Leka Xi Modular Garden Rooms


Leka XI GRP Modular Insulated Garden Rooms in Hampshire
Transform your home with a stunning, fully insulated, modular garden room. Constructed with the innovative Leka Xi system, these modern GRP structures, are the ideal way to add an additional living or work space to your home. Your new space can be attached to your property or freestanding. This multi-functional installation is perfect for various applications.

Leka Xi Modular Garden Rooms

Stunning, fully insulated, modular garden rooms, constructed with the innovative Leka Xi system. These modern, thermally efficient structures are the ideal way to add an additional living or work space to your home, quickly and easily.
Our Garden Room Range
The Retreat Plus
A fully customisable flat roof, timber look garden room with side canopy
What is a Leka Xi Modular GRP Garden Room?
A Leka Xi Modular GRP Garden Room is a modern, fully insulated garden building designed to create comfortable additional living space all year round. Built using an advanced Glass Reinforced Plastic (GRP) framework, the system is lightweight, durable, and engineered to deliver excellent thermal performance. Each structure is precision-manufactured off-site, helping to ensure a high-quality finish and a faster installation process.
The modular design allows every garden room to be tailored to your requirements, with a range of sizes, layouts, glazing options, and external finishes available. Whether you're creating a home office, gym, hobby room, or relaxing retreat, a Leka Xi Garden Room offers a practical, stylish, and energy-efficient solution for making the most of your outdoor space.
Outstanding Thermal Efficiency
One of the standout features of a Leka Xi Garden Room is its impressive thermal efficiency. Every element of the system has been designed to help retain heat and create a comfortable internal environment throughout the year. From the insulated floor structure to the high-performance wall and roof components, each part works together to reduce heat loss and improve energy efficiency.
The GRP framework incorporates advanced insulation materials, while insulated plasterboard and quality flooring further enhance thermal performance. Energy-efficient double glazing is also fitted as standard, helping to keep your garden room warm during the winter and comfortable during the summer. The result is a versatile space that can be enjoyed in every season.
The Benefits of a Leka Xi Garden Room
Modular garden rooms offer a number of benefits over traditional brick and timber builds:

40 Year
Leka Warranty
The Leka XI system is built to last, so all XI garden room parts come with a 40 year Leka manufacturer warranty.

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

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

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

Maximises
Usable Space
The wall structure of the Xi system provides up to 52% more internal floor space than brick builds.

10 Year
Guarantee
All of our Leka XI installations are guaranteed for 10-years, even if you sell your home to someone else.

Why Use Us For Garden Room Installation in Hampshire?
We Only Use High Quality, Energy Efficient Products
Our Team Are Leka Experts & Highly Skilled
We Have Excellent Reviews & Hold A Range of Accreditations
We Guarantee Our Work & Our Prices
Realistic Timber Look GRP Cladding Options
Choose from a wide range of realistic timber look, weather resistant, impact proof, engineered cladding options. Cladding slats can run vertically or horizontally, and are available in a range of colour options to suit your property's aesthetic.
Frontonio Vertical
Frontonio Horizontal
Solvonio Vertical
Solvonio Horizontal
How Is A Leka XI Modular Garden Room Built?
The innovative Leka XI modular GRP system, is a warm, sustainable alternative to traditional wood or brick garden rooms. Made from highly engineered, pre-fabricated modular sections, every part of the Xi system has been factory tested before delivery.
Here is our step by step guide to how Leka XI insulated garden rooms are constructed:
Modular Garden Room Ground Preparation
There is no need for extensive groundwork with the Leka Xi system, as the adjustable feet can be installed on any of the following:

Existing Concrete Hardstanding
If you already have a concrete hardstanding, this may be a suitable base.

Concrete Pads
Alternatively, basic concrete pads can provide a suitable base.

Ground Screws
Ground screws are an excellent option, especially where the ground is uneven.
The Xi System Framework
After the ground has been prepared, the main framework can be installed:

GRP Base Framework
The Leka Xi GRP base system framework is installed.

Base Insulation
Then PIR insulation sheets are placed between the joists.

GRP Wall Framework
The pre-fabricated wall sections are then installed.
The Xi System Walls
Once the basic framework is in place, the rest of the wall elements are added:

Wall Insulation
High-grade EPS insulation is fitted between the GRP framework for thermal efficiency.

Water Resistant Boards
The insulation is then covered with a layer of water resistant boards.

External Cladding
The exterior is then finished with the chosen GRP realistic look cladding.
The Xi System Roof
Once the walls are completed, the roof can be added:

GRP Roof Framework
The Leka Xi GRP roof system framework is installed.

Roof Insulation
Then insulation sheets are inserted into the framework.

Water Resistant Boards
The insulation is then covered with water resistant boards.
Final Elements
The final selected elements are then added to the structure:

Roof Covering
The selected roof finish and any glass options are added.

Doors
The chosen door options are then installed.

Windows
Along with any window options that are selected.
Finishing Touches
Lastly, the interior is finished and any optional extras are added:

Internal Boards
Floorboards are installed and energy-efficient plasterboard is added to the interior walls and ceiling.

Interior Finish
The walls and ceiling can optionally be skimmed, or finished with internal cladding.

Electrics & Lighting
Power can be run to the structure and sockets and lighting call also be added additionally.
Leka XI Gallery
Check out our Leka XI gallery, to get inspiration for your garden room project.
Leka Xi Installation Video
Watch our Leka Xi installation video, to see how the system works in more detail.
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