FREE Internal
Wall Insulation


Free Internal Wall Insulation Dumfries

Envirohomes Renewables stands as a leading authority on internal wall insulation in Dumfries, committed to enhancing energy efficiency in homes across Scotland. As a prominent provider of renewable home services, we recognize the critical role internal wall insulation plays in reducing energy consumption and lowering utility bills.

Currently, our primary focus lies in delivering fully funded internal wall insulation services to low-income households receiving benefits in Dumfries and throughout Scotland. Through the Government’s ECO 4 scheme, we strive to make homes more energy-efficient while addressing fuel poverty.

Our team of highly skilled internal wall insulation installers holds industry accreditations, including the PAS 2030 certification, ensuring that all projects adhere to the highest standards of quality and professionalism.

Securing an internal wall insulation grant in Dumfries and the wider UK is easily achievable. The Energy Company Obligation 4 (ECO4) scheme stands as one of the largest ongoing programs, backed by the government, aimed at upgrading heating systems to reduce carbon emissions and alleviate fuel poverty.

internal insulation

Who Is Eligible
For The Internal Wall Insulation Grant?

Envirohomes Renewables aids qualifying clients in obtaining a range of home improvement enhancements via the ECO4 initiative. By focusing on low-income and vulnerable households, we contribute to the government's pledge to combat fuel poverty and work towards carbon neutrality by 2050.
Here are the criteria needed to be eligible for this grant

ECO Scheme grant eligibility

    • Individuals with an income below £19,720 per annum.

    • Homeowners, private tenants, or those receiving social housing benefits.

    • Recipients of certain benefits such as Child Benefit, Income Support, etc.

    • 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 constitutes a holistic strategy crafted to enhance the energy efficiency of buildings. It encompasses the application of insulation materials, typically ranging from 60mm to 100mm in thickness, to the inner surfaces of exterior walls. The primary objective is to mitigate heat loss within the structure.

This approach proves particularly advantageous for properties lacking cavity walls or where external insulation is impractical. By embracing internal wall insulation, property owners establish a robust thermal barrier within their dwellings, effectively curbing heat transfer and augmenting overall energy preservation.

The benefits of internal wall insulation transcend mere comfort, as it also translates into substantial long-term energy savings and fosters environmental sustainability.

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  is customarily tailored for properties characterized by solid walls, with the principal aim of insulating the interior walls of the edifice.

    • The insulation materials typically range from 60 mm to 100 mm in thickness, often manifesting as rigid insulation boards or mineral wool fibers.
    • Installation may require the displacement of existing wall coverings to accommodate the positioning of the insulation materials.
    • The ultimate result is observable within the confines of the property’s interior, potentially influencing room proportions and overall visual appeal.
    • Relative to external wall insulation, internal wall insulation typically entails diminished installation expenses.

Cavity Wall insulation stands out as a specialized solution tailored to properties outfitted with cavity walls. These walls consist of dual layers—an outer and an inner wall—parted by a cavity, which serves as a gap between the two. The primary objective of cavity wall insulation is to heighten the warmth within homes while conserving energy.

  • Drilling holes into the outer layer of cavity walls initiates the process.
  • Insulation materials like mineral wool or foam are injected into these holes.
  • After filling the cavities, holes are concealed with plaster.
  • Cavity wall insulation improves heating efficiency and reduces energy costs.
  • It’s a relatively quick process with minimal disruption to residents compared to other methods.

Solid wall insulating is meticulously crafted for older constructions or properties devoid of a cavity wall configuration. This method meticulously regulates indoor temperatures, heightens comfort, and preserves energy, making it particularly suited for historic edifices, seamlessly blending with existing architectural elements.

  • Residences erected prior to 1920 typically boast solid walls.
  • Solid wall insulation presents versatile application techniques, encompassing external cladding, rendering (plastering), or insulation boards.
  • This approach adeptly augments energy efficiency and thermal regulation within solid wall properties.
  • The final result preserves interior living spaces and aesthetic allure without compromise. In contrast to internal insulation, solid wall insulation generally entails elevated costs.

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.

  • Improved warmth and comfort.

  • Reduced carbon footprint. Increased property value.

  • Aids in financial support by reducing energy needs.

Disadvantages of internal wall insulation

  • Reduction in room space.

  • Disruption during installation.

  • Potential cost implications for ineligible households.

  • Increased maintenance costs if not installed correctly.

  • Risk of dampness or 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).


Households with limited income or individuals benefiting from assistance programs may be eligible for complete funding via initiatives such as ECO4, which strive to improve energy efficiency irrespective of benefit status.

Engage certified installers to conduct a borescope inspection, particularly for properties constructed within the past two decades, to verify the existence of cavity wall insulation.

In addition to internal wall insulation, there exist several effective strategies to reduce energy bills, including:

  • Turning off lights when not in use can substantially diminish electricity usage and contribute to energy conservation.
  • Making slight adjustments to your thermostat, such as lowering it by a degree or two, can conserve energy without compromising the comfort levels in your residence.
  • Opting for appliances with A-grade energy ratings can lead to decreased energy consumption, resulting in lower utility bills over time.
  • Being mindful of the duration of your showers can aid in conserving hot water, thereby reducing energy usage related to water heating and contributing to savings on your utility bills.

The Energy Saving Trust provides guidance and assistance in Dumfries, advocating for energy efficiency, decreased utility expenses, and diminished carbon emissions.


Indeed, effective wall insulation plays a pivotal role in mitigating heat loss, underscoring its paramount importance in endeavors aimed at conserving energy.

In Dumfries, our expert team specializes in internal wall insulation, backed by extensive experience and prestigious certifications such as the renowned PAS 2030 accreditation. This guarantees that every project we undertake upholds the highest standards, fostering confidence and trust in our services.

Securing a complimentary insulation grant in Scotland and the broader UK is a streamlined process, facilitated by various tailored schemes accessible to homeowners. One prominent initiative is the Energy Company Obligation 4 (ECO4) scheme, esteemed for its accessibility and efficacy.

Endorsed by the government, the ECO4 scheme stands as a comprehensive UK program designed to modernize heating systems, combat carbon emissions, and tackle fuel poverty. With a specific focus on enhancing the energy efficiency of the least efficient homes across Scotland and the UK, its objective is to upgrade heating systems and overall energy performance.

Scheduled to continue until March 2026, the ECO4 scheme places significant emphasis on bolstering energy efficiency. Through collaborative efforts with energy suppliers and local authorities, eligible households are identified and furnished with essential support and resources to enhance their properties.

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