FREE Internal
Wall Insulation


Free Internal Wall Insulation Stirling

Envirohomes Renewables, your go-to authority in Stirling for cutting-edge internal wall insulation solutions. At Envirohomes Renewables, we’re committed to revolutionizing Scotland’s home renewable services sector, recognizing the pivotal role that internal wall insulation plays in boosting energy efficiency and curbing energy expenses.

Our core focus revolves around providing fully funded internal wall insulation services, specifically tailored to cater to low-income households receiving benefits across Scotland. Through initiatives like the Government’s ECO 4 scheme, we extend this fully funded service to eligible households, ensuring equitable access to energy-saving solutions throughout Stirling and beyond.

Backed by a team of highly trained internal wall insulation experts boasting esteemed industry accreditations, including the prestigious PAS 2030 certification, we guarantee unparalleled quality and professionalism in every project we undertake.

Securing a free insulation grant in Stirling and across the UK is now easier than ever, thanks to initiatives such as the Energy Company Obligation 4 (ECO4) scheme. This government-backed program is dedicated to upgrading heating systems, reducing carbon emissions, alleviating fuel poverty, and modernizing home heating infrastructure across Scotland and the UK.

Continuing until March 2026, the ECO4 scheme places significant emphasis on promoting energy efficiency. Through collaboration with energy suppliers and local authorities, it identifies and supports eligible households in Stirling, paving the way for a sustainable and energy-conscious future.

internal insulation

Who Is Eligible
For The Internal Wall Insulation Grant?

Envirohomes Renewables plays a pivotal role in assisting qualified individuals to access and undertake various home improvement projects as part of the ECO4 initiative. Aligned with governmental objectives to tackle fuel poverty and achieve carbon neutrality by 2050, this initiative strives to make sustainable living more accessible and achievable for all.
Here are the criteria needed to be eligible for this grant

ECO Scheme grant eligibility

  • Individuals earning below £19,720 annually.


  • Home occupants, whether owning, renting, or residing in social housing.


  • Recipients of designated benefits like Child Benefit, Income Support, among others.


  • Those aged 60 and above benefiting from Pension Credit.


  • Residences with an Energy Performance Certificate (EPC) rating of D or below.

What Is Internal Wall Insulation?

With internal wall insulation emerging as a remarkably effective tactic in pursuit of this objective. This approach involves applying insulation materials, such as rigid boards or mineral wool fibers, typically ranging between 60 mm to 100 mm in thickness, onto the inner surfaces of exterior walls.

By integrating an extra thermal barrier within the building’s framework, internal wall insulation drastically mitigates heat loss. Consequently, this technique yields significant enhancements in energy preservation, leading to substantial reductions in heating expenses over the long haul.

Internal wall insulation presents distinct benefits, particularly for structures lacking cavity walls or where cavity wall insulation installation proves impractical. Furthermore, this insulation methodology fosters improved indoor temperature control, thereby elevating occupants’ comfort levels. Additionally, it holds promise in prolonging the lifespan of the building’s heating systems, rendering it a worthwhile investment in both energy efficiency and enduring building upkeep.

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 solutions are tailored specifically for properties with solid walls, emphasizing the strengthening of insulation within the interior structure.

  • Insulation materials, typically ranging from 60 mm to 100 mm thick, often comprise rigid insulation boards or mineral wool fibers.
  • Installing this insulation may require removing existing wall coverings to ensure optimal placement.
  • The improvements are noticeable within the property, potentially altering room dimensions and aesthetic appearance.
  • Compared to external wall insulation, internal wall insulation generally offers a more cost-effective means of enhancing energy efficiency.

Cavity Wall insulation offers a tailored remedy for homes equipped with cavities between their inner and outer walls.

  • The insulation process begins by precisely drilling into the walls, allowing for the insertion of insulation materials.
  • Utilizing either mineral wool or foam, the insulation material is injected into the bored holes, expanding to effectively occupy the cavity space and enhance insulation.
  • The filled holes are then discreetly concealed using plaster or similar substances, preserving the property’s visual appeal.
  • Cavity wall insulation markedly enhances heating efficiency, resulting in substantial and enduring reductions in energy costs.
  • Enjoy a swift installation process that minimizes disturbances for homeowners or tenants, ensuring a smooth and hassle-free experience.
  • Cavity wall insulation offers a convenient solution with minimal disruption during installation, emphasizing homeowner comfort.

Solid Wall insulating presents a bespoke remedy tailored for older or solid-wall structures, addressing the critical necessity of enhancing thermal efficiency. This technique entails the application of insulating materials on the outer surface of the edifice, forming a protective shield against thermal dissipation and augmenting the overall energy efficiency of the edifice.

  • A significant number of older structures, particularly those erected before 1920, often lack cavities within their walls, rendering them ideal candidates for solid wall insulation.

  • Solid wall insulation offers a range of adaptable application techniques, such as external cladding, rendering, or the incorporation of insulation boards. These diverse methods cater to the distinctive needs of various building configurations.

  • By markedly advancing energy efficiency and thermal control, solid wall insulation heightens the comfort of occupants within these structures, fostering a more congenial living ambiance.

  • Remarkably, solid wall insulation upholds the integrity of indoor spaces and preserves the aesthetic allure of properties, ensuring a harmonious blend of utility and visual appeal.

  • Solid wall insulation typically entails greater expenses compared to internal insulation alternatives, reflecting the supplementary materials and labor involved in exterior application.


How Does Internal Wall Insulation Work?

What Are The
Advantages and Disadvantages

Of Internal Wall Insulation?

Advantages of internal wall insulation

Perfect for homes with solid walls.

Boosted energy efficiency.

Increased coziness and warmth.

Reduced environmental impact.

Heightened property valuation.

Opens doors to financial assistance by cutting down energy usage.

Disadvantages of internal wall insulation

  • Minimization of living area.
  • Inconvenience encountered during the setup phase.
  • Possible expenses incurred if the prerequisites for a complimentary insulation grant are not fulfilled.
  • Increased maintenance costs could result from inadequate installation by inexperienced personnel.
  • Potential for moisture accumulation and mold development

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).


Even if you’re not currently receiving benefits, you may still qualify for full funding under the ECO4 scheme if your household has a low income. This initiative aims to enhance energy efficiency by providing free insulation, potentially reducing your heating costs significantly.

For homes constructed within the last two decades, it’s probable that the walls already have insulation and other energy-saving features.

To confirm this, engaging certified installers to conduct a borescope inspection is advisable. They’ll create a small opening in the external wall to ascertain whether the walls are insulated or not.

Aside from wall insulation, there are various methods to decrease energy expenses.

These include turning off unused lights, adjusting the thermostat slightly lower, wearing warmer clothing indoors, transitioning to energy-efficient appliances, and practicing shorter showers to conserve hot water usage, among others.

Operating in Stirling and throughout the UK, the Energy Saving Trust offers a range of services and initiatives.

It delivers guidance, resources, and assistance to individuals, businesses, and organizations to support them in reducing energy consumption, cutting down on energy costs, and minimizing carbon emissions.

Absolutely. Studies reveal that uninsulated solid walls can account for up to 45% of heat loss, with an additional 25% of heat escaping through uninsulated roofs.

These figures underscore the crucial importance of adequately insulating your walls to maintain energy efficiency.

In Stirling, our dedicated team of professionals distinguishes itself by delivering top-notch internal wall insulation solutions, backed by a wealth of expertise and hands-on experience. With extensive training and industry recognition, including prestigious certifications like PAS 2030, we uphold unwavering standards to ensure flawless execution, fostering confidence and reliability in our services.

Navigating the landscape of free insulation grants in Scotland and across the UK is simplified through customized programs tailored to meet the specific needs of homeowners. Among these initiatives, the Energy Company Obligation 4 (ECO4) scheme stands out as a prominent and accessible option.

Endorsed by governmental entities, the ECO4 scheme represents a collective effort aimed at modernizing heating systems to combat carbon emissions and address fuel poverty. With a particular emphasis on upgrading heating systems in the least energy-efficient homes in Stirling, Scotland, and beyond, its primary objective is to elevate overall energy efficiency standards.

Scheduled to continue until March 2026, the ECO4 scheme underscores the critical importance of advancing energy efficiency measures. Through collaborative partnerships with energy suppliers and local authorities, eligible households in Stirling are identified and provided with vital support and resources to facilitate home improvements, thus contributing to a greener and more sustainable future.

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Registered office address: 12 Somerset Place, Glasgow, Scotland, G3 7JT.
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