Internal Wall Insulation

What is Internal Wall Insulation

At ECO4, we help UK homeowners and tenants improve energy efficiency with free internal wall insulation through government-backed schemes like ECO4, GBIS, and LA FLEX. Ideal for solid wall properties, this insulation keeps your home warmer and cuts energy bills.

Even if you don’t meet standard criteria, LA FLEX lets local councils approve more households for support. Stay warm, save money, and reduce carbon emissions — check if you qualify today.

Understanding the ECO4 Scheme

The ECO4 scheme helps UK households cut energy bills and stay warm. If you qualify, you could get internal wall insulation fully or partially funded—perfect for homes where external insulation isn’t suitable. Improve your home’s EPC rating and comfort, with little to no upfront cost.

The Role of GBIS and LA FLEX

The Great Britain Insulation Scheme (GBIS) helps UK households in homes with poor EPC ratings (D–G) and lower council tax bands. You may qualify for free internal wall insulation as part of energy-saving upgrades to cut bills and boost efficiency.

Not eligible through standard routes? LA FLEX lets councils approve based on income, health, or housing – helping more vulnerable households get support.

What is the LA FLEX Route?

The Local Authority FLEX (LA FLEX) route extends schemes like ECO4 and GBIS. It gives councils the ability to support households that don’t get traditional benefits but are still struggling with low income or poor living conditions.

If your council takes part in LA FLEX, you might qualify for funding even if you’re not on benefits. It’s designed to help people facing fuel poverty or health issues linked to cold homes. There are four different ways you can be eligible:

  • Route 1 – Income-Based: If your total household income is under £31,000 a year, regardless of home size or region, you may qualify.

  • Route 2 – Vulnerability Indicators: Households can qualify by meeting at least two signs of vulnerability—like living in a low-income area or having children on free school meals.

  • Route 3 – Health Referrals: A healthcare professional can refer you if someone in your home has a serious health condition made worse by the cold, such as asthma or heart disease.

  • Route 4 – Local Criteria: Councils and energy suppliers can create their own ways to identify struggling households, offering more flexible and tailored support.

Benefits of Internal Wall Insulation

  • Lower Heating Costs
    Reduces heat loss through solid walls, helping you save money on your energy bills.

  • Better Indoor Comfort
    Keeps your home warmer in winter and cooler in summer by maintaining a stable temperature.

  • Energy Efficiency Boost
    Improves your home’s energy performance, making it more efficient and eco-friendly.

  • Reduced Carbon Emissions
    Cuts down on energy use, helping lower your household’s carbon footprint.

  • Noise Reduction
    Adds an extra layer of soundproofing, reducing outside noise and making your home quieter.

  • Adds Property Value
    Enhancing your home’s energy efficiency can make it more attractive to future buyers.

Am I Eligible for Internal Wall Insulation Funding?

You may qualify for free or subsidized internal wall insulation through the ECO4 scheme if your household receives certain government benefits. This initiative is aimed at supporting low-income and vulnerable individuals by improving home energy efficiency. If you or a family member receives any of the following benefits, you could be eligible:

  • Universal Credit (UC)

  • Child Tax Credit (CTC)

  • Working Tax Credit (WTC)

  • Income Support

  • Housing Benefit

  • Pension Credit (Guarantee or Savings Credit)

  • Income-based Jobseeker’s Allowance (JSA)

  • Income-related Employment and Support Allowance (ESA)

  • Child Benefit (income-based eligibility applies)

GBIS Eligibility

To benefit from internal wall insulation through the Great Britain Insulation Scheme (GBIS), your property must meet specific requirements. These include having an Energy Performance Certificate (EPC) rating between D and G and being in a lower council tax band—A to D in England or A to E in Scotland and Wales.

If your home meets these conditions, you could receive funding to help insulate solid internal walls, improving energy efficiency and lowering heating costs.

The Process for Applying for a Solid Wall Insulation Grant

Getting Internal Wall Insulation through the ECO4 scheme is a smooth and straightforward process. Our expert team supports you from start to finish, ensuring everything runs efficiently and stress-free. Here’s what to expect:

1. Fill Out the Application Form
Start by completing our simple online form. It gathers basic details about your home and your eligibility. The form only takes a few minutes and helps us understand how we can assist you.

2. Initial Contact from Our Team
After receiving your application, one of our advisors will contact you to verify your details and explain the next steps. We’re happy to answer your questions and provide clear information on what the grant can offer.

3. Home Energy Survey
A qualified assessor will carry out a free survey of your home to check its current energy performance. This helps us identify how Internal Wall Insulation and other measures could improve your comfort and reduce bills.

4. Review of Grant Eligibility and Options
Based on the survey results, we’ll walk you through the available improvements. You’ll get a full overview of the eligible upgrades under ECO4, ensuring you understand what’s available at no cost to you.

5. Installation of Internal Wall Insulation
Once approved, our certified installers will carry out the insulation work professionally and efficiently. Other qualifying measures may also be installed to maximise your home’s energy efficiency and long-term savings.

Apply Now for a Solid Wall Insulation Grant

Think you qualify under ECO4, GBIS, or LA FLEX? Apply now to make your home warmer and more energy-efficient. Fill out our quick form or contact us—our team is here to help you every step of the way.