Our specialist stores
Our specialist stores
Wall Insulation
Search our extensive range to find the high-quality wall insulation you need to minimise rising energy bills while also making your home a much more comfortable place to live all year round.
Effective home insulation can help you save hundreds of pounds on heating bills every year. This means it won’t take long to start profiting from your investment.
But what is the best insulation for walls around your particular home? How do you choose?
Reach out to our friendly and supportive team on 0203 318 7316 for an expert recommendation. Or check out our essential insulation guide here:
Read more about Wall Insulation.
Wall Insulation Range
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30mm Recticel Eurothane GP PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
30mm Recticel Eurothane GP is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Recticel is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£17.33£20.80 Ex VATInc VAT£6.02£7.22 Per M2 Add to cart -
37.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm Pack of 21 (60.48m2)
25mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
£1,429.07£1,714.88 Ex VATInc VAT£23.63£28.36 Per M2 Add to cart -
37.5mm Recticel Eurothane PL Insulated Plasterboard 2400mm x 1200mm (8′ x 4′) 2.88m2
37.5mm Recticel Eurothane PL pairs high-performance insulation with plasterboard, making homes warmer with a sleek, easy-fit design.
£42.78£51.34 Ex VATInc VAT£14.85£17.82 Per M2 Add to cart -
40mm Celotex PIR Insulated Plasterboard 1200mm x 2400mm + 12.5mm P/B 2.88m2
40mm Celotex PL4040 PIR Insulated Plasterboard is it is suitable for use in roof and internal wall lining applications. Celotex Insulated Plasterboard is a high performance, easy to install PIR insulation board with a paper facing, laminated to a piece of 12.5mm tapered edge plasterboard.
£54.68£65.62 Ex VATInc VAT£18.99£22.79 Per M2 Add to cart -
40mm Celotex TB4040 PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
40mm Celotex TB4040 is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Celotex is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£21.28£25.54 Ex VATInc VAT£7.39£8.87 Per M2 Add to cart -
40mm Ecotherm Eco-Versal PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
40mm Ecotherm Eco-Versal is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Ecotherm Eco-Versal is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£21.21£25.45 Ex VATInc VAT£7.36£8.83 Per M2 Add to cart -
40mm Jablite HP+ 70E External Wall Insulation Board 1200mm x 600mm (4′ X 2′) Pack of 15 (10.80m2)
40mm Jablite HP+ 70E External Wall Insulation Board is designed to enhance thermal efficiency for external walls. It can be bonded or mechanically fixed, providing reliable insulation solution.
£54.58£65.50 Ex VATInc VAT£5.05£6.06 Per M2 Add to cart -
40mm Recticel Eurothane GP PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
40mm Recticel Eurothane GP is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Recticel is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£20.29£24.35 Ex VATInc VAT£7.05£8.46 Per M2 Add to cart -
40mm SuperFOIL SF19BB Breathable Thermal Insulation Roll 1.2m x 10m (12m2)
SF19BB is SuperFOIL’s first fully breathable insulation for use in roofs and walls. Breathable Insulation save on time and materials by providing both the secondary rain barrier breathable membrane and insulation at the same time, this can reduce installation time and save on extra battens.
£100.28£120.34 Ex VATInc VAT£8.36£10.03 Per M2 Add to cart -
42.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm Pack of 18 (51.84m2)
30mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
£1,263.40£1,516.08 Ex VATInc VAT£24.37£29.24 Per M2 Add to cart -
45mm Multi-Layer SuperFOIL SF19+Insulation Roll 1.2m x 10m (12m2)
45mm SF19+ multi-layer foil insulation is an advanced version of SuperFOIL’s favourite reflective insulation SF19 for use in roofs and walls for both new build and retrofit applications.
£95.86£115.03 Ex VATInc VAT£7.99£9.59 Per M2 Add to cart -
45mm Multi-Layer SuperFOIL SF19+Insulation Roll 1.5m x 10m
45mm SF19+ multi-layer foil insulation is an advanced version of SuperFOIL’s favourite reflective insulation SF19 for use in roofs and walls for both new build and retrofit applications.
£116.51£139.81 Ex VATInc VAT Add to cart -
50mm Celotex CW4050 Cavity Wall Insulation Board 1200mm x 450mm 5.94m2 Pack of 11 (5.94m2)
50mm Celotex CW4050 Cavity Wall Insulation Board is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing.
£68.25£81.90 Ex VATInc VAT£11.49£13.79 Per M2 Add to cart -
50mm Celotex GA4050 PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
50mm Celotex GA4050 is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Celotex is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£22.10£26.52 Ex VATInc VAT£7.67£9.20 Per M2 Add to cart -
50mm Celotex PIR Insulated Plasterboard 1200mm x 2400mm + 12.5mm P/B 2.88m2
50mm + 12.5mm Celotex PL4050 PIR Insulated Plasterboard is it is suitable for use in roof and internal wall lining applications. Celotex Insulated Plasterboard is a high performance, easy to install PIR insulation board with a paper facing, laminated to a piece of 12.5mm tapered edge plasterboard.
£58.58£70.30 Ex VATInc VAT£20.34£24.41 Per M2 Add to cart -
50mm Ecotherm Eco-Versal PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
50mm Ecotherm Eco-Versal is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Ecotherm Eco-Versal is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£22.87£27.44 Ex VATInc VAT£7.94£9.53 Per M2 Add to cart -
50mm Expanded Polystyrene EPS100 Insulation Board 2400mm x 1200mm (8′ x 4′) Pack of 12 (34.56m2)
50mm EPS100, often known as Expanded Polystyrene, is a lightweight foam product produced from tiny polystyrene beads. Due to its high thermal value and simplicity of usage, it is commonly used as one of the most favoured insulation materials in construction.
£164.16£196.99 Ex VATInc VAT£4.75£5.70 Per M2 Add to cart -
50mm Expanded Polystyrene EPS150 Insulation Board 2400mm x 1200mm (8′ x 4′) Pack of 12 (34.56m2)
50mm EPS150, often known as Expanded Polystyrene, is a lightweight foam product produced from tiny polystyrene beads. Due to its high thermal value and simplicity of usage, it is commonly used as one of the most favoured insulation materials in construction.
Non- refundable.
£200.11£240.13 Ex VATInc VAT£5.79£6.95 Per M2 Add to cart -
50mm Isover Acoustic Partition Insulation Roll – Glass Mineral Wool 15.60m2
50mm Isover Acoustic Partition Insulation Roll is a glass mineral wooldesigned to reduce sound transmission between walls and floors, creating quieter and more comfortable spaces.
£44.05£52.86 Ex VATInc VAT£2.82£3.38 Per m2 Add to cart -
50mm Jablite HP+ 70E External Wall Insulation Board 1200mm x 600mm (4′ X 2′) Pack of 12 (8.64m2)
50mm Jablite HP+ 70E EWI External Wall Insulation Board 1200mm x 600mm (4′ X 2′) sold in Pack of 12.
£54.86£65.83 Ex VATInc VAT£6.35£7.62 Per Sheet Add to cart -
50mm Kingspan Kooltherm K108 Cavity Board Insulation 1200mm x 450mm Pack of 10 (5.40m2)
50mm Kingspan Kooltherm K108 partial fill cavity wall board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls.
£114.96£137.95 Ex VATInc VAT£21.29£25.55 Per M2 Add to cart -
50mm Kingspan Kooltherm K112 Framing Insulation Board 2400mm x 1200mm Pack of 6 (17.28m2)
50mm Kingspan Kooltherm K112 Framing Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is used to insulate timber and steel framing systems with thermal conductivity of just 0.019 W/mK across all thicknesses.
£429.93£515.92 Ex VATInc VAT£24.88£29.86 Per M2 Add to cart -
50mm Kingspan Kooltherm K5 External Wall Insulation Board 1200mm x 600mm Pack of 10 (7.20m2)
50mm Kingspan Kooltherm K5 External Wall Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core used as external insulation for masonry walls.
£147.01£176.41 Ex VATInc VAT£20.42£24.50 Per M2 Add to cart -
50mm Knauf Acoustic Insulation Roll – Glass Mineral Wool 16.2m2
50mm Acoustic Insulation Roll from Knauf is a Glass Mineral Wool roll, designed for use in internal wall and floor applications, to offer sound absorption and noise reduction properties.
£43.33£52.00 Ex VATInc VAT£2.67£3.20 Per m2 Add to cart -
Buy in Bulk & Save
1-20 21+ £58.03£69.64 £56.87£68.24 
50mm Mannok PIR Insulated Plasterboard 1200mm x 2400mm + 12.5mm P/B 2.88m2
Mannok Therm Laminate-Kraft / MLK PIR 50mm + 12.5mm PIR Insulated plasterboard is a high performance, fibre-free insulated board. Mannok Therm Laminate-Kraft / MLK PIR has a kraft paper facing on one side and plasterboard bonded to the other side.
£58.03£69.64 Ex VATInc VAT£20.15£24.18 Per M2 Add to cart -
50mm ODE Acoustic Roll Insulation 12m2 Roll
50mm ODE Insulation Acoustic Roll is designed to reduce sound transmission, making it an ideal solution for creating quieter indoor environments. Its flexible and simple-to-install design effectively absorbs sound, making it perfect for both residential and commercial spaces.
£31.07£37.28 Ex VATInc VAT£2.59£3.11 Per m2 Add to cart -
50mm Recticel Eurothane GP PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
50mm Recticel Eurothane GP is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Recticel is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£22.20£26.64 Ex VATInc VAT£7.71£9.25 Per M2 Add to cart -
50mm Recticel Eurowall Partial Cavity Wall Insulation Board 1200mm x 450mm Pack of 20 (10.80m2)
50mm Recticel Eurowall Partial Cavity is an advanced thermal insulation panel tailored for use in cavity wall systems, delivering exceptional energy efficiency and robust performance.
£137.84£165.41 Ex VATInc VAT£12.76£15.31 Per M2 Add to cart -
50mm Rockwool RWA45 Acoustic Insulation Slab 1200 x 600mm 6.48m2 Pack
50mm Rockwool RWA45 has been developed for thermal, acoustic and fire performance in a range of construction types. It is suitable for applications on partition walls, ceilings, floors and roofs.
£27.94£33.53 Ex VATInc VAT£4.31£5.17 Per m2 Add to cart -
50mm Superglass Acoustic Partition Roll Insulation 15.60m2 Roll
50mm Superglass Acoustic Partition Roll (APR) is a lightweight, non-combustible glass mineral wool insulation roll. It is suitable for the following applications: internal walls and floors, timber and metal stud partitions, drylining systems and separating walls and floors. Manufactured at a minimum density of 10kg/m³.
£45.14£54.17 Ex VATInc VAT£2.89£3.47 Per m2 Add to cart -
50mm URSA Acoustic Partition Roll Insulation 14.4m2 Roll
50mm URSA Acoustic Roll is a lightweight, non-combustible, unfaced glass mineral wool product for use as acoustic insulation in timber or metal framed internal partition walls, timber or metal framed separating walls and timber separating floors.
£40.78£48.94 Ex VATInc VAT£2.83£3.40 Per m2 Add to cart -
52.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm Pack of 15 (43.20m2)
40mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
£1,115.19£1,338.23 Ex VATInc VAT£25.81£30.97 Per M2 Add to cart -
52.5mm Recticel Eurothane PL Insulated Plasterboard 2400mm x 1200mm (8′ x 4′) 2.88m2
52.5mm Recticel Eurothane PL pairs high-performance insulation with plasterboard, making homes warmer with a sleek, easy-fit design.
£50.52£60.62 Ex VATInc VAT£17.54£21.05 Per M2 Add to cart -
57.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm Pack of 14 (40.32m2)
45mm + 12.5mm Kingspan Kooltherm K118 Insulated Plasterboard is a premium performance insulation with a fibre-free rigid thermoset phenolic core. It is an insulated plasterboard for mechanically fixed and adhesively bonded insulated dry-lining th a thermal conductivity of just 0.019 W/mK across all thicknesses.
£1,113.58£1,336.30 Ex VATInc VAT£27.62£33.14 Per M2 Add to cart -
60mm Celotex GA4060 PIR Insulation Board 2400mm x 1200mm (8′ x 4′) 2.88m2
60mm Celotex GA4060 is a polyisocyanurate (PIR) insulation core with composite aluminium foil facings on both sides. Celotex is a multi-purpose insulation board suitable for use in pitched roofs, ceilings, floors and walls.
£26.72£32.06 Ex VATInc VAT£9.28£11.14 Per M2 Add to cart -
60mm Celotex PIR Insulated Plasterboard 1200mm x 2400mm + 12.5mm P/B 2.88m2
60mm + 12.5mm Celotex PL4060 PIR Insulated Plasterboard is it is suitable for use in roof and internal wall lining applications. Celotex Insulated Plasterboard is a high performance, easy to install PIR insulation board with a paper facing, laminated to a piece of 12.5mm tapered edge plasterboard.
£70.33£84.40 Ex VATInc VAT£24.42£29.30 Per M2 Add to cart
