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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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16 products
newest
75mm Kay-Metzeler EPS70 Polystyrene Insulation Board (Pack of 4) - image
75mm Kay-Metzeler EPS70 Polystyrene Insulation Board (Pack of 4)
EPS insulation board Pack Length: 9600mmPack Width: 4800mmPack coverage: 11.52m2Thickness: 75mmQuantity: Pack Of 4
Last known price: £74.21
£ 89.05 Inc VAT
75mm Jablite Claymaster Clay Heave Protection Board ( Pack of 8 ) - image
75mm Jablite Claymaster Clay Heave Protection Board ( Pack of 8 )
Clay Heave Protection Board Pack Length: 19200mmPack Width: 9600mmPack coverage: 23.04m2Thickness: 75mmQuantity: 8 Sheets
£ 137.30
£ 164.76 Inc VAT
75mm Rockwool RW6 Acoustic Insulation Slab ( Pack of 4 )
stone wool insulation slab Pack Length: 4800mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 75mmQuantity: Pack Of 4
Last known price: £46.55
£ 55.86 Inc VAT
75mm Rockwool RW5 Acoustic Insulation Slab ( Pack of 3 )
stone wool insulation slab Pack Length: 3600mmPack Width: 1800mmThickness: 75mmQuantity: Pack Of 3
Last known price: £46.55
£ 55.86 Inc VAT
75mm Rockwool RW4 Acoustic Insulation Slab ( Pack of 4 )
stone wool insulation slab Pack Length: 4800mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 75mmQuantity: Pack Of 4
Last known price: £46.55
£ 55.86 Inc VAT
75mm Rockwool RW3 Acoustic Insulation Slab ( Pack of 6 )
stone wool insulation slab Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 75mmQuantity: Pack Of 6
Last known price: £46.55
£ 55.86 Inc VAT
75mm Knauf Insulation Rocksilk RS140 Building Slab ( Pack of 3 )
Rock Mineral Wool Slabs Pack Length: 3600mmPack Width: 1800mmPack coverage: 2.16m2Thickness: 75mmQuantity: Pack Of 3
£ 43.41
£ 52.09 Inc VAT
75mm Knauf Insulation Rocksilk RS100 Building Slab ( Pack of 4 )
Rock Mineral Wool Slabs Pack Length: 4800mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 75mmQuantity: Pack Of 4
£ 43.41
£ 52.09 Inc VAT
75mm Knauf Insulation Rocksilk RS80 Building Slab ( Pack of 4 )
Rock Mineral Wool Slabs Pack Length: 4800mmPack Width: 2400mmPack coverage: 2.88m2Thickness: 75mmQuantity: Pack Of 4
£ 43.41
£ 52.09 Inc VAT
75mm Knauf Insulation Rocksilk RS60 Building Slab ( Pack of 6 )
Rock Mineral Wool Slabs Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 75mmQuantity: Pack Of 6
£ 43.41
£ 52.09 Inc VAT
75mm Knauf Insulation Rocksilk RS45 Building Slab ( Pack of 6 )
Rock Mineral Wool Slabs Pack Length: 7200mmPack Width: 3600mmPack coverage: 4.32m2Thickness: 75mmQuantity: Pack Of 6
£ 43.41
£ 52.09 Inc VAT
75mm BEWI EPS150 Jabfloor Floor Polystyrene Insulation ( Pack of 8 )
Jablite expanded polystyrene EPS insulation Pack Length: 19200mmPack Width: 9600mmPack coverage: 23.04m2Thickness: 75mmQuantity: Pack Of 8
£ 162.84
£ 195.41 Inc VAT
75mm BEWI EPS100 Jabfloor Floor Polystyrene Insulation ( Pack of 8 )
Jablite expanded polystyrene EPS insulation Pack Length: 19200mmPack Width: 9600mmPack coverage: 23.04m2Thickness: 75mmQuantity: Pack Of 8Grade: 100 (kPa)
£ 162.84
£ 195.41 Inc VAT
75mm BEWI EPS70 Jabfloor Floor Polystyrene Insulation ( Pack of 8 ) - image
75mm BEWI EPS70 Jabfloor Floor Polystyrene Insulation ( Pack of 8 )
Jablite expanded polystyrene EPS insulation Pack Length: 19200mmPack Width: 9600mmPack coverage: 23.04m2Thickness: 75mmQuantity: Pack Of 8Grade: 70 (kPa)
£ 94.10
£ 112.92 Inc VAT
75mm BEWI Claymaster Insulation Board - image
75mm BEWI Claymaster Insulation Board
Clay Heave Protection Board Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 75mmQuantity: 1 Sheet
£ 18.79
£ 22.55 Inc VAT
75mm Jablite Claymaster Clay Heave Protection Board - image
75mm Jablite Claymaster Clay Heave Protection Board
Clay Heave Protection Board Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 75mmQuantity: 1 Sheet
£ 18.74
£ 22.49 Inc VAT
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