Shop external wall insulation boards with us for building refurbishment, new-build construction and façade improvement projects. Our range includes insulation products for suitable external wall insulation (EWI) applications, helping improve a building’s thermal performance when selected and installed as part of a compatible system.

Explore different insulation materials, including expanded polystyrene (EPS), extruded polystyrene (XPS) and mineral wool boards, alongside specialist products for external wall and façade systems. Compare available thicknesses, dimensions and technical specifications to find options that suit your project requirements.

EPS, XPS and Mineral Wool Insulation

Different external wall insulation materials offer different properties and applications. EPS insulation boards are lightweight and commonly used in compatible render systems. XPS boards are available in different grades and may be suitable for specific applications where their moisture resistance and compressive strength are relevant. Mineral wool insulation products offer different thermal, acoustic and fire-performance characteristics depending on the product specification.

The right choice depends on the building construction, required thermal performance, fire-safety requirements and the intended external finish. Always check the manufacturer's datasheet and system approval before selecting a board.

Insulation Boards for Render and Façade Systems

External wall insulation is usually installed as part of a complete system. Depending on the design, this may include insulation boards, adhesive, mechanical fixings, reinforcement mesh, basecoat and a compatible render finish. Other façade systems may use different finishes or fixing arrangements.

For reliable system performance, use products approved for the intended application and follow the manufacturer's installation instructions. Check compatibility between insulation, fixings and finishing materials before ordering.

Buy External Wall Insulation Boards Online

We supply insulation and building materials for trade professionals, contractors and homeowners across the UK. Browse the available products, compare technical details and explore our EPS insulation, XPS insulation, mineral wool and render-carrier board categories.

Need help selecting a suitable product or calculating quantities? Contact our team for product guidance and a quotation. Trade pricing and quantity discounts are available on selected orders.