If you’re a UK homeowner or tenant looking to reduce energy bills and improve your home’s warmth, cavity wall insulation grants in 2025 could be your perfect solution. Through government-backed schemes like ECO4 and GBIS, many households qualify for free or heavily subsidised insulation. At E-Green, we help you check eligibility in just 60 seconds and manage the grant process from start to finish.
What Is Cavity Wall Insulation?
Cavity wall insulation fills the gap between your home’s inner and outer walls, preventing heat loss. It’s one of the most cost-effective energy-saving improvements available today. The material—usually mineral wool, polystyrene beads, or foam—acts like a blanket, keeping your home warmer in winter and cooler in summer.

Why Apply for a Cavity Wall Insulation Grant?
Here’s why homeowners and landlords across the UK are applying for cavity wall insulation funding in 2025:
- ✅ Lower Energy Bills – Reduce heating costs by up to £300/year
- ✅ Government-Backed Funding – Free or subsidised via ECO4 & GBIS
- ✅ Warmer Homes – Increase comfort with better heat retention
- ✅ Reduced Carbon Footprint – Help meet the UK’s net zero targets
- ✅ Increase Property Value – Higher EPC ratings and resale appeal
Who Is Eligible for Cavity Wall Insulation Grants in 2025?
Under the ECO4 (Energy Company Obligation) and GBIS (Great British Insulation Scheme), eligibility is based on income, property type, and existing insulation measures. You may qualify if:
- You receive certain government benefits (e.g., Universal Credit, Pension Credit, Income Support)
- Your household income is under £31,000/year
- Your property has uninsulated cavity walls
- You live in a home with low energy efficiency (EPC rating D, E, F, or G)
- You are a private tenant with landlord permission
- You own the home or live in social housing (some local authority funding also available)
At E-Green, we also help those who fall outside of benefit thresholds through LA Flex or GBIS partial funding, depending on the council.
How Does the Grant Process Work?
Applying for a cavity wall insulation grant with E-Green is quick, simple, and stress-free:
- 60-Second Online Eligibility Check
Visit our website and complete a short form. No documents needed upfront. - Free Home Survey
If eligible, we arrange a professional assessment of your property. - Grant Approval & Installation
We handle all paperwork and installation using certified installers. - Enjoy the Savings
Start seeing lower energy bills within weeks!
How E-Green Supports You
At E-Green, we’re committed to making energy efficiency accessible to every UK household. Our team works across the country, partnering with accredited installers and government-approved funding providers.
We offer:
- 💡 Transparent advice on ECO4 and GBIS grants
- 📄 Full paperwork and council liaison support
- 🔧 Professional cavity wall insulation installation
- 🕒 Fast turnaround with minimal disruption
- 👩💼 Ongoing customer support
Our goal is simple: help you save money, live more comfortably, and protect the environment—all at zero cost if you’re eligible.
FAQs About Cavity Wall Insulation Grants
Q: Is cavity wall insulation safe for all homes?
A: No—homes exposed to wind-driven rain or with poor brickwork may not be suitable. We assess this during your survey.
Q: Can landlords apply for the grant?
A: Yes, with tenant consent. Landlords can benefit from increased EPC ratings and tenant satisfaction.
Q: How long does the installation take?
A: Most properties are completed in just 3–4 hours, with minimal disruption.
Ready to Check Your Eligibility?
Visit e-green.co.uk now to use our free eligibility checker for cavity wall insulation grants in 2025. In less than a minute, you’ll know if you qualify—no obligation, no cost, no hassle.
E-Green is here to help you stay warm, cut energy bills, and claim what you’re entitled to.