Airtight & Windtight Systems

Airtightness and Widtightness are essential aspects to consider when building or renovating. Air leakage into and out of a property can be detrimental to the thermal performance of insulation. Creating an airtight seal in the property helps minimize heat loss or gain and eliminates drafts ensuring a consistent indoor temperature. It also helps eliminate the entry of pollutants, allergens, and moisture, resulting in a healthier indoor environment. 

Shop our range of airtight membranes, tapes, grommets, and sealants.

Airtight and windtight systems | Insulation Merchant

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Airtight & Windtight Membranes

Airtight & Windtight Membranes

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Airtight and windtight systems | Insulation Merchant

Airtight & Windtight Tapes and Sealants

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Liquid Airtight Membranes

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Airtight Grommets

Airtight Grommets

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  • Airtight and windtight systems | Insulation Merchant 60mm Pro Clima Tescon Vana - Airtight Tape (30m) | Insulation Merchant
    Sale
    TESCON by Pro Clima

    60mm Pro Clima Tescon Vana - Airtight Tape (30m)

    £25.21
    £0.84 per LM (linear metre)
    £21.01 ex. VAT
    £0.70 per LM (linear metre)
    £25.21
    £0.84 per LM (linear metre)
    £25.70 Save £0.49
    £21.01 ex. VAT
    £0.70 per LM (linear metre)
    £21.42 Save £0.41
  • Pro Clima Contega Solido SL80 (Internal Single-sIded Corner Adhesive Tape) - 80mm x 30m Pro Clima Contega Solido SL80 (Internal Single-sIded Corner Adhesive Tape) - 80mm x 30m
    Sale
    CONTEGA SOLIDO SL by Pro Clima

    Pro Clima Contega Solido SL80 (Internal Single-sIded Corner Adhesive Tape) - 80mm x 30m

    £40.25
    £1.34 per LM (linear metre)
    £33.54 ex. VAT
    £1.12 per LM (linear metre)
    £40.25
    £1.34 per LM (linear metre)
    £41.30 Save £1.05
    £33.54 ex. VAT
    £1.12 per LM (linear metre)
    £34.42 Save £0.88
  • Pro Clima Tescon Sprimer Spray Can Primer Pro Clima Tescon Sprimer Spray Can Primer
    Sale
    TESCON by Pro Clima

    Pro Clima Tescon Sprimer Spray Can Primer

    From £11.58
    From £9.65 ex. VAT
    From £11.58
    £11.77 Save £0.19
    From £9.65 ex. VAT
    £9.81 Save £0.16
  • Pro Clima Orcon F - Flexible airtight solid acrylic sealant (310ml Cartridge) Pro Clima Orcon F - Flexible airtight solid acrylic sealant (310ml Cartridge)
    Sale 4%
    ORCON F by Pro Clima

    Pro Clima Orcon F - Flexible airtight solid acrylic sealant (310ml Cartridge)

    £7.46
    £1.24 per m
    £6.22 ex. VAT
    £1.04 per m
    £7.46
    £1.24 per m
    £7.80 Save £0.34
    £6.22 ex. VAT
    £1.04 per m
    £6.50 Save £0.28
  • Pro Clima Intello Plus - Vapour Check Membrane | Insulation Merchant Pro Clima Intello Plus - Vapour Check Membrane | Tescon Vana | Insulation Merchant
    Sale 10%
    INTELLO PLUS by Pro Clima

    1.5m Pro Clima Intello Plus - Vapour Check Membrane (50m)

    £223.50
    £2.98 per m²
    £186.25 ex. VAT
    £2.48 per m²
    £223.50
    £2.98 per m²
    £249.30 Save £25.80
    £186.25 ex. VAT
    £2.48 per m²
    £207.75 Save £21.50
  • Pro Clima | Intello Plus | Insulation Merchant Pro Clima | Intello Plus | Teson Vana | Insulation Merchant
    Sale 10%
    INTELLO PLUS by Pro Clima

    1.5m Pro Clima Intello Plus (Small Handy Rolls) - Vapour Check Membrane (20m)

    £92.92
    £3.09 per m²
    £77.43 ex. VAT
    £2.58 per m²
    £92.92
    £3.09 per m²
    £103.70 Save £10.78
    £77.43 ex. VAT
    £2.58 per m²
    £86.42 Save £8.98
  • Pro Clima Solitex Plus - Vapour Permeable Membrane (1.5m x 50m / 75m²) Pro Clima Solitex Plus - Vapour Permeable Membrane (1.5m x 50m / 75m²)
    Sale 10%
    SOLITEX PLUS by Pro Clima

    Pro Clima Solitex Plus - Vapour Permeable Membrane (1.5m x 50m / 75m²)

    £221.00
    £2.94 per m²
    £184.17 ex. VAT
    £2.46 per m²
    £221.00
    £2.94 per m²
    £246.50 Save £25.50
    £184.17 ex. VAT
    £2.46 per m²
    £205.42 Save £21.25
  • Pro Clima Tescon Profil (Corner Adhesive Tape) - 30m x 60mm (12/48mm Split) Pro Clima Tescon Profil (Corner Adhesive Tape) - 30m x 60mm (12/48mm Split)
    Sale
    TESCON by Pro Clima

    Pro Clima Tescon Profil (Corner Adhesive Tape) - 30m x 60mm (12/48mm Split)

    £31.83
    £1.06 per LM (linear metre)
    £26.53 ex. VAT
    £0.88 per LM (linear metre)
    £31.83
    £1.06 per LM (linear metre)
    £32.60 Save £0.77
    £26.53 ex. VAT
    £0.88 per LM (linear metre)
    £27.17 Save £0.64
  • Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²) Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²)
    Sale
    DA by Pro Clima

    Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²)

    £74.08
    £2.46 per m²
    £61.73 ex. VAT
    £2.06 per m²
    £74.08
    £2.46 per m²
    £75.00 Save £0.92
    £61.73 ex. VAT
    £2.06 per m²
    £62.50 Save £0.77
  • Pro Clima Tescon Invis - 60mm x 30m Pro Clima Tescon Invis - 60mm x 30m
    Sale
    TESCON by Pro Clima

    Pro Clima Tescon Invis - 60mm x 30m

    £23.58
    £19.65 ex. VAT
    £23.58
    £24.20 Save £0.62
    £19.65 ex. VAT
    £20.17 Save £0.52
  • Pro Clima Solitex Plus (Small Handy Roll) - Vapour Permeable Membrane (1.5m x 15m / 22.5m²) Pro Clima Solitex Plus (Small Handy Roll) - Vapour Permeable Membrane (1.5m x 15m / 22.5m²)
    Sale 10%
    SOLITEX PLUS by Pro Clima

    Pro Clima Solitex Plus (Small Handy Roll) - Vapour Permeable Membrane (1.5m x 15m / 22.5m²)

    £81.00
    £3.60 per m²
    £67.50 ex. VAT
    £3.00 per m²
    £81.00
    £3.60 per m²
    £90.40 Save £9.40
    £67.50 ex. VAT
    £3.00 per m²
    £75.33 Save £7.83
  • Pro Clima Tescon No. 1 Sealing Adhesive Tape - 60mm x 30m Pro Clima Tescon No. 1 Sealing Adhesive Tape - 60mm x 30m
    Sale
    TESCON by Pro Clima

    Pro Clima Tescon No. 1 Sealing Adhesive Tape - 60mm x 30m

    £28.75
    £1.59 per m²
    £23.96 ex. VAT
    £1.33 per m²
    £28.75
    £1.59 per m²
    £29.50 Save £0.75
    £23.96 ex. VAT
    £1.33 per m²
    £24.58 Save £0.63
  • 60mm Pro Clima Uni Tape - Airtight Tape (30m) | Insulation Merchant 60mm Pro Clima Uni Tape - Airtight Tape (30m) | Insulation Merchant
    Sale 7%
    UNI TAPE by Pro Clima

    60mm Pro Clima Uni Tape - Airtight Tape (30m)

    £18.30
    £0.61 per LM (linear metre)
    £15.25 ex. VAT
    £0.51 per LM (linear metre)
    £18.30
    £0.61 per LM (linear metre)
    £19.70 Save £1.40
    £15.25 ex. VAT
    £0.51 per LM (linear metre)
    £16.42 Save £1.17
  • Pro Clima DA - Membrane (1.5m x 50m / 75m²) Pro Clima DA - Membrane (1.5m x 50m / 75m²)
    DA by Pro Clima

    Pro Clima DA - Membrane (1.5m x 50m / 75m²)

    £167.92
    £2.23 per m²
    £139.93 ex. VAT
    £1.87 per m²
    £167.92
    £2.23 per m²
    Save £-167.92
    £139.93 ex. VAT
    £1.87 per m²
    £0.00 Save £-139.93
  • Pro Clima Tescon Primer RP (1L bottle) Pro Clima Tescon Primer RP (1L bottle)
    Sale 7%
    TESCON by Pro Clima

    Pro Clima Tescon Primer RP (1L bottle)

    £18.30
    £0.24 per LM (linear metre)
    £15.25 ex. VAT
    £0.20 per LM (linear metre)
    £18.30
    £0.24 per LM (linear metre)
    £19.80 Save £1.50
    £15.25 ex. VAT
    £0.20 per LM (linear metre)
    £16.50 Save £1.25
  • 100mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m) | Insulation Merchant 100mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m) | Insulation Merchant
    Sale
    TESCON by Pro Clima

    100mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m)

    £44.08
    £1.46 per LM (linear metre)
    £36.73 ex. VAT
    £1.22 per LM (linear metre)
    £44.08
    £1.46 per LM (linear metre)
    £45.30 Save £1.22
    £36.73 ex. VAT
    £1.22 per LM (linear metre)
    £37.75 Save £1.02
  • 60mm SIGA Sicrall® 60 - VCL Jointing Airtight Tape (40m) | Insulation Merchant 60mm SIGA Sicrall® 60 - VCL Jointing Airtight Tape (40m) | Insulation Merchant
    Winter Deals
    SICRALL® 60 by SIGA

    60mm SIGA Sicrall® 60 - VCL Jointing Airtight Tape (40m)

    £31.17
    £0.77 per LM (linear metre)
    £25.98 ex. VAT
    £0.65 per LM (linear metre)
    £31.17
    £0.77 per LM (linear metre)
    Save £-31.17
    £25.98 ex. VAT
    £0.65 per LM (linear metre)
    £0.00 Save £-25.98
  • Pro Clima Pressfix Tool
    PRESSFIX by Pro Clima

    Pro Clima Pressfix Tool

    £3.25
    £2.71 ex. VAT
    £3.25
    Save £-3.25
    £2.71 ex. VAT
    £0.00 Save £-2.71
  • Pro Clima Contega Solido EXO80 (External Single-sIded Corner Adhesive Tape) - 30m x 80mm Pro Clima Contega Solido EXO80 (External Single-sIded Corner Adhesive Tape) - 30m x 80mm
    Sale
    CONTEGA SOLIDO EXO by Pro Clima

    Pro Clima Contega Solido EXO80 (External Single-sIded Corner Adhesive Tape) - 30m x 80mm

    £40.25
    £1.34 per LM (linear metre)
    £33.54 ex. VAT
    £1.12 per LM (linear metre)
    £40.25
    £1.34 per LM (linear metre)
    £41.30 Save £1.05
    £33.54 ex. VAT
    £1.12 per LM (linear metre)
    £34.42 Save £0.88
  • Pro Clima Solitex Fronta WA - Wall Lining Membrane (1.5m x 50m) Pro Clima Solitex Fronta WA - Wall Lining Membrane (1.5m x 50m)
    SOLITEX FRONTA WA by Pro Clima

    Pro Clima Solitex Fronta WA - Wall Lining Membrane (1.5m x 50m)

    £141.58
    £117.98 ex. VAT
    £141.58
    Save £-141.58
    £117.98 ex. VAT
    £0.00 Save £-117.98