How Does External Wall Insulation Add Value to Your Home?

Jub Systems • Aug 31, 2022

Research conducted by gov.uk has proven that having external wall insulation installed does add value to your home. In this blog article, we’ll go through the different aspects of how this type of insulation increases the value of a property, which is one of the biggest benefits of EWI installation.

Improving Your EPC Rating

There are other factors such as location and size that will have a major impact on the saleability of a home/property. However, with rising living costs and current climate conditions, buyers are also looking at how energy efficient a property is.


EPC stands for Energy Performance Certificate, which is based on a scale from A to G, with A being the highest and G being the lowest.


The fact that external wall insulation will inevitable better your EPC rating is one of the main reasons your home or property can sell for more on the market compared to properties that fall on the lower bands. 


In comparison to other types of insulation, EWI can make one of the biggest improvements in EPC rating, sometimes helping a property jump to two bands above its current one.


Enhances the External Appearance

“It’s what’s on the inside that matters.” It may very well be that way but you can’t help but appreciate the outside as well. When it comes to renovating a home or a property, people start with the inside, which can make a huge difference in its saleability. However, renovating the outside can be just as important. 


Having unattractive exterior walls will in the end take away from the overall aesthetic of the property even if the inside has been done up to a high standard. Having EWI installed will beautify the outside and thus add aesthetic value to the overall market price.


How Much Value Will External Wall Insulation Add?



With the current market, it is difficult to give an exact estimate as property prices aren’t stable and acting as rational as they used to. However, the data collected from a survey conducted by gov.uk states that: 


“If the market (in this case in the form of surveyors) were behaving rationally, financial benefits worth approximately £8,000 would be taken into account by surveyors when valuing properties post-installation of EWI, comprising £5,000 from energy cost savings over a 36-year period plus an uplift of £3,000 due mainly to an improvement in the appearance and condition of the property.“

Other Benefits of EWI

Here are several more benefits of having external wall insulation installed:


  • Keeps your house warm in winter and cool in the summer
  • Offers a longer lifespan for the walls
  • Reduces condensation, which will reduce the risk of damp
  • Improves the weatherproofing and sound resistance of the walls
  • Reduce heat loss and CO2 emissions
  • Reduces energy bills

Finding an External Wall Insulation Installer

JUB Systems UK has developed a long-term relationship with render and EWI installers nationwide and has assessed them to the highest standards to be included in our JUB Pro Contractors list.


We can help you find the expert installer you need for your project. Get in touch with our team!


There are also several grants available that can cover some or all the costs involved with having external wall insulation installed. Eligibility criteria will need to be met but we are happy to help you find out if there is anything available for your current situation.

Modern detached house in the UK with JUB EWI and external render installed.

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