Get a Free internal wall insulation with ECO4 – Available Across England

Under ECO4 Scheme Funded by UK Government

ECO Only Leads Form

What is Internal Wall Insulation?

Internal Wall Insulation (IWI) helps reduce heat loss by fitting insulation boards to the inside of external walls. It’s ideal for older Scottish homes with solid walls, creating a thermal barrier that keeps warmth in and cold air out, improving comfort and lowering energy bills.

Once installed, the insulated surface is finished with plasterboard and redecorated as normal. Under the ECO4 government scheme, qualifying homeowners and tenants can receive free internal wall insulation to improve energy efficiency and reduce energy bills.

How Internal Wall Insulation Keeps Your Home Warm

The Internal Wall Insulation (IWI) process starts with a property assessment to check suitability and identify any damp or ventilation needs. Then, insulation boards are securely fitted to the inside of external walls, creating a warm and protective layer that prevents heat from escaping.

Once installed, the walls are finished with plasterboard and redecorated as normal. The process is quick, tidy, and carried out by qualified installers under the ECO4 scheme, helping Scottish homeowners reduce heat loss and improve energy efficiency.

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Insulate Your Home with a Free Internal Wall Insulation Grant!

Check if you qualify for free internal wall insulation under the ECO4 or GBIS scheme and start enjoying a cosier home with reduced energy bills.

Will Internal Wall Insulation Affect the Appearance of My Home?

Internal Wall Insulation (IWI) will not change the outside look of your home, as all work is done inside. The insulation boards are fitted to internal walls and finished with plasterboard, giving a smooth surface that can be painted or decorated as normal.

You might lose a few centimetres of room space, but the warmth, comfort, and energy savings make it worthwhile. It’s a perfect solution for older and solid wall homes in Scotland, improving insulation and efficiency without altering your property’s character.

Why you choose Internal Wall Insulation

You should choose Internal Wall Insulation because it’s one of the most effective ways to reduce heat loss, cut energy bills, and improve home comfort without altering the building’s exterior. It’s ideal for solid wall properties across Scotland looking to boost energy efficiency and EPC ratings under government-backed ECO4 and GBIS grants

Warmer, More Comfortable Home

Internal wall insulation prevents valuable heat from escaping through solid walls, keeping your home warmer for longer. It helps maintain consistent indoor temperatures and enhances comfort during cold Scottish winters.

Eco-Friendly & Energy Efficient

Cut your monthly energy costs with free home upgrades funded through the ECO4 scheme. Enjoy warmer, more efficient living while reducing your bills for good.

Lower Energy Bills

Make your home greener with eco-friendly, energy-efficient upgrades funded under the ECO4 scheme. Reduce your carbon footprint while saving energy and lowering running costs

Perfect for Older or Solid Wall HomesCartoon brick house with a solid wall badge suitable for older homes.

Perfect for Older or Solid Wall Homes

Designed specifically for Scotland’s older and solid wall homes, our insulation upgrades improve warmth and energy efficiency. Keep the character of your property while cutting heat loss and lowering energy bills.

Check If You Eligible for a Free Internal Wall Insulation Insulation Grant

If your home has poor insulation or loses heat through the roof, you could be eligible for free Internal Wall Insulation insulation funded by the UK Government’s ECO4 or GBIS schemes. Simply complete our quick eligibility check — it only takes a minute to find out if your property qualifies for government-backed energy-saving upgrades available across Scotland

Check My Eligibility

What are the benefits of Internal Wall Insulation

To qualify for free internal wall insulation under the ECO4 or GBIS schemes, at least one person in your household must be receiving one of the approved income-based benefits.

If anyone in your household receives one of these benefits, you could be eligible for a fully funded internal wall insulation grant through the UK Government’s ECO4 or GBIS scheme.

 
 

What Are the Next Steps After You Qualify for Free Internal Wall Insulation?

Once you’re approved for funding through the ECO4 or GBIS scheme, getting your insulation is easy and hassle-free. We’ll take care of everything — from your home survey to the final installation — so you can enjoy a warmer, more comfortable, and energy-efficient home.

Your Easy 3-Step Process

Book a Free Survey

Book your free home survey to find out if your home qualifies for internal wall insulation. Our friendly team will visit, check your property, and guide you through the next steps to get started.

Preparing for Installation

Get ready for your internal wall insulation installation with a quick and simple setup. Our team will guide you through every step to make sure everything goes smoothly on the day.

Enjoy Your New Insulation

Relax and feel the difference with your new internal wall insulation. Enjoy a warmer, cosier home while saving on your energy bills all year round.

Find Out If Your Home Qualifies

The best way to know if cavity wall insulation is right for your home is to book a free, no-obligation survey. Our expert team will inspect your property, check its suitability, and guide you through the process of applying for funding under the ECO4 or GBIS schemes. If you qualify, we’ll arrange a hassle-free installation so you can start enjoying a warmer, more energy-efficient home sooner.

Frequently Asked Questions
Can internal wall insulation really make my home feel warmer right away?
es! Most homeowners notice a difference within days after installation. Once the insulation is in place, your walls retain heat better, making rooms feel warmer and more comfortable even with lower heating settings.
How much can I save on energy bills with internal wall insulation?
On average, you could save up to £400 per year on heating costs, depending on your home size and energy use. Internal wall insulation cuts heat loss dramatically, helping you spend less while staying cosy.
What makes internal wall insulation better than external wall insulation?
Internal insulation is often faster, less disruptive, and doesn’t change your home’s outside appearance. It’s also ideal for listed buildings or homes in conservation areas where external changes aren’t allowed.
Is internal wall insulation messy or disruptive to install?
Not at all! Our professional team at Eco Grant Scotland works neatly and efficiently. We protect your space, handle all the plastering, and clean up afterward — leaving your home fresh and ready to enjoy.
Can I still decorate my walls after internal wall insulation?
Absolutely! Once the installation and plastering are complete, you can paint, wallpaper, or decorate your walls just as before — with the added bonus of better warmth and energy savings.
How long does internal wall insulation last?
Internal wall insulation is designed to last for the lifetime of your home. Once installed, it requires very little maintenance and continues to provide warmth and energy efficiency year after year.
Does internal wall insulation help reduce damp or mould?
Yes — by keeping your internal walls warmer, insulation helps prevent condensation, which is one of the main causes of damp and mould. That means a healthier, more comfortable home environment.
What happens if my home doesn’t qualify for a free insulation grant?
Even if you don’t qualify for a 100% grant, Eco Grant Scotland can help you explore partial funding options or flexible payment plans to make insulation affordable for everyone.
Why choose Eco Grant Scotland for internal wall insulation?
We’re a trusted local company helping Scottish homeowners access free energy-saving grants. From eligibility checks to final installation, we handle everything — so you can enjoy a warmer, greener home stress-free.