Premier Double Glazing Installer - Cardiff
HUP Extensions
Modern, Fast, and Energy-Efficient
Looking to expand your home without the mess and disruption of a traditional build? A Hup Extension could be just what you need.
Modular Living Space
At Heath Windows and Doors in Cardiff, we’re proud to offer the revolutionary modular building system from Ultraframe, delivering sleek, energy-efficient home extensions with speed and precision.
What Is a Hup Extension?
Hup Extensions are a cutting-edge alternative to traditional brick-and-block home extensions.
Developed by Ultraframe, the Hup system uses pre-engineered, high-performance panels – known as Ultrapanel technology – to create strong, thermally efficient structures that can be installed in days, not weeks.
Everything is designed and manufactured off-site to exact specifications, meaning you’ll benefit from reduced disruption, faster installation, and superior thermal performance. It’s the smarter way to build – and perfect for the unpredictable Welsh weather.
Why Choose a Hup Extension?
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Faster Build Time
Most Hup Extensions are installed in just 3 to 5 days, compared to several weeks (or months) for a traditional build. That means less mess, less stress, and no time wasting surprises, typical of conventional building work.
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Minimal Disruption
Because the major elements are pre-built in a factory, there’s less dust, noise, and upheaval on-site.
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Energy Efficiency
Thanks to advanced insulation and airtight construction, Hup Extensions are around five times more thermally efficient than the average UK home – which could translate into lower energy bills for you.
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All-Weather Installation
Come rain or shine, we can install the Hup Extensions System whatever the weather. You won’t have to wait for dry spells or worry about costly weather delays.
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Clean, Modern Look
One of the standout features of a Hup Extension is its sleek, contemporary design. Whether you’re aiming for a minimalist garden room or a striking kitchen-living space, Hup delivers sharp architectural lines and a seamless connection between inside and out.
Combine your choice of roof with full-height glazing, stylish aluminium or uPVC frames, and your choice of external finishes – from crisp white render to warm timber-effect cladding – and you’ve got a space that feels as good as it looks.
We’ll design your Hup Extension to enhance your lifestyle and the kerb appeal of your home.
We’ll talk you through the options during your no obligation free home visit.
What Affects the Cost of a Hup Extension?
Every Hup Extension is made-to-measure, specially for you – which means the final price depends on your choices. Here are the main cost factors:
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Size and Shape
It probably comes as no surprise that the size and shape of your Hup Extension have a big impact on the overall cost. A larger footprint means more materials, more glazing, and more time on-site – all of which add to the price. But it’s not just about square footage.
The simplicity of the layout of your HUP extension also matters. A straightforward rectangular or square extension is usually the most budget-friendly option. As soon as you start introducing extra corners, angled walls, or split levels, the complexity increases – and so does the cost.
That’s because intricate designs often require additional structural support, custom-made components, and more labour during installation.
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Roof Style
Traditional orangeries combine timeless elegance with modern functionality. The design features a flat roof with a light pelmet around the perimeter of the room, which enhances the flow of natural light.
At the heart of the space is a lantern or multiple lanterns, adding a striking architectural element while flooding the room with even more daylight and giving the sense of space.
The traditional orangery design creates a sense of grandeur and openness, making it perfect for those who want a spacious, bright area that retains a classic, refined look.
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Windows and Doors
Windows and doors play a big role in your overall budget too. From slimline aluminium sliding doors that offer uninterrupted views and a modern finish, to timeless French doors or statement-making full-height windows, the style you select will shape both the character and cost of your extension.
Frame materials are another key consideration. uPVC is a popular and cost-effective choice, while aluminium offers a more refined aesthetic and slimmer sightlines – ideal for contemporary designs. Composite frames combine the best of both worlds, but come at a higher price point.
Double glazing comes as standard, offering excellent thermal performance and security. But if you’re looking for maximum energy efficiency or enhanced acoustic insulation, upgrading to triple glazing may be worth the investment.
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Wall Finishes
One of the most flexible features of the Hup system is its ability to work with a wide range of external finishes, allowing your extension to seamlessly match the rest of your home – or make a bold design statement if you prefer.
Want a crisp, modern feel? A smooth white or light-coloured render can give your extension a fresh, clean look that pairs beautifully with large glazing and contemporary roof styles. Prefer something more traditional? We can finish your Hup Extension in brickwork that matches your existing property, creating a natural continuation of your home’s architecture. If you’re after something a bit different, timber-effect cladding adds warmth and texture while still being low-maintenance and durable.
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Optional Features
While the structure of your Hup Extension forms the foundation, it’s the finishing touches that bring the space to life and make it truly your own. Optional features allow you to tailor the extension to your lifestyle and tastes – whether you’re aiming for a high-end, fully integrated living space or a practical, fuss-free room with clean lines and comfort.
You might want to include extras such as:
- Underfloor heating
- LED lighting and smart tech
- High-spec flooring or internal doors
Each of these extras adds both comfort and value allowing you to mirror the style of the rest of your home or push into a fresh design direction.
Hup Extensions for Conservatory Replacements
One of the most exciting applications of the Hup system is its ability to transform old conservatories. If you have a tired conservatory that’s too hot in summer or freezing in winter, we can often install a Hup Extension on your existing base – saving you money and turning the space into a true year-round room.
You’ll keep the footprint, but gain:
- Better insulation
- A modern look
- Full integration with the rest of your home
Why Choose Heath Windows and Doors?
Based in Cardiff, we’re your local approved Hup installer, serving South Wales, Bristol and Gloucester with pride. When you choose Heath Windows and Doors, you’re choosing:
- A team trained directly by Ultraframe
- A 10-year guarantee on all Hup Extensions (double the industry standard)
- Exceptional customer care from consultation to completion
- An experienced company with a reputation for quality and integrity
We’ll help you design the right space for your lifestyle – whether that’s a bright kitchen extension, a stylish home office, or a cosy family room.
Can you use a HUP extension as an office?
Yes, a HUP extension can make a great office space. A HUP extension is just like a normal extension so you can use it for any purpose. Bear in mind that a solid roof extension provides more protection from the sun if you are using a computer screen.
With its abundance of natural light and spacious layout, a HUP extension provides an ideal environment for working from home. The light and airy feel can help improve productivity and focus, while the solid structure and insulation ensure that it stays comfortable year-round.
Plus, a HUP extension offers a peaceful, separate area away from the rest of the house, giving you a dedicated space for work.
Whether you need a quiet place for meetings or a creative space for brainstorming, a HUP extension can be a fantastic solution.
How much does a HUP extension cost?
This is a question that everyone wants to know the answer to before getting a quote for a HUP extension. It really does depend on the type of roof, the size and configuration.
Your budget will play a large part in making your decision but you also must be careful that the choice is right for you. Cut corners to save money and you may find that your money is wasted when your extension doesn’t suit your purpose.
Don’t worry! Our quotes are free and without obligation. Book a home visit and at the very least, you’ll be armed with all the facts.
Will I Need Planning Permission for a HUP extension
A few years ago, you most certainly would have required planning permission for a HUP extension. However, the building regulations rules have changed along with guidelines for permitted development. It is likely that if your existing conservatory was built under permitted development rights, then you would equally have been allowed an extension under today’s rules.
Check the rules for planning, building regulations and building control for your area on the Wales. Gov Website.
The Wales.Gov website states:
‘Adding a HUP extension to your house is treated the same as adding a single-storey extension, and the same rules apply’.
We will help you determine whether your a HUP extension can be built under permitted development rights. There are some cases where permission is needed. For instance, if your building is or is within distance of a listed building. You can find out more about planning permission in Wales at Wales.Gov Website.
Is Finance available for a HUP extension
Our complete range of products is available on finance including orangeries, conservatory roof replacement, windows and doors and conservatories.
If you are considering a HUP extension, contact us to first arrange for us to come and look at your space.
Before making a decision about a HUP extension, consider your budget and all of the available options carefully as this will help you to settle on a solution that provides maximum enjoyment.
Refurbishment
Roofs
Conservatories
Garden Room
Start Planning Your Hup Extension Today
At Heath Windows and Doors, we believe modern extensions should be quicker, smarter, and better-performing. With Hup, that’s exactly what you get.
Visit our showroom in Cardiff to explore the possibilities
Call us on 02920 650854 to book your free home consultation or fill in our quick enquiry form to get started.
Let’s bring your dream extension to life – without the hassle.
