We have window styles for

Every home


Every personality

Bay windows, Tilt & Turn windows, Casement windows, Bow windows, Vertical Sliding Sash, Mock / Faux Sash, Double / Triple Thermal Glazing, Security Glass, Privacy Glass…All bespoke builds to suit your requirements.

Our Story

Smart Homes NI are Northern Ireland’s only ‘Eco Home Design’ company.

We achieved Eco status because our products are not only global leaders in thermal efficiency (A++), they’re also Eco friendly. So not only will your new windows and doors look beautiful, they’re good for the environment too.

Thank you to all the families who have got behind us so far, together we’re not only creating beautiful homes…we’re also building a better, smarter, future.

you’re in great hands.

Our product accreditation and certifications

Our Market

Leading Guarantees


All our PVC-U frames are backed by our industry leading 20 year guarantee. Twenty years of complete peace of mind.


We offer a 15 year glass protection warranty (The industry standard is just 5 years). Enjoy crystal clear glass for 15 years, we stand by it.


We stand by the quality of our work. Giving you a 10 year warranty on all moving parts,
to ensure everything continues to work smoothly.


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.

let us build you something


Read a little about all our window styles below…

Looking for Elegant New Casement Windows?

Looking for SPECTACULAR NEW Bow/Bay Windows?


Looking for Beautiful New Reversible Windows?

Looking for New Tilt & Turn Windows?



Leading the way

in quality and performance

Thermally Efficient

Grade A++ making your new windows as much as 20% more energy efficient than A+ models (U-value achievable = 0.9)

Advanced Security

All our windows exceed governmental “Secured by Design” standards and exceed PAS24 hardware standards, setting new level of safety for our customers.

Acoustic Isolation

All our windows have triple glazing capabilities which maximizes sound-proofing.

Eco Friendly

All materials used are 100% recyclable.  So not only will your new windows look beautiful, they’re eco-friendly too.

Colour Range

Express yourself with 20 colours available in our range

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

SmartFit™ Installation process

To get the true quality and performance out of your new windows it’s vital they’re installed accurately.

The quality of installation is often over looked by homeowners.  They see that 2 companies sell the same product therefore the outcome of the installation will be the same.  Sadly this is rarely the case.

We’ve created an industry leading installation standard for ourselves called our “SmartFit™ method, which ensures maximum energy efficiency and product longevity.

Below you can read a featured article written about us and our “SmartFit™ method in the popular home improvements website Cosmopolithome.

In the Media

Our quality design work, and the cause we support, have caught the attention of the media. We love it when this happens because it raises awareness of our company and helps us serve more people like you.

(click a link below to read more)​

We also

sell Doors

Smart Homes NI are one of Northern Irelands leading door suppliers, we supply and fit an extensive range of door types, everything from; Composite Front Doors, Stable Doors, Aluminium Bi-Fold Doors, French Doors, Sliding Patio Doors and Period Traditional Doors.

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


Total Value £750

All yours completely free.

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, or equivalent value) gets our highly sought after “SMART LOOK BONUS” giving you a full year of window cleaning totally free.

Windows of every colour

For Any Personality.



Choose your perfect Windows

Talk with one of our Product Advisers or take our online ‘Perfect Windows Challenge’ to choose your perfect Windows.


Time To

Measure Up

Request a home visit or send us your window measurements and we’ll get you a quote.


Secure It

Once you’re happy with everything,  it’s time to secure your spot.



The next step is a surveyor will come out, just to check everything is ok and all can be done.


Your Brand New

Now the exciting part! We’ll be ready to start fitting your brand new Windows. A fitting normally takes between 1-3 days.

Check out what our clients

have to say about us!

In It Together

For every job we complete (no matter the size) we give to WWF on behalf of your family. This money is used to help tackle climate change…so by improving your home and reducing your carbon footprint, you’re improving everyone’s for generations to come.

You’ll get sent a polar bear gift pack in the post as a thank you for tackling climate change with us.

With your help we’re making the planet a little cleaner for the generation coming behind us.

Let’s make ours a home to be proud of.

For every job we complete (no matter the size) we give to WWF on behalf of your family. This money is used to help tackle climate change…so by improving your home and reducing your carbon footprint, you’re improving everyone’s for generations to come.

You’ll get sent a polar bear gift pack in the post as a thank you for tackling climate change with us.

With your help we’re making the planet a little cleaner for the generation coming behind us.

Let’s make ours a home to be proud of.

Frequently Asked Questions

As the largest window suppliers in Northern Ireland, we use the best windows in the current market, that is, Deceuninck Window systems. We have used other brands over the years likes Rehau, Veka, Kommerling and Spectus.

However, after attending one of Europe’s biggest exhibitions, we were blown away by the supreme quality of Deceunick. Thereafter, we made the switch to this brand and there was no looking back.

While looking for the right windows in Northern Ireland, you can always go for uPVC as they offer the following benefits:

  • They are highly affordable. These windows serve as excellent value for money especially when compared to other materials like aluminium.
  • Being impressively energy efficient, these windows are rated A+ and A++ on Windows Energy Ratings, making our windows the best performing windows on the market.
  • With minimal maintenance, these windows can serve a lengthy span ranging from 20 to 25 years
  • Our uPVC can be finished in an impressive range of colours and wood grain textures, allowing you to create unique bespoke windows.

New windows in Northern Ireland are increasingly being made of aluminium due to the following benefits offere:

  • Aluminium, being a low density metal, is used to create slim lined window frames that are usually high in strength. They can withstand extreme weather conditions like frost and bright sunlight, without contraction and expansion, allowing the window frame to remain unhinged.
  • Through minimal maintenance, these windows ca last a lifetime.
  • They are available in a variety of colours from the full RAL range.

While choosing new windows for your home, you can refer to the following styles.

  • Casement- This is the most widely used window style in the UK. The most notable feature of these windows is that they open outwards. This type is highly versatile and can be even hung from different directions- top, bottom or side.
  • Sliding sash- Although these windows replicate the 17th century aesthetically, they can make a great fit in recent times. They typically slide vertically using an adept sliding mechanism
  • Faux/mock sash- This unique type of windows, typically follow the casement window mechanism, however, their outward appearance is similar to that of sliding sash window
  • Tilt and turn- This kind offers two-in-one hinging mechanisms, By tilting the window slightly on the inwards, allows for great ventilation without needing to fully open. Or turn the handle entirely for a full 90 degree opener.

We offer two kinds of glazing for windows in Belfast and throughout NI – double and triple glazing.

  1. Double glazing- This is the most popular glazing type in the UK, making up to 80%. They feature two panes of glass, separated by cavity. This gap or cavity is filled with an efficient inert gas like krypton or argon. As a result, you get incredible thermal efficacy by limiting the amount of heat which escapes through the window. This kind of glazing offers excellent noise resistance.
  2. Triple glazing – This type of glazing uses three glass panes instead of two. It has two cavities, filled with an inert gas, similar to that of double glazing. Thus, this type has advanced thermal efficiency and noise reduction capabilities.

Nowadays, most windows in NI use different glass and designs suitable for your taste and preferences. Smart Homes NI offers you different glass types, e.g. decorative glass, obscure glass, low e-glass and toughened glass.

Decorative glass includes glass with different aesthetics and designs, like Georgian glass, while obscure glass includes frosted or satin patterns, making it ideal for privacy. Low e-glass offers great thermal efficiency and toughened glass offers great strength.

Our windows cater to the PAS24:2021 certification, which meets the required security standards of all residential properties in the UK. Regardless of this, we even offer additional measures to advance your windows security:

  • Multi-point locking mechanism – Offering multiple locking points around the frames, preventing force entry to a great extent.
  • Internal beading – To insert the glass on the inside of the window frame. Older frames are the opposite, meaning the glass can easily be popped out from outside your house, easy access for intruders.  Always insure your windows are internally beaded.
  • Key-operated handles – This feature allows you to lock your windows from the interior, reducing the risks of forced entry.
  • ‘Secured By Design’ – This official UK police certification and scheme recognizes your windows as a home-improvement product for high-levels of security

All our windows are designed bespoke to a homeowners measurements and specific requirements, hence they are manufacture from scratch. Our standard lead time is usually around 6-8 weeks from survey to fitting. 

Lets Price Your

New Windows

Staying true to our Price Transparency Principle and unlike many companies
who will insist on a home visit before telling you any prices.

We’ve put together an honest pricing guide, so you can get an idea of what it might cost for the windows you like, with zero hassle.


View our extensive range of colours and window types


See all the factors that impact price


Enjoy a hassle free way of choosing your perfect windows