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


Sliding Patio Doors

Sliding Patio Doors in aluminium or uPVC. See our range of patio doors in our showroom. Sliding patio doors are a great way to let fresh air and natural light into your home while still maintaining privacy. They are available with aluminium or uPVC frames, both of which offer benefits that make them worth considering.

Sliding doors give you all the benefits of an open-air environment without compromising on security, and they come in different styles.

Let’s take a closer look at what makes sliding patio doors so great!

Traditionally sliding patio doors are thought of as two doors but did you know that you can fit up to a whopping 13 metres with our aluminium sliding system!

Benefits of Sliding Patio Doors

Sliding doors provide lots of natural light with less frame to interrupt the view. They can fit into an existing space, or you can expand your opening to fit across the whole wall. Sliding patio doors are a fantastic option for homeowners who want to enjoy the light and airy feel of glass doors but are limited by space.


  • Our sliding patio door frames have safety features to prevent slamming.
  • Sliding Doors are usually the lowest cost option for patio doors.
  • If space is limited, you can arrange furniture close to the patio doors as they open within their own tracks.
  • Convenient for opening only a small amount without worrying about the wind catching the door.
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uPVC Sliding Patio Doors

At Heath Windows and Doors Cardiff, we are always mindful of ease of use and safety so we partner with manufacturers who offer the best products for style, quality and value.

Our uPVC sliding patio doors move smoothly and have a soft-close option to prevent heavy-handed banging or bouncing of the doors. We have full-sized samples available for you to try in our Cardiff Showroom.

uPVC sliding doors are chosen to match uPVC windows but if the patio door opening is particularly wide, we may advise aluminium. uPVC and aluminium sliding doors are available in many finishes so we will be able to supply aluminium doors and uPVC windows that work together.

Aluminium Sliding Doors

Aluminium Sliding doors are a popular choice for modern homes but can equally have their place in traditional buildings. Architects often specify aluminium because they know that its durability will stand the test of time.

Although aluminium doors are often chosen because of their sleek modern design, they are also practical, and sometimes the only option for larger openings. An aluminium frame is made only of aluminium whereas a uPVC door has an aluminium inner but uPVC outer. More aluminium equals more strength. This means the frame can hold much more weight even though slimmer than the uPVC counterparts. The slimmest frame available in aluminium is a mere 20mm. You’ll barely be aware of them.

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Aluminium Sliding Patio Door Sizes

Aluminium doors can be made a whole metre taller than uPVC doors, so if your opening is more than 2.4 metres high, aluminium will be the best choice for you.

A single door can be made as wide as 3 metres, and you don’t have to worry that a door this size would be heavy. You won’t even feel the weight as the door will glide smoothly on specially crafted running gear.

For extra-wide spaces – up to a whopping 13.2 metres, your doors can be configured with up to 6 panes. Read more about Origin aluminium sliding patio doors.


Which Material is Better for Sliding Doors? Aluminium or uPVC?

Much of what you read or hear about aluminium and uPVC sliding doors may be biased. A salesperson or business can be incentivised to sell one or the other or may not have one of them available. Personal bias may also be a factor. Older fans of uPVC may have grown up shivering with the old crittal windows which were appalling for heat control. Those who have suffered the old aluminium sliding doors which were either heavy or rattled in heavy winds may have sworn off them for life.

Neither aluminium nor uPVC are more disposed towards condensation. Condensation comes from factors within the home related to the temperature outside. Read our article if you want to know more about why condensation forms on modern windows.

None of these claims apply anymore. Modern technology has ensured that whichever material you choose, your sliding doors will meet standards for security, safety and thermal efficiency. They all have long guarantees and you will be happy with either.

Quality uPVC have more options such as wood grain features or mitred joints. Most aluminium customers are looking for a modern look so enjoy the smooth uncluttered plainness of aluminium. It really does come down to personal choice.

At Heath Windows and Doors, you will hear a balanced view. We have no preference for either. They both provide a perfect solution depending on the application. We’ll tell you about the advantages and disadvantages of each and the suitability for your style of home, your needs and your budget.

Bifold Doors
Sliding Doors
French Doors
Bifold doors open onto a deck with glass balcony

Bi-folding Doors

Bi-folding doors are perhaps the most flexible of all your choices. They can be configured to open in the centre or sides. You can do this with sliding doors too. What is unique about bi-fold doors is that they can all fold to the side to create a completely open space.

Bi-folding doors make a larger area look even grander providing a full view of the garden and seamless integration with the garden. They work equally well for smaller living areas too, because they make the room look bigger. No matter where these doors are installed they give a feeling of light airiness and sophistication.

Find out more about Bifold doors.

Stunning slim frame ALUK aluminium sliding doors

Sliding Patio Doors

Sliding patio doors provide lots of natural light with less frame to interrupt the view. They can fit into an existing space, or you can expand your opening to fit across the whole wall.

Our sliding patio door frames have been designed with safety features to prevent slamming.

Sliding Doors are usually the lowest cost option for patio doors.

If space is limited, you can arrange furniture close to the doors as they open within their own tracks. They are also convenient for opening only a small amount without worrying about the wind catching the door.

Learn more about sliding doors.

Opal Heritage french doors in grey

French Doors

French doors are ideal for many uses, particularly when you want to maintain a traditional feel. Beautifully suited to open up into conservatories or to make a unique design statement within your home. French doors are often the practical choice for homeowners who want to replace a window so that they step out into the garden. Typically French Doors are chosen for smaller openings but are equally effective in creating a glass wall effect by using two or three sets of French Doors.

Sometimes there is no choice if pillars are already in place, but sometimes our customers just prefer the traditional look of french doors.

Learn more about French Doors.

Bifold Doors

Let the light in with Aluminium Bifold Doors

The slimmest frames and widest views. Bi-fold doors are the ideal way to open up your home in Cardiff and bring the outside in, whilst still keeping the weather out. Our range of aluminium sliding and folding doors, delivering outstanding reliability, performance and design every time. Our range of bi-fold doors enables you to expand your living space by opening up wide expanses of your external walls to your outside space. Whilst at the same time keeping the weather out and the heat in during cold months.

Learn more about Aluminium Bifold Doors.

Origin aluminium bifold doors with glazing bars

Sliding Doors

French Doors

Aluminium French Doors for Classic Style

Aluminium French Doors are a great addition to any home. French doors are popular for opening up the back of one room rather than for wider expanses. As French doors are often smaller than other patio doors, they particularly benefit from the slimmer frames, allowing more view and light.

Our French doors are completely bespoke, crafted to your precise measurements with customisable colour and handle options.

Learn more about Aluminium French Doors.

Origin aluminium bifold doors with glazing bars



Bifold Doors


Sliding Patio Door Advice

Heath Windows and Doors are independent suppliers and installers. This means that we have no allegiance or obligation to any single brand. We are well respected in the industry and have reached a level that enables us to buy quality products at competitive prices.

We first listen to you and then make recommendations based on your needs, preferences and budget. The more you tell us, the easier it is for us to recommend patio doors that you will love for years.

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