FREE Internal
Wall Insulation


Free Internal Wall Insulation Irvine

Envirohomes Renewables takes pride in being the foremost authority on internal wall insulation in Irvine, Scotland. As a leading provider of home renewable services in Scotland, we recognize the critical role internal wall insulation plays in enhancing energy efficiency and reducing energy costs for homeowners.

Our primary focus lies in offering fully funded internal wall insulation services, in collaboration with various home renewable solutions, exclusively to low-income households receiving benefits in Scotland.

In Irvine, our team of internal wall insulation specialists excels in providing exceptional expertise and professionalism. Each member holds accreditation with the prestigious PAS 2030 certification, ensuring the highest quality standards in every service we deliver.

The journey towards securing a free insulation grant in Irvine has been made more accessible and streamlined, thanks to initiatives like the Energy Company Obligation 4 (ECO4) scheme. This vital government-backed program, slated to continue until March 2026, is dedicated to overhauling heating systems, reducing carbon emissions, addressing fuel poverty, and enhancing overall heating efficiency in homes across Scotland and the UK.

The ECO4 scheme, with its unwavering commitment to promoting energy efficiency, works closely with energy suppliers and local authorities in Irvine. This collaborative approach plays a crucial role in identifying eligible households for support, laying the foundation for a greener, more energy-efficient future in the region.

internal insulation

Who Is Eligible
For The Internal Wall Insulation Grant?

Envirohomes Renewables facilitates eligible customers in securing and implementing a range of home improvement upgrades through the ECO 4 scheme. The scheme primarily targets low-income and vulnerable households, aligning with the government's 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 specific benefits such as Child Benefit, Income Support, etc.


  • Pensioners (aged 60 and above) receiving Pension Credit Benefits.


  • Homes with an Energy Performance Certificate (EPC) rating of D or lower.

What Is Internal Wall Insulation?

Internal wall insulation stands as a crucial strategy in bolstering the energy efficiency of buildings. This method entails attaching insulation materials, such as rigid boards or mineral wool fibers, to the inner surfaces of external walls, typically ranging from 60 to 100 mm in thickness.

By integrating this additional insulation layer into the structure, there’s a noticeable decrease in heat loss. This not only enhances energy preservation but also results in substantial savings in heating costs over time.

Particularly advantageous for buildings without cavity walls or where cavity wall insulation isn’t feasible, internal wall insulation plays a pivotal role in stabilizing indoor temperatures, thereby enhancing occupants’ comfort levels. Additionally, it can extend the lifespan of a building’s heating systems, rendering it a wise investment for both energy efficiency and long-term maintenance.

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 tailor-made for properties with solid walls, aiming to insulate the inner walls while taking into account the effect on room dimensions and visual appeal.

  • Internal insulation focuses on insulating interior walls in solid wall properties, utilizing insulation materials ranging from 60 mm to 100 mm in thickness, commonly comprising rigid boards or mineral wool fibers.

  • To ensure proper insulation placement, existing wall coverings may need removal during the installation process, which prioritizes precision and effectiveness.

  • The enhancement brought by internal wall insulation can visibly affect the interior of the property, potentially altering room dimensions and overall aesthetics, albeit providing significant energy efficiency benefits.

  • Compared to external wall insulation, internal wall insulation often presents a more cost-effective option for improving energy efficiency in solid wall properties.

Cavity Wall insulation is ideal for buildings with such walls, as it improves heating efficiency with little inconvenience.

  • Cavity wall insulation begins with precise drilling into the walls to create access points, ensuring efficient installation.

  • Mineral wool or foam insulation is injected into these holes, expanding to fill the cavity space effectively, enhancing heating efficiency.

  • Following insulation, the access points are seamlessly sealed with plaster or similar materials, maintaining the property’s appearance while maximizing energy efficiency.

  • Cavity wall insulation prioritizes convenience and comfort, offering a quick installation process with minimal disruption to homeowners or tenants.

Solid Wall insulating is specifically designed for older buildings that do not have cavity walls. It is applied externally to improve energy efficiency without changing the interior layout.

  • Solid wall insulation is tailored for older builds lacking cavity walls, particularly those constructed before the 1920s.

  • It can be applied using various methods such as external cladding, rendering, or insulation boards, adapted to different architectural styles.

  • Solid wall insulation improves energy efficiency and thermal control, enhancing occupant comfort and creating a more pleasant indoor environment.

  • It preserves the integrity and aesthetic appeal of the building’s interior, striking a balance between functionality and visual appeal.

  •  Despite being more expensive than internal insulation, solid wall insulation offers significant long-term benefits in energy savings and comfort, making it a valuable investment for homeowners.

How Does Internal Wall Insulation Work?

What Are The
Advantages and Disadvantages

Of Internal Wall Insulation?

Advantages of internal wall insulation

  • Ideal for solid wall properties.
  • Enhances energy efficiency and comfort.
  • Reduces carbon footprint and energy expenses.
  • Adds value to the property.
  • Qualifies for financial support, reducing energy needs.

Disadvantages of internal wall insulation

  • Potential reduction in room space.
  • Disruption during installation.
  • Cost implications for ineligible households.
  • Increased maintenance if not installed correctly.
  • Risk of dampness or mold growth.

Note: Approval for any interior wall insulation grant or home improvement funding requires management by an approved installer (e.g., Envirohomes Renewables) under specific schemes (e.g., the ECO4 scheme).


Even if you’re not receiving benefits, you may still qualify for a government insulation grant if your household has a low income. These grants, available through schemes like ECO 4, aim to improve energy efficiency and reduce heating expenses for eligible households.

For homes built in the last 20 years, cavity wall insulation might already be in place. Certified installers can perform a borescope inspection to confirm insulation presence by making a small hole in the exterior wall.

In addition to wall insulation, reducing energy bills involves simple practices like turning off unused lights, adjusting the thermostat, using energy-efficient appliances, and conserving hot water during showers.

The Energy Saving Trust in Irvine, Scotland offers advice, support, and initiatives to help individuals, businesses, and organizations reduce energy consumption, lower bills, and minimize carbon emissions, similar to its services in other regions of the UK.

Yes, considering that up to 45% of heat loss can occur through uninsulated solid walls, proper wall insulation is crucial for improving energy efficiency and reducing heating costs.

In Irvine, Scotland, our skilled team excels in providing top-notch internal wall insulation services. Boasting a wealth of experience and prestigious credentials, such as PAS 2030 certification, we assure superior quality and complete customer contentment.

We also offer guidance to homeowners in navigating various Scottish and UK-wide insulation grant programs. A prominent initiative in this regard is the Energy Company Obligation 4 (ECO4) scheme, which facilitates accessible insulation options.

Backed by the government, the ECO4 program is aimed at enhancing heating systems, reducing carbon footprints, and alleviating fuel poverty. Its primary objective is to boost energy efficiency in the less efficient dwellings throughout Irvine and surrounding areas.

Set to run until March 2026, the ECO4 scheme highlights the significance of advancing energy efficiency. We actively collaborate with energy suppliers and local authorities to help qualifying households in Irvine improve their home energy efficiency, contributing to a more sustainable environmental future.

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