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Cavity Wall Insulation

Cavity wall insulation is a cavity wall that is made up of two walls with a gap between, which is referred to as the cavity. The outer layer usually consists of brick with the inner layer consisting of a concrete block.

What is Cavity Wall Insulation?

Cavity wall insulation is apparent in homes that are built after the 1920s. Cavity wall insulation can be installed by injecting insulation material into the cavity wall from the outside. Drilling small holes in the outside of the wall for access and then refilling over with cement. It is usually made from mineral wool or polystyrene beads. Cavity insulation costs vary depending on a number of factors. It depends on the size and age of your home. However, you should be able to make back the initial installation cost in less than five years due to the energy bill savings you are likely to make. Other cost-saving methods are available such as not insulting the whole home at once.

Making a Choice

Cavity wall insulation is guaranteed to minimise the loss of heat that can escape through the wall cavities by filling up the air spaces using insulation material to decrease the transfer of heat. By doing this it will not only stop the air in the cavities, but it will also reduce the cost of heating by a considerable amount. It does this by keeping the heat within the inner walls to keep the rooms warmer for a more extended period of time. This is usually a very common feature in houses, especially the ones that are built after the 1920s. Mineral wool, polyurethane foam and polystyrene beads are both materials that are often used for cavity insulation, and the one in which you select should be determined by the existing brickwork and how big or small in size your cavity is in your home. 

Be cost effective with process and save money on your energy by having your cavity walls filled with insulation with the help of a trusted professional. 

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  1. Knauf Dritherm Cavity Wall Slab 37 Standard
    Knauf Dritherm Cavity Wall Slab 37 Standard
    £46.20
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  2. Image for Rockwool RW3 Insulation Slab
    Rockwool RW3 Insulation Slab
    £497.93
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  3. Celotex CW4000 Cavity Wall Insulation Board
    Celotex CW4000 Cavity Wall Insulation Board
    £52.26
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  4. Image for Kingspan Cavity Wall Insulation Boards Thermawall TW50
    Kingspan Cavity Wall Insulation Boards Thermawall TW50
    £51.35
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  5. Image for Knauf Dritherm Cavity Wall Slab 32 Ultimate
    Knauf Dritherm Cavity Wall Slab 32 Ultimate
    £44.40
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  6. Image for Rockwool RW5 Insulation Slab
    Rockwool RW5 Insulation Slab
    £816.30
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  7. Thermaclass Cavity Wall 21 - 1190mm x 450mm
    Thermaclass Cavity Wall 21 - 1190mm x 450mm
    £1,212.00
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  8. Image for Knauf Dritherm Cavity Wall Slab 34 Super
    Knauf Dritherm Cavity Wall Slab 34 Super
    £2,464.37
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  9. Isover CWS 36 50mm x 1.2m x 0.455m (10.92m2) (20 P/Pal)
    Isover CWS 36 50mm x 1.2m x 0.455m (10.92m2) (20 P/Pal)
    £995.90
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  10. Isover CWS 36 65mm x 1.2m x 0.455m (8.74m2) (25 P/Pal)
    Isover CWS 36 65mm x 1.2m x 0.455m (8.74m2) (25 P/Pal)
    £1,286.53
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  11. Isover CWS 36 75mm x 1.2m x 0.455m (8.74m2) (20 P/Pal)
    Isover CWS 36 75mm x 1.2m x 0.455m (8.74m2) (20 P/Pal)
    £1,197.04
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  12. Isover CWS 36 85mm x 1.2m x 0.455m (6.55m2) (20 P/Pal)
    Isover CWS 36 85mm x 1.2m x 0.455m (6.55m2) (20 P/Pal)
    £1,003.99
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  13. Isover CWS 36 100mm x 1.2m x 0.455m (6.55m2) (20 P/Pal)
    Isover CWS 36 100mm x 1.2m x 0.455m (6.55m2) (20 P/Pal)
    £1,184.24
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  14. Isover CWS 36 150mm x 1.2m x 0.455m (3.28m2) (20 P/Pal)
    Isover CWS 36 150mm x 1.2m x 0.455m (3.28m2) (20 P/Pal)
    £885.86
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  15. Image for Celotex CW4000 Cavity Wall Partition Insulation Board 50mm (10 per pack)
    Celotex CW4000 Cavity Wall Partition Insulation Board 50mm (11 per pack)
    £52.26
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  16. Celotex CW4000 Cavity Wall Partition Insulation Board 100mm (6 per pack)
    Celotex CW4000 Cavity Wall Partition Insulation Board 100mm (6 per pack)
    £54.30
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  17. Celotex CW4000 Cavity Wall Partition Insulation Board 75mm (8 Per Pack)
    Celotex CW4000 Cavity Wall Partition Insulation Board 75mm (8 Per Pack)
    £56.39
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  18. Celotex CW4000 Cavity Wall Partition Insulation Board 85mm (16 Packs)
    Celotex CW4000 Cavity Wall Partition Insulation Board 85mm (16 Packs)
    £978.82
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  19. Knauf Dritherm Cavity Wall Slab 37 455MM X 1200MM X 50MM (Pack of 12) 6.55M2 (Pallet of 30)
    Knauf Dritherm Cavity Wall Slab 37 455MM X 1200MM X 50MM (Pack of 12) 6.55M2 (Pallet of 30)
    £805.66
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  20. Knauf Dritherm Cavity Wall Slab 37 Standard 65mm 455 X 1200mm (Pallet of 40 Packs)
    Knauf Dritherm Cavity Wall Slab 37 Standard 65mm 455 X 1200mm (Pallet of 40 Packs)
    £1,455.72
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  21. Image for ISOVER Insulation Acoustic Partition Wall Floor Roll (various sizes)
    ISOVER Insulation Acoustic Partition Wall Floor Roll (various sizes)
    £66.86
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  22. Image for Knauf Acoustic Partition Wall Roll
    Knauf Acoustic Partition Wall Roll
    £52.38
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  23. Image for Rockwool RWA45 Acoustic Insulation Slab
    Rockwool RWA45 Acoustic Insulation Slab
    £25.61
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  24. Rockwool RW3 Insulation Slab 30mm x 1200mm x 600mm (12 Packs per Pallet)
    Rockwool RW3 Insulation Slab 30mm x 1200mm x 600mm (12 Packs per Pallet)
    £675.49
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  25. Image for Celotex TB4000 Insulation Board TB4025 (25mm)
    Celotex TB4000 Insulation Board TB4025 (25mm)
    £13.44
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  26. Image for Celotex TB4000 Insulation Board TB4040 (40mm)
    Celotex TB4000 Insulation Board TB4040 (40mm)
    £19.20
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  27. Celotex GA4050 Insulation Board 50mm
    Celotex GA4050 Insulation Board 50mm
    £20.39
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  28. Image for Celotex GA4070 Insulation Board 70mm
    Celotex GA4070 Insulation Board 70mm
    £28.38
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  29. Image for Celotex GA4075 Insulation Board 75mm
    Celotex GA4075 Insulation Board 75mm
    £28.38
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  30. Image for Celotex GA4080 Insulation Board 80mm
    Celotex GA4080 Insulation Board 80mm
    £32.39
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  31. Image for Celotex GA4090 Insulation Board 90mm
    Celotex GA4090 Insulation Board 90mm
    £33.60
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  32. Celotex GA4100 Insulation Board 100mm
    Celotex GA4100 Insulation Board 100mm
    £32.75
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  33. Image for Rockwool Flexi Insulation Slab (Multi Purpose)
    Rockwool Flexi Insulation Slab (Multi Purpose)
    £42.72
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  34. Image for Knauf Earthwool Flexible Insulation Slab
    Knauf Earthwool Flexible Insulation Slab - 1200 x 600mm
    £419.76
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  35. Image for SuperFOIL SF60 Multi-Layer Foil Insulation 1.5m x 8m Roll (12m2)
    SuperFOIL SF60 Multi-Layer Foil Insulation 1.5m x 8m Roll (12m2)
    £319.16
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  36. Image for SuperFOIL SF19 FR 1.5m x 10m Fire Rated Multifoil Insulation
    SuperFOIL SF19 FR 1.5m x 10m Fire Rated Multifoil Insulation
    £165.48
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  37. Image for SuperFOIL SF60 FR 1.5m x 8m Fire Rated Multifoil Insulation
    SuperFOIL SF60 FR 1.5m x 8m Fire Rated Multifoil Insulation
    £314.58
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  38. Warmline PIR Insulated Plasterboard 1.2m x 2.4m - All Sizes
    Warmline PIR Insulated Plasterboard 1.2m x 2.4m - All Sizes
    £38.70
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  39. Adaptavate Breathaplasta Smooth Finishing Plaster x 20Kg
    Adaptavate Breathaplasta Smooth Finishing Plaster x 20Kg
    £25.19
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  40. Tenmat Cavity Fire Barrier FF102/50 6mm x 75mm x 1m
    Tenmat Cavity Fire Barrier FF102/50 6mm x 75mm x 1m
    £30.12
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  41. Kingspan K-Roc Framing Slab 100mm x 1.22m x 61 (8 Sh/5.95m2)
    Kingspan K-Roc Framing Slab 100mm x 1.22m x 61 (8 Sh/5.95m2)
    £67.27
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  42. K-Roc Framing Slab 150mm x 1.22m x 610mm (5 Sh/3.72m2)
    K-Roc Framing Slab 150mm x 1.22m x 610mm (5 Sh/3.72m2)
    £63.26
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  43. Unilin Thin-R PIR 125mm x 2.4m x 1.2m
    Unilin Thin-R PIR 125mm x 2.4m x 1.2m
    £53.35
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  44. Unilin Thin-R PIR 30mm x 2.4m x 1.2m
    Unilin Thin-R PIR 30mm x 2.4m x 1.2m
    £17.27
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  45. Unilin Thin-R PIR 25mm x 2.4m x 1.2m
    Unilin Thin-R PIR 25mm x 2.4m x 1.2m
    £14.39
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  46. Unilin Thin-R PIR 150mm x 2.4m x 1.2m
    Unilin Thin-R PIR 150mm x 2.4m x 1.2m
    £52.69
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  47. Unilin Thin-R PIR 140mm x 2.4m x 1.2m
    Unilin Thin-R PIR 140mm x 2.4m x 1.2m
    £53.57
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  48. Unilin Thin-R PIR 130mm x 2.4m x 1.2m
    Unilin Thin-R PIR 130mm x 2.4m x 1.2m
    £53.35
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  1. Insulation 26item
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  1. 6mm 1 item
  2. 10mm 1 item
  3. 20mm 1 item
  4. 25mm 5item
  5. 30mm 6item
  6. 40mm 5item
  7. 50mm 8item
  8. 60mm 4item
  9. 65mm 1 item
  10. 70mm 5item
  11. 75mm 11item
  12. 80mm 5item
  13. 85mm 2item
  14. 90mm 5item
  15. 100mm 13item
  16. 110mm 2item
  17. 120mm 4item
  18. 125mm 1 item
  19. 150mm 7item
  20. 140mm 6item
  21. 200mm 1 item
  22. 165mm 1 item
Coverage
  1. 6.84m2 2item
  2. 10.26m2 1 item
  3. 3.42m2 3item
  4. 4.56m2 1 item
  5. 1.44m2 1 item
  6. 2.85m2 1 item
  7. 100m2 1 item
  8. 80m2 1 item
  9. 75m2 2item
  10. 2.88m2 30item
Material
  1. Polyisoboard 30item
  2. Polythene 4item
  3. Sheep Wool 5item
Finish
  1. Natural 5item
  2. White 2item
Type
  1. Sheep Wool Insulation 6item
  2. Vapour Control Layer 4item
Pack/Box Size
  1. 12 Per Pack 1 item
  2. 2 Per Pack 1 item
  3. 2 Rolls 1 item
  4. 3 Rolls 3item
Treatment
  1. Ionic Protect 6item
Plasterboard Width
  1. 1200mm 1 item
Plasterboard Length
  1. 2400mm 1 item
Insulation Pack Size
  1. 90mm x 4.5m x 1.14m (0.032 W/m) (24 Rolls) 1 item
  2. 90mm x 6m x 1.14m (0.035 W/m) (24 Packs) 1 item
  3. 90mm x 12.5m x 1.14m (0.040 W/m) (24 Packs) 1 item
  4. 140mm x 2.80m x 1.14m (0.032 W/m) (24 Rolls) 1 item
  5. 140mm x 3.90m x 1.14m (0.035 W/m) (24 Packs) 1 item
  6. 140mm x 8.02m x 1.14m (0.040 W/m) (24 Packs) 1 item
  7. 1170mm x 570mm x 90mm (0.035 W/mK) (16 Packs) 1 item
  8. 1170mm x 570mm x 90mm (0.038 W/mK) (16 Packs) 1 item
  9. 1170mm x 570mm x 140mm (0.032 W/mK) (16 Packs) 1 item
  10. 1170mm x 570mm x 140mm (0.035 W/mK) (16 Packs) 1 item
  11. 100mm x 6.8m x 1.2m (40 Rolls) 1 item
  12. 150mm x 4.55m x 1.2m (40 Rolls) 1 item
  13. 200mm x 3.4m x 1.2m (40 Rolls) 1 item
  14. 100mm x 5.2m x 1.2m (24 Rolls) 1 item
  15. 140mm x 4.2m x 1.2m (24 Rolls) 1 item
  16. 150mm x 3.5m x 1.2m (24 Rolls) 1 item
  17. 180mm x 3m x 1.2m (24 Rolls) 1 item
  18. 220mm x 2.5m x 1.2m (24 Rolls) 1 item
  19. 50mm x 1200mm x 400mm (36 Packs) 1 item
  20. 50mm x 1200mm x 600mm (24 Packs) 1 item
  21. 70mm x 1200mm x 600mm (32 Packs) 1 item
  22. 75mm x 1200mm x 600mm (32 Packs) 1 item
  23. 90mm x 1200mm x 600mm (36 Packs) 1 item
  24. 100mm x 1200mm x 400mm (42 Packs) 1 item
  25. 100mm x 1200mm x 600mm (32 Packs) 1 item
  26. 140mm x 1200mm x 400mm (48 Packs) 1 item
  27. 140mm x 1200mm x 600mm (36 Packs) 1 item
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  1. Blue 1 item
  2. White 1 item
Width
  1. 1.6m 1 item
  2. 100mm 1 item
  3. 1200mm 30item
  4. 150cm 2item
  5. 2m 1 item
Pack Size
  1. 2 Rolls 2item
  2. 3 Rolls 3item
  3. 5kg 1 item
Insulation Type
  1. Roll 8item
  2. PIR Board 1 item
  3. Sheep Wool 2item
  4. Slab 29item
Insulation Length
  1. 1200mm 12item
  2. 8m 3item
  3. 10m 6item
  4. 2400mm 32item
  5. 50m 4item
  6. 200m 1 item
Width
  1. 75mm 1 item
  2. 380mm 3item
  3. 570mm 2item
  4. 1200mm 32item
  5. 1.50m 2item
  6. 1.6m 1 item
  7. 2m 1 item
Insulation Width
  1. 380mm 3item
  2. 450mm 5item
  3. 570mm 2item
  4. 1200mm 33item
  5. 1500mm 2item
  6. 1.6m 1 item
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  1. 100mm 1 item
  2. 150mm 2item
  3. 200mm 1 item
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  1. 0.1m 1 item
Thickness
  1. 10mm 1 item
  2. 25mm 5item
  3. 30mm 4item
  4. 40mm 4item
  5. 50mm 6item
  6. 60mm 4item
  7. 70mm 4item
  8. 75mm 10item
  9. 80mm 4item
  10. 90mm 4item
  11. 100mm 8item
  12. 110mm 2item
  13. 120mm 3item
  14. 130mm 1 item
  15. 140mm 5item
  16. 150mm 5item
  17. 200mm 1 item
  18. 165mm 1 item
  19. 125mm 1 item
Length
  1. 50 mm 1 item
  2. 1000mm 1 item
  3. 1200mm 1 item
  4. 2400mm 31item
  5. 50m 3item
  6. 200m 1 item
Colour
  1. Blue 1 item
  2. White 2item
Product Brand
  1. Adaptavate 1 item
  2. Celotex 20item
  3. IKO 15item
  4. ISOVER 7item
  5. Kingspan 4item
  6. Knauf 21item
  7. Novia 4item
  8. Proctor 1 item
  9. Rockwool 5item
  10. SuperFOIL 9item
  11. Warmline 1 item
  12. Sheepwool 6item
  13. Tenmat 1 item
  14. Unilin 14item
Price
  1. £0.00 - £999.99 96item
  2. £1,000.00 - £1,999.99 9item
  3. £2,000.00 and above 4item
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