FREE Internal
Wall Insulation


Free Internal Wall Insulation Kilmarnock

Envirohomes Renewables stands as the premier authority on internal wall insulation in Kilmarnock. As a leading provider of renewable home services in Scotland, we recognize the pivotal role that internal wall insulation plays in enhancing energy efficiency and cutting down on energy expenses.

Our primary focus lies in offering fully funded internal wall insulation services, along with other renewable home solutions, to low-income households benefiting from the Government’s ECO 4 scheme in Kilmarnock and beyond.

With a team of highly skilled internal wall insulation installers holding prestigious industry accreditations, including the PAS 2030 certification, we ensure that every job is executed to the utmost standards of quality and professionalism.

Securing a free insulation grant in Kilmarnock and across the UK is readily accessible, with schemes like the Energy Company Obligation 4 (ECO4) scheme playing a crucial role. This government-backed initiative is dedicated to upgrading heating systems to curb carbon emissions while simultaneously tackling fuel poverty and enhancing the heating infrastructure of the least energy-efficient homes throughout Scotland and the UK.

Scheduled to continue until March 2026, the ECO4 scheme places a significant emphasis on promoting energy efficiency. It operates through collaborative efforts with energy suppliers and local authorities to identify and assist eligible households in Kilmarnock and beyond, ensuring a sustainable and energy-conscious future for all.

internal insulation

Who Is Eligible
For The Internal Wall Insulation Grant?

Envirohomes Renewables assists eligible individuals in accessing and implementing a range of home improvement initiatives through the ECO4 program. This aligns with governmental objectives aimed at addressing fuel poverty and achieving carbon neutrality by 2050.
Here are the criteria needed to be eligible for this grant

ECO Scheme grant eligibility

  • Those earning less than £19,720 annually.


  • Homeowners, renters, or individuals residing in social housing.


  • Those receiving designated benefits like Child Benefit, Income Support, and others.


  • Individuals aged 60 and above who are beneficiaries of Pension Credit Benefits.


  • Properties boasting an Energy Performance Certificate (EPC) rating of D or lower.

What Is Internal Wall Insulation?

Internal wall insulation represents a highly efficient method for bolstering the energy efficiency of buildings. It involves the application of insulation materials, such as rigid insulation boards or mineral wool fibers, typically ranging from 60 mm to 100 mm in thickness, onto the inner surfaces of exterior walls.

By implementing an additional thermal barrier within the structural framework, this approach substantially diminishes heat loss, leading to notable improvements in energy preservation and reduced heating expenses.

This insulation technique proves particularly advantageous for properties lacking cavity walls or where the installation of cavity wall insulation is not feasible. Furthermore, internal wall insulation aids in the more effective regulation of indoor temperatures, thereby enhancing occupants’ comfort and potentially prolonging the lifespan of the building’s heating systems.

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 a tailored approach designed specifically for buildings with solid walls. Its main purpose is to insulate the inner surfaces of the structure, significantly improving its thermal efficiency and ability to conserve energy. This method is personalized to address the unique requirements of each building, ensuring optimal insulation and energy savings.

  • The thickness of insulation materials commonly ranges from 60 mm to 100 mm, offering a diverse array of options to suit various needs.
  • These materials encompass a range of choices, including rigid boards or mineral wool fibers, providing flexibility in insulation solutions.
  • The process of installing insulation may necessitate the removal of existing wall coverings, which could have implications for the size and visual appeal of the room.
  • When considering insulation options, internal wall insulation emerges as a financially prudent choice in contrast to external wall insulation, offering a more cost-effective solution without compromising on quality.

Cavity Wall insulation is tailor-made for properties characterized by a cavity wall structure, which consists of two separate layers of walls with a space or gap between them.

  • Drilling Process: Begin by drilling holes in walls for insulation material injection.
  • Material Injection: Inject mineral wool or foam into holes, allowing expansion to fill cavity space.
  • Covering Access Points: Conceal drilled holes with plaster or similar materials for aesthetic preservation.
  • Enhanced Heating Efficiency: Cavity wall insulation boosts heating efficiency, reducing long-term energy costs.
  • Efficient Installation: Swift installation process minimizes disruption to homeowners or tenants.
  • Minimal Disturbance: Cavity wall insulation offers a convenient solution with minimal disruption during installation.

Solid wall insulating, is specifically designed for older or solid-wall properties, offering a solution to improve thermal efficiency. This method involves the application of insulation materials to the exterior of the building, providing a protective barrier against heat loss and enhancing the overall energy performance of the property.

  • Buildings constructed prior to 1920 commonly lack wall cavities, making them ideal candidates for solid wall insulation.
  • Solid wall insulation offers versatile application methods such as external cladding, rendering, or insulation board installation, providing adaptable solutions tailored to different building structures.
  • This approach effectively enhances energy efficiency and thermal regulation in solid wall buildings, ultimately improving the comfort levels of residents.
  • Solid wall insulation maintains the integrity of interior living spaces and preserves the aesthetic appeal of properties, ensuring both functionality and visual attractiveness.
  • It’s important to note, however, that solid wall insulation typically involves higher costs compared to internal insulation options. Therefore, homeowners should carefully budget before proceeding with this upgrade.

How Does Internal Wall Insulation Work?

What Are The
Advantages and Disadvantages

Of Internal Wall Insulation?

Advantages of internal wall insulation

  • It markedly improves energy efficiency, leading to lower energy consumption and reduced utility bills.
  • Its superior insulation properties create a warmer and more comfortable living environment, particularly noticeable in colder seasons.
  • By minimizing heat loss and optimizing thermal performance, it helps reduce the property’s carbon footprint, promoting environmental sustainability.
  • Installation of this solution can potentially increase the property’s value by enhancing its overall energy efficiency and comfort levels.
  • Additionally, by decreasing energy requirements, it qualifies for various financial incentives and support programs aimed at encouraging sustainable living practices.

Disadvantages of internal wall insulation

  • Diminished living space as a result of insulation installation.
  • Disruption encountered throughout the installation phase.
  • Possible expenditures accrued if not qualified for free insulation grants.
  • Escalation in maintenance expenses if insulation is incorrectly fitted.
  • Hazard of moisture accumulation and mold formation linked to insulation.

Note: Please be aware that approval for any interior wall insulation grant or home improvement funding necessitates management by an authorized installer, like Envirohomes Renewables, within the parameters of the designated scheme, such as the ECO4 scheme.


If your household has low income or receives benefits, you may qualify for full funding through schemes like ECO4. Even without benefits, you could still be eligible for government grants.

Homes built within the last 20 years likely have insulation, but a borescope inspection by certified installers can confirm this.

In addition to insulation, energy-saving measures like turning off lights, adjusting thermostats, and using energy-efficient appliances can help.

The Energy Saving Trust offers advice and support in Kilmarnock to reduce energy consumption, lower bills, and cut carbon emissions.

Yes, as significant heat loss occurs through uninsulated walls, emphasizing the importance of proper insulation.

In Kilmarnock, our dedicated team of experts specializing in internal wall insulation brings a wealth of knowledge and hands-on experience to every project. With comprehensive training and industry accolades, including the esteemed PAS 2030 certification, we uphold stringent standards to deliver superior workmanship, instilling confidence and trust in our services.

Securing a free insulation grant in Scotland, and across the UK is a straightforward process, thanks to tailored schemes tailored to meet the needs of homeowners. Among these initiatives, the Energy Company Obligation 4 (ECO4) scheme stands out as a prominent and accessible program.

Endorsed by governmental authorities, the ECO4 scheme represents a concerted effort aimed at modernizing heating systems to combat carbon emissions and alleviate fuel poverty. With a specific focus on upgrading heating systems in the least energy-efficient homes throughout Kilmarnock, Scotland, and the wider UK, its primary goal is to elevate overall energy efficiency.

Continuing until March 2026, the ECO4 scheme prioritizes advancements in energy efficiency. Through collaboration with energy suppliers and local authorities, eligible households in Kilmarnock are identified and provided with essential support and resources to facilitate home upgrades, paving the way for a more sustainable future.

Get In Touch

Copyright © Envirohomes Renewables Limited.
Registered office address: 12 Somerset Place, Glasgow, Scotland, G3 7JT.
Company No: SC708370. VAT No:396823742