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How Much Does Spray Foam Insulation Cost?



Spray foam insulation is the best option for homeowners looking to improve the energy efficiency of their homes and reduce their carbon emissions. The UK housing market has an insulation problem, with roughly two-thirds of homes being rated a D or below in their Energy Performance Certificate (EPC). These low ratings are causing two major issues across the country: high carbon emissions and expensive energy bills. To address these issues and meet its goal of becoming net zero by 2050, the government is encouraging homeowners to invest in good-quality insulation.

Use our handy cost calculator below to get an instant estimated quote!

While our cost calculator provides a useful estimation, it's important to remember that each property is unique and numerous factors can influence the final cost of installation. For a precise quote, a home visit from an approved installer is necessary.


Spray foam insulation is a top choice due to its high R value and ability to effectively lock in heat. The average R value of spray foam insulation is between 5.6 and 8 per inch, much higher than other forms of insulation. This means that homeowners will quickly make their money back through savings on their monthly energy bills. Studies verified by Checkatrade have shown that spray foam insulation can save homeowners up to 50% on their energy bills when compared to traditional home insulation products. On average, the cost of spray foam insulation for the loft of a three-bedroom semi-detached property is typically around £4,075, but it can be as low as £2,000 depending on factors such as the height of your ridge or the thickness of insulation needed. While it may be more expensive than other types of home insulation, spray foam is highly effective at locking in heat and can save homeowners money on energy bills in the long run. Despite its higher upfront cost, the investment in spray foam insulation is worth it for the increased energy efficiency and long-term savings it provides.


Currently, the UK government is offering a 0% VAT rate on spray foam insulation to keep homes warming, increase EPC ratings and reduce energy bills. To find the best deals on spray foam insulation, simply fill out a quick form and connect with trusted installers. They will provide you with their best insulation deals and help you choose the right option for your home.



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