Claim Your FREE Insulation Grant – Backed by Government Schemes!
You Could Be Eligible Without Benefits – Fast & Easy Checks in Minutes
Free for Eligible Homes
Energy-saving / Lower Energy Bills
Quick 1-Minute Application
Grant Worth Up to £40,000
Get free or discounted insulation through the Great British Insulation Scheme (GBIS) — reduce your bills and make your home warmer today.
Free Home Insulation Grant Eligibility Check
Find out if you qualify for a non-repayable home insulation grant under the UK Government-backed ECO4 and Great British Insulation Scheme (GBIS). Improve your home’s energy efficiency, lower your heating bills, and make your property warmer with free or discounted insulation upgrades.
Backed by the UK Government and trusted energy suppliers — helping UK homes save energy through the ECO4 and GBIS insulation schemes.
Make Your Home Warmer and More Energy Efficient with Free Insulation Grants
Through the Great British Insulation Scheme (GBIS) and ECO4, eligible UK households can access free or discounted home insulation to improve energy efficiency and reduce heat loss.
Insulation helps keep your home warmer in winter and cooler in summer, cutting energy waste so your boiler works less and your bills stay lower.
Both schemes are Government-backed and funded by major UK energy suppliers, helping homeowners, landlords, and tenants improve thermal performance. Depending on your property, you could qualify for:
Loft Insulation – Prevents heat escaping through the roof.
Cavity or Solid Wall Insulation – Reduces heat loss through walls.
Room in Roof or Underfloor Insulation – Boosts comfort in hard-to-heat areas.
All work is completed by TrustMark-registered installers in line with PAS 2035 standards.
Check your eligibility today and start saving with the GBIS or ECO4 scheme.
GBIS and ECO4 Eligibility for Homeowners and Tenants
GBIS — Homeowners
- Eligible if your property’s EPC is typically D–G.
- You or your property meet Council Tax band criteria or a qualifying benefit applies.
- Free or discounted insulation installed by TrustMark-registered installers.
ECO4 — Homeowners
- Focused on low-income or vulnerable households with lower EPC ratings.
- Qualification via means-tested benefits, Child Benefit income caps, or LA Flex.
- Supports whole-home upgrades, including insulation and other measures.
GBIS — Tenants
Eligible if the rented home’s EPC is typically D–G.
Household meets Council Tax band criteria or a qualifying benefit applies.
Landlord permission required before survey and installation.
ECO4 — Tenants
- Available for privately rented homes where the EPC is lower and the household qualifies.
- Eligibility through benefits, Child Benefit income caps, or LA Flex with proof of residency.
- Landlord permission required; upgrades fitted by TrustMark-registered installers.
You Qualify for a Free Insulation Grant
You could qualify for free or heavily subsidised home insulation through the Great British Insulation Scheme (GBIS) or the ECO4 scheme if your household receives one of the benefits listed below, or if you meet your local council’s flexible eligibility (LA Flex) criteria.
Core Qualifying Benefits
- Pension Credit (Guarantee or Savings Credit)
- Income-based Jobseeker’s Allowance (JSA)
- Income-related Employment & Support Allowance (ESA)
- Income Support (IS)
- Universal Credit (UC)
Tax & Housing Benefits
- Working Tax Credit (WTC)
- Child Tax Credit (CTC)
- Housing Benefit
- Child Benefit
Local Authority Flexibility (LA Flex)
If you don’t receive the listed benefits, you could still qualify under LA Flex if your home meets one or more of these:
- Low household income
- High energy bills
- EPC rating of D–G
- Health issues affected by cold or damp homes
How It Works
Step 1 – Check Your Eligibility
Complete our quick 60-second online form to see if you qualify for a free or discounted insulation grant under the Great British Insulation Scheme (GBIS) or ECO4 scheme.
You don’t need to be an existing energy supplier customer — just provide your basic details and postcode to get started.>
Step 2 – Free Home Energy Assessment
If you’re eligible, one of our accredited assessors will contact you to arrange a free home energy survey.
We’ll inspect your property’s insulation, heating system, and energy performance to determine the best energy-saving improvements for your home.
Step 3 – Professional Installation
Once approved, your insulation installation will be carried out by TrustMark-registered installers following PAS 2035 standards.
We’ll handle everything from setup to quality checks — ensuring your home becomes warmer, more energy-efficient, and cheaper to heat.
Frequently Ask Questions
The Great British Insulation Scheme is a government-backed programme that provides free or discounted home insulation to help UK households reduce heat loss, lower energy bills, and improve energy efficiency.
The ECO4 (Energy Company Obligation) Scheme helps low-income or vulnerable households improve their home’s energy efficiency through insulation, heating, and renewable energy upgrades — funded by major UK energy suppliers.
You may qualify if your home has an EPC rating of D–G and you receive certain government benefits, or meet Council Tax band or local authority (LA Flex) criteria.
The ECO4 Scheme supports homeowners, private tenants, and landlords with low-income households or those receiving qualifying benefits such as Universal Credit, Housing Benefit, or Child Tax Credit.
Not always. Under GBIS, households can qualify through Council Tax band or LA Flex criteria even without benefits. Under ECO4, most funding is available for households receiving eligible benefits or meeting income thresholds.
Most applications take only a few minutes to check eligibility online, followed by a short phone consultation and property survey before installation.
No — you can apply for GBIS or ECO4 funding regardless of your energy supplier. The scheme is open to all eligible UK households.
Typically, you’ll need:
Proof of benefits (if applicable)
Property ownership or tenancy documents
EPC or address details for verification
Available insulation measures include:
Loft insulation
Cavity wall insulation
Solid wall insulation (internal or external)
Room in roof insulation
Underfloor insulation
Households can save up to £470 per year on energy bills depending on their property type and the insulation installed.
Yes — if you’re a tenant, your landlord’s consent is required before installation begins. All work is completed by TrustMark-registered installers following PAS 2035 standards.
Your Council Tax Band determines your property’s value range and affects GBIS eligibility. You can check it on your local council website or via GOV.UK.
An Energy Performance Certificate (EPC) shows your home’s energy efficiency from A (most efficient) to G (least efficient). You can check your rating for free at find-energy-certificate.service.gov.uk.
Yes — if you qualify under ECO4 or GBIS, the grant is non-repayable and fully or partially funded by major UK energy suppliers under government regulations.
All installations are carried out by TrustMark-approved and PAS 2035-compliant retrofit installers to ensure quality and compliance.
Yes — both ECO4 and GBIS are available across England, Scotland, and Wales, with slightly different eligibility based on local authority and property type.
