Leka Xi Modular Extensions Get An Instant Quote!


Leka Xi Modular Home Extensions in Kent
Looking to add more space to your home without the hassle of a traditional build? Our Leka Xi Modular Extensions in Kent are the smart, energy-efficient solution. With rapid installation and minimal disruption, you can enjoy your new living space in just days – not months.

Leka Xi Modular House Extensions Get An Instant Quote!

Looking to add more space to your home without the hassle of a traditional build? Our Leka Xi Modular Extensions in Kent are the smart, energy-efficient solution. With rapid installation and minimal disruption, you can enjoy your new living space in just days – not months.
What is a Leka Xi Modular Extension?
The Leka Xi system is a ground-breaking, pre-engineered modular extension solution designed to simplify the way homeowners extend their homes. Using a lightweight, structurally robust GRP (Glass Reinforced Plastic) framework, this innovative system offers outstanding performance, energy efficiency, and design flexibility.
Unlike traditional brick-built extensions, Leka Xi installations are precision-manufactured off-site, ensuring a high-quality finish with less mess and quicker installation. We also offer a wide variety of options for you to choose from, so each installation is completely bespoke and tailored to you.
The Benefits of a Leka Xi Extension
Modular extensions offer a number of benefits over traditional brick extensions:

Rapid Installation
Usually installed in a matter of days, so no need to endure months of noise and construction chaos.

No Excavation
Ground screws eliminate the need for heavy machinery and excavation, ideal for homes with limited access.

Thermal Efficiency
Insulated with PIR & EPS to exceed UK building standards, and provide superior thermal efficiency.

Maximises Space
The wall structure of the Xi system provides up to 52% more internal floor space than traditional builds.
Tailored to Your Lifestyle
Whether you want a functional orangery style kitchen extension, a bright and airy relaxing sunroom with bifold doors, or a cosy living space, the fully customisable Leka Xi system can be adapted to suit your needs and vision, while blending seamlessly with your existing property.
Customisable Options Include:
- Extension Shape & Size
- Roof Type & Glass Options
- External Finish
- Door & Window Type & Material
- Internal Finish
- Electrical Options
External Finish Options
A standout feature of the Leka Xi modular single storey house extensions is the diverse selection of external finish options available.
Brick Slip Finish

The wide range of brick slip options can provide the classic appearance of a brick extension and be seamlessly blended with your property.
Render Finish

Your new Leka Xi extension can also be given a render finish, so it can be perfectly matched to the rest of your property.
Roof Options
As the Xi system is made by Leka, these modular extensions can be finished with either the Leka tiled roof system, or the Leka orangery roof system.
Leka Tiled Roof
The energy efficient Leka tiled warm roof system offers a great range of lightweight tiles and glass options, ideal for warm and cosy extensions.
Leka Orangery Roof
The Leka orangery roof system with glass roof lantern, can give your extension a brighter and more open feel to it, ideal for those wanting to maximise natural light.
Doors & Windows
With a great range of options, you can perfect your extension's look, feel and accessibility.
Material Options

Xi extensions can be fitted with uPVC or aluminium windows and doors.
Style Options

Choose from a wide range of door and window styles and colours.

Why Use Us For Modular Extensions in Kent?
We Only Use High Quality, Energy Efficient Products
Our Team Are Warm Roof Experts & Highly Skilled
We Have Excellent Customer Reviews and Professional Accreditation
We Guarantee Our Work & Our Prices
How Does the Leka Xi System Work?
The Leka Xi Extension’s pre-manufactured GRP base system allows for greater precision in construction, resulting in a high-quality finish that is both durable and long-lasting. This, combined with its advanced supporting joists and floor perimeter beam, ensures that the extension is sturdy and secure.
Additionally, the system’s adjustable feet and ground screw system can be adjusted perfectly allowing XI extensions to be installed on un even ground, and eliminate the need for extensive groundwork.

Ground Prep
Ground screws are used instead of foundations, avoiding the need for extensive groundwork.

Base System
After laying a membrane, the Leka Xi GRP base system is installed and PIR insulation sheets are placed between the joists.

Modular Wall System
Then the pre-manufactured lightweight Xi wall system sections are installed.

Roof
After the wall framework is in place, the chosen roof system is installed.

Insulation
Next, pre-cut, high-grade EPS insulation is fitted between the GRP framework for thermal efficiency.

Plasterboards & Flooring
Windows and doors are then added, followed by energy-efficient plasterboards and high-grade weightrock flooring.

External Finish
The chosen finish is then applied to the exterior of the structure.

Plaster & Lighting
The underside of the roof is then plastered, and lighting can be fitted.
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Leka XI Modular Extension Gallery
Check out our Leka XI gallery, to get inspiration for your single storey modular extension project.
Leka Xi Extension Video
Watch our Leka Xi installation video, to see how the system works in more detail.
Leka XI House Extension FAQs
A Leka Xi Single Storey Modular Extension is a prefabricated addition to your home, designed for swift installation. It's an innovative home extension solution that provides the additional space of a traditional build with the efficiency and precision of modern engineering.
Modular extensions are constructed off-site and delivered ready to install, greatly reducing the construction time and disruption to your home. Unlike traditional extensions, they are precision-engineered in a controlled environment, which can lead to better quality control and quicker turnaround.
Absolutely. Our Leka Xi extensions can be customized to include a variety of room types, from a bright and airy sunroom to a spacious kitchen diner extension, tailored to your specific needs and design ideas.
Yes, our Leka Xi extensions can incorporate glass elements to create a glass room extension, blending indoor comfort with the feeling of being outdoors.
Incorporating a flat roof extension with a lantern is a popular choice, offering an architectural feature that brings in more natural light and adds a modern touch to your extension.
Certainly. The Leka Xi system is perfect for creating a comfortable sunroom or a conservatory extension, providing a seamless transition between your home and garden.
A Leka Xi extension is designed to complement your existing home's style while providing additional, functional living space that is energy-efficient and built to last.
The cost varies depending on the size and specifications of the extension. Leka Xi extensions are generally cost-effective due to their modular nature and the reduced labour and time involved in construction.
Yes, the Leka Xi system is adaptable for a modern orangery extension, including designs that beautifully integrate a kitchen, offering a unique and luxurious space.
Installation times are significantly less than traditional extensions, often taking just a few weeks from start to finish, thanks to the pre-fabricated nature of the components.
We hope these FAQs serve as a starting point for customers looking to understand more about the Leka Xi Modular GRP House Extensions. If you have any further questions or to arrange your free, no-obligation quote, get in touch! Our Kent-based team is always happy to assist you.