Interior Wall Insulation Wirral

Whether it’s a period property, a well used agricultural building or business premises, if it has solid brick, masonry or stone walls they will be seeping heat like a sieve. Heritage building, conservation area or listed status generally means that exterior cladding is out of the question. So with no significant cavity between your inner and outer skin (i.e. greater than 40mm), standard practice on pre-1930 buildings, there are just two options left; either fix everything with the exception of the the walls and accept that at the least 30% of your heat shall be lost through them, or contact our team for more information on interior wall insulation Wirral and accept that you’ll lose about 90-100mm of internal living area. While you may not want to lose any floor space, when you experience the comfort the insulation brings you’ll quickly get over it. The benefits of Interior Wall Insulation (IWI) are substantial and far outweigh any downsides.


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Retrofitting Interior Wall Insulation to an occupied property is not a job for the faint hearted, but regretfully it’s essential for the long term sustainability of the building. If 30% of your heating bill is £500 this year, five years ago it would have been £200 and in another five years it could be £1000 annually. This is effectively the price of having interior wall insulation Wirral.


Thermal Wall coating helps rendering wirral keep the heat in your home

Thermal Wall Coating

Virtually 45% of the all the heat in your house is seeping through your walls. The reason for the prodigious amount of heat loss through your walls is due to the moisture that finds it way from the outside in. Our masonry clear thermal coating can eliminate this by chemically bonding with the surface and creating an invisible insulation barrier. Our dirt resistant emulsion can also create this barrier for rendered houses while at the same time protecting against all types of weathering and decay.

Retrofit Challenges

The difficulties for those fitting Interior Wall Insulation include the need to maintain period features such as architraves or solid wood paneling, and the resetting of skirting boards, electrics, water lines, radiators and carpeting to suit the new wall which is 4″ thicker than it was previously. IWI is much easier if you’re refurbishing or remodeling the whole building.


IWI Options

Interior Wall Insulation options range from a very slim Space Therm blanket (ridiculously expensive), multi-layer foil with insulated wadding (fiddily and hard to complete, particularly at the edges), hygroscopic hemp or wood fibre boards (limited thermal performance & potential for odours), expanded polystyrene or phenolic panels (fine if fitted properly but prone to air gaps and condensation*), or spray-in foam insulation (quick, effective, airtight & no waste but only suitable for large areas).



Common practice is normally to fix insulated PIR bards directly to the wall or into a frame. It works well on paper and, if fitted accurately, in practice too. The issue is some hasty building firms have a habit of rushing and leaving gaps. Unless the PIR boards fit flawlessly to fully insulate the complete wall, heat can escape through the gaps to warm the void space between your insulation and the cool exterior wall. Condensation then forms in what is generally an unventilated space, then damp, then mould, then odours then troubles. It might look ok when the gaps are hidden with tape, but tape doesn’t stop heat escaping. It’s much better to avoid the gaps and the void space behind the insulation by having interior wall insulation Wirral fitted properly by the experts.

stop the rot and prevent condensation with internal wall insulation wirral


We use the very latest systems and can offer you a full 10 year warranty on all of our products and systems.

The systems that we use for rendering Wirral have been tried and tested by over 90% of the nationwide property builders who need something that not just looks great but is low maintenance and will not need painting later on. The products we use look better, last longer and are crack-resistant. Be it commercial, residential, new build or refurbishment. We at Environmental Protective Coatings have a solution together with a system that will be exactly suited to your specific project, whatever it might be!

20 year guarantee
eco friendly
100% satisfaction guarantee

Save Energy. Save Money. Protect your Property.