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Underfloor & Underground

Underfloor & Underground

Underfloor & Underground - Competitive Trade Pricing with quantity discounts. Online supplier of Swimming Pool and Basement insulation.

About

Underfloor insulation is a type of insulation that is installed under the floorboards. It will reduce the amount of heat that escapes through the floor, which means you will need less heating to keep your home warm. This means you can save on your energy bills as well as reducing your carbon footprint.

Have a browse of our stock and filter by thickness or coverage on the left-hand side of the page. If you’d like to talk through the suitability of some products for your project, or get a quantity discount quotation please call us on 02039519012 , email sales@insulationstoreonline.co.uk or Live Chat - Lowest UK Prices.

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15 products
newest
30mm Kay-Metzeler EPS70 Polystyrene Insulation Board (Pack of 10) - image
30mm Kay-Metzeler EPS70 Polystyrene Insulation Board (Pack of 10)
EPS insulation board Pack Length: 24000mmPack Width: 12000mmPack coverage: 28.80m2Thickness: 30mmQuantity: Pack Of 10
Last known price: £81.55
£ 97.86 Inc VAT
30mm White Polystyrene EPS for External Wall Insulation ( Pack of 20 )
Expanded Polystyrene (EPS) board Pack Length: 20000mmPack Width: 10000mmPack coverage: 10m2Thickness: 30mmQuantity: Pack Of 20Grade: 75kPa
Last known price: £32.11
£ 38.53 Inc VAT
30mm Grey Polystyrene EPS for External Wall Insulation ( Pack of 20 )
Expanded Polystyrene (EPS) board Pack Length: 20000mmPack Width: 10000mmPack coverage: 10m2Thickness: 30mmQuantity: Pack Of 20Grade: 70 (kPa)
Last known price: £35.29
£ 42.35 Inc VAT
30mm Rockwool RW6 Acoustic Insulation Slab ( Pack of 8 )
stone wool insulation slab Pack Length: 9600mmPack Width: 4800mmPack coverage: 5.76m2Thickness: 30mmQuantity: Pack Of 8
Last known price: £46.55
£ 55.86 Inc VAT
30mm Rockwool RW5 Acoustic Insulation Slab ( Pack of 8 )
stone wool insulation slab Pack Length: 9600mmPack Width: 4800mmPack coverage: 5.76m2Thickness: 30mmQuantity: Pack Of 8
Last known price: £46.55
£ 55.86 Inc VAT
30mm Rockwool RW3 Acoustic Insulation Slab ( Pack of 15 )
stone wool insulation slab Pack Length: 18000Pack Width: 9000mmPack coverage: 10.80m2Thickness: 30mmQuantity: Pack Of 15
Last known price: £46.55
£ 55.86 Inc VAT
30mm Knauf Insulation Rocksilk RS140 Building Slab ( Pack of 7 )
Rock Mineral Wool Slabs Pack Length: 8400mmPack Width: 4200mmPack coverage: 5.04m2Thickness: 30mmQuantity: Pack Of 7
£ 43.41
£ 52.09 Inc VAT
30mm Knauf Insulation Rocksilk RS100 Building Slab ( Pack of 10 )
Rock Mineral Wool Slabs Pack Length: 12000mmPack Width: 6000mmPack coverage: 7.20m2Thickness: 30mmQuantity: Pack Of 10
£ 43.41
£ 52.09 Inc VAT
30mm Knauf Insulation Rocksilk RS60 Building Slab ( Pack of 14 )
Rock Mineral Wool Slabs Pack Length: 8400mmPack Width: 8400mmPack coverage: 10.08m2Thickness: 30mmQuantity: Pack Of 14
£ 43.41
£ 52.09 Inc VAT
30mm Knauf Insulation Rocksilk RS45 Building Slab ( Pack of 16 )
Rock Mineral Wool Slabs Pack Length: 19200mmPack Width: 9600mmPack coverage: 11.52m2Thickness: 30mmQuantity: Pack Of 16
£ 43.41
£ 52.09 Inc VAT
30mm BEWI EPS150 Jabfloor Floor Polystyrene Insulation ( Pack of 20 )
Jablite expanded polystyrene EPS insulation Pack Length: 48000mmPack Width: 24000mmPack coverage: 57.60m2Thickness: 30mmQuantity: Pack Of 20
£ 162.84
£ 195.41 Inc VAT
30mm BEWI EPS100 Jabfloor Floor Polystyrene Insulation ( Pack of 20 )
Jablite expanded polystyrene EPS insulation Pack Length: 48000mmPack Width: 24000mmPack coverage: 57.60m2Thickness: 30mmQuantity: Pack Of 20Grade: 100 (kPa)
£ 162.84
£ 195.41 Inc VAT
30mm BEWI EPS70 Jabfloor Floor Polystyrene Insulation ( Pack of 20 ) - image
30mm BEWI EPS70 Jabfloor Floor Polystyrene Insulation ( Pack of 20 )
Jablite expanded polystyrene EPS insulation Pack Length: 48000mmPack Width: 24000mmPack coverage: 57.60 m2Thickness: 30mmQuantity: Pack Of 20Grade: 70 (kPa)
£ 100.92
£ 121.10 Inc VAT
30mm Unilin Thin-R XT/UF PIR Floor Insulation Board - image
30mm Unilin Thin-R XT/UF PIR Floor Insulation Board
PIR Floor Insulation Board Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 30mmQuantity: 1 Sheet
£ 20.28
£ 24.34 Inc VAT
30mm Kingspan Thermafloor TF70 PIR Floor Insulation Board - image
30mm Kingspan Thermafloor TF70 PIR Floor Insulation Board
A high performance rigid thermoset polyisocyanurate (PIR) insulation. Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 30mmQuantity: 1 Sheet
£ 29.91
£ 35.89 Inc VAT
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