Are you struggling with high energy bills and a cold home? A free insulation grant could be the solution you’ve been searching for. With the UK government offering support through the ECO4 Scheme and the Great British Insulation Scheme (GBIS) in 2025, many households can now access free loft, cavity wall, and underfloor insulation.
At Prisma Boiler Grants, we help low-income households across the UK claim free insulation grants with zero hassle and no upfront costs.
- Start your 20-second eligibility check and unlock energy savings worth up to £1,500+
- Check Eligibility Now
Why Free Insulation Grants Matter in 2025
Heating an uninsulated home is like pouring money out of your walls and roof. A shocking 25% of household heat escapes through the roof and 35% through the walls — making proper insulation one of the fastest ways to cut your energy bills.
In response, the UK government is funding insulation through:
- ECO4 Scheme (Energy Company Obligation)
- Great British Insulation Scheme (GBIS)
These grants help homeowners and tenants install free insulation to improve home energy efficiency and reduce carbon emissions — especially in areas with high fuel poverty.
What Types of Free Insulation Are Covered?
Under the 2025 insulation grants, you may be eligible for:
- Free Loft Insulation
Prevents up to 25% of heat loss through the roof. Ideal for homes with no or old loft insulation. - Cavity Wall Insulation
Fills the space between external walls to stop heat escape. Suitable for homes built after 1920s. - Solid Wall Insulation
Internal or external insulation for older properties with solid walls. - Underfloor Insulation
Great for homes with suspended timber floors – reduces draughts and heat loss. - Room-in-Roof Insulation
For converted lofts or attics used as bedrooms or offices.
At Prisma Boiler Grants, we’ll help identify the best options for your property during your free survey.
Who Is Eligible for Free Insulation Grants in the UK (2025)?
You could qualify if:
- You receive income-related benefits like:
- Universal Credit
- Pension Credit
- Child Tax Credit
- Income Support
- Housing Benefit
- Your property has a low EPC rating (D, E, F or G)
- You live in a home that lacks proper insulation
- You’re a homeowner or private tenant (with landlord’s consent)
Special focus areas in 2025 include homes in cold or fuel-poor postcodes — even without benefits, you might still qualify.
Step-by-Step Guide: How to Apply for a Free Insulation Grant
Step 1 – Check Your Eligibility Online
Use Prisma’s quick 20-second form to find out if you qualify. You’ll need basic info like your postcode, income type, and property details.
Step 2 – We Contact You to Confirm Details
One of our friendly advisors will call you to discuss your home’s insulation needs and confirm your grant eligibility under ECO4 or GBIS.
Step 3 – Book a Free Home Survey
A qualified surveyor visits your home to assess what insulation measures are needed. This is completely free of charge.
Step 4 – Free Installation by Certified Engineers
If approved, our TrustMark, PAS2030 and Gas Safe registered engineers will install the insulation at no cost to you.
Step 5 – Enjoy a Warmer Home & Lower Energy Bills
After installation, your home will be more energy-efficient, comfortable and cheaper to run — with savings of £250–£500+ per year.
Real Stories from UK Homes We’ve Helped
“We had our cavity walls and loft insulated through Prisma — 100% free. Our energy bill dropped by £65/month this winter.” – Elaine, Kent
“I didn’t think I’d qualify as I’m not on benefits, but Prisma helped us apply through LA Flex. Smooth process from start to finish.” – Marcus, Manchester
Why Choose Prisma Boiler Grants?
Trusted UK-wide provider of free heating & insulation solutions
Certified engineers, surveyors & compliance team
No cold calling, no pushy sales – just honest, expert advice
5-star rated for speed, reliability and results
Our mission is to help low-income UK households and pensioners live comfortably and affordably.
FAQs – Free Insulation Grants UK 2025
Q: Is it really 100% free?
Yes – if you meet the criteria, the entire cost is covered by energy suppliers under the ECO4 or GBIS funding.
Q: Can I get a boiler AND insulation grant?
Absolutely. If your home qualifies, we can bundle a free A-rated boiler with your insulation upgrade.
Q: How long does the process take?
Typically 2–4 weeks from application to installation, depending on survey and scheduling.
Q: I live in a rented property – can I apply?
Yes, with your landlord’s consent. We can guide you through the process.
Ready to Slash Your Energy Bills? Apply for a Free Insulation Grant Today!
Don’t wait until winter bites back. Take action now and enjoy a warmer, more energy-efficient home — without spending a penny.
Click here to start your FREE eligibility check with Prisma Boiler Grants
Serving households across England, Wales, Scotland & Northern Ireland