Introducing the LEKA Xi Modular Extension System
The Fast, Energy-Efficient Alternative to a Traditional Extension
If you’re looking to expand your home, the LEKA Xi Modular Extension System offers a modern, hassle-free solution. Whether you’re replacing an old conservatory with something more usable year-round, or starting from scratch to add extra space, the LEKA Xi is designed to transform your home—quickly and efficiently.
This innovative, factory-prepared system allows us to install your new extension in a matter of days, reducing the disruption and mess associated with traditional brick-and-block building methods.
With exceptional thermal performance and a range of stylish finishes to suit your home, the LEKA Xi could be the perfect solution for your new living space, dining area, or home office.
Why Choose the LEKA Xi System?
Faster Installation – Minimal Disruption to Your Home
- Traditional home extensions can take weeks, sometimes months, to complete. The LEKA Xi Modular System is prefabricated off-site and typically installed in as little as 2-5 days, depending on the size and complexity. This means:
- Less noise, mess, and inconvenience.
- No lengthy wait for brickwork or drying times.
- A faster route to enjoying your new space.
- Energy Efficient – Comfortable All Year Round
- Thanks to advanced insulation and innovative construction, the LEKA Xi System is designed to exceed current Building Regulation requirements. It eliminates cold bridging and prevents moisture absorption, ensuring your new extension is:
- Warm in winter – No more draughts or chilly corners.
- Cool in summer – A comfortable place to relax, even in hot weather.
- Cost-effective to heat – Reduced energy bills compared to older conservatories or poorly insulated extensions.
Customisable Design – The LEKA Xi is Tailored to Your Home
Every home is different, and the LEKA Xi can be tailored to complement your property’s style:
- Choose from a range of external finishes: GRP cladding that mimics brick, stone, or timber, or external boarding ready for on-site rendering to match your home.
- Combine with LEKA’s Warm Roof system for a seamless, fully insulated extension.
- Windows, doors, and rooflights can be incorporated into your design for natural light and ventilation.
Cost-Effective & Sustainable
Prefabricated modular systems like the LEKA Xi are not only faster to install but also more cost-effective. Less labour time on-site reduces overall costs.
Additionally, the materials used are lightweight, durable, and designed to offer long-term performance with minimal maintenance, making it a more sustainable choice than traditional brickwork builds.
Find Out More
Thinking about a LEKA Xi Modular Extension?
Tell us a little about your space, and we’ll be in touch.
FAQs
A LEKA Xi modular extension can typically be installed, plastered, and painted within just one week for a standard size like 3m x 5m, making it significantly faster than a traditional brick-built extension.
In many cases, planning permission is not required as LEKA Xi extensions often fall within permitted development rights. Generally:
Attached houses can extend up to 3 metres from the rear.
Detached houses can extend up to 4 metres from the rear.
However, always check with your local planning authority, as rules vary depending on your location. Homes in conservation areas or Areas of Outstanding Natural Beauty (AONB) often require specific permissions.
Yes, the LEKA Xi system is built with high-performance insulated walls, roof, and base, making it thermally efficient – warm in winter and cool in summer. It creates a comfortable, all-season living space unlike older conservatories.
Absolutely. You can choose from various exterior finishes to complement your home, including:
- Brick cladding
- Render
- Stone effect
Windows, doors, rooflights, and internal finishes can all be tailored to suit your personal style.
The LEKA Xi system features a lightweight modular foundation system, meaning:
- No deep concrete footings are required.
- Suitable for sites with restricted access or difficult ground conditions.
- Engineered to Building Control standards for long-term durability.
Yes. The LEKA Xi system is pre-approved for Building Control compliance under UK Building Regulations. Upon completion, your installation will be certified for Building Control approval.