Loft & Underfloor Insulation

Now is the best time to upgrade your loft or underfloor (suspended timber) insulation for the winter months. View our collection of insulation and accessories.
Loft & Underfloor Insulation
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  • LOFT LEG Loft Flooring Legs - Raise Loft Boards by 175mm (12 per box) LOFT LEG Loft Flooring Legs - Raise Loft Boards by 175mm (12 per box)
    LOFT LEG by Loft Leg

    LOFT LEG Loft Flooring Legs - Raise Loft Boards by 175mm (12 per box)

    €14,95
    €1,24 per ea
    €12,46 ex. VAT
    €1,04 per ea
    €14,95
    €1,24 per ea
    Save €-14,95
    €12,46 ex. VAT
    €1,04 per ea
    €0,00 Save €-12,46
  • LOFT LEG XL Loft Flooring Legs - Raise Loft Boards by 300mm (12 per box) LOFT LEG XL Loft Flooring Legs - Raise Loft Boards by 300mm (12 per box)
    LOFT LEG by Loft Leg

    LOFT LEG XL Loft Flooring Legs - Raise Loft Boards by 300mm (12 per box)

    €17,95
    €1,49 per ea
    €14,96 ex. VAT
    €1,25 per ea
    €17,95
    €1,49 per ea
    Save €-17,95
    €14,96 ex. VAT
    €1,25 per ea
    €0,00 Save €-14,96
  • COROTOP Light - Breathable Membrane - 1m x 50m (50m²) COROTOP Light - Breathable Membrane - 1m x 50m (50m²)
    LIGHT by Corotop - Membranes

    COROTOP Light - Breathable Membrane - 1m x 50m (50m²)

    €37,95
    €0,75 per m²
    €31,63 ex. VAT
    €0,63 per m²
    €37,95
    €0,75 per m²
    Save €-37,95
    €31,63 ex. VAT
    €0,63 per m²
    €0,00 Save €-31,63
  • Insulation Support Netting - 1m x 100m
    Winter Deals
    SUPPORT NETTING by Insulation Merchant

    Insulation Support Netting - 1m x 100m

    €20,95
    €0,20 per m²
    €17,46 ex. VAT
    €0,17 per m²
    €20,95
    €0,20 per m²
    Save €-20,95
    €17,46 ex. VAT
    €0,17 per m²
    €0,00 Save €-17,46
  • Insulation Support Netting - 2m x 100m
    Winter Deals
    SUPPORT NETTING by Insulation Merchant

    Insulation Support Netting - 2m x 100m

    €41,95
    €0,20 per m²
    €34,96 ex. VAT
    €0,17 per m²
    €41,95
    €0,20 per m²
    Save €-41,95
    €34,96 ex. VAT
    €0,17 per m²
    €0,00 Save €-34,96
  • 100mm Superglass Multi-Roll 44 | Insulation Merchant 100mm Superglass Multi-Roll 44 | Insulation Merchant
    MULTI-ROLL 44 by Superglass

    100mm Superglass Multi-Roll 44

    €34,95
    €2,88 per m²
    €29,13 ex. VAT
    €2,40 per m²
    €34,95
    €2,88 per m²
    Save €-34,95
    €29,13 ex. VAT
    €2,40 per m²
    €0,00 Save €-29,13
  • 150mm Superglass Multi-Roll 44 | Insulation Merchant 150mm Superglass Multi-Roll 44 | Insulation Merchant
    MULTI-ROLL 44 by Superglass

    150mm Superglass Multi-Roll 44

    €32,95
    €4,27 per m²
    €27,46 ex. VAT
    €3,56 per m²
    €32,95
    €4,27 per m²
    Save €-32,95
    €27,46 ex. VAT
    €3,56 per m²
    €0,00 Save €-27,46
  • 200mm Superglass Multi-Roll 44 | Insulation Merchant 200mm Superglass Multi-Roll 44 | Insulation Merchant
    MULTI-ROLL 44 by Superglass

    200mm Superglass Multi-Roll 44

    €31,95
    €5,68 per m²
    €26,63 ex. VAT
    €4,73 per m²
    €31,95
    €5,68 per m²
    Save €-31,95
    €26,63 ex. VAT
    €4,73 per m²
    €0,00 Save €-26,63
  • 100mm Superglass Multi-Roll 40 | Insulation Merchant 100mm Superglass Multi-Roll 40 | Insulation Merchant
    MULTI-ROLL 40 by Superglass

    100mm Superglass Multi-Roll 40

    €38,95
    €3,33 per m²
    €32,46 ex. VAT
    €2,77 per m²
    €38,95
    €3,33 per m²
    Save €-38,95
    €32,46 ex. VAT
    €2,77 per m²
    €0,00 Save €-32,46
  • 150mm Superglass Multi-Roll 40 | Insulation Merchant 150mm Superglass Multi-Roll 40 | Insulation Merchant
    MULTI-ROLL 40 by Superglass

    150mm Superglass Multi-Roll 40

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    Add to a quote for our best rate.

  • 200mm Superglass Multi-Roll 40 | Insulation Merchant 200mm Superglass Multi-Roll 40 | Insulation Merchant
    MULTI-ROLL 40 by Superglass

    200mm Superglass Multi-Roll 40

    €46,95
    €8,80 per m²
    €39,13 ex. VAT
    €7,33 per m²
    €46,95
    €8,80 per m²
    Save €-46,95
    €39,13 ex. VAT
    €7,33 per m²
    €0,00 Save €-39,13
  • 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m²) | Insulation Merchant 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m²) | Insulation Merchant
    INDITHERM HEMP - 570 by IndiNature®

    50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (5.47m²)

    €44,95
    €8,22 per m²
    €37,46 ex. VAT
    €6,85 per m²
    €44,95
    €8,22 per m²
    Save €-44,95
    €37,46 ex. VAT
    €6,85 per m²
    €0,00 Save €-37,46
  • IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant
    INDITHERM HEMP - 570 by IndiNature®

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 570mm (2.74m²)

    €44,95
    €16,41 per m²
    €37,46 ex. VAT
    €13,67 per m²
    €44,95
    €16,41 per m²
    Save €-44,95
    €37,46 ex. VAT
    €13,67 per m²
    €0,00 Save €-37,46
  • 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m²) | Insulation Merchant 50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m²) | Insulation Merchant
    INDITHERM HEMP - 370 by IndiNature®

    50mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (3.55m²)

    €28,95
    €8,15 per m²
    €24,13 ex. VAT
    €6,80 per m²
    €28,95
    €8,15 per m²
    Save €-28,95
    €24,13 ex. VAT
    €6,80 per m²
    €0,00 Save €-24,13
  • IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant
    INDITHERM HEMP - 370 by IndiNature®

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²)

    €28,95
    €16,26 per m²
    €24,13 ex. VAT
    €13,55 per m²
    €28,95
    €16,26 per m²
    Save €-28,95
    €24,13 ex. VAT
    €13,55 per m²
    €0,00 Save €-24,13
  • 100mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant 100mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchantv
    COSYWOOL by Thermafleece

    100mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    €99,95
    €13,84 per m²
    €83,29 ex. VAT
    €11,54 per m²
    €99,95
    €13,84 per m²
    Save €-99,95
    €83,29 ex. VAT
    €11,54 per m²
    €0,00 Save €-83,29
  • 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    100mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    €101,95
    €13,76 per m²
    €84,96 ex. VAT
    €11,47 per m²
    €101,95
    €13,76 per m²
    Save €-101,95
    €84,96 ex. VAT
    €11,47 per m²
    €0,00 Save €-84,96
  • 150mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant 150mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    150mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    €98,95
    €20,74 per m²
    €82,46 ex. VAT
    €17,29 per m²
    €98,95
    €20,74 per m²
    Save €-98,95
    €82,46 ex. VAT
    €17,29 per m²
    €0,00 Save €-82,46
  • 150mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 150mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    150mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    €101,95
    €20,81 per m²
    €84,96 ex. VAT
    €17,34 per m²
    €101,95
    €20,81 per m²
    Save €-101,95
    €84,96 ex. VAT
    €17,34 per m²
    €0,00 Save €-84,96
  • Knauf Loft Roll 44 | Insulation Merchant Knauf Loft Roll 44 | Insulation Merchant
    Winter Deals
    Free Shipping
    LOFT ROLL by Knauf Insulation

    100mm Knauf Loft Roll 44 (Combi-Cut)

    €39,95
    €2,88 per m²
    €33,29 ex. VAT
    €2,40 per m²
    €39,95
    €2,88 per m²
    Save €-39,95
    €33,29 ex. VAT
    €2,40 per m²
    €0,00 Save €-33,29