Internal Walls Insulation.

Government-Backed Internal Wall Insulation Grants Available Now

Unlock government grants to install internal wall insulation, improve your home’s energy efficiency, and lower your heating bills. Create a warmer, more comfortable living space, boost your EPC rating, and increase your property’s value. Check your eligibility today!

Stack of four rectangular panels of tan insulation material.
Roll of fiberglass insulation and piggy bank, promoting energy savings.

Why Internal Wall Insulation?

Significantly reduce your energy bills with internal wall insulation.

By filling in any gaps, cracks, or holes on your home’s interior and exterior walls, you can significantly reduce the amount of heat that escapes through the building’s structure. These small openings, often found around windows, doors, and where pipes or cables enter your home, may seem minor, but they can allow warm air to leak out and cold air to seep in, making your heating system work much harder.

Sealing these areas properly helps to create a more energy-efficient living space by improving insulation and reducing drafts. As a result, you’ll not only lower your energy bills and reduce wasted energy, but you’ll also enjoy a warmer, more comfortable home environment for you and your family all year round.

Some of the benefits of installing Internal Wall Insulation include:

  • Keeps your home warm in the winter and cool in the summer

  • Reduces your carbon footprint

  • Save you money on energy bills

  • Improve living environment which is vital for healthy and happy lifestyles

  • Improved indoor air quality

Stack of rectangular, light brown mineral wool insulation batts.

To be eligible you must:

To be eligible you must own or rent your home and be in receipt of a qualifying benefit,

Our 3 Step Hassle Free Process:

  1. If you think you qualify for 100% cost covered ECO4 grants, simply fill in our form and a member of our team will be in touch within 24 hours to discuss your requirements.
  2. Once we have confirmed your eligibility we will arrange for an approved energy surveyor to assess your property free of charge.
  3. We will then submit your grant qualification on your behalf and arrange for work to begin on your property within 14 days. That’s it – you get a warmer home and lower bills!

Check if you’re eligible

To be eligible you must:

To be eligible you must own or rent your home and be in receipt of a qualifying benefit,

Our 3 Step Hassle Free Process:

  1. If you think you qualify for 100% cost covered ECO4 grants, simply fill in our form and a member of our team will be in touch within 24 hours to discuss your requirements.
  2. Once we have confirmed your eligibility we will arrange for an approved energy surveyor to assess your property free of charge.
  3. We will then submit your grant qualification on your behalf and arrange for work to begin on your property within 14 days. That’s it – you get a warmer home and lower bills!

Check if you’re eligible

How much can I save from installing Internal Wall Insulation?

The Numbers

Here’s how much a typical installation could cost you, how much you could save on your energy bill (£/year), as well as how many kilograms of CO2 emissions you could save each year by insulating an uninsulated loft with 270mm of loft insulation.

Wall insulation diagram showing layered construction details

Frequently Asked Questions

Internal wall insulation involves adding a layer of insulating material to the inside walls of your home. It helps reduce heat loss, making your home warmer and more energy efficient. Typically, insulated boards or stud walls with mineral wool are used to improve thermal performance and lower heating bills.

You may qualify for free or subsidised internal wall insulation under the ECO4 scheme if you receive certain government benefits or meet the eligibility criteria. Internal wall insulation grants can cover your full installation costs if eligible. Use our simple online form to check if your home qualifies for funding.

Internal wall insulation can significantly reduce heat loss, lower your energy bills, and make your home more comfortable. It’s a great option for properties with solid walls that can’t be insulated externally, and it can also help reduce condensation and damp issues on interior walls.

Installation typically takes 2 to 5 days, depending on the size of your property and the number of walls being insulated. Our qualified installers at Sustainable Options Eco will ensure the process is quick, tidy, and causes minimal disruption to your home.

Find out more about Internal Walls Insulation.

Get a break on your taxes when you make an investment in energy efficiency.

The government’s 0% VAT on energy-saving installations is available until March 2027. Combining internal wall insulation with loft insulation or room in roof insulation creates comprehensive home efficiency while maximising your installation savings. When multiple insulation measures work together, your home achieves better thermal performance and reduced energy bills. Get started today.

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Contractor installing loft insulation between wooden beams, wearing protective gear.
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Ready to take control of your energy bills?