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Cavity insulation

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Cavity insulation for sale on largest auction and classifieds sites

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Superglass superwall cavity - superglass,

Superglass superwall cavity - superglass,

£47.50
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Recticel 90mm eurowall - recticel,

Recticel 90mm eurowall - recticel,

£163.46
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Reacticel eurowall plus full - reacticel,

Reacticel eurowall plus full - reacticel,

£161.90
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Vermiculite 100 50l chimney - 100,

Vermiculite 100 50l chimney - 100,

£48.06
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Cavity closers multi width - closers,

Cavity closers multi width - closers,

£69.99
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Premium eps wall cavity - premium,

Premium eps wall cavity - premium,

£3.30
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Cavity closers multi - 10,

Cavity closers multi - 10,

£101.99
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£266.00
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Cavity wall insulation - cavity,

Cavity wall insulation - cavity,

£188.00
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Cavity closers multi width - closers,

Cavity closers multi width - closers,

£42.99
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Isover 100mm cws cavity - 100mm,

Isover 100mm cws cavity - 100mm,

£75.00
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90mm full fill cavity - t&g,

90mm full fill cavity - t&g,

£864.00
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£265.00
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125mm dri therm insulation - 125mm, dri-therm

125mm dri therm insulation - 125mm, dri-therm

£799.99
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Eurowall recticel cavity - eurowall,

Eurowall recticel cavity - eurowall,

£68.30
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Knauf supafill cavity wall - supafill, 40

Knauf supafill cavity wall - supafill, 40

£312.70
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Vermiculite 100l chimney - 100l,

Vermiculite 100l chimney - 100l,

£184.27
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Cavity wall tie insulation - wall,

Cavity wall tie insulation - wall,

£17.99
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Cavity closers multi width - closers,

Cavity closers multi width - closers,

£137.99
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Cubic white polystyrene - white,

Cubic white polystyrene - white,

£9.15
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Unilin 100mm eurowall t - 100mm, +

Unilin 100mm eurowall t - 100mm, +

£74.54
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Knauf insulation dritherm - knauf,

Knauf insulation dritherm - knauf,

£66.66
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Siderise rh25 120 047 - siderise, rh25-120/60/047

Siderise rh25 120 047 - siderise, rh25-120/60/047

£5.99
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Cavity closers multi - 4, width

Cavity closers multi - 4, width

£54.99
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White polystyrene bead - polystyrene, filling

White polystyrene bead - polystyrene, filling

£60.24
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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,

£64.54
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Dritherm glassfibre cavity - glassfibre,

Dritherm glassfibre cavity - glassfibre,

£165.00
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Recticel 115mm eurowall - 115mm, eurowall+

Recticel 115mm eurowall - 115mm, eurowall+

£197.52
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Dritherm glassfibre cavity - glassfibre,

Dritherm glassfibre cavity - glassfibre,

£326.00
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Glass rock cavity - cavity, wall

Glass rock cavity - cavity, wall

£23.58
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Rockwool cavity batt - cavity,

Rockwool cavity batt - cavity,

£21.41
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Insulation retaining discs - retaining,

Insulation retaining discs - retaining,

£19.99
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Kingspan ecotherm celotex - ecotherm, /

Kingspan ecotherm celotex - ecotherm, /

£87.14
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Fire rated cavity closers - cavity,

Fire rated cavity closers - cavity,

£74.99
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Celotex kingspan cavity - kingspan,

Celotex kingspan cavity - kingspan,

£199.00
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Knauf insulation dritherm - insulation,

Knauf insulation dritherm - insulation,

£80.00
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Absoft 25mm cavity filler - 25mm,

Absoft 25mm cavity filler - 25mm,

£69.99
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Knauf supafil cavity - knauf,

Knauf supafil cavity - knauf,

£21.50
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Superglass superwall cavity - superwall,

Superglass superwall cavity - superwall,

£25.04
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£360.00
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Siderise cavity - siderise,

Siderise cavity - siderise,

£7.99
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Manthorpe milticor multiwidth - manthorpe,

Manthorpe milticor multiwidth - manthorpe,

£5.99
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Cavity wall tie - cavity, insulation

Cavity wall tie - cavity, insulation

£16.15
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Dritherm glass fibre - glass, cavity

Dritherm glass fibre - glass, cavity

£296.00
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Superglass cavity wall - cavity,

Superglass cavity wall - cavity,

£37.10
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£365.00
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Jablite polysyrene cavity - jablite,

Jablite polysyrene cavity - jablite,

£21.99
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75mm cavity wall insulation - 75mm,

75mm cavity wall insulation - 75mm,

£44.99
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Fire rated cavity - fire,

Fire rated cavity - fire,

£164.99
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Timco metal insulation cavity - timco,

Timco metal insulation cavity - timco,

£17.07
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Ursa cavity batt - batt, 1350mm

Ursa cavity batt - batt, 1350mm

£24.99
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Timco plastic insulation - plastic,

Timco plastic insulation - plastic,

£15.40
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140mm full fill cavity - 140mm,

140mm full fill cavity - 140mm,

£825.60
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Insulation retaining discs - insulation, red

Insulation retaining discs - insulation, red

£17.95
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100mm knauf dritherm - dritherm, 32

100mm knauf dritherm - dritherm, 32

£378.97
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Isover cavity wall - cavity,

Isover cavity wall - cavity,

£39.99
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Timco 85mm insulation - 85mm,

Timco 85mm insulation - 85mm,

£21.11
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Pack 50cm x 100cm - pack, of

Pack 50cm x 100cm - pack, of

£19.99
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20mm polyester wadding roll - 20mm,

20mm polyester wadding roll - 20mm,

£1.99
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Celotex kingspan cavity - kingspan,

Celotex kingspan cavity - kingspan,

£220.00
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250 80mm cavity wall - ,

250 80mm cavity wall - ,

£20.20
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115mm full fill - 115mm, t&g

115mm full fill - 115mm, t&g

£840.00
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Cavity wall tie insulation - tie,

Cavity wall tie insulation - tie,

£11.99
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Celotex kingspan cavity - celotex,

Celotex kingspan cavity - celotex,

£325.00
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Insulated plasterboard - plasterboard, p.i.r

Insulated plasterboard - plasterboard, p.i.r

£103.00
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Timco metal insulation cavity - metal,

Timco metal insulation cavity - metal,

£8.11
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Isover cavity wall - cavity,

Isover cavity wall - cavity,

£588.00
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Insulated dpc thermal damp - insulated,

Insulated dpc thermal damp - insulated,

£39.99
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Dritherm supaglass fibreglass - dritherm/supaglass,

Dritherm supaglass fibreglass - dritherm/supaglass,

£368.00
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Timco metal insulation - insulation, cavity

Timco metal insulation - insulation, cavity

£12.00
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Shell dry cavity wall - shell,

Shell dry cavity wall - shell,

£5.45
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Timco ziel plast insulation - timco, ziel-plast

Timco ziel plast insulation - timco, ziel-plast

£8.38
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Damcor insulated dpc 225mm 6 - dpc,

Damcor insulated dpc 225mm 6 - dpc,

£31.90
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£275.00
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Celotex cw4000 cavity - cw4000,

Celotex cw4000 cavity - cw4000,

£603.46
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Cavity wall tie insulation - tie,

Cavity wall tie insulation - tie,

£9.36
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Dritherm glassfibre cavity - dritherm,

Dritherm glassfibre cavity - dritherm,

£189.00
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Dritherm glass fibre cavity - glass,

Dritherm glass fibre cavity - glass,

£512.00
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Large extratherm cavity wall - cavity,

Large extratherm cavity wall - cavity,

£26.70
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Dritherm glassfibre cavity - glassfibre,

Dritherm glassfibre cavity - glassfibre,

£476.00
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Timco ziel plast insulation - ziel-plast,

Timco ziel plast insulation - ziel-plast,

£8.13
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Blue cavity wall tie - wall,

Blue cavity wall tie - wall,

£4.00
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Insulation retaining discs - retaining,

Insulation retaining discs - retaining,

£10.99
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Siderise cavity - siderise,

Siderise cavity - siderise,

£3.50
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Soudal expanding foam - expanding,

Soudal expanding foam - expanding,

£13.64
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Timco large metal insulation - metal,

Timco large metal insulation - metal,

£9.36
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250 80mm cavity wall tie - 250,

250 80mm cavity wall tie - 250,

£15.00
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Kingspan tw50 recticel - tw50, /

Kingspan tw50 recticel - tw50, /

£124.00
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Red cavity wall tie insulation - cavity,

Red cavity wall tie insulation - cavity,

£6.50
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Internal corner xtratherm - corner,

Internal corner xtratherm - corner,

£159.99
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Pcs ceiling support wire - 90,

Pcs ceiling support wire - 90,

£16.25
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Damp cavity wall insulation

Damp cavity wall insulation

£1.17
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Siderise cavity - siderise,

Siderise cavity - siderise,

£83.94
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Glass rock mineral - rock, cavity

Glass rock mineral - rock, cavity

£23.58
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36m loft insulation itch - 36m²,

36m loft insulation itch - 36m²,

£144.99
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📊96 listings · from £1.17 · avg £140.82

Browse 96 cavity insulation listings currently in our index. Prices range from £1.17 to £864, with an average of £140.82. 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 insulation →

Try this: insulation boards 25mm | floor insulation | insulated board | loft insulation 200mm | celotex insulation boards 100mm | rockwool loft insulation | foil insulation | celotex 100mm | seconds insulation boards | celotex 50mm

Shop by budget

< £25 £25 – £50 £50 – £100 £100 – £200 £200 – £500 > £500

Everything you need to know about cavity insulation

Whether you are looking for a brand-new or second-hand cavity 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 £1.17, while premium listings can reach £864 — giving you a wide budget spread to work with. The average price of £140.82 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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