200+ Branches nationwide

You’re never far from our expert advice and huge range of 6000+ products, plus thousands more made-to-order.

50 years in the trade

For five decades, we’ve served fabricators, installers, and specifiers across the UK.

Leading the field in sustainability

Last year we recycled 3,000,000 window frames, showing our commitment to sustainable home improvement.

Unrivalled choice of Profile Systems 

We offer our fabricators the widest range of systems in the UK and the technical support to back it up.


Dream House Extensions Made Simple

Introducing Eurocell modular house extensions, a revolutionary solution for seamless home expansion. Eurocell transforms construction with its swift, clean, and hassle-free system. Say goodbye to extensive digging; Eurocell simplifies foundation setup. Our prefab home designs minimise on-site time, delivering cost and time savings for homeowners and businesses alike. Tailored to each property, these bespoke structures redefine modern living. Additional living space in weeks, not months.

The hassle-free way to build your dream extension

House Extension on new build homeHouse Extension on new build home

A revolutionary new way to build

The EurXtension system combines our market leading, high performing products with our passion for design innovation. The result is a cost-effective, hassle-free house extension built in weeks.

  • Pre-fabricated SIP panels outshine traditional building materials.
  • Delivery in sections means a quicker, less disruptive build process than conventional methods.
  • Eliminates the need for traditional foundations and can be built on an existing or new base.

Why choose a Eurocell House Extension

Quick installation

Prefabricated, precision
engineered EurXtension in weeks not months

Energy Efficient

Transform cold conservatories into well insulated prefab extensions built to Building Regulations

Building Regulation approved

Our roofing system is pre-approved by Stroma, nationally licensed building regulators

Added home value

Add more than just space to your home. Add value to your home.

Fully managed service

We manage the whole project for you, from design to completion.

Transform your home in weeks

House Extension with beige SIP panelsHouse Extension with beige SIP panels

Conservatory replacements

Convert your conservatory into a modern energy-efficient building.

  • We replace your old conservatory with a brand-new house extension that's highly energy-efficient and incredibly strong.
  • We recycle your old window frames and conservatory roof, creating new window frames and ensuring minimum waste.
  • In most cases EurXtensions is fully compatible with your existing base.

New House Extensions

A new room built up to three times faster than traditional methods.

A EurXtension is the easiest and fastest way to extend your home. Planning permission isn't usually required, and you don't need an architect.

  • A EurXtension is built up to three times faster than traditional methods.
  • In most cases, you won't need planning permission for a EurXtension.
  • We'll design your SIP extension to your exact specifications, ensuring it complements the style of your home.
House Extension with black SIP panelsHouse Extension with black SIP panels

EurXtensions the smart choice

Conservatory replacements

Request a design

Add space and style to your home from as little as £23,999

Once we've surveyed your home and provided a design and quote, we guarantee that is the price you will pay, so you can rest assured there will be no spiralling costs.

House Extension Before and AftersHouse Extension Before and Afters

Your new house extension made affordable with finance options to suit you

Get your new house extension in weeks and spread the cost over years with our payment options.

Request a Design 

Give us a few details so we can get started on your project.

Building from the base up

Our extensions are designed to be versatile. That means you can create a bespoke design that suits your home.


SIP panels are so light they can be built directly onto your existing concrete base, which cuts out cost and time. We’ll use your existing base if you’re upgrading your conservatory. Or for new extensions we’ll create the base for you.


Our wall system comes in a range of finishes so we can create an extension that blends seamlessly with your home. There are several options to select from bricks to match or rendered to contrast.

Windows & Doors

Choose from our vast range of window & door styles to match or contrast with your home. Large expanses of glass & sliding doors allow natural light to flood the space.


Our house extensions have a fully insulated, solid tiled roof to keep your room warm in winter & cool in summer. And why not add some rooflights too, they’ll let in extra light so your space will feel beautifully bright & airy.

Interior & Finishing

Your interior will include electric cabling to your requirements and will be expertly finished, with plastered walls and ceilings ready for you to decorate.

EurXtension in 5 simple steps

1: Home Consultation

Our approved installer will visit your home at a time to suit you to carry out a free survey and give you advice and inspiration.

2: Site Survey

Your installer will guide you through creating your own unique space, draw detailed specifications and provide you with a quote.

3: Design & quote

Once your design is agreed upon, your installer will provide you with a detailed work schedule, so you know what's happening and when.

4: Bespoke manufacture

To minimise mess and distruption to you, we make your extension at our factory so it's ready to be assembled on-site.

5: Build EurXtension

Our team of installers will expertly assemble your extension & complete the interior finish. They'll treat your home with respect and minimal disruption.

Then, sit back, relax and enjoy your new space

Extensions made simple

A EurXtension cuts out the headache and time taken to deal with different trades for different parts of the build. We manage the whole project for you, from design to completion. You’ll have one point of contact who will deal with your project and any queries you may have throughout the installation.

House Extension with black SIP panelsHouse Extension with black SIP panels

See how Alex and Lisa had their home transfomed with a EurXtension

When Alex and Lisa decided to reinvingorate their tired old conservatory, they opted for a EurXtension which not only added a beautiful warm space to use all year round, they added value to their home too.

Watch the Time Lapse of Alex and Lisa's EurXtension build

EurXtensions are naturally more eco-friendly than other build types

At Eurocell, we're committed to producing high-quality products that reduce our environmental impact. That's why we've been at the forefront of sustainable developments in the UPVC industry for decades. And it's also the reason we've worked so hard to ensure our EurXtensions are built to the same high standards.

Extensions made simple

Discover EurXtension, the revolutionary extension system from Eurocell.

Further reading

Case studies | Blogs


How we transformed Alex and Lisa's unusable conservatory into a fantastic room

Alex and Lisa had an old conservatory they could only use during spring because it was too hot in summer and cold, damp, and mouldy in winter.

Read more >


Transform Your Home: The Benefits of Replacing Your Conservatory with a EurXtension

Are you a homeowner in the UK with a conservatory that's too hot in the summer and too cold in the winter?

Read more >

EurXtension House Extension FAQs

At Eurocell, were always happy to help. Check these FAQs for answers to some of the most common questions about EurXtensions. We've listened to your most popular queries and gathered some helpful links and information. If your question remains unanswered, contact us today and one of our experts will give you everything you need.

Frequently Asked Questions
Why should I choose a EurXtension?
Because a EurXtension is your dream extension made simple! We fully manage the process for you from design to completion and you can be enjoying your new energy efficient space in weeks not months; not to mention a fixed price and the option of finance to help you spread the cost. 
Will my EurXtension be energy efficient?
Yes, each component of the EurXtension system plays a part in delivering an energy efficient space. SIPs panels provide unrivalled insulation and airtightness; combining SIPs panels with our A-rated windows and doors, and our roof solution that is 10 times more efficient than our A rated windows you can be confident that your new space is working hard to save you money on your energy bills.
Will I be able to use my EurXtension all year round?
Yes, EurXtension system allows you to create a space that is welcoming and comfortable whatever the weather!
Why should I choose a EurXtension over a warm roof solution?
Choosing to replace your existing conservatory with a EurXtension gives you an opportunity to create a tailor-made, thermally efficient space perfect for your needs.  however if your current conservatory is already a space you love but you’re looking to resolve the age old too hot in summer and too cold in winter issue, then our Equinox roof system might be what you’re looking for, fully insulated, suitable to install on any existing conservatory in as little as 48 hours and the option of adding rooflights to ensure that your conservatory is still a light and bright space for you to enjoy.
Can I customise my EurXtension?
Absolutely! EurXtensions can be tailor-made to create your dream space. Choose the shape you require, decide where you want them and then select your windows and doors from our range of styles and colours, choose your roof style, tile colour and if you like why not add rooflights for that extra flood of natural light!
Will a EurXtension add value to my home?
Whether you’re looking to add a new extension or replace an old conservatory, a EurXtension will undoubtably add value to your home.  Adding additional rooms to a house will always increase the value of the property, and with recent reports indicating that an old conservatory can de-value a home by as much as £15,000 due to their reputation of being too cold in the winter and too hot in the summer, choosing to add a EurXtension to your home will add value.
How much does a house extension cost?
If you're considering a house extension, keep in mind that several aspects can impact the overall cost. These encompass elements such as the extension's size, style, and the amount of glazing in the walls and roof. Don't forget to explore modern solutions like Eurocell's EurXtension, which could provide a valuable addition to your project.
Do I need planning permission for an extension?
Orangeries or house extensions may not always require planning permission, usually falling under permitted development if size and criteria are met. For full criteria, visit the Planning Portal website. Consider Eurocell EurXtension for innovative options.
What's the difference between orangery and conservatory?
A conservatory boasts a glass structure with a pitched glazed roof perched upon a brick base, whereas an orangery features a brick structure with spacious windows and a flat roof incorporating a glass lantern.
How long is the house extension process?
The key time determinant for a house extension is its foundation work. Duration depends on ground conditions and need for piled foundations. After the base, using Eurocell's EurXtension could speed up construction, taking weeks with pre-fab or months with traditional methods.
Are SIP panels an energy saver?
SIP panels are indeed energy savers, boasting roughly 50% higher energy efficiency compared to conventional timber framing. By ensuring homes are airtight and minimising heat leakage, SIPs effectively lower energy costs for occupants while also reducing carbon emissions released into the environment.

News from Eurocell

Tips, advice, blogs, case studies, and announcements: get all the latest developments direct from Eurocell HQ. You won't miss a thing!

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Technical Hub

Check spec sheets, CAD drawings, data sheets, certifications, and more in our Technical Hub so your next project goes without a hitch.

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Eurocell Recycle

Through two purpose-built recycling centres and millions of pounds of investment, we are the UKs largest recycler of UPVC. Get all the details here.

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