How Much Is Cavity Wall Insulation?

Cavity wall insulation is a highly effective way to reduce energy bills and improve the thermal efficiency of a property.

However, many people are put off by the perceived cost of cavity wall insulation, and are unsure of how much it will set them back.

In this blog post, we will explore the various factors that influence the cost of cavity wall insulation and provide a breakdown of the typical prices you can expect to pay.

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Factors Affecting Cavity Wall Insulation Cost

The cost of cavity wall insulation can vary significantly depending on a range of factors. Here are some of the key considerations that can impact the overall cost:
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Property size: The size of your property will be a major factor in determining the cost of cavity wall insulation. Larger properties will require more insulation material, which means a higher overall cost.
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Type of insulation material: There are various types of insulation materials available, each with its own pros and cons. Some materials, such as blown bead insulation, can be cheaper than materials like closed cell spray foam insulation.
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Installation method: The method used to install the insulation can also impact the cost. Some installation methods may be more time-consuming and require specialist equipment, which can drive up the cost.
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Access to the property: The accessibility of your property can also affect the cost of cavity wall insulation. If your property is difficult to access, the installation process may take longer and require more specialist equipment, which can increase the overall cost.

Cavity Wall Insulation Prices
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So, how much does cavity wall insulation cost? The cost can vary depending on the factors mentioned above, but here are some typical prices to give you an idea.
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Cavity wall insulation cost per m2

The cost of cavity wall insulation is often calculated based on the square meterage of the property.

The cost of cavity wall insulation can range from as low as £25 per square meter and up to £60 per square meter for the more expensive material such as closed-cell spray foam.

This means that if you have a typical semi-detached house with a wall area of 80m2, you can expect to pay around £2,000 to £4,800 for cavity wall insulation.
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Is Cavity Wall Insulation Worth the Cost?
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While cavity wall insulation can be a significant investment, it is worth considering the long-term benefits it can bring. Here are some of the key benefits of cavity wall insulation:
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Reduced energy bills: Cavity wall insulation can significantly improve the thermal efficiency of your property, which means you will need to use less energy to heat your home. This can result in lower energy bills and significant savings over time.

EDF estimates you can save up to 33% on your energy bills which means on average, the insulation can pay for it self in as little as 5 years.
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Improved comfort: Insulating your walls can help to keep your home warmer in winter and cooler in summer, which can make it a more comfortable place to live.
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Reduced carbon footprint: By using less energy to heat your home, you can reduce your carbon footprint and help to protect the environment.
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Increased property value: Insulating your home can increase its value, as it is an attractive feature for potential buyers. This means that you may be able to recoup some or all of the cost of the insulation when you come to sell your property.
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Reduced condensation: Cavity wall insulation can help to reduce condensation and damp, which can have a positive impact on the health of your home and its occupants.
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It is also worth noting that the cost of cavity wall insulation can be offset by various government schemes and incentives.

For example, the ECO+ offers vouchers to help cover the cost of energy-efficient fabric improvements, including cavity wall insulation.
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Cavity wall insulation is a highly effective way to improve the thermal efficiency of your home and reduce your energy bills. While the cost of insulation can vary depending on various factors, it is generally considered to be a worthwhile investment.
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By choosing the right type of insulation material and installation method, you can achieve significant savings over time, as well as other benefits such as increased comfort and reduced condensation.

If you are considering cavity wall insulation for your property, it is worth getting a quote from a reputable installer to get a more accurate idea of the cost.

Be sure to consider the factors mentioned in this post, and don't be afraid to ask questions or negotiate the price to ensure that you are getting a fair deal.

With the right insulation in place, you can enjoy a warmer, more comfortable home and a brighter, more sustainable future.

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