Rated Excellent rating
FREE DELIVERY over £350 EX VAT
FREE PROMISE we’ll beat by 5%
Get more, save more! Quantity discounts on all products

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.

Read more...
Underfloor & Underground - image
16 products
newest
225mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 32/42)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 225mmQuantity: 1 SheetGrade: 225mm - Grade 32/42
Last known price: £84.85
£ 101.82 Inc VAT
225mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 24/32)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 225mmQuantity: 1 SheetGrade: 225mm - Grade 24/32
Last known price: £84.85
£ 101.82 Inc VAT
225mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 18/24)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 225mmQuantity: 1 SheetGrade: 225mm - Grade 18/24
Last known price: £84.85
£ 101.82 Inc VAT
225mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 13/18)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 225mmQuantity: 1 SheetGrade: 225mm - Grade 13/18
Last known price: £84.85
£ 101.82 Inc VAT
225mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 9/13)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 225mmQuantity: 1 SheetGrade: 225mm - Grade 9/13
Last known price: £84.85
£ 101.82 Inc VAT
225mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 7/10)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 225mmQuantity: 1 SheetGrade: 225mm - Grade 7/10
Last known price: £84.85
£ 101.82 Inc VAT
160mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 13/18)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 160mmQuantity: 1 SheetGrade: 160mm - Grade 13/18
Last known price: £84.85
£ 101.82 Inc VAT
160mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 32/42)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 160mmQuantity: 1 SheetGrade: 160mm - Grade 32/42
Last known price: £84.85
£ 101.82 Inc VAT
160mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 24/32)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 160mmQuantity: 1 SheetGrade: 160mm - Grade 24/32
Last known price: £84.85
£ 101.82 Inc VAT
160mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 18/24)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 160mmQuantity: 1 SheetGrade: 160mm - Grade 18/24
Last known price: £84.85
£ 101.82 Inc VAT
160mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 9/13)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 160mmQuantity: 1 SheetGrade: 160mm - Grade 9/13
Last known price: £84.85
£ 101.82 Inc VAT
160mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 7/10)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 160mmQuantity: 1 SheetGrade: 160mm - Grade 7/10
Last known price: £84.85
£ 101.82 Inc VAT
90mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 32/42)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 90mmQuantity: 1 SheetGrade: 90mm - Grade 32/42
Last known price: £84.85
£ 101.82 Inc VAT
90mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 24/32)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 90mmQuantity: 1 SheetGrade: 90mm - Grade 24/32
Last known price: £84.85
£ 101.82 Inc VAT
90mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 18/24)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 90mmQuantity: 1 SheetGrade: 90mm - Grade 18/24
Last known price: £84.85
£ 101.82 Inc VAT
90mm Cellcore HX S Under Slab (EPS) Anti Heave Board (Grade 13/18)
Expanded Polystyrene ( EPS Insulation ) Pack Length: 2400mmPack Width: 1200mmPack coverage: 2.88m2Thickness: 90mmQuantity: 1 SheetGrade: 90mm - Grade 13/18
Last known price: £84.85
£ 101.82 Inc VAT
Super Customer Service
Transparent Pricing & Secure Payments
Nationwide Delivery Available On All Orders
Specialist Supplier Of Over 7000 Insulation Products
Payment methods offered by Stripe
Payment method
Payment method
Payment method
Payment method
Payment method
Payment method
Payment method
Payment method