How Does External Wall Insulation Add Value to Your Home?

Jub Systems • August 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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By Jub Systems • July 19, 2023
Introducing the Great British Insulation Scheme, previously known as ECO+, a government initiative aimed at helping households insulate their homes, improve energy efficiency and reduce energy bills. With the scheme already launched and set to run until March 2026, it's time to discover how this £1 billion programme can benefit households across the UK. In this blog post, we'll delve into the details of the scheme, its eligibility criteria and the range of energy-saving measures available. Benefits of the Great British Insulation Scheme The Great British Insulation Scheme aims to support approximately 300,000 households by providing financial assistance for home insulation. By participating in the scheme, households can save an estimated £300 to £400 per year on their energy bills. The focus is on helping those with the lowest incomes, while also extending support to households living in energy-inefficient homes with Energy Performance Certificate (EPC) ratings of D or below, as well as those in lower Council Tax bands (A-D in England, A-E in Scotland and Wales). This inclusive approach ensures that more people, especially those struggling with high energy costs, can benefit from making their homes more energy efficient. The Aim of the Great British Insulation Scheme  The Great British Insulation Scheme has a clear goal: to deliver single insulation measures to two main groups of customers. The first group consists of low-income individuals who do not meet the minimum requirements for ECO4 assistance. The scheme aims to provide them with valuable insulation measures to improve their living conditions. The second group includes households based on council tax band and Energy Performance Certificate (EPC) rating, targeting a wider range of individuals who can benefit from energy-saving upgrades.

External Render Repair and Maintenance: Preserving Your JUB Render

By Jub Systems • July 12, 2023
Welcome to our guide on external render repair and maintenance. Whether you have a JUB render and/or an external wall insulation system, proper maintenance is essential to ensure longevity and visual appeal. By following our step-by-step instructions, you can reduce the need for extensive render repairs in the future, saving you both time and money. Let's dive into the key steps for effective render repair and maintenance. Step 1: Thorough Cleaning and Primer Application Before starting any redecoration work, it's crucial to clean the external render thoroughly. Remove any visible dirt or dust from the surface, ensuring a clean and smooth base for the upcoming paint application. If necessary, treat the facade with JUB Fungi Wash to eliminate any fungal growth or contaminants. However, avoid using acid-based cleaners or solvents, as they can damage the external wall insulation system. To enhance the adhesion and durability of the new paint, we highly recommend applying an appropriate paint primer to the cleaned render. Step 2: Choosing the Correct Paint Choosing the correct paint is crucial for achieving a long-lasting and visually pleasing exterior finish. Take into account the type of render you have and consult our technical department at technical@jub.org.uk for guidance on the suitable paint product. Avoid using masonry paint that JUB Systems UK Limited hasn't advised to maintain warranties and prevent short-term maintenance cycles. Keep the original render's colour code on file for future reference to ensure accurate colour matching.

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