Collection: Celotex Wall Insulation

Our Celotex wall insulation sheets comply perfectly with the thermal requirements of building regulations and can meet the demands of all builders. Celotex is the UK’s top brand for providing insulation materials for building and construction so we are proud to offer you their high-quality wall insulation boards for a great value price. We have a large range of Celotex wall insulation boards available, with thicknesses ranging from 25mm to 200mm, most of which will cover an area of 2.88m² per board. 

Which type of Celotex wall insulation you should choose depends on your particular needs. If your main motivation is reduced energy bills, our PIR boards are the best option for you. To overcome cold spots in a building, you should take a look at our multi-purpose insulation boards. Our insulated plasterboard will allow you to undertake two steps at once by combining insulation boards and plasterboard for installation at the same time so if your project is short on time, this may be the right option for you.

In addition to improving the thermal qualities of the building to reduce heat loss and heat gain, Celotex wall insulation boards will also reduce noise, which is particularly important in flats and terraced properties. Recommended products include Celotex Solid Wall Thermal PIR Insulation, External and Internal Wall Insulation Boards, and Celotex High-Performance Wall Insulation.

If you’d like more information on our products or to discuss your best options for your insulation project, get in touch with our team on 020 3582 6399 or get in touch via the Live Chat .

Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes)
Celotex GA4000 General Purpose PIR Insulation Board 50mm to 100mm 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
from £15.25 £18.30
Sale price
from £15.25 £18.30
Regular price
£0.00
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Celotex 50mm GA4050 2.4m x 1.2m
50mm Celotex GA4050 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£22.58 £27.10
Sale price
£22.58 £27.10
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£0.00
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Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex
100mm Celotex GA4100 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£39.99 £47.99
Sale price
£39.99 £47.99
Regular price
£0.00
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per 
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Celotex 25mm TB4025 2.4m x 1.2m
25mm Celotex TB4025 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£15.25 £18.30
Sale price
£15.25 £18.30
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£0.00
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Celotex PL4000 Insulated Plasterboard (All Sizes) 2.4m x 1.2m
Celotex PL4000 Insulated Plasterboard (All Sizes) 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
from £38.23 £45.88
Sale price
from £38.23 £45.88
Regular price
£0.00
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per 
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75mm Celotex GA4075 2.4m x 1.2m
75mm Celotex GA4075 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£34.49 £41.39
Sale price
£34.49 £41.39
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£0.00
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Celotex TB4000 insulation board 1.2m x 2.4m - 25mm to 40mm
Celotex TB4000 Thermal Bridging Board 1.2m x 2.4m - 25mm to 40mm Floor Insulation
Vendor
Celotex
Regular price
from £15.25 £18.30
Sale price
from £15.25 £18.30
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£0.00
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Celotex 120mm XR4120 2.4m x 1.2m
120mm Celotex XR4120 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£51.92 £62.30
Sale price
£51.92 £62.30
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£0.00
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Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm
Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm Loft Insulation
Vendor
Celotex
Regular price
from £51.92 £62.30
Sale price
from £51.92 £62.30
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£0.00
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Celotex 40mm TB4040 2.4m x 1.2m
40mm Celotex TB4040 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£22.66 £27.19
Sale price
£22.66 £27.19
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£0.00
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per 
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70mm Celotex GA4070 2.4m x 1.2m
70mm Celotex GA4070 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£33.62 £40.34
Sale price
£33.62 £40.34
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£0.00
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150mm Celotex XR4150 2.4m X 1.2m | Celotex 150mm
150mm Celotex XR4150 2.4m X 1.2m Floor Insulation
Vendor
Celotex
Regular price
£63.60 £76.32
Sale price
£63.60 £76.32
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£0.00
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per 
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Celotex 60mm GA4060 2.4m x 1.2m
60mm Celotex GA4060 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£29.77 £35.72
Sale price
£29.77 £35.72
Regular price
£0.00
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per 
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90mm Celotex GA4090 2.4m x 1.2m
90mm Celotex GA4090 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£41.19 £49.43
Sale price
£41.19 £49.43
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£0.00
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per 
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Celotex 30mm TB4030 2.4m x 1.2m
30mm Celotex TB4030 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£19.62 £23.54
Sale price
£19.62 £23.54
Regular price
£0.00
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80mm Celotex GA4080 2.4m x 1.2m
80mm Celotex GA4080 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£39.48 £47.38
Sale price
£39.48 £47.38
Regular price
£0.00
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per 
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Celotex PL4025 37.5mm 2.4m x 1.2m
Celotex PL4025 37.5mm 2.4m x 1.2m Wall Insulation
Vendor
Celotex
Regular price
£38.23 £45.88
Sale price
£38.23 £45.88
Regular price
£0.00
Unit price
per 
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Celotex PL4050 62.5mm 2.4m x 1.2m
Celotex PL4050 62.5mm 2.4m x 1.2m Wall Insulation
Vendor
Celotex
Regular price
£49.02 £58.82
Sale price
£49.02 £58.82
Regular price
£0.00
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per 
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12mm Celotex TB4012 2.4m x 1.2m
12mm Celotex TB4012 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
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£0.00
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Celotex PL4040 52.5mm 2.4m x 1.2m
Celotex PL4040 52.5mm 2.4m x 1.2m Wall Insulation
Vendor
Celotex
Regular price
£44.25 £53.10
Sale price
£44.25 £53.10
Regular price
£0.00
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per 
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Celotex PL4060 72.5mm 2.4m x 1.2m
Celotex PL4060 72.5mm 2.4m x 1.2m Wall Insulation
Vendor
Celotex
Regular price
£52.15 £62.58
Sale price
£52.15 £62.58
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£0.00
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Celotex 20mm TB4020 2.4m x 1.2m
20mm Celotex TB4020 2.4m x 1.2m Wall Insulation
Vendor
Celotex
Regular price
£18.55 £22.26
Sale price
£18.55 £22.26
Regular price
£0.00
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140mm Celotex XR4140 Insulation Board 2.4m x 1.2m
140mm Celotex XR4140 Insulation Board 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£65.16 £78.19
Sale price
£65.16 £78.19
Regular price
£0.00
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per 
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130mm Celotex XR4130 2.4m x 1.2m
130mm Celotex XR4130 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£62.36 £74.83
Sale price
£62.36 £74.83
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£0.00
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per 
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Celotex 110mm XR4110 2.4m x 1.2m
110mm Celotex XR4110 2.4m x 1.2m Floor Insulation
Vendor
Celotex
Regular price
£55.41 £66.49
Sale price
£55.41 £66.49
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£0.00
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per 
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Celotex 165mm XR4165 2.4m x 1.2m
165mm Celotex XR4165 2.4m x 1.2m Wall Insulation
Vendor
Celotex
Regular price
£83.63 £100.36
Sale price
£83.63 £100.36
Regular price
£0.00
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per 
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Celotex 200mm XR4200 2.4m x 1.2m
200mm Celotex XR4200 2.4m x 1.2m Loft Insulation
Vendor
Celotex
Regular price
£95.99 £115.19
Sale price
£95.99 £115.19
Regular price
£0.00
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per 
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Celotex wall insulation

Celotex internal wall insulation

Celotex external wall insulation

Celotex cavity wall insulation

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