Modexa
Specialists in Precision Built Modular Extensions
Modexa Build are experts in modular building projects.
A passionate team working across the North of England, Modexa specialise in different types of modular extensions.
We will manage the entire project on your behalf, and ensure that your dream extension meets the fixed price and timescale quoted.
Modular Buildings
Faster, Smarter, and More Efficient Construction
A modular building is constructed in a precision-controlled manufacturing facility before being delivered to site ready for assembly. This modern method of construction offers significant advantages over traditional building methods.
At Modexa Build, we are passionate about modular technology and have successfully delivered numerous projects using off-site manufacturing techniques.
Modular construction can be used for complete dwellings, home extensions, garden rooms, annexes and a variety of other residential applications.
Take a look at our Guide to Modular for more information and learn why modular buildings are becoming the preferred choice for modern, sustainable, and efficient construction.
Love where you live
Create More Space Without Leaving the Location You Love
At Modexa, we say ‘Love where you live’.
We understand that often, people love the area where they live, and don’t want to move.
The location, proximity to friends and family, not to mention the cost of moving these days. All of these things are important.
However, sometimes their houses don’t give them the lifestyle they’d like.
Extending your house is a brilliant way of getting best of both worlds.
It will also add value to your property.
Modular builds reduce time, stress, cost and complexity.
Our modular builds include house extensions, annexes, conservatory upgrades and garden rooms.
So, if you want to love where you live just that little bit more, ask about modular extensions from Modexa Build.
Get the space you need in the location you love!
BUILT IN THE UK
Precision Manufactured in Britain, Proven Across Europe
All Modexa modular homes and extensions are designed and manufactured in the UK in accordance with current UK Building Regulations before being delivered to site for rapid installation.
By manufacturing in a controlled factory environment, we achieve:
• Exceptional precision and build quality
• Improved airtightness and energy efficiency
• Greater quality control
• Reduced waste and environmental impact
• Faster construction programmes
• Fewer weather-related delays
While modular construction is often viewed as an emerging technology in the UK, it has been successfully used throughout Europe for decades.
Countries such as Sweden, Germany and the Netherlands have embraced off-site construction as a mainstream method of delivering high-quality homes. In Sweden alone, approximately 45% of new homes are produced using off-site construction methods.
At Modexa Build, we are committed to bringing this proven European approach to homeowners across the UK, delivering sustainable, efficient and future-ready living spaces.
Fixed Price
Transparent Pricing with No Hidden Costs
At Modexa Build, we believe every customer deserves complete confidence in the cost of their project.
Because modular homes and extensions are fully designed, specified and priced before manufacturing begins, we can provide fixed-price quotations with clear project timescales.
This approach offers:
• Greater budget certainty
• Reduced risk of unexpected costs
• Transparent project planning
• Faster delivery schedules
• Improved peace of mind
Traditional building projects can often encounter unforeseen issues that increase costs and extend completion dates. Modular construction significantly reduces these risks by finalising designs and costs before installation begins.
Extension types
Modular Solutions Designed Around Your Lifestyle
Every homeowner’s requirements are different. That’s why Modexa Build offers a variety of modular construction solutions designed to suit different lifestyles, properties and budgets.
Extensions
Whether you’re considering a single-storey extension, double-storey extension or wraparound extension, modular construction provides a faster and more efficient alternative to traditional building methods.
Garden Rooms
Create a beautiful and versatile space for work, relaxation, entertainment or hobbies with a bespoke modular garden room.
Granny Annexes
Provide comfortable and independent accommodation for family members with a purpose-built modular annexe tailored to your needs.
Conservatory Conversions
Transform an outdated conservatory into a modern, insulated and energy-efficient living space that can be enjoyed throughout the year.
Accessible Living
Modular construction offers an ideal solution for creating accessible and future-proof living spaces that adapt to changing mobility and lifestyle requirements.
CASE STUDY
See How We Transformed This Home with Modular Construction
Every project tells a story.
Discover how Modexa Build helped a homeowner create additional living space using modern modular construction methods, delivering a high-quality extension with minimal disruption and exceptional results.
How it Works
How our design and build process works:
1
Consultation
Get in touch with us for an initial, no obligation chat about your potential project. You’ll find us experienced, professional and full of ideas. What do you want from your extension? How is it going to improve your living space?
2
Site Assessment
In order to provide you with an accurate quotation, and discuss your vision in situ, we will visit the site of the proposed build and consult with you about what can be achieved.
3
Design and Quotation
We will provide you with a tailored proposal resulting from our consultation. The proposal will be fully costed and give you accurate information around delivery and lead times, including specifications and technical drawings.
4
Off-site Construction
Whilst the superstructure is being manufactured off-site with our manufacturing partners, we will be preparing your site for delivery, so that, on delivery, everything goes as smooth as possible.
5
Delivery and Installation
With a fully-prepared site now in place, all modules will arrive ready to assemble, with installation fully completed within days.
frequently asked questions
Your Questions, Answered
Here are some of the most common questions about our modular extensions, pricing, and process.
A modular extension is manufactured off-site and delivered ready for installation. It consists of precision-engineered structural components that meet current Building Regulations and are assembled quickly on site.
The cost of a modular extension depends on factors such as size, specification and complexity. Larger projects generally require greater manufacturing and installation input.
For a detailed breakdown, view our Modular Extension Cost Guide.
Not necessarily. Modexa Build can provide a complete design-and-build service using our own measurements, designs and technical drawings, helping to reduce project costs and streamline the process.
For particularly complex projects, independent architectural advice may be beneficial.
Still have questions? Contact our team for friendly advice and guidance.