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    Our branches are now closed for Christmas, however you can still shop online for deliveries from 2nd January 2025 onwards.

    Any orders placed on the website during closed hours will be processed on our return (read more..)

    Cavity Insulation

    This high-performance cavity insulation product is made from mineral wool and designed to fit snugly between the walls of your home or business, effectively preventing heat loss and improving energy efficiency.  Insulation boards and rolls are available for delivery or can be collected in store in our PeterboroughHuntingdon and Corby branches.If you have any questions please visit your local branch for further advice.

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    Knauf DriTherm 37 Cavity Slab Insulation 50mm

    Knauf DriTherm 37 Cavity Slab Insulation 50mm is a water-repellent Glass Mineral Wool slab, designed for use in external full-fill masonry cavity walls, that offers excellent thermal performance.
    Stock Availability: In stock
    £34.98 incl tax

    2400x1200x100mm EPS70 SDN Expanded Foam Polystyrene insulation

    2400x1200x100mm EPS70 SDN Polystyrene insulation sheets comprise of expandable beads of polystyrene which are pre-foamed and fused together in a steam-heated mould under pressure.
    Stock Availability: In stock
    £32.50 incl tax

    Knauf 100mm OmniFit Insulation Slab 35 1200x400mm (2.88m2)

    OmniFit® Slab 35 is a Glass Mineral Wool slab, designed for use in multiple applications in both timber and steel frame construction, that offers excellent thermal and acoustic performance. It is non-combustible with the best possible Euroclass A1 reaction.
    Stock Availability: In stock
    £43.20 incl tax

    Knauf DriTherm 37 Cavity Slab Insulation 85mm

    Knauf DriTherm 37 Cavity Slab Insulation 85mm is a water-repellent Glass Mineral Wool slab, designed for use in external full-fill masonry cavity walls, that offers excellent thermal performance.
    Stock Availability: In stock
    £29.99 incl tax

    Knauf DriTherm 37 Cavity Slab Insulation 100mm

    Knauf DriTherm 37 Cavity Slab Insulation 100mm - is a water-repellent Glass Mineral Wool slab, designed for use in external full-fill masonry cavity walls, that offers excellent thermal performance.
    Stock Availability: In stock
    £52.50 incl tax

    Knauf 85mm DriTherm 32 Ultimate Cavity Slab

    Knauf 85mm DriTherm 32 Ultimate Cavity Slab stand at the forefront of cavity batt insulation solutions. These slabs, crafted from glass mineral wool, offer a semi-rigid, non-combustible structure that can seamlessly "knit together." Designed for filling the cavity between external masonry walls, they create a superbly insulated structure
    Stock Availability: In stock
    £43.99 incl tax

    Knauf 100mm DriTherm 32 Ultimate Cavity Slab

    Knauf 100mm DriTherm 32 Ultimate Cavity Slab stand at the forefront of cavity batt insulation solutions. These slabs, crafted from glass mineral wool, offer a semi-rigid, non-combustible structure that can seamlessly "knit together." Designed for filling the cavity between external masonry walls, they create a superbly insulated structure
    Stock Availability: In stock
    £59.99 incl tax

    Knauf 125mm DriTherm 32 Ultimate Cavity Slab

    Knauf 125mm DriTherm 32 Ultimate Cavity Slab stand at the forefront of cavity batt insulation solutions. These slabs, crafted from glass mineral wool, offer a semi-rigid, non-combustible structure that can seamlessly "knit together." Designed for filling the cavity between external masonry walls, they create a superbly insulated structure
    Stock Availability: In stock
    £50.99 incl tax

    Knauf 150mm DriTherm 32 Ultimate Cavity Slab

    Knauf 150mm DriTherm 32 Ultimate Cavity Slab stand at the forefront of cavity batt insulation solutions. These slabs, crafted from glass mineral wool, offer a semi-rigid, non-combustible structure that can seamlessly "knit together." Designed for filling the cavity between external masonry walls, they create a superbly insulated structure
    Stock Availability: In stock
    £59.99 incl tax

    Knauf 100mm Acoustic Insulation Roll

    Knauf 100mm Acoustic Insulation Roll is a Glass Mineral Wool roll, designed for use in internal wall and floor applications, to offer sound absorption and noise reduction properties.
    Stock Availability: In stock
    £92.40 incl tax

    Mannok Therm Pir Foil Cavity Insulation Board 1200 X 450 X 75Mm

    Mannok Therm QW Cavity Wall PIR Insulation (Previously Quinn Therm) is a high performance, fibre free board, with a rigid thermoset insulation core and faced on both sides with a low emissivity composite foil facing, for use in partial fill cavity wall applications.
    Stock Availability: In stock
    £16.02 incl tax

    Mannok Full Fill Iso PIR Cavity Insulation 1200x450x90mm 2.16m2pk - Pack 4

    Mannok Iso Cavity Full Fill Cavity Wall Insulation - 1200x450x90mm Pack 4 - superior full fill cavity wall insulation that combines ease of construction with all the benefits of full fill PIR.
    Stock Availability: In stock
    £61.99 incl tax