FREE Internal
Wall Insulation


Free Internal Wall Insulation Angus

Envirohomes Renewables stands out as Angus’s premier internal wall insulation provider.

As a leading renewable energy service company in Scotland, we recognize the critical role internal wall insulation plays in enhancing home energy efficiency and reducing energy costs. 

Our primary focus is on delivering fully funded internal wall insulation services, alongside other renewable energy solutions, to low-income households receiving benefits in Angus. We accomplish this through the Government’s ECO 4 scheme.

Our team of expert installers holds all necessary industry accreditations, including PAS 2030 certification, ensuring top-notch service quality and compliance with standards.

Acquiring a free insulation grant in Angus and throughout Scotland is a straightforward process, primarily through initiatives like the Energy Company Obligation 4 (ECO4) scheme

internal insulation

Who Is Eligible
For The Internal Wall Insulation Grant?

Envirohomes Renewables assists eligible individuals in accessing various home improvement upgrades through the ECO4 scheme. The scheme prioritizes low-income and vulnerable households, aligning with governmental objectives to combat fuel poverty and achieve carbon neutrality by 2050.
Here are the criteria needed to be eligible for this grant

ECO Scheme grant eligibility

    • Individuals with an annual income below £19,720.
    • Homeowners, private tenants, or recipients of social housing benefits.
    • Individuals receiving specified benefits such as Child Benefit or Income Support.
    • Pensioners (over 60) receiving Pension Credit Benefits.
    • Homes with an Energy Performance Certificate (EPC) rating of D or lower.

What Is Internal Wall Insulation?

Internal wall insulation is a method aimed at enhancing energy efficiency by adding 60 mm to 100 mm of insulation materials (typically rigid insulation boards composed of plasterboard or mineral wool fibers) to the inner surfaces of external walls within a property.

This process effectively reduces heat loss, offering a cost-effective alternative, particularly for properties lacking cavity walls or where cavity wall insulation is impractical.

What is the difference between
internal wall, cavity wall and solid wall insulation?

While all these insulating techniques serve as energy efficiency improvements, they do vary slightly in their function and application.

Internal insulation targets properties with solid walls, focusing on insulating the interior walls

    • Insulation materials are typically 60 mm – 100 mm thick, commonly in the form of rigid boards or mineral wool fibers.
    • Installation may necessitate the removal of existing wall coverings.
    • The impact is internal, potentially affecting room dimensions and aesthetics, but it is generally cost-effective.

Cavity Wall insulation is suited for properties with cavity walls, comprising inner and outer layers with a gap between. This gap is filled with insulation materials to enhance warmth and energy efficiency.

  • Insulation materials, such as mineral wool or foam, are injected into the cavity through drilled holes.


  • Access points are concealed to maintain property aesthetics.


  • It offers quick installation with minimal disruption.

Solid wall insulating, is designed for older or solid wall properties and is applied externally

  • Common in homes built before 1920.


  • Various methods like external cladding or insulation boards are used.


  • It effectively improves energy efficiency without impacting interior spaces.


Solid wall insulation may incur higher upfront costs compared to internal options.

How Does Internal Wall Insulation Work?

What Are The
Advantages and Disadvantages

Of Internal Wall Insulation?

Advantages of internal wall insulation

  • Suitable for solid wall properties.
  • Enhanced energy efficiency.
  • Increased warmth and comfort.
  • Reduced carbon footprint.
  • Enhanced property value.
  • Financial savings through reduced energy consumption.

Disadvantages of internal wall insulation

  • Reduced room space.
  • Installation disruption.
  • Potential costs if ineligible for grants.
  • Maintenance expenses if installation is improper.
  • Risk of dampness/mold growth.

Note: For any interior wall insulation grant or home improvement funding to be approved, it must be managed by an approved installer (such as Envirohomes Renewables) by the specific scheme (such as the ECO4 scheme).


While benefits recipients are prioritized, households with low incomes may still qualify for full funding through schemes like ECO4, enhancing energy efficiency and reducing heating costs.

Homes built in the last 20 years likely have insulated walls. Certified installers can perform inspections using tools like borescopes to confirm insulation presence.

Efficient Energy Strategies for Cost Reduction:

  • Adopt practices such as switching off lights when not in use to minimize electricity usage and lower utility bills.


  • Consider lowering your thermostat by a degree or two to conserve energy while maintaining a comfortable indoor environment.


  • Opt for wearing warmer clothing indoors, such as sweaters or socks, to reduce reliance on heating systems and decrease energy consumption.


  • Invest in appliances with A-grade energy ratings to enhance energy efficiency and reduce overall energy consumption in your household.


  • Be mindful of your shower duration to conserve hot water and lower energy usage, consequently reducing utility costs.

The Energy Saving Trust extends its reach to Angus, providing tailored support and resources similar to those offered throughout the UK.

Residents and businesses in Angus can access valuable advice, information, and assistance from the Energy Saving Trust to effectively reduce energy usage, minimize energy costs, and play their part in reducing carbon emissions.

Indeed. It is crucial to tackle the issue of uninsulated solid walls, as they can lead to significant heat loss, possibly representing up to 45% of the total heat loss within a building. Additionally, an uninsulated roof can compound this problem, adding an extra 25% to the overall heat loss. These observations underscore the critical need for implementing proper insulation solutions for your walls to maximize energy efficiency and effectively reduce heat loss.

Our proficient team of experts specializing in internal wall insulation in Angus boasts extensive training and holds all relevant industry certifications, including the prestigious PAS 2030 accreditation. This ensures that every project we undertake adheres to the highest standards, instilling confidence and trust in our services.

Obtaining a complimentary insulation grant in Scotland and the UK is a straightforward process, with numerous schemes tailored to meet the needs of homeowners. One notable initiative is the Energy Company Obligation 4 (ECO4) scheme, which stands out as one of the most prominent and accessible programs.

Supported by the government, the ECO4 scheme is a comprehensive UK initiative aimed at modernizing heating systems to combat carbon emissions and alleviate fuel poverty. With a specific focus on the least energy-efficient homes across Scotland and the wider UK, its goal is to enhance heating systems and overall energy efficiency.

Scheduled to run until March 2026, the ECO4 scheme places significant emphasis on improving energy efficiency. Through collaborative efforts with energy suppliers and local authorities, eligible households are identified and provided with essential support and resources to upgrade their residences.

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Registered office address: 12 Somerset Place, Glasgow, Scotland, G3 7JT.
Company No: SC708370. VAT No:396823742