen
Opal Heritage aluminium windows with Georgian bars

Choice of Frame Size

Our range of aluminium windows is often chosen for the slim frames giving a more modern, sleek look while also allowing for more window area. More glass equals more light, slim sightlines and the feeling of space. The strength of the frames means that larger areas can be glazed compared to uPVC alternatives.

Opal Aluminium Windows are Fully Customisable

Your aluminium windows are fully customisable, so you can choose where you want openers and whether you want them top-hung or side-hung. Opening windows are more expensive than fixed pains of glass. That makes sense but you must choose the best configuration for the way you like to live. You do not have to copy what is already there. Each window can be specified to work however you want it to.

The Opal Windows Range


Opal Living Aluminium Windows

The Opal Living Window system offers the flexibility of uPVC but benefits from the long life and durability of Aluminium. The Opal Living aluminium range is available with the three popular frame styles – Ovolo, Chamfered and Square – making these stunning windows suitable for any home.

With a sightline of 85mm and u-values of 1.3/M2k, this window offers the most popular aluminium alternative to uPVC frames.

  • Suitable for all applications -residential, commercial and retail.
  • Thermally broken system for energy efficiency.
  • Hardware & security upgrades.
  • PAS 24:2012 available on request.
  • Ultion 3 superior lock upgrades as standard.
  • All colours are available on request.

If you want a low-maintenance window, with high-performance levels at an
affordable cost, then Opal Living aluminium windows could be perfect for you.

Grey Opal Living Aluminium Windows
Opal Heritage Windows In listed building

Opal Heritage Aluminium Windows

The biggest difference between the Opal Living and Heritage ranges is the styling. The Heritage range is designed to replace old steel windows and are perfect for listed buildings where authenticity is essential.

Of course, these windows are equally popular for modern buildings too.

In addition to the Opal Heritage windows, the Opal range also includes the Opal Elegance range with a flush sash finish and an aluminium Tilt and Turn range.

Expert Advice

Our advisers will help you think about each room and its function so that you can plan windows that you will love forever.

Aluminium windows are an investment for your home that you will want to enjoy for many years and if you decide to sell, your choice of windows could help you achieve a better asking price. Aluminium windows are high on the wish list for homeowners.

The Opal Aluminium Doors Range


Opal Aluminium Bifold Doors

Opal Definitive

The Opal Definitive range of bifold doors offers smooth sliding as standard thanks to dual steel rollers. With a maximum width of 1200m and a maximum height of 2,500mm, these bifold doors are built to last.

Opal Deluxe

As you would expect from the name, the Deluxe range of aluminium bifold doors is exactly what it says – a superior range.

The Deluxe range offers slimmer sightlines for maximum daylight and minium view interruption.

Opal Finesse Aluminium Bifold doors hinge view
Opal Finesse Aluminium Sliding Doors

Opal Finesse Aluminium Sliding Doors

These stunning large pane doors truly make you feel as if the outside integrates with the inside.

Uninterrupted views make it feel as if the room flows into the garden and give an impressive feeling of space.

As with all of our aluminium windows and doors, these sliding doors are thermally efficient and secure.

These doors are available with double or triple glazing and come with a choice of standard colours plus bespoke colours and finishes. You’ll be spoiled for choice.

Our beautiful sliding doors open and close with ease and offer the option of soft closing.

We’ll be happy to run through all of the options with you.

Pop into our showroom or contact us to arrange a home visit. 

Opal Aluminium for Bay Windows

Aluminium windows are just as suitable for bay and bow windows as any other window. If you have a large picture window in the middle, you’ll appreciate the slimmer frames to make the most of the view.

The difference between bay and bow windows is that a bay window is characterised by a large window in the middle and a bow window is made up of smaller, usually evenly spaced windows.

If you have a home that has standard windows and bays, you’ll be able to match them up beautifully.

Traditionally, the large window in the centre is left as a fixed window but due to the strength of aluminium, you could maximise airflow by having the centre as a top hung window without spoiling your outlook.

Aluminium Bay Window
Grey Opal Heritage Aluminium Door Lock

Choice of Configuration

You still have the same wide choice of configurations as you do with uPVC. The most popular choice of windows are casement windows. Casement windows are characterised by the fact that they are hinged, most often on the side but also on the top and even sometimes on the bottom.

Bear in mind when choosing your aluminium windows that you do not have to choose the same configuration as your existing windows. This is your opportunity to choose the aluminium window configuration that suits you perfectly. Our consultants are highly experienced and will help you to choose the best configuration for style, airflow and view. In most cases, your opening sizes will stay the same, but if you need spaces widened or narrowed, we can also advise on the best solution.

More Aluminium Windows and Doors

Grey Aluminium Windows



4 leaf aluminium bifold doors in white


Aluminium French Doors


Durable and Energy-Efficient

Aluminium windows and doors are finished with durable, scratch-resistant powder coating, making them almost maintenance-free and smooth to the touch.

The Opal Heritage Aluminium range of windows and doors features some unique features at less cost than some of the better-known manufacturers.


Slimline Aluminium Frames

Slim frames mean less material, more view and maximum light.

With a range of options including configuration, hardware and colours, aluminium windows are the perfect long-lasting investment for your home.

Opal Heritage Aluminium Windows on an industrial looking building
  • Serving Cardiff, Newport & Swansea for over 10 Years

    heath team photo

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