Home Extensions

We can help you to transform customers homes with a Next Generation Home Extension using the most advanced, energy-efficient building system available, to create a comfortable and affordable living space. Our Guardian extensions are fabricated off site and then delivered and erected within two to three weeks, saving homeowners the upheaval of having builders on site for months on end.

Available in a variety of styles and finishes, our Guardian extensions are individually tailored to suit individual needs. By combining Kingspan Tek-Panels with the Guardian Warm Roof System, you can offer your customers an affordable alternative to a traditional brick-built structures.

Being of modular construction, Guardian extensions come with insulated roof and walls, double-glazed windows and strong, steel-reinforced structures,  plus you can match existing brick, render or stone walls and roof tiles.

Our Partnerships

We work with the best quality brands, giving you peace of mind with materials you can trust.

Product Spotlight

A unique and innovative home extension solution for your customers.

Choice of tiles or slates

Ridge Cappings to match roof tiles or slates

Standard rainwater systems

Breathable Guardian waterproof membrane

Exterior grade plywood

3 layers of high performance rigid Kingspan insulation board

(125mm) U-value 0.18 W/m.K (England & Wales) and 0.15 W/m.k (Scotland)

Ventilated roof eliminates condensation

Choice of external finish

Kingspan TEK Building System

Internal flooring

Velux Roof Windows (Extensive Range)

Structural pre-engineered frame

SIP Panels

Structural Insulated Panel (SIP) is made from a sandwich of two layers of stressed skin and one layer of insulation.

The stressed skin layers make it exceptionally strong, whilst producing thinner overall wall thicknesses than other forms of construction. With no need for cavity or internal insulation, structural insulated panels can provide a very fast way of constructing very efficient walls with u-values as low as 0.15, without additional insulation.


Our extensions utilise the Kingspan TEK® Building System for the walls, which has environmental sustainability at its core.

The insulation layer is not interrupted by repeating stud work, so there is less repeating thermal bridging, yielding better thermal performance. The SIP panels are certified to BES 6001 (Framework Standard for the Responsible Sourcing of Construction Products) as `Very Good’.

For roofs we use the Guardian Warm Roof system, which is fully tested and approved to all thermal and structural standards. This high performance insulated roof system comprises of a pre-engineered lightweight frame, two layers of rigid insulation board, internal insulated plasterboard, exterior grade plywood and a vapour membrane.

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