Under floor insulation
Under floor insulation for sale on Ireland's largest auction and classifieds sites
Insulation boards xps under - boards, - £419.60
Thickness options 6mm • 10mm 20mm 30mm • Insulation underfloor heating - Free postage - New and Used
Thickness options 6mm • 10mm 20mm 30mm • Insulation underfloor heating - Free postage - New and Used
Xps insulation board under - xps, - £63.60
Thickness options 6mm • 10mm 20mm 30mm • Superior insulation minimizes - Free postage - New and Used
Thickness options 6mm • 10mm 20mm 30mm • Superior insulation minimizes - Free postage - New and Used
Xps insulation boards for - xps, - £6.29
Xps insulation boards • Underfloor heating • Minimum order qty - Free postage - New and Used
Xps insulation boards • Underfloor heating • Minimum order qty - Free postage - New and Used
Tile backer board insulation - , - £12.99
Fastwarm insulation tilebacker • Boards are constructed • Undertile mats cable - Free postage - New and Used
Fastwarm insulation tilebacker • Boards are constructed • Undertile mats cable - Free postage - New and Used
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Insulation boards thermal xps - insulation, - £585.60
Underfloor insulation electric • Boards are here • Help reduce heat - Free postage - New and Used
Underfloor insulation electric • Boards are here • Help reduce heat - Free postage - New and Used
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48 listings · from £3.99 · avg £93.84
⚠️ These listings were last updated more than 24 days ago.
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Browse 48 under floor insulation listings currently in our index. Prices range from £3.99 to £585.6, with an average of £93.84. 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 →
Tile backer board - backer, 6mm - £4.99
Tile backer boards • Underfloor heating systems • Are specifically two - Free postage - New and Used
Tile backer boards • Underfloor heating systems • Are specifically two - Free postage - New and Used
50mm xps insulation boards - xps, - £15.49
Ezheat xps insulation • Boards are perfectly • Use beneath both - Free postage - New and Used
Ezheat xps insulation • Boards are perfectly • Use beneath both - Free postage - New and Used
Kingspan thermawall multi - kingspan, - £119.99
Can also used • Floor wall roof • Applied below suspended - Free postage - New and Used
Can also used • Floor wall roof • Applied below suspended - Free postage - New and Used
6mm 10mm underfloor under - 10mm, - £28.76
Suitable underfloor heating • Concrete floors screeded • All boards are - Free postage - New and Used
Suitable underfloor heating • Concrete floors screeded • All boards are - Free postage - New and Used
Van insulation foil foam - insulation, - £159.49
Example transporter swb • Would require 12m • 15m our insulation - Free postage - New and Used
Example transporter swb • Would require 12m • 15m our insulation - Free postage - New and Used
Underfloor heating edge - underfloor, - £16.00
Underfloor heating edge • Insulation use screeded • Systems can used - Free postage - New and Used
Underfloor heating edge • Insulation use screeded • Systems can used - Free postage - New and Used
Underfloor heating insulation - heating, - £217.88
Living heat impact • Plus thermal insulation • Has been specially - Free postage - New and Used
Living heat impact • Plus thermal insulation • Has been specially - Free postage - New and Used
Xps insulation boards 1200 - xps, - £130.21
They can used • Without underfloor heating • Give great insulation - Free postage - New and Used
They can used • Without underfloor heating • Give great insulation - Free postage - New and Used
Tile backer boards - backer, - £13.99
Tile backer boards • First class heat • Insulation underfloor heating - Free postage - New and Used
Tile backer boards • First class heat • Insulation underfloor heating - Free postage - New and Used
Waterproof membrane wet room - wet, - £55.99
Earn distributor aqua • Build products substrate • Two outer layers - Free postage - New and Used
Earn distributor aqua • Build products substrate • Two outer layers - Free postage - New and Used
Underfloor heating edge - underfloor, - £18.00
High quality underfloor • Heating perimeter edge • Strip used absorb - Free postage - New and Used
High quality underfloor • Heating perimeter edge • Strip used absorb - Free postage - New and Used
Electric underfloor insulation - underfloor, - £262.50
Insulation underfloor heating • Wetroom building material • Accessories fixings excellent - Free postage - New and Used
Insulation underfloor heating • Wetroom building material • Accessories fixings excellent - Free postage - New and Used
30mm xps insulation - 30mm, - £11.99
Ezheat xps insulation • Minimum order qty • Boards are perfectly - Free postage - New and Used
Ezheat xps insulation • Minimum order qty • Boards are perfectly - Free postage - New and Used
Xps insulation boards - xps, for - £518.00
Underfloor insulation are • Here help top • Concrete timber sub - Free postage - New and Used
Underfloor insulation are • Here help top • Concrete timber sub - Free postage - New and Used
5mm under floor closed - 2.5mm, - £6.00
Pictures show examples • What use this • Good quality can - Free postage - New and Used
Pictures show examples • What use this • Good quality can - Free postage - New and Used
Camper van foam insulation - van, - £159.49
Camper ultra therm • Provides excellent acoustic • Thermal insulation adhesive - Free postage - New and Used
Camper ultra therm • Provides excellent acoustic • Thermal insulation adhesive - Free postage - New and Used
Electric underfloor heating - electric, - £5.38
Excellent thermal insulation • Suitable use will • Heating mats information - Free postage - New and Used
Excellent thermal insulation • Suitable use will • Heating mats information - Free postage - New and Used
Underfloor insulation heating - underfloor, - £21.56
Super foil underfloor • Insulation under laminate • Wood floor carpet - Free postage - New and Used
Super foil underfloor • Insulation under laminate • Wood floor carpet - Free postage - New and Used
Xps boards underlay thermal - xps, - £4.95
Can used insulation • Wood laminate flooring • All boards are - Free postage - New and Used
Can used insulation • Wood laminate flooring • All boards are - Free postage - New and Used
Under tile insulation boards - tile, - £486.92
Whether you are • Installing carpet laminate • Hardwood flooring these - Free postage - New and Used
Whether you are • Installing carpet laminate • Hardwood flooring these - Free postage - New and Used
Insulation for laminate - for, wood - £4.19
Underfloor heating • When used conjunction • Systems impact plus - Free postage - New and Used
Underfloor heating • When used conjunction • Systems impact plus - Free postage - New and Used
Xps boards floor underlay - xps, - £5.24
Insulation underfloor heating • Wetroom building material • Accessories fixings thickness - Free postage - New and Used
Insulation underfloor heating • Wetroom building material • Accessories fixings thickness - Free postage - New and Used
40mm xps insulation - 40mm, - £13.49
Ezheat xps insulation • Boards are perfectly • Use beneath both - Free postage - New and Used
Ezheat xps insulation • Boards are perfectly • Use beneath both - Free postage - New and Used
Cement coated xps - 10, - £139.95
Thermal conductivity 0.027 • 0.03 density this • Aluminium board perfect - Free postage - New and Used
Thermal conductivity 0.027 • 0.03 density this • Aluminium board perfect - Free postage - New and Used
Closed cell insulation for - closed, - £26.07
This closed cell • Insulation work foil • Underfloor heating mat - Free postage - New and Used
This closed cell • Insulation work foil • Underfloor heating mat - Free postage - New and Used
Xps insulation board - insulation, for - £12.99
Thickness options 20mm • Superior insulation minimizes • Heat transfer energy - Free postage - New and Used
Thickness options 20mm • Superior insulation minimizes • Heat transfer energy - Free postage - New and Used
Xps insulation boards 6mm - insulation, | - £4.20
Insulation underfloor heating • Wetroom building material • Accessories fixings superior - Free postage - New and Used
Insulation underfloor heating • Wetroom building material • Accessories fixings superior - Free postage - New and Used
Xps insulation boards 6mm 10mm - insulation, - £3.99
Insulation underfloor heating • Wetroom building material • Accessories fixings thickness - Free postage - New and Used
Insulation underfloor heating • Wetroom building material • Accessories fixings thickness - Free postage - New and Used
Xps water underfloor - x, - £134.95
Thermal conductivity 0.027 • 0.03 density this • Aluminium board perfect - Free postage - New and Used
Thermal conductivity 0.027 • 0.03 density this • Aluminium board perfect - Free postage - New and Used
Ufh superfoil underfloor - ufh, - £69.07
Super foil underfloor • Insulation under laminate • Wood floor carpet - Free postage - New and Used
Super foil underfloor • Insulation under laminate • Wood floor carpet - Free postage - New and Used
10m roll under bonnet - 10m, - £9.65
10m sound deadening • Roll car van • Heat insulation 10mm - Free postage - New and Used
10m sound deadening • Roll car van • Heat insulation 10mm - Free postage - New and Used
Adept white underfloor heating - underfloor, - £22.99
Manufactured from high • Quality lightweight foam • These rolls are - Free postage - New and Used
Manufactured from high • Quality lightweight foam • These rolls are - Free postage - New and Used
X33 6mm underfloor under - underfloor, - £79.99
Boards are greyish • Black colourextruded polystyrene • Specifically use electric - Free postage - New and Used
Boards are greyish • Black colourextruded polystyrene • Specifically use electric - Free postage - New and Used
Boat isolator thermal - isolator, - £32.99
This easy install • High performance laminate • Thermal acoustic insulation - Free postage - New and Used
This easy install • High performance laminate • Thermal acoustic insulation - Free postage - New and Used
Xps insulation boards - insulation, - £210.00
Insulation underfloor heating • Wetroom building material • Accessories fixings thickness - Free postage - New and Used
Insulation underfloor heating • Wetroom building material • Accessories fixings thickness - Free postage - New and Used
Xps boards underfloor - xps, - £4.50
Electric underfloor heating • Insulation boards 6mm • 10mm 20mm 30mm - Free postage - New and Used
Electric underfloor heating • Insulation boards 6mm • 10mm 20mm 30mm - Free postage - New and Used
6mm 10mm underfloor under - 10mm, - £62.45
Suitable underfloor heating • Concrete floors screeded • All boards are - Free postage - New and Used
Suitable underfloor heating • Concrete floors screeded • All boards are - Free postage - New and Used
Underfloor heating - 5, - £65.00
Engineered specifically use • With16mm pipes 150mm • Channel spacing these - Free postage - New and Used
Engineered specifically use • With16mm pipes 150mm • Channel spacing these - Free postage - New and Used
Insulation boards 25mm jablite - 25mm, - £76.49
Jablite insulation can • Used temperatures therefore • Suitable use underfloor - Free postage - New and Used
Jablite insulation can • Used temperatures therefore • Suitable use underfloor - Free postage - New and Used
Xps insulation boards ekoboard - xps, - £6.31
Ebay ebayisapi dll • Visit shop https • Str underfloorheatingshop feedback - Free postage - New and Used
Ebay ebayisapi dll • Visit shop https • Str underfloorheatingshop feedback - Free postage - New and Used
Xps boards floor underlay - xps, - £108.33
Electric underfloor heating • Kits blk excellent • Thermal insulation suitable - Free postage - New and Used
Electric underfloor heating • Kits blk excellent • Thermal insulation suitable - Free postage - New and Used
Xpe van under floor - xpe, - £54.99
This easy install • High performance laminate • Thermal acoustic insulation - Free postage - New and Used
This easy install • High performance laminate • Thermal acoustic insulation - Free postage - New and Used
Underfloor heating thermal - heating, - £10.67
These insulation boards • When laid under • Our underfloor heater - Free postage - New and Used
These insulation boards • When laid under • Our underfloor heater - Free postage - New and Used
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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 48 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 £3.99, while premium listings can reach £585.6 — giving you a wide budget spread to work with. The average price of £93.84 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.