Leka Xi – Modular Buildings

Leka Xi modular buildings offer an eco-friendly and efficient alternative for constructing the foundation and walls of single storey extensions. Compared to conventional brick or block buildings, they are much easier and quicker to install.

The Leka Xi System Saves Time, Mess, and Stress

Conservatories and extensions built with the Leka Xi base/wall system and a Leka roof will save you time and stress. Unlike brick-built structures, Leka modular buildings can be installed in a matter of weeks rather than months. There’s no need to worry about thermal bridging or moisture absorption thanks to our lightweight and structurally sound GRP framework. Like all of our products, it meets with thermal efficiency standards.

The Xi system is meticulously engineered with prefabricated modular sections, ensuring that every component undergoes factory testing before delivery. This innovation revolutionises the construction industry and offers homeowners a multitude of advantages.

A 3d Render with a cutaway, depicting an orangery roof system with glass pitched roof, black frame windows and doors and brick walls.
An illustration showing XI ground srews as a base for XI building.

Usually set up on concrete pads or screw piles, the Leka XI offers a convenient, clean, and stress-free solution. It’s an ideal system if you are considering adding a new conservatory or single-story extension to your house.

The GRP cladding skins are available in various colours and finishes. They provide a sustainable and realistic imitation of real brickwork, stone, or timber. We can even provide external boarding that’s ready for a plasterer to apply render directly onto.


Leka Xi Benefits

  • Choose from Dwarf Walls, Full Walls, or a combination thereof.
  • Installation takes days, not weeks.
  • Reduce the need for extensive excavation, minimizing mess.
  • Experience remarkable thermal efficiency.
  • Compliant with building regulations.
  • Perfect for homeowners with limited or no rear property access.
  • Cost-effective solution.
  • Featuring precision engineering with prefabricated modular sections.
  • Requires no maintenance and offers a range of authentic brick-coloured GRP clad skins.
  • Also available with lifelike GRP timber clad skins.
  • Allows for on-site rendering or other cladding options providing maximum flexibility.

Step 1. Adjustable Feet

Depending on the ground conditions, it’s usually possible to install the supporting feet on simple concrete pads. This eliminates the need for any extensive ground preparation in most instances.

Also, the Xi feet have adjustable features, allowing them to accommodate different floor levels. Therefore, they ensure a precise and level finish upon completion.

Step 2. Ground Screws

Ground screws present an excellent choice for your Leka Xi foundation, serving as a superb alternative to traditional concrete pads.

These cutting-edge, rigorously tested products are adaptable to a range of ground conditions. And typically, they require only a day for installation. Installation companies often provide ground surveys as well, streamlining the process and saving both time and effort.

Step 3. Base System Installation

After laying an adequate membrane over the ground area, the Leka Xi’s prefabricated GRP base system is set in place. This system consists of a perimeter beam for the floor and supporting joists that incorporate advanced structural features. To enhance thermal performance, PIR insulation sheets are fitted in between these joists.

Step 4. Modular Wall System

The advantage of the Xi wall system is that it is truly modular. Each wall can be customised to specific heights and widths, tailored to meet your exact living space needs. These specifications are prefabricated into manageable lightweight sections, making installation a breeze.

Step 5. Roof Installation

Once the modular Xi framework has been installed, the next step is to fit an appropriate roof system. There are several choices available in the Leka range complement your modular building installation. These include:

  • Leka Flat Roof
  • Leka Orangery Roof
  • Leka Tiled Roof

Step 6. Insulation

Top-quality EPS insulation is precision-cut to the required dimensions and neatly fitted in between the thermally efficient GRP framework.

Step 7. Plasterboards & Flooring

After the installation of windows and doors, the interior energy-efficient plasterboards are affixed, along with high-quality weightrock flooring. This creates a finished surface that is prepared for plastering and the application of your preferred floor covering.

Step 8. External Finish

And finally, the preferred external finish is added. The Leka Xi system offers a wide range of options, including GRP finishes that mimic brick, timber, or even stone. All of the available finishes are easy to install and require minimal maintenance.

As an alternative, the unique external Leka board allows a plasterer to apply a wet render coat directly to it. And, of course, it also offers customers the flexibility to apply their own finish if desired.

Fast Installation

In most cases, the Leka Xi modular building and roof system, can be installed and finished in under a week. Say goodbye to extensive ground preparation, mess, and weeks of construction.

Find Your Local Certified Leka Modular Buildings Installer

We have a network of Leka certified installers across the Southeast. Including Kent, Sussex, Surrey & Hampshire.

So, if you’re interested in transforming your conservatory with a solid conservatory roof system from Leka, get in touch. We’ll help you find an installer.