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Solid Wall Insulation Explained

Internal and External Solid Wall Insulation, Energy Perfromance, Savings, Benefits And Different Ways To Pay For The Energy Efficient Measure 

Are you considering installing solid wall insulation in your home? If so, you’re likely wondering what it is and how it works. This wall Insulation blog post will explain everything you need to know about solid wall insulation, including what materials are used and how they can save you money on your energy bills. Keep reading to learn more!

What Is Solid Wall Insulation?

Retrofit installers use the insulation materials on the external face or internal face of the solid wall to make the property energy efficient.wall Insulation improves the thermal mass of the property and acts as a restriction to save heat loss. Insulation materials can be made of breathable and non-breathable materials. The Materials Retrofit Installers’ use depends on the property construction type. Older properties are more porous, and modern new construction houses are built with less porous materials. 

Solid wall Insulation’s Bonus Benefit

The bonus benefit of the insulation, it minimises the noise from outside. Render is always required to protect the external wall insulation, making the property new. 

How Does Wall Insulation Work?

Any insulation works by slowing down the flow of heat. In the winter, this means that heat generated inside your home will take longer to escape, helping to keep your home warm. In the summer, insulation helps to keep cool air from escaping, making your home more comfortable. While both wall insulation and traditional insulation work, in the same way, there are some key differences. Cavity wall insulation Glasgow is usually more expensive to install, but it can provide better energy efficiency in the long run.

Is Wall Insulation Right Choice For My Home?

The type of wall insulation required for a property depends on the kind of wall. Internal wall insulation has fewer requirements compared to external. Nowadays, the Government has already set a standard called retrofit PAS 2035. There is a procedure to check which measure is suitable for the property. Therefore, external wall insulation has a higher thermal resistance and is more effective than internal solid wall insulation. It is also necessary to consider the U-value of the existing solid walls when selecting an insulation system. The U-value measures heat loss, and the lower the U-value, the more thermally efficient the product is. Choosing an insulation system with a low U-value is essential to maximise energy savings.

Internal Vs External Solid Wall Insulation

There are various insulation factors to consider .when deciding whether to insulate your walls from the inside or the outside. One of the most important is budget – external insulation can be more expensive than internal but may also qualify for government subsidies. Another essential key consideration is what you hope to achieve with the insulation. Internal insulation may be sufficient if you’re mainly concerned with boosting energy efficiency. Still, if you’re also hoping to improve your home’s appearance, external wall cladding may be a better option. Other things to bear in mind include any potential obstructions (pipes, wiring, etc.) and the amount of time you’re willing to dedicate to the project – external insulation can be disruptive and messy. Ultimately, the best way to decide is to speak to a retrofit coordinator, who advises after checking the reports of the retrofit assessors on the best option for your home.  

Who Can Install Internal Solid Wall Insulation

Retrofit installers are a reliable and cost-effective way to improve the energy efficiency of your home or business. Retrofit installers can install the external wall insulation; they are qualified and certified to install to the PAS2035 standard. External wall insulation can be retrofitted to any building, including solid walls. It works by creating a thermal barrier between the inside and outside of the building, reducing heat loss and making it easier to keep the inside of the building warm in winter and cool in summer. Retrofit installers are trained professionals qualified to install external wall insulation to the PAS2035 standard.

How To Install Internal Solid Wall Insulation? 

Wall insulation is a process whereby insulation material is added to the wall to reduce heat transfer. The most common wall insulation type is fiberglass batts, sheet-like pieces of glass wool installed between the wall studs. Another type of wall insulation is loose-fill cellulose, made from recycled paper products and blown into the wall cavity. Finally, No matter what type of wall insulation you choose, it is essential to have a professional retrofit installed to ensure the property is safe from future disasters. 


The retrofit assessor is a professional who assesses property to determine whether it is suitable for wall insulation installation. The retrofit assessor will consider several factors when carrying out the assessment, including the type of property, its age and condition, and the level of insulation that is already in place. Once the evaluation has been carried out, the retrofit assessor will provide a report that will detail their findings and recommendations.

Design & Management 

Domestic Retrofit coordinators play an essential role in ensuring that buildings are well-insulated and energy-efficient. A retrofit coordinator is responsible for preparing the design for solid wall insulation. This process includes identifying the most suitable type of insulation for the building, calculating the required amount of insulation, and specifying the installation details. The retrofit coordinator also liaises with the installer to ensure that the work is carried out to the required standard. In some cases, the retrofit coordinator may also be responsible for carrying out the work themselves.


A retrofit installer is responsible for managing the materials after checking the retrofit design from the coordinator. They will then communicate with the customer to arrange a suitable install day and carry out the installation. The retrofit installer should understand the retrofit process and work efficiently and effectively to meet deadlines. Retrofit professional installers should also be able to troubleshoot any problems that may arise during the installation process.

Materials For Internal And External  Wall Insulation 

You should always check the materials before buying insulation. Make sure that the insulation material is suitable for your property. Some properties absorb and release the moisture while others don’t. If your property absorbs and releases moisture, you will need a particular insulation material.

Warranty & Aftercare 

Any time you have work done on your home, it’s essential to ensure that you’re covered if something goes wrong. That’s why many companies offer warranties on their products and services. The installer provides you with a warranty when wall insulation is installed. This warranty will cover any damages that occur due to the installation. If something does go wrong, you’ll be able to file a claim and get compensated for the repairs. As a result, a warranty can provide you with an extra sense of security and peace of mind.


wall insulation is not just about filling in the gaps. Follow the tips provided by the installer and see how much of a difference wall insulation can make in your home. The installer will also provide you with guides on using your heating differently. You are no longer losing heat as much heat as before the wall insulation was installed, so you need to use that heat efficiently. You’ll be more comfortable with how much warmer your home feels and how much money you save on your energy bills. wall insulation is an investment that will pay for itself many times over, so don’t hesitate to get it installed in your home today. 

How To Check The Wall Type Of The Property?

There are many different types of property construction. It is not easy to find out quickly the kind of wall for your home. If you’re not experienced in construction, the process can be daunting. However, with the right type of research and guidance, you can easily select the best kind of wall for your needs. 

There are a few ways explained below help to check your wall type.

Energy Perfromance Certificate 

The property construction type is always mentioned in the energy performance certificate. It states cavity, slid brick, timber frame and system build. Apart from the cavity wall, all the rest are solid walls.

Confusion Between The Cavity And Solid Wall 

Measure tape and the brickwork pattern to differentiate between the solid and cavity wall. Stretcher Bond is a sign to distinguish the cavity wall from a solid wall. 

Home Report 

Home reports are essential for giving buyers an accurate and impartial view of a property before making an offer. A home report also highlights the wall type, which can help understand the property construction type, solid or cavity.

Building Surveyors 

Building surveyors play an essential role in the construction industry. They can inspect buildings and identify the type of construction used.

Is Wall Insulation Worth It?

Solid wall insulation is worth it – it will pay for itself in energy savings alone. Not to mention, it will make your home more comfortable and quieter. It’s a wise investment that will save you money in the long run.

How Much Can I Save With Wall Insulation From Energy Bills?

‘You need to do a retrofit assessment to know how much money you can save on your energy bills. The assessor will complete a property energy report, condition report and occupancy details. They will look at how you use your property and then tell you how much money you can save. Energy Savings can be anywhere from £20 per year to £400 per year. It all depends on where you live and what type of property it is.

Payment Options For Solid Wall Insulation

Most of the time, people pay for the insulation in their homes differently. One option is to pay for it out of your savings. Another option is to apply for an interest-free loan, And the third option is to take advantage of government funding schemes. Each opportunity to pay for the insulation has its advantages and disadvantages, so it’s essential to carefully select the way to pay that best suits your insulation needs. If you have saved money and want to get it back, paying for insulation outright is the quickest and easiest way to install it. However, if you don’t have the money saved, an interest-free loan can help you finance the project without incurring additional costs. And if you’re struggling to pay for insulation, several government schemes can help cover the cost. Any option you choose to improve your property, make sure you compare prices and get quotes from a few different companies before deciding.

  • Savings 
  • Interest-Free Loans 
  • Grants And Energy Saving Schemes 

Frequently Asked Questions About The Wall Insulation 

How Much Does Wall Insulation Cost?

It can cost more than £40 per square meter to have solid wall insulation installed in your home. However, this is a one-time expense that will save you money on your energy bills in the long run. In addition, it will make your home more comfortable.

Why does the Government Pay for the Solid wall Insulation?

The UK government offers a PHP (primary housing project) subsidy to insulate lofts and external walls. Loft insulation Glasgow and wall insulation can help reduce draughts, lessen condensation and mould growth, and make homes more accessible to heat, improving people’s health and well-being and saving on fuel bills. Fewer fuel bills mean less usage of fossil fuels. Less fossil fuel usage protects the environment and helps the Government achieve its targets to protect the planet.

What Is Internal Solid Wall Insulation?

Internal solid wall insulation is installed inside the property framing of a house to insulate against temperature changes. Ensuring that the insulation is installed correctly is essential to achieving the desired results.

What Is External Solid Wall Insulation?

External wall Insulation is essential to keep your house warm in the winter. Wall insulation is typical wall insulation installed outside of the home. This type of insulation helps keep the home warm in the winter.

Is Planning Permission Required To Install The Solid Wall Insulation?

If you plan to install external insulation or Under Floor Insulation , it is essential to check with your local council to see if you need permission. Most of the time, you do not need permission as long as the work does not change how your property looks. But if your home is in a conservation area, you must apply for permission before doing the work. Suppose that not doing so could lead to fines or your property being torn down. So always check with your local council first to be safe.

If you’re looking for a way to save on your energy bills, installing solid wall insulation is the key. And before you start making any other home improvements, it’s always best to invest in this essential step. Luckily, plenty of funding schemes are available to help make insulating your home more affordable. So why not call All Heating One today and see how we can help? We would be happy to share the information about our range of solutions and find the perfect one for your needs.

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