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Solid Wall Insulation

Solid walls let twice as much heat escape as cavity walls. Browse our range of solid wall insulation and take the next step in heat loss prevention.
Celotex PL4000 Insulated Plasterboard (All Sizes) 2.4m x 1.2m


£36.46 --> £36.46 Ex. Vat  
£43.75 Inc. Vat  

Celotex PL4025 37.5mm 2.4m x 1.2m


£36.46 --> £36.46 Ex. Vat  
£43.75 Inc. Vat  

Celotex PL4050 62.5mm 2.4m x 1.2m


£44.69 --> £44.69 Ex. Vat  
£53.63 Inc. Vat  

Celotex PL4040 52.5mm 2.4m x 1.2m


£42.12 --> £42.12 Ex. Vat  
£50.54 Inc. Vat  

Celotex PL4060 72.5mm 2.4m x 1.2m


£45.87 --> £45.87 Ex. Vat  
£55.04 Inc. Vat  

Warmline XPS Insulated Plasterboard 1.2m x 2.4m - All Sizes


£23.56 --> £23.56 Ex. Vat  
£28.27 Inc. Vat  

Superfoil General Purpose Wrap 3mm x 7m x 1m


£17.49 --> £17.49 Ex. Vat  
£20.99 Inc. Vat  

Warmline PIR Insulated Plasterboard 1.2m x 2.4m - All Sizes


£37.40 --> £37.40 Ex. Vat  
£44.88 Inc. Vat  

Gyproc Thermaline Plus (2.4m x 1.2m) All Sizes

British Gypsum

£34.80 --> £34.80 Ex. Vat  
£41.76 Inc. Vat  

Superfoil SFBA MP - All Sizes


£51.14 --> £51.14 Ex. Vat  
£61.37 Inc. Vat  

Metal Mushroom Fixings (250 Per Box) - All Sizes


£50.43 --> £50.43 Ex. Vat  
£60.52 Inc. Vat  

Superfoil Pipe Wrap 8cm x 7.5m


£5.55 --> £5.55 Ex. Vat  
£6.66 Inc. Vat  

Danosa Acustidan Cavity Wall Insulation - All Sizes


£35.54 --> £35.54 Ex. Vat  
£42.65 Inc. Vat  

Actis Boost'R Hybrid 6.7m x 1.5m Reflective Breather Membrane


£64.90 --> £64.90 Ex. Vat  
£77.88 Inc. Vat  

Superfoil Rad Wrap 60cm x 5m


£17.81 --> £17.81 Ex. Vat  
£21.37 Inc. Vat  

SuperFOIL SFNC 20mm x 1.2m x 8.3m


£219.63 --> £219.63 Ex. Vat  
£263.56 Inc. Vat  

Solid Wall Insulation

Solid wall insulation can significantly cut your heating costs and will make your home, office, or any other building more comfortable. In the UK, if a house was built before the 1910s, then it most likely would have solid walls instead of the cavity walls.

Before talking about Solid Wall Insulation, it is important to know that solid walls have no gaps, which means that it is not possible to fill them with cavity wall insulation. On the other hand, there are two layers in the cavity walls, which has a small cavity or gap between them.

Similarly, you can insulate solid walls either from the outside or inside. However, this costs a lot more than the insulation of a standard cavity wall. At the same time, solid wall insulation has a much bigger advantage and that is bigger saving on the heating bills.

Internal Solid Wall Insulation

Internal solid wall insulation consists of the dry lining in forms of built-up systems or pre-insulated plasterboards using fibrous insulation, for instance, with the help of studwork frame, the holding of mineral wool in place.
In solid wall properties, internal wall insulation is considered a great option because most of the times, external insulation is not permissible and/or practical. Experts recommend dealing with damp issues before the installation of insulation. In general, internal wall insulation is more affordable than external insulation as you can do it room by room.

So, how does internal solid wall insulation work? Well, there are several techniques to insulate solid walls internally, which are often referred to as the dry lining. This involves the insulation of the inside of the wall by different techniques or methods using different materials.

The first method is to fix directly the readymade insulation boards to the wall, which typically consist of plasterboard with 50mm insulation material. The second method or technique is to attach the framework of wooden battens to the wall – filling the space between the battens with insulation materials. The third technique is about the attachment of the metal framework to the wall and then attaching the insulation boards to the metal frame.

External Solid Wall Insulation

External Solid Wall Insulation covers the external/outside of your house block thermal leaks. Your home’s external walls act like a barrier, which protects your house or property from the external cold elements and retain heat on the inside. The insulation of external walls is one of the perfect solutions when it comes to minimizing heat leakage and improving your home’s heating energy performance.

With external wall insulation, you can significantly reduce the loss of heat – thus also decreasing the amount on your heating bill. Similarly, external solid wall insulation can increase thermal efficiency by 85%. There is no loss of internal living space and disruptions to the household are likewise minimized.

In addition, your house will heat up quicker as well and you and your family will stay warmer for longer. As part of the solid wall insulation, you will get an attractive, weatherproof, and maintenance-free new external wall.

Advantages of Solid Wall Insulation

There are many benefits and/or advantages of Solid Wall Insulation. Experts from different companies across the UK say that the installation of solid wall insulation can save for you up to 650 pounds a year on the energy bill.

Additionally, the material used in this type of insulation is breathable and eliminates penetrating damp. Solid Wall insulation not only improves your exterior décor but also improve the damaged porous bricks and loose cracked render walls.

Most often, you will have 10 years of guarantee with little or no maintenance.

Your house will warm up quickly if you have solid wall insulation. That said, you don’t need to keep the heating on in order to reach a suitable or comfortable temperature.

So, it’s time to say goodbye to the condensation – because, without it, there will be less growth of mold – thus leading to a good healthy living environment.

When you install the external solid wall insulation, you will transform your home with a wide variety of traditional or contemporary finishes with a sophisticated choice of colors, textures, and finishing effects.

The loss of heat at high levels can result in a high carbon footprint. However, you can reduce these levels by installing solid wall insulation. This way, you will save money as well as play your role in the protection of the environment by reducing the levels of carbon emissions.

Let us now talk about the best solid wall insulation brand you can purchase at the most affordable prices.

Celotex Solid Wall Insulation

Celotex is a popular brand in the UK. It provides a high-performance, rigid polyisocyanurate insulation boards with double aluminum foils. The company provides composite products that feature high-performance thermal insulation tapered with edge plasterboards. Some of the best products are:

Celotex PL4050 62.5mm 2.4m x 1.2m

Celotex PL4040 52.5mm 2.4m x 1.2m

Celotex PL4025 37.5mm 2.4m x 1.2m

Celotex PL4060 72.5mm 2.4m x 1.2m

You can choose one of these products depending on your needs and requirements.

Recticel Insulation

Recticel is famous for its state-of-the-art insulation solutions for framed walls, solid walls, external walls, and plasterboards for internal wall insulation. Some of the best products are:

Recticel Eurothane PL 37.5mm 2.4m x 1.2m

Recticel Eurothane PL 62.5mm 2.4m x 1.2m

Recticel Eurothane PL 52.5mm 2.4m x 1.2m

Cost of Solid Wall Insulation

In general, the cost of Solid Wall Insulation depends on the type of material, the amount of area you want to cover, and the brand you want to use. However, it is important to know that external wall insulation is usually more expensive than internal solid wall insulation.

If you opt to install external solid wall insulation, then typically, a company in the UK will cost you between 8,000 pounds to 22,000 pounds. Likewise, internal solid wall insulation costs from about 3500 pounds to 14,500 pounds.


If your home’s walls are not insulated, then there is a higher risk of heat loss through the walls – causing damp that can lead to plaster and paint degradation, unstuck wallpapers, as well as the growth of mold and mites. Therefore, effective solid wall insulation can significantly limit condensation – helping to handle the issues related to damp.

Another issue that can cause harm to your health is noise pollution. You can reduce the disturbing noise traffic by installing solid wall insulation – because you will live comfortably when you have a quieter home. Lastly, a thermally-efficient and well-insulated home also provide fire-retardant properties, which certainly increase the value of your property.

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