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Cavity wall insulation

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Recticel 90mm eurowall t - 90mm, t&g

Recticel 90mm eurowall t - 90mm, t&g

£163.46
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Reacticel eurowall plus - eurowall, full

Reacticel eurowall plus - eurowall, full

£161.90
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Vermiculite 100 50l chimney - 100, or

Vermiculite 100 50l chimney - 100, or

£32.40
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Soprema cavity closer 100mm - soprema, 50/100mm

Soprema cavity closer 100mm - soprema, 50/100mm

£89.10
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Isover 100mm cws - isover, cavity

Isover 100mm cws - isover, cavity

£75.00
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Cavity wall insulation - wall,

Cavity wall insulation - wall,

£188.00
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Superglass superwall cavity - superglass,

Superglass superwall cavity - superglass,

£37.10
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100mm superglass superwall - 100mm,

100mm superglass superwall - 100mm,

£20.00
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Cavity closers multi width - cavity,

Cavity closers multi width - cavity,

£69.99
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Knauf insulation dritherm - insulation,

Knauf insulation dritherm - insulation,

£66.66
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Isover cavity wall slab - cavity,

Isover cavity wall slab - cavity,

£39.99
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Celotex kingspan cavity - kingspan,

Celotex kingspan cavity - kingspan,

£250.00
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75mm cavity wall - wall, insulation

75mm cavity wall - wall, insulation

£44.99
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Cavity wall insulation 90mm - cavity,

Cavity wall insulation 90mm - cavity,

£5.45
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Absoft 25mm cavity - 25mm, filler

Absoft 25mm cavity - 25mm, filler

£69.99
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90mm 1200x450 cavity boards - 1200x450,

90mm 1200x450 cavity boards - 1200x450,

£71.42
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Knauf earthwool dritherm - earthwool,

Knauf earthwool dritherm - earthwool,

£66.99
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Cavity closers multi - 10,

Cavity closers multi - 10,

£101.99
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Cavity closers multi - closers,

Cavity closers multi - closers,

£42.99
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Kingspan ecotherm celotex - kingspan,

Kingspan ecotherm celotex - kingspan,

£33.29
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90mm full fill cavity - t&g,

90mm full fill cavity - t&g,

£864.00
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Isover cavity wall insulation - isover,

Isover cavity wall insulation - isover,

£588.00
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Vermiculite 100l chimney - vermiculite,

Vermiculite 100l chimney - vermiculite,

£184.27
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165mm stonecor insulated - x2,

165mm stonecor insulated - x2,

£83.90
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Superglass cavity wall - cavity,

Superglass cavity wall - cavity,

£37.10
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Celotex kingspan cavity - kingspan,

Celotex kingspan cavity - kingspan,

£445.00
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£165.00
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Ursa cavity batt 1350mm x - cavity, 32

Ursa cavity batt 1350mm x - cavity, 32

£24.99
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Recticel 115mm eurowall - 115mm, eurowall+

Recticel 115mm eurowall - 115mm, eurowall+

£197.52
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Internal corner xtratherm - corner,

Internal corner xtratherm - corner,

£159.99
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Rockwool cavity batt - cavity,

Rockwool cavity batt - cavity,

£21.41
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Eurowall recticel cavity - eurowall,

Eurowall recticel cavity - eurowall,

£68.30
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Insulated dpc thermal damp - insulated,

Insulated dpc thermal damp - insulated,

£39.99
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£180.00
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Fire rated cavity - fire,

Fire rated cavity - fire,

£74.99
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Fire rated cavity closers - fire,

Fire rated cavity closers - fire,

£164.99
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£265.00
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Cavity closers multi - cavity, width

Cavity closers multi - cavity, width

£137.99
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125mm dri therm - 125mm, 37

125mm dri therm - 125mm, 37

£799.99
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Cavity closers multi width - cavity,

Cavity closers multi width - cavity,

£54.99
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Isover 100mm cws - isover, 32

Isover 100mm cws - isover, 32

£81.50
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Dritherm glass fibre - glass,

Dritherm glass fibre - glass,

£296.00
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£220.00
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Celotex kingspan cavity - kingspan,

Celotex kingspan cavity - kingspan,

£340.00
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Dritherm glassfibre cavity - glassfibre,

Dritherm glassfibre cavity - glassfibre,

£579.00
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20mm polyester wadding roll - 20mm,

20mm polyester wadding roll - 20mm,

£19.99
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Dritherm glassfibre cavity - glassfibre,

Dritherm glassfibre cavity - glassfibre,

£318.00
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115mm full fill cavity - 115mm,

115mm full fill cavity - 115mm,

£840.00
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Kingspan tw50 recticel - /,

Kingspan tw50 recticel - /,

£600.00
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Manthorpe milticor multiwidth - milticor,

Manthorpe milticor multiwidth - milticor,

£5.99
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Dritherm glass fibre cavity - glass,

Dritherm glass fibre cavity - glass,

£512.00
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£189.00
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Dritherm supaglass fibreglass - dritherm/supaglass,

Dritherm supaglass fibreglass - dritherm/supaglass,

£318.00
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140mm full fill - 140mm, t&g

140mm full fill - 140mm, t&g

£825.60
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Celotex kingspan cavity - kingspan,

Celotex kingspan cavity - kingspan,

£345.00
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Multi purpose thermal - multi-purpose,

Multi purpose thermal - multi-purpose,

£3.31
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£326.00
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100mm knauf dritherm - 100mm,

100mm knauf dritherm - 100mm,

£378.97
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£275.00
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Insulated plasterboard - insulated,

Insulated plasterboard - insulated,

£90.00
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£396.00
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Knauf insulation dritherm - knauf,

Knauf insulation dritherm - knauf,

£70.00
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Pack 50cm x 100cm - of,

Pack 50cm x 100cm - of,

£19.99
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Siderise cavity - siderise,

Siderise cavity - siderise,

£7.99
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£476.00
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£305.00
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Damcor insulated dpc - dpc, x

Damcor insulated dpc - dpc, x

£31.90
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Celotex cw4000 cavity - celotex,

Celotex cw4000 cavity - celotex,

£603.46
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75mm knauf dritherm - 37,

75mm knauf dritherm - 37,

£236.86
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36m loft insulation - 36m²,

36m loft insulation - 36m²,

£144.99
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Insulated dpc thermal damp - thermal,

Insulated dpc thermal damp - thermal,

£43.99
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Dritherm glass fibre - fibre, cavity

Dritherm glass fibre - fibre, cavity

£475.00
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Kingspan kooltherm k106 cavity - k106,

Kingspan kooltherm k106 cavity - k106,

£146.61
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£240.00
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£378.00
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£235.00
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Soprema sopratherm cw4000 - sopratherm,

Soprema sopratherm cw4000 - sopratherm,

£85.19
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Cavity closers 125mm - cavity,

Cavity closers 125mm - cavity,

£159.99
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Kingspan kooltherm k108 cavity - kooltherm,

Kingspan kooltherm k108 cavity - kooltherm,

£192.78
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Dritherm glass fibre cavity - glass,

Dritherm glass fibre cavity - glass,

£406.00
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Celotex kingspan recticel - celotex,

Celotex kingspan recticel - celotex,

£550.00
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Dritherm glass fibre cavity - glass,

Dritherm glass fibre cavity - glass,

£340.00
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£352.00
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100mm knauf dritherm - knauf,

100mm knauf dritherm - knauf,

£317.74
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Kingspan kooltherm cavity - kooltherm,

Kingspan kooltherm cavity - kooltherm,

£377.78
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Vega bond slow - vega,

Vega bond slow - vega,

£381.06
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Pack arc ec150 eco closer - pack,

Pack arc ec150 eco closer - pack,

£229.99
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Pack wall cavity foam - 6,

Pack wall cavity foam - 6,

£150.66
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Celotex kingspan cavity - kingspan,

Celotex kingspan cavity - kingspan,

£700.00
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Celotex cw4000 cavity - celotex,

Celotex cw4000 cavity - celotex,

£1454.49
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Siderise cavity - siderise,

Siderise cavity - siderise,

£3.50
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Celotex cw4000 cavity - cw4000,

Celotex cw4000 cavity - cw4000,

£1234.77
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Pack 50cm x 100cm - pack, of

Pack 50cm x 100cm - pack, of

£29.99
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Dritherm glass fibre cavity - glass,

Dritherm glass fibre cavity - glass,

£489.00
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Superglass superwall cavity - 34,

Superglass superwall cavity - 34,

£25.04
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Stewart energy xtractavac - stewart,

Stewart energy xtractavac - stewart,

£1383.70
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Looking for more cavity wall insulation?

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📊96 listings · from £3.31 · avg £264.85
⚠️ These listings were last updated more than 19 days ago. Search for fresh listings

Browse 96 cavity wall insulation listings currently in our index. Prices range from £3.31 to £1454.49, with an average of £264.85. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about cavity wall insulation →

Try this: tile backer board | celotex 25mm | jablite | thermawrap | ybs superquilt | insulation board | kingspan insulation 75mm | render insulation | polystyrene insulation 50mm | knauf

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Everything you need to know about cavity wall insulation

Whether you are looking for a brand-new or second-hand cavity wall insulation, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.31, while premium listings can reach £1454.49 — giving you a wide budget spread to work with. The average price of £264.85 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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