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Insulation Board Wall Insulation

We offer a high-quality collection of wall insulation for cavity walls, stud walls, and external walls, all from leading brands like Kingspan and Rockwool. Wall insulation is highly economical and excellent in retaining heat, controlling sound transfer, and even achieving protection against fire. Choose from various forms of wall insulation, including rolls, slabs, and cavity closers across our range at Builder Depot. For quick-dry lining applications, try our Ecotherm and Kingspan plasterboard wall insulation today!

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  1. 100mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    100mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £37.43 Inc VAT
    £13.00 Per M²
  2. 50mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    50mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £25.79 Inc VAT As low as £22.67 Inc VAT
    £8.95 Per M²
  3. 25mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    25mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £16.43 Inc VAT As low as £14.99 Inc VAT
    £5.70 Per M²
  4. 150mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    150mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £64.55 Inc VAT As low as £57.83 Inc VAT
    £22.42 Per M²
  5. 120mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    120mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £51.59 Inc VAT As low as £46.67 Inc VAT
    £17.92 Per M²
  6. 90mm Kingspan Kooltherm K106 Cavity Board 1200mm x 450mm Pack of 4
    90mm Kingspan Kooltherm K106 Cavity Board 1200mm x 450mm Pack of 4
    £94.45 Inc VAT
    £43.73 Per M²
  7. 40mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    40mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £23.27 Inc VAT As low as £20.39 Inc VAT
    £8.08 Per M²
  8. 62.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4') Quantity Discount
    62.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £95.53 Inc VAT As low as £94.96 Inc VAT
    £33.17 Per M²
  9. 42.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4') Quantity Discount
    42.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £82.75 Inc VAT As low as £79.26 Inc VAT
    £28.73 Per M²
  10. 62.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    62.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £79.07 Inc VAT
    £27.46 Per M²
  11. 50mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 10 Quantity Discount
    50mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 10
    £127.91 Inc VAT As low as £126.67 Inc VAT
    £23.69 Per M²
  12. 37.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    37.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £58.07 Inc VAT
    £20.16 Per M²
  13. 50mm Jablite HP70 External Wall Insulation 1200mm x 600mm Pack of 12 Quantity Discount
    50mm Jablite HP70 External Wall Insulation 1200mm x 600mm Pack of 12
    £55.19 Inc VAT As low as £50.51 Inc VAT
  14. 20mm Kingspan Thermapitch TP10 Insulation 2400mm x 1200mm (8' x 4')
    20mm Kingspan Thermapitch TP10 Insulation 2400mm x 1200mm (8' x 4')
    £22.55 Inc VAT
    £7.82 Per M²
  15. 37.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4') Quantity Discount
    37.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £77.81 Inc VAT As low as £76.70 Inc VAT
    £27.01 Per M²
  16. 72.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4') Quantity Discount
    72.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £101.34 Inc VAT As low as £100.25 Inc VAT
    £35.18 Per M²
  17. 52.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4') Quantity Discount
    52.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £84.41 Inc VAT As low as £84.16 Inc VAT
    £29.30 Per M²
  18. 57.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4') Quantity Discount
    57.5mm Kingspan Kooltherm K118 Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £93.88 Inc VAT As low as £92.06 Inc VAT
    £32.59 Per M²
  19. 75mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 6 Quantity Discount
    75mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 6
    £114.89 Inc VAT As low as £113.65 Inc VAT
    £35.46 Per M²
  20. 52.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    52.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £68.75 Inc VAT
    £23.87 Per M²
  21. 82.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    82.5mm EcoTherm Eco-Liner Insulated Plasterboard 2400mm x 1200mm (8' x 4')
    £100.43 Inc VAT
    £34.87 Per M²
  22. 50mm Kingspan Kooltherm K5 External Board 1200mm x 600mm Pack of 10
    50mm Kingspan Kooltherm K5 External Board 1200mm x 600mm Pack of 10
    £160.62 Inc VAT
    £22.31 Per M²
  23. 100mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 5 Quantity Discount
    100mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 5
    £127.91 Inc VAT As low as £126.67 Inc VAT
    £47.38 Per M²
  24. 60mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 8 Quantity Discount
    60mm Kingspan Kooltherm K108 Cavity Board 1200mm x 450mm Pack of 8
    £123.34 Inc VAT As low as £122.30 Inc VAT
    £28.55 Per M²
  25. 90mm Ecotherm Eco-Cavity Full Fill Insulation 1200mm x 450mm (4’ x 1.5’) Pack of 4 (2.16m²)
    90mm Ecotherm Eco-Cavity Full Fill Insulation 1200mm x 450mm (4’ x 1.5’) Pack of 4 (2.16m²)
    £57.95 Inc VAT
    £26.83 Per M²
  26. 70mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    70mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £33.95 Inc VAT As low as £30.23 Inc VAT
    £11.78 Per M²
    Out of stock
  27. 75mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    75mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £34.79 Inc VAT As low as £30.95 Inc VAT
    £12.08 Per M²
    Out of stock
  28. 90mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    90mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £42.35 Inc VAT As low as £37.43 Inc VAT
    £14.70 Per M²
    Out of stock
  29. 30mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    30mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £19.07 Inc VAT As low as £16.31 Inc VAT
    £6.62 Per M²
    Out of stock
  30. 60mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4') Quantity Discount
    60mm EcoTherm Eco-Versal Insulation Board 2400mm x 1200mm (8' x 4')
    £32.15 Inc VAT As low as £27.71 Inc VAT
    £11.16 Per M²
    Out of stock

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