Free Cavity Wall Insulation Grants
Homes with uninsulated cavity walls lose a significant amount of heat — which leads to higher bills. If your property has cavity walls and a low energy rating, you may be eligible for fully funded insulation through the ECO4 or GBIS government schemes.
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Find out if you meet the criteria for government-funded home energy improvements.
Serving all of the UK – including Scotland, Wales, Northern Ireland, and every region in England.
Cavity Wall Insulation Grants
What is Cavity Wall Insulation?
Cavity wall insulation is one of the most effective ways to stop warmth escaping from your home. It works by filling the space between your internal and external walls with specialist insulation material, helping your home stay warmer for longer without relying as much on your heating system.
Thanks to the ECO4 and GBIS funding schemes, qualifying homeowners can have cavity wall insulation installed completely free.
It’s most suitable for properties built after 1920 with unfilled cavity walls and low energy efficiency ratings.
Why It’s Worth It:
✅ Prevents up to 35% of heat loss through your walls
✅ Quick installation from approved professionals
✅ No cost involved for eligible households under ECO4 or GBIS
Make your home warmer, cheaper to run, and more energy efficient — all without spending a penny.
Is Cavity Wall Insulation Suitable for My Home?
Most properties built from the 1920s onward were constructed with a gap between the inner and outer walls — known as a cavity wall. If that space is still uninsulated, you could be losing a large amount of heat every day.
Cavity wall insulation is likely a great fit for your home if:
✅ Your external walls are brick-built rather than stone or solid wall
✅ Your property was constructed between 1920 and 2005
✅ There’s little or no insulation currently installed
✅ You experience cold spots, draughts, or consistently high energy bills
✅Your EPC rating is D or lower (D, E, F, or G)
Not Sure About Your Wall Type?
No problem — we offer a free eligibility survey to inspect your wall construction, check insulation levels, and confirm whether your property qualifies for funding.
Get Your Cavity Walls Insulated — Fully Funded!
Discover whether you qualify for free cavity wall insulation through the ECO4 or GBIS government schemes and start reducing your heating costs straight away.
Why Choose Cavity Wall Insulation?
Cavity wall insulation is one of the quickest and most cost-effective ways to boost your home’s energy efficiency. By filling the gap between your external walls, it locks in warmth — helping you stay comfortable while spending less on heating.
Lower Heating Costs
Reduce heat loss by up to 35%, meaning less energy wasted and more savings on your bills.
A Warmer, Cozier Home
Enjoy consistent indoor temperatures without constantly adjusting the thermostat.
Eco-Friendly Living
Using less energy means fewer carbon emissions — making your home greener and more sustainable.
You May Also Qualify For:
Check if you’re eligible for free cavity wall insulation today.
Who Can Get Free Cavity Wall Insulation?
You may be eligible for fully funded cavity wall insulation through the UK Government’s ECO4 or GBIS scheme if your home is hard to heat and your walls are currently uninsulated.
Eligibility is typically based on:
✅ You own the property (landlords may also qualify in some cases)
✅ You receive an income-related benefit or your Council Tax band is A–D (England) or A–E (Scotland)
✅ Your property has suitable cavity walls
✅ Your current EPC rating is low (D or below)
If you meet these requirements, your insulation can be installed at no cost to you — including survey, materials, and installation.
Qualifying Benefits for Free Cavity Wall Insulation
To be eligible for fully funded cavity wall insulation under the ECO4 or GBIS schemes, someone in your household must receive one of the following income-based benefits:
✅ Universal Credit
✅ Pension Guarantee Credit
✅ Pension Savings Credit
✅ Income Support
✅ Job Seeker’s Allowance (Income-Based)
✅ Employment & Support Allowance (Income-Based)
✅ Working Tax Credit
✅Housing Benefit
If any of these apply, your home may automatically qualify for free insulation — including survey, materials, and professional installation.
What Happens After You’re Approved for FREE Cavity Wall Insulation?
Once your eligibility is confirmed through the ECO4 or GBIS scheme, the process is fast, hassle-free, and fully managed by our team. You won’t need to lift a finger — just look forward to a warmer, more energy-efficient home.
Here’s How It Works...
1
Book Your Free Survey
We visit your property to assess your walls, confirm insulation suitability, and verify final grant approval.
2
Installation Plan
We’ll select the ideal insulation material for your home and schedule the installation at a time that suits you.
3
Sit Back While We Install
Our certified engineers complete the work within a few hours — with little to no disruption. Your home stays warmer instantly.
Get Started with Indus Renewables
Ready to make your home more energy efficient?
Find out if you qualify for funding through the ECO4 Scheme and start cutting your energy bills — with zero upfront costs.
Why Choose Indus Renewables?
We’re more than just installers — we’re here to make your home warmer, greener, and more affordable. Here’s why homeowners trust us:
No Upfront Costs
Qualifying households can receive fully funded upgrades through government-backed schemes like ECO4 — with nothing to pay.
Fast Installation Turnaround
From survey to installation, we manage the process efficiently so you can start saving sooner.
Nationwide Coverage
We support homeowners across the UK with reliable, high-quality energy improvements.
Simple, Hassle-Free Process
We handle everything — eligibility checks, paperwork, approvals, and installation — so you don’t have to lift a finger.
Trusted & Accredited Service
Our certified team works to government standards, ensuring safe and professional installations.
Claim Your ECO4-Funded Heating Upgrade
Make Your Home Warmer — Without Paying a Penny
Get cavity wall insulation installed free of charge and enjoy instant energy savings.
Frequently Asked Questions
What is cavity wall insulation?
How do I know if my home has cavity walls?
No — all upgrades are fully funded for eligible applicants. There are no upfront or hidden costs.