FREE Internal
Wall Insulation


Free Internal Wall Insulation Falkirk

Envirohomes Renewables stands out as Falkirk’s premier provider of internal wall insulation solutions. As a leading renewable energy service provider in Scotland, we recognize the critical role that internal wall insulation plays in enhancing energy efficiency and reducing utility costs for homeowners.

Our primary focus is on delivering fully funded internal wall insulation services to low-income households receiving benefits in Falkirk and surrounding areas through the Government’s ECO 4 scheme.

Our team of highly skilled internal wall insulation installers holds industry accreditations, including the PAS 2030 certification, ensuring that all projects are completed to the highest standards. We are committed to helping homeowners improve their homes’ energy efficiency and comfort levels while contributing to environmental sustainability efforts.

Securing a free insulation grant in Falkirk and throughout Scotland is made accessible through various government schemes, with the Energy Company Obligation 4 (ECO4) scheme being one of the most significant initiatives currently available.

internal insulation

Who Is Eligible
For The Internal Wall Insulation Grant?

Envirohomes Renewables aids qualifying individuals in accessing a range of home improvement enhancements via the ECO4 scheme. This initiative places emphasis on low-income and vulnerable households, in line with governmental goals to address fuel poverty and advance towards carbon neutrality by 2050.
Here are the criteria needed to be eligible for this grant

ECO Scheme grant eligibility

    • Individuals earning an annual income of less than £19,720.
    • Homeowners, private tenants, or individuals receiving social housing benefits.
    • Individuals receiving particular benefits like Child Benefit, Income Support, among others.
    • Pensioners aged 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 highly effective technique aimed at bolstering energy efficiency within buildings. This method involves the application of insulation materials, which are usually 60 mm to 100 mm thick rigid insulation boards or mineral wool fibres, onto the interior surfaces of external walls within a property.

By creating a thermal barrier, internal wall insulation significantly mitigates heat loss, thereby enhancing the overall energy performance of the building.

This approach proves particularly advantageous for properties lacking cavity walls or where external insulation may not be viable, offering a cost-effective solution to improve insulation and reduce energy consumption.

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 tailored to address the needs of properties featuring solid walls, with a primary focus on enhancing the insulation of the interior walls within the structure.

  • The insulation materials typically range from 60 mm to 100 mm in thickness and commonly consist of rigid insulation boards or mineral wool fibers.
  • Installation may necessitate the removal of existing wall coverings to facilitate the placement of the insulation materials.
  • As a consequence of the installation, the final outcome becomes visible on the interior of the property, potentially influencing room dimensions and overall aesthetics.
  • Internal wall insulation generally presents a more cost-effective option compared to external wall insulation due to factors such as materials and labor costs.

Cavity Wall insulation is specifically engineered for properties featuring cavity walls, which comprise two distinct layers: an outer and an inner wall, separated by a gap known as the cavity. This void is strategically filled with insulating materials, serving to enhance the thermal efficiency of homes and effectively reduce energy consumption.

  • Initial drilling of holes in walls facilitates the injection of cavity wall insulation materials such as mineral wool or foam.
  • These materials naturally expand to fill up the entire cavity space, ensuring effective insulation.
  • Access holes are then meticulously covered with plaster or similar material to maintain the property’s aesthetic integrity.
  • Cavity wall insulation contributes to improved heating efficiency and reduced energy bills.
  • The installation process for cavity wall insulation is generally quicker, causing minimal disruption to homeowners and tenants.

Solid wall insulating, is tailored for older buildings or those without cavity walls. It entails applying insulation materials directly to the exterior walls to enhance energy efficiency. This method is ideal for improving insulation and reducing heat loss in properties lacking cavity walls.

  • Properties constructed prior to 1920 typically feature solid walls, which lack the cavity found in newer constructions.
  • Solid wall insulation offers versatile application methods, including external cladding, rendering (plastering), or installation of insulation boards.
  • This approach proves highly effective in enhancing energy efficiency and thermal regulation within solid wall properties.
  • Importantly, the implementation of solid wall insulation does not compromise interior living spaces or detract from the property’s aesthetics.
  • However, it’s worth noting that solid wall insulation tends to incur higher costs compared to internal insulation methods.

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.
  • Improved energy efficiency and comfort.
  • Reduced carbon footprint.
  • Potential increase in property value.
  • Financial support through reduced energy bills.

Disadvantages of internal wall insulation

  • Reduction in room space.
  • Disruption during installation.
  • Potential cost for ineligible homeowners.
  • Increased maintenance if not installed correctly.
  • Risk of dampness or mould 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 eligibility often prioritizes low-income households or those receiving benefits, individuals with low incomes may still qualify for assistance under government schemes to improve energy efficiency in their homes.

Homes built in the past two decades likely already have cavity wall insulation.

A professional inspection can confirm its presence through a borescope inspection, which involves making a small hole in the exterior wall to assess insulation status.

Aside from insulation, energy bills can be reduced by adopting energy-saving practices such as turning off unused lights, adjusting thermostats, and investing in energy-efficient appliances.

The Energy Saving Trust provides advice and support across Scotland, assisting individuals and organizations in reducing energy consumption, lowering bills, and decreasing carbon emissions.

Wall insulation is crucial for improving energy efficiency and reducing heat loss in homes, ultimately contributing to lower energy bills and environmental sustainability efforts.

Our dedicated team of professionals specializing in internal wall insulation in Falkirk brings a wealth of expertise to every project. With extensive training and holding all pertinent industry certifications, including the esteemed PAS 2030 accreditation, we ensure that each undertaking meets the highest standards, instilling confidence and reliability in our services.

Securing a complimentary insulation grant in Scotland and the UK is a streamlined process, facilitated by various tailored schemes catering to homeowners’ needs. Among these initiatives, the Energy Company Obligation 4 (ECO4) scheme stands out as a prominent and accessible program.

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

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

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