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Under floor insulation

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Under floor insulation for sale on largest auction and classifieds sites

Home / Insulation Materials / Under floor insulation refurbished & used for sale | For Sale UK
Tile backer board 6mm - tile,

Tile backer board 6mm - tile,

£4.99
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Tile backer boards - tile,

Tile backer boards - tile,

£17.39
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Xps insulation board under - xps,

Xps insulation board under - xps,

£24.95
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Xps insulation boards - insulation, for

Xps insulation boards - insulation, for

£116.99
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Xps insulation boards for - insulation,

Xps insulation boards for - insulation,

£1.99
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Xps insulation boards 1200 - xps,

Xps insulation boards 1200 - xps,

£20.79
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Xps insulation boards - boards, 6mm

Xps insulation boards - boards, 6mm

£13.99
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Tile backer board - tile, insulation

Tile backer board - tile, insulation

£10.99
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Xps insulation board for - xps,

Xps insulation board for - xps,

£12.99
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Tile backer board - 6mm, 10mm

Tile backer board - 6mm, 10mm

£4.99
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Kingspan thermawall multi - kingspan,

Kingspan thermawall multi - kingspan,

£32.79
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50mm xps insulation - xps, boards

50mm xps insulation - xps, boards

£15.49
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6mm 10mm underfloor under - &,

6mm 10mm underfloor under - &,

£31.65
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10x cement coated underfloor - 10x,

10x cement coated underfloor - 10x,

£129.99
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Underfloor heating edge - underfloor,

Underfloor heating edge - underfloor,

£17.50
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Waterproof membrane wet room - wet,

Waterproof membrane wet room - wet,

£35.99
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40mm xps insulation boards - 40mm,

40mm xps insulation boards - 40mm,

£13.49
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Underfloor heating retro edge - underfloor,

Underfloor heating retro edge - underfloor,

£28.00
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Under tile insulation - tile, boards

Under tile insulation - tile, boards

£1.58
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Underfloor heating edge - heating,

Underfloor heating edge - heating,

£600.00
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30mm xps insulation boards - insulation,

30mm xps insulation boards - insulation,

£11.99
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Underlay insulation for wood - underlay,

Underlay insulation for wood - underlay,

£41.99
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Ufh superfoil underfloor - ufh,

Ufh superfoil underfloor - ufh,

£21.14
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10m roll under bonnet heat - roll,

10m roll under bonnet heat - roll,

£11.99
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Underfloor heating retro - underfloor,

Underfloor heating retro - underfloor,

£16.00
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Xps insulation board for - xps,

Xps insulation board for - xps,

£7.79
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Xps boards for - xps,

Xps boards for - xps,

£11.35
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Insulation boards thermal - insulation, xps

Insulation boards thermal - insulation, xps

£1.75
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30x sheets peacemat - ®, car

30x sheets peacemat - ®, car

£39.99
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Van insulation foil foam - insulation,

Van insulation foil foam - insulation,

£55.59
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Peacemat car sound - xr,

Peacemat car sound - xr,

£22.99
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Car sound deadening peacemat - car,

Car sound deadening peacemat - car,

£22.99
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Xps insulation board - board, for

Xps insulation board - board, for

£5.99
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Insulation board xps - insulation,

Insulation board xps - insulation,

£129.99
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Underfloor insulation heating - insulation,

Underfloor insulation heating - insulation,

£24.95
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Xps insulation boards - insulation,

Xps insulation boards - insulation,

£5.25
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6mm foil backed - backed, adhesive

6mm foil backed - backed, adhesive

£28.99
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Water underfloor heating - water,

Water underfloor heating - water,

£669.99
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Underfloor heating edge - heating, /

Underfloor heating edge - heating, /

£18.00
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Yelofon hd5 under - hd5, screed

Yelofon hd5 under - hd5, screed

£78.70
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Xps insulation boards - boards, for

Xps insulation boards - boards, for

£1.75
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25mm multi purpose - multi,

25mm multi purpose - multi,

£57.99
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Adept white underfloor heating - underfloor,

Adept white underfloor heating - underfloor,

£22.99
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5mm under floor closed cell - floor,

5mm under floor closed cell - floor,

£6.00
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Underfloor heating self - underfloor,

Underfloor heating self - underfloor,

£15.99
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Xps boards underlay thermal - underlay,

Xps boards underlay thermal - underlay,

£9.39
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Xps insulation board for - xps,

Xps insulation board for - xps,

£13.99
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Impact plus thermal - impact,

Impact plus thermal - impact,

£41.99
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Xps boards 1200 600mm under - boards, 600mm,

Xps boards 1200 600mm under - boards, 600mm,

£77.49
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6mm 10mm underfloor under - &,

6mm 10mm underfloor under - &,

£58.28
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Underfloor heating edge - underfloor,

Underfloor heating edge - underfloor,

£34.20
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Electric underfloor heating - underfloor,

Electric underfloor heating - underfloor,

£4.22
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12mm tile backer - tile, board

12mm tile backer - tile, board

£11.49
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Van insulation foil foam - insulation,

Van insulation foil foam - insulation,

£23.99
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Xps boards underfloor heating - boards,

Xps boards underfloor heating - boards,

£12.04
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Thermopanel 15mm tile backer - tile,

Thermopanel 15mm tile backer - tile,

£12.99
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Cement coated xps underfloor - cement,

Cement coated xps underfloor - cement,

£8.99
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Underfloor aluminium thermal - aluminium,

Underfloor aluminium thermal - aluminium,

£53.99
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Speedfit edge insulation - jg,

Speedfit edge insulation - jg,

£19.36
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10m under bonnet heat - 10m,

10m under bonnet heat - 10m,

£20.99
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Underfloor heating edge - underfloor,

Underfloor heating edge - underfloor,

£23.58
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Xps insulation boards for - insulation,

Xps insulation boards for - insulation,

£1.75
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Underfloor heating insulation - underfloor,

Underfloor heating insulation - underfloor,

£68.32
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50m under bonnet heat - 50m,

50m under bonnet heat - 50m,

£22.89
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Xps insulation boards ekoboard - boards,

Xps insulation boards ekoboard - boards,

£5.25
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Tile backer boards cement - backer,

Tile backer boards cement - backer,

£14.99
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Campervan insulation foam - campervan,

Campervan insulation foam - campervan,

£0.99
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6mm electric underfloor - electric,

6mm electric underfloor - electric,

£4.99
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Electric underfloor heating - electric,

Electric underfloor heating - electric,

£3.98
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Xps water underfloor - xps,

Xps water underfloor - xps,

£139.95
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Underfloor heating 50m - heating,

Underfloor heating 50m - heating,

£25.99
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Superfoil sfuf underfloor - superfoil,

Superfoil sfuf underfloor - superfoil,

£141.99
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Xps insulation boards - xps,

Xps insulation boards - xps,

£34.93
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Wall insulation under - wall,

Wall insulation under - wall,

£17.54
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Thermosphere concrete - thermosphere,

Thermosphere concrete - thermosphere,

£4.33
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10m under bonnet heat - bonnet,

10m under bonnet heat - bonnet,

£20.99
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5mm xps underlay for - wood, or

5mm xps underlay for - wood, or

£25.99
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Xps insulation boards - xps,

Xps insulation boards - xps,

£4.99
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Tile backer board - tile, thermal

Tile backer board - tile, thermal

£149.90
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6mm tile backer boards - backer,

6mm tile backer boards - backer,

£8.99
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10mm tile backer - 10mm, floor

10mm tile backer - 10mm, floor

£9.99
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Tile backer board 8mm - board,

Tile backer board 8mm - board,

£9.29
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Aluminium thermal insulation - thermal,

Aluminium thermal insulation - thermal,

£19.99
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Adept underfloor heating - underfloor,

Adept underfloor heating - underfloor,

£18.00
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10m camper van foam - 2-10m,

10m camper van foam - 2-10m,

£11.99
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6mm 10mm xps - xps, insulation

6mm 10mm xps - xps, insulation

£31.45
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10m under bonnet - 10m,

10m under bonnet - 10m,

£20.99
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Under tile insulation - tile, boards

Under tile insulation - tile, boards

£21.90
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Under bonnet car heat - car,

Under bonnet car heat - car,

£59.86
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Fastwarm 6mm underfloor - fastwarm,

Fastwarm 6mm underfloor - fastwarm,

£5.99
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Insulation boards 25mm - boards, jablite

Insulation boards 25mm - boards, jablite

£41.99
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Xps insulation boards - xps,

Xps insulation boards - xps,

£74.85
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50m under bonnet heat - under,

50m under bonnet heat - under,

£22.89
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Insulation for laminate wood - insulation, laminate,

Insulation for laminate wood - insulation, laminate,

£4.19
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Boat isolator thermal - 1.5m,

Boat isolator thermal - 1.5m,

£39.99
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Underlay underfloor heating - underlay,

Underlay underfloor heating - underlay,

£52.70
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Looking for more under floor insulation?

Search eBay live — fresh results filtered for the best value, updated every hour.

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📊96 listings · from £0.99 · avg £42.09

Browse 96 under floor insulation listings currently in our index. Prices range from £0.99 to £669.99, with an average of £42.09. 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 under floor insulation →

Try this: kingspan 50mm | celotex insulation boards 50mm | kingspan insulation 100mm | rockwool insulation | cavity closers | 100mm insulation boards | insulation 100mm | cavity insulation | insulation boards 25mm | floor insulation

Shop by budget

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

Everything you need to know about under floor insulation

Whether you are looking for a brand-new or second-hand under floor 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 £0.99, while premium listings can reach £669.99 — giving you a wide budget spread to work with. The average price of £42.09 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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