Cork Spray Insulation
Cold rooms in winter? Overheating in summer? Damp walls and mould all year round? Cork Spray Insulation fixes all three - without losing floor space or ripping your walls apart.
One upgrade, year-round comfort and lower bills.
Cork Spray is a natural, breathable coating sprayed directly onto your walls or ceilings - just a few millimetres thick. It works as a year-round temperature buffer, keeping heat in during winter and out during summer, while letting moisture escape instead of trapping it as damp or mould.
As UK summers get hotter, that two-way performance is what makes cork spray different from traditional insulation, which is usually built for winter alone.
Key benefits for clients
Warmer rooms in winter, cooler rooms in summer - cork’s insulating properties work both ways.
Lower energy bills year-round - less reliance on heating in winter and less need for fans or air conditioning in summer.
No more mould and condensation battles - cork is naturally breathable, letting moisture escape instead of getting trapped and turning into damp patches or mould.
Doesn’t shrink your room - unlike internal wall insulation boards (often 50–100mm thick), cork spray adds only a few millimetres. No moving radiators, no rebuilding skirting boards or sockets, no lost floor space.
Works on older, imperfect walls - flexible and crack-resistant, so it copes well with the natural movement in older or solid-wall properties where rigid insulation can fail.
Quieter rooms - cork also dampens sound transfer between rooms and from outside.
A finish that suits your home - can be tinted and textured to match your interior or exterior style.
Renewable and sustainable - harvested from cork oak bark without cutting the tree down, so it’s a guilt-free, low-impact choice.
Is this right for my home?
Cork Spray is ideal for both internal and external insulation, especially in areas prone to cold spots or moisture issues, including:
Bedrooms with cold external walls that attract mould.
Living rooms where sitting near a wall feels draughty.
Behind wardrobes, beds and sofa where air circulation is poor.
Bay windows, alcoves and corners prone to condensation.
Older solid-wall properties with no cavity to insulate.
Conservatories prone to temperature swings and condensation.
If any of these sound like your home, cork spray is very likely a strong fit.
Cork Spray Installation Process
TIWI-Accredited expertise you can trust.
Cork Spray is a specialist system that only performs as it should when it’s prepared, mixed and applied correctly. PP Plastering is a TIWI-Accredited Installer - an accreditation help by only a small number of professionals in the UK.
What this means for clients
You receive genuine, certified installation using approved methods and materials.
Your coating is applied by someone trained in the science of cork performance - breathability, thermal behaviour, moisture control and substrate compatibility.
You benefit from precise, specialist application techniques that maximise insulation, flexibility and durability.
Your property is assessed thoroughly to ensure cork spray is the right solution for your specific structure, moisture profile and long-term needs.
You gain confidence knowing the work meets strict industry standards, reducing the risk of cracking, poor adhesion or premature failure.
