Retrofit

Our expertise lies in providing advanced Retrofit solutions for both internal and external wall insulation, ensuring your home stays cosy while saving you money on energy bills.

With our wide range of wood fibre insulation, you can rely on year-round comfort. It keeps your house warm during chilly winters and pleasantly cool throughout the summer months.

Choose Insulation Merchant for a more comfortable, energy-efficient home that you'll love living in!

Retrofit Insulation | Insulation Merchant
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  • Pro Clima Contega Solido SL100 (Internal Single-sIded Corner Adhesive Tape) - 100mm x 30m | Insulation Merchant Pro Clima Contega Solido SL100 (Internal Single-sIded Corner Adhesive Tape) - 100mm x 30m | Insulation Merchant
    CONTEGA SOLIDO SL by Pro Clima

    Pro Clima Contega Solido SL100 (Internal Single-sIded Corner Adhesive Tape) - 100mm x 30m

    €60,95 EUR ex. GB VAT
    €2,03 per LM (linear metre)
    €60,95 EUR ex. GB VAT
    €2,03 per LM (linear metre)
    Save €-60,95
  • 25mm SKANDA Savolit Plus Wood Wool Board - 1200 x 600mm | Insulation Merchant 25mm SKANDA Savolit Plus Wood Wool Board - 1200 x 600mm | Insulation Merchant

    5.0

    SAVOLIT PLUS - 1200MM by Skanda Savolit

    25mm SKANDA Savolit Plus Wood Wool Board - 1200 x 600mm

    €12,95 EUR ex. GB VAT
    €17,99 per m²
    €12,95 EUR ex. GB VAT
    €17,99 per m²
    Save €-12,95
  • 80m Pro Clima Duplex Double Sided Membrane Tape | Insulation Merchant 80m Pro Clima Duplex Double Sided Membrane Tape | Insulation Merchant
    DUPLEX by Pro Clima

    80m Pro Clima Duplex Double Sided Membrane Tape

    €26,95 EUR ex. GB VAT
    €0,33 per LM (linear metre)
    €26,95 EUR ex. GB VAT
    €0,33 per LM (linear metre)
    Save €-26,95
  • 20mm STEICO Therm SD (wet) - 600mm x 1350mm - per board | Insulation Merchant 20mm STEICO Therm SD (wet) - 600mm x 1350mm - per board | Insulation Merchant
    Spring Savings
    THERM SD WET by Steico

    20mm STEICO Therm SD (wet) - 600mm x 1350mm - per board

    €4,95 EUR ex. GB VAT
    €6,11 per m²
    €4,95 EUR ex. GB VAT
    €6,11 per m²
    Save €-4,95
  • 75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    €97,95 EUR ex. GB VAT
    €10,11 per m²
    €97,95 EUR ex. GB VAT
    €10,11 per m²
    Save €-97,95
  • 40mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant 40mm STEICO Therm (wet) - 600mm x 1350mm - per board | Insulation Merchant
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    THERM WET by Steico

    40mm STEICO Therm (wet) - 600mm x 1350mm - per board

    €8,95 EUR ex. GB VAT
    €11,05 per m²
    €8,95 EUR ex. GB VAT
    €11,05 per m²
    Save €-8,95
  • ADAPTAVATE breathAplasta Thermal (Insulating Breathable Plaster) - 9kg bag | Insulation Merchant

    5.0

    THERMAL by Adaptavate

    ADAPTAVATE breathAplasta Thermal (Insulating Breathable Plaster) - 9kg bag

    €23,95 EUR ex. GB VAT
    €23,95 per m²
    €23,95 EUR ex. GB VAT
    €23,95 per m²
    Save €-23,95
  • 150mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m) | Insulation Merchant 150mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m) | Insulation Merchant
    TESCON by Pro Clima

    150mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m)

    €78,95 EUR ex. GB VAT
    €2,63 per LM (linear metre)
    €78,95 EUR ex. GB VAT
    €2,63 per LM (linear metre)
    Save €-78,95
  • 140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant 140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant

    5.0

    COSYWOOL by Thermafleece

    140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    €95,95 EUR ex. GB VAT
    €18,78 per m²
    €95,95 EUR ex. GB VAT
    €18,78 per m²
    Save €-95,95
  • 10mm PROCTOR Spacetherm® A1 Fire Rated Silica Aerogel Blanket - 2400mm x 1200mm (2.88m²) | Insulation Merchant
    SPACETHERM® by A. Proctor Group

    10mm PROCTOR Spacetherm® A1 Fire Rated Silica Aerogel Blanket - 2400mm x 1200mm (2.88m²)

    €286,95 EUR ex. GB VAT
    €99,64 per m²
    €286,95 EUR ex. GB VAT
    €99,64 per m²
    Save €-286,95
  • 40mm STEICOduo Dry - 600mm x 2230mm | Insulation Merchant
    Spring Savings

    5.0

    DUO DRY by Steico

    40mm STEICOduo Dry - 600mm x 2230mm

    €20,95 EUR ex. GB VAT
    €16,52 per m²
    €20,95 EUR ex. GB VAT
    €16,52 per m²
    Save €-20,95
  • SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m | Insulation Merchant SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m | Insulation Merchant
    Spring Savings
    MAJCOAT® 200 by SIGA

    SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m

    €316,95 EUR ex. GB VAT
    €4,22 per m²
    €316,95 EUR ex. GB VAT
    €4,22 per m²
    Save €-316,95
  • SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant
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    MAJREX® by SIGA

    SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²)

    €380,95 EUR ex. GB VAT
    €5,07 per m²
    €380,95 EUR ex. GB VAT
    €5,07 per m²
    Save €-380,95
  • CEWOOD Wood Wool Multi-purpose Board - Square Edge | Insulation Merchant CEWOOD Wood Wool Multi-purpose Board - Square Edge | Insulation Merchant
    MULTI-PURPOSE by Cewood

    CEWOOD Wood Wool Multi-purpose Board - Square Edge

    From €9,95 EUR ex. GB VAT
    €13,82 per m²
    From €9,95 EUR ex. GB VAT
    €13,82 per m²
    Save €-9,95
  • SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant
    Spring Savings
    MAJPELL® 5 VCL by SIGA

    SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²)

    €233,95 EUR ex. GB VAT
    €3,11 per m²
    €233,95 EUR ex. GB VAT
    €3,11 per m²
    Save €-233,95
  • 140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    COSYWOOL by Thermafleece

    140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    €98,95 EUR ex. GB VAT
    €18,88 per m²
    €98,95 EUR ex. GB VAT
    €18,88 per m²
    Save €-98,95
  • 25mm SKANDA Savolit Plus Wood Wool Board - 2400 x 600mm | Insulation Merchant 25mm SKANDA Savolit Plus Wood Wool Board - 2400 x 600mm | Insulation Merchant
    SAVOLIT PLUS - 2400MM by Skanda Savolit

    25mm SKANDA Savolit Plus Wood Wool Board - 2400 x 600mm

    €24,95 EUR ex. GB VAT
    €17,33 per m²
    €24,95 EUR ex. GB VAT
    €17,33 per m²
    Save €-24,95
  • ULTIMATE Value Wood Wool Building Board | Insulation Merchant ULTIMATE Value Wood Wool Building Board | Insulation Merchant
    BUILDING BOARD by Cewood

    ULTIMATE Value Wood Wool Building Board

    From €7,95 EUR ex. GB VAT
    €11,04 per m²
    From €7,95 EUR ex. GB VAT
    €11,04 per m²
    Save €-7,95
  • 100mm STEICO Special Dry 600mm x 2230mm - per board | Insulation Merchant 100mm STEICO Special Dry 600mm x 2230mm - per board | Insulation Merchant
    Spring Savings

    5.0

    SPECIAL DRY by Steico

    100mm STEICO Special Dry 600mm x 2230mm - per board

    €46,95 EUR ex. GB VAT
    €37,03 per m²
    €46,95 EUR ex. GB VAT
    €37,03 per m²
    Save €-46,95
  • 115mm EJOT ejotherm STR U 2G Masonry Screw in Anchors (Box of 100) | Insulation Merchant
    SCREW + WASHER by EJOT

    115mm EJOT ejotherm STR U 2G Masonry Screw in Anchors (Box of 100)

    €39,95 EUR ex. GB VAT
    €0,39 per screws
    €39,95 EUR ex. GB VAT
    €0,39 per screws
    Save €-39,95