Sliding Patio Doors

patio doors

you’re in great hands.

Our product accreditation and certifications

Our Market

Leading Guarantees


Rest assured that all our frames come with an unparalleled 20-year guarantee, providing you with two decades of worry-free ownership.


Experience the clarity of crystal-clear glass for an impressive 15-year period, as we go above and beyond the industry standard by offering a glass protection warranty that is three times longer than usual.


We take great pride in the quality of our work, which is why we confidently provide a 10-year warranty on all moving parts. This ensures that everything operates seamlessly for an extended period.


We’ll never insist on a home visit before giving you an initial quote. We always aim to give you honest open pricing upfront, via phone or email.

Do you know the Sliding Patio Door Style you’d like?

Click your style below to learn more, or keep scrolling to find out a little about all our Sliding Patio Doors…

Aluminium Bi-fold Doors


Aluminium Bi-fold Doors

Sliding Patio Doors


Sliding Patio Doors

let us build you something


Looking for Beautiful, Bold, Bi-fold Doors?

Looking for Beautiful New Sliding Patio Doors?

Sliding patio doors in Belfast have become a popular pick in the home improvement sector. Owing to the large-size structure of the patio doors that support glass panels, homeowners are able to enjoy clear panoramic views with no barriers.

Other than the amazing design and appeal, patio doors offer a great deal of practicality including remarkable ventilation, easy access from home to garden, etc. Also, the large glass panels installed in these sliding doors allow a vast amount of natural light to enter the house.

Coming to security, every patio door is equipped with multiple locking systems that exceed the governmental security standards and assure paramount safety for the homeowners.

Furthermore, we offer expert installation using our trademarked SmartFit™ method that guarantees full air sealing and protection against leakages, draughts, strong winds, etc.

Available in both Aluminium and uPVC frames, these sliding patio doors reflect elegance and attract every onlooker’s attention.

In an attempt to deliver the exact doors that you have ordered, we manufacture doors tailored to your preferences. We let our clients choose from a wide range of glazing and handle options.

So, if you are planning to upgrade doors in your home, don’t delay anymore. Invest in premium-quality and striking sliding doors in NI and get good value for money.

Located in Belfast & Lisburn, our team is able to cover homes across Northern Ireland.

Connect with us and we’d love to help you with any home improvement work you need.

Leading the way

in quality and performance

Thermally Efficient

Achieve the pinnacle of thermal efficiency with our Grade A+ sliding patio doors.

Advanced Security

Experience unmatched safety with our sliding patio doors, surpassing both governmental “Secured by Design” standards and PAS24 hardware standards. We prioritize your security above all else.

Acoustic Isolation

Enjoy maximum sound-proofing capabilities with our patio doors, we can install acoustic laminated glass to dampen even the harshest external noises.

Eco Friendly

Embrace sustainability with our patio doors, as all the materials used are 100% recyclable. Not only will they enhance the beauty of your space, but they also contribute to a greener planet.

Colour Range

Personalize your space with our extensive range of 30 colors, allowing you to express yourself and find the perfect match for your style.

Now that’s what I call a perfect fit, check out our

SmartFit™ Installation process

Installation plays a crucial role when it comes to ensuring the maximum quality and performance of your new patio doors. This aspect is often overlooked by homeowners as they assume that every seller does the installation in the same way.

In reality, that’s not true. At Smart Homes NI, we have created an industry-leading installation standard, “SmartFit™that assures maximum energy efficiency and longevity of the sliding patio doors in Belfast.

The famous home improvements website Cosmopolithome also featured an article on our trademarked SmartFit installation method that can you read below.


In the Media

Our exceptional work has garnered media attention. We are proud of this recognition as it helps raise awareness of our company and enables us to serve more customers like you.

(click a link below to read more)​

Sliding Patio Doors of any colour

For Any Personality.



Choose your perfect Sliding Patio Doors

Connect with our knowledgeable advisers or participate in our “Perfect Patio Doors Challenge” to discover your ideal Sliding Patio Doors.


Measurement Process

Request a home visit or provide us with your door and wall measurements, and we will promptly provide you with a quote.


Secure Your Order

Once you are satisfied with all the details, you can secure your spot and proceed with your order.


Inspection by Surveyor

As the next step, a surveyor will visit to ensure everything is in order and feasible for installation.


Installation of Sliding Patio Doors

We will be ready to install your new Sliding Patio Doors with 6-8 weeks. The entire fitting process should be done in 1 day.

Why More and More Families Are

Choosing Us​

Smart Homes

Gift Pack

We’ve teamed up with some amazing home improvement companies from around Northern Ireland.  Through us they’re offering our customers unbeatable discounts on their services.  These partnerships are growing every day.  You don’t want to miss this!! 

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And many many more… We’re constantly adding to this gift pack and we offer LIFETIME ACCESS TO A SELECT NUMBER OF HOMEOWNERS EACH MONTH when they use us for any of our services.
A lifetime of crazy discounts on all kinds of home improvement services. Get in touch to find out how you qualify…

Thousands of pounds of services FOR FREE!! That's the smart move, that's Smart Homes NI.

Smart Homes


patio doors

Total Value £450

All yours completely free.

patio doors

Get a years free window cleaning with our

Smart Look Bonus​

Anyone who buys an entire house of windows and doors (minimum 6 windows 2 doors) get our highly sought after “SMART LOOK BONUS” giving you a full year of window cleaning totally free.

Check out what our clients

have to say about us!

In It Together

Polar Bear Certificate (WWF Initiative)

On every order that we complete, a portion of it is given to the WWF as a contribution to a valuable cause i.e. climate change. Climate change issues should be addressed immediately to ensure a greener planet.

So, by shopping with us, you can reduce your carbon footprint while enjoying remarkable home improvements.

Also, we make sure to appreciate every help in tackling climate change by sending a polar bear gift pack with each post.

Collaboratively, we can make the planet a little cleaner and greener for the generations to come.

On every order that we complete, a portion of it is given to the WWF as a contribution to a valuable cause i.e. climate change. Climate change issues should be addressed immediately to ensure a greener planet.

So, by shopping with us, you can reduce your carbon footprint while enjoying remarkable home improvements.

Also, we make sure to appreciate every help in tackling climate change by sending a polar bear gift pack with each post.

Collaboratively, we can make the planet a little cleaner and greener for the generations to come.


Polar Bear Certificate (WWF Initiative)

Frequently Asked Questions

Choosing between these two doors types depends upon your taste, preference, and home requirements. We recommend sliding patio doors if you desire having the largest unbroken view of your garden or countryside, with flowing access in and out.

These doors come with bigger glass panels, thus providing better light transmissions and better views. They are widely known for creating “glass walls”, a popular design in modern homes.

However, unlike sliding patio doors, bi-fold doors can be opened up almost entirely, folding away to leave a large open space between the inside and outside of your home.

Both styles have their benefits and both are great choices.

It completely depends on what you are looking for. However, aluminum and uPVC materials are popular choices. That’s more because:

● Both these materials are extremely durable and affordable.
● They are available in an extensive range of colors.
● The door frames made up of these materials give a modern look to the property.
● They are very durable and long-lasting.
● They involve low to no maintenance.
● Thanks to advanced measures such as glazing; these doors are highly energy-efficient.

Yes absolutely, both our aluminum and uPVC sliding patio doors in Belfast are designed with multiple advanced hardware to ensure heightened security. Here are the amazing features of our patio door products:

● Multiple points locking system
● Internal beading
● Toughened glass panes
● Key operated handles

Our patio doors offer higher levels of safety as they exceed PAS24 hardware as well as governmental “Secured by Design” standards.

Yes, all our patio doors come with warranties. We offer market-leading guarantees for all of our aluminum and uPVC patio doors. On purchasing our door products, you will receive:

● Twenty years of warranty on the patio door frames.
● Fifteen years of glass protection guarantee.
● Ten years of workmanship warranty on all moving parts.
● Upfront honest pricing before providing the initial quote.

All of our sliding patio doors are manufactured from initial design phase to completion in approximately 8-10 weeks. Our team of experts manufacture and customize your door products based on your taste, preference, and home requirements. This leads to varying the expected installation times. The factors that determine the lead times are as follows:

● Door sizes
● Door sections
● Numbers of doors ordered
● Number of orders our factory is currently processing

Usually, the typical time required to complete the entire installation process ranges between 8-10 weeks.

Lets Price Your

New Patio Door

We indulge in fair business practices and prioritize customer service over anything else. Unlike most companies, we maintain a transparent pricing principle and do not mislead our clients.

Our pricing guide is made available on the website to help customers in determining the estimated cost of sliding patio doors that they like hassle-free. .


View our extensive range of colours and patio door types


See all the factors that impact price


Enjoy a hassle free way of choosing your perfect patio door