Cavity Wall Insulation Grants

Apply for free cavity Wall Insulation Grant through Eltron Energy

Thinking about making your home warmer and more energy efficient? With cavity wall insulation, you could cut your energy bills by up to a third—while reducing heat loss and boosting comfort. At Eltron Energy, we help UK homeowners access free cavity wall insulation grants through government-backed schemes like ECO4 and the Great British Insulation Scheme (GBIS).

Check Your Eligibility Online

This is a government backed scheme    

Gov UK
Who Qualifies for a Cavity Wall Insulation Grant?

Who Qualifies for a Cavity Wall Insulation Grant?

To find out if you’re eligible for a cavity wall insulation grant, check if you meet the following criteria:

Property Type

  • Your home must have cavity walls (usually built after 1920).
  • The property should be suitable for insulation (solid wall properties don’t qualify for cavity insulation).

Residency

  • You must own your home or rent it privately (with landlord consent).
  • It must be your primary residence.

Household Income & Benefits

  • You may qualify if your household income is below £31,000, or if you receive any of the following means-tested benefits:

Universal Credit, Pension Credit (Guarantee/Savings), Housing Benefit, Income Support, Working Tax Credit, Child Tax Credit, Child Benefit (based on income thresholds), ESA (Income-Based), JSA (Income-Based), Cold Weather Payment, Funeral Payment, Sure Start Maternity Grant

Energy Efficiency

  • Your home must have an Energy Performance Certificate (EPC) rating of D, E, F, or G.
Find Out If You Qualify for a Free Cavity Wall Insulation Grant

How to Apply for a Cavity Wall Insulation Grant

We’ve made it easy to claim your free cavity wall insulation. Here’s how:

Apply Online

Fill out our quick online application form. It only takes 60 seconds and lets us start your eligibility check right away.

Apply Online Now

Free Home Assessment

We’ll arrange a free, no-obligation survey of your home to ensure it’s suitable for cavity wall insulation.

Hassle-Free Grant Application

We handle all the paperwork and submit your grant application on your behalf—so you don’t have to worry about a thing.

Eligibility Confirmation  

Our team will review your household and property details to confirm your eligibility for the free cavity insulation grant under ECO4 or GBIS.

Professional Installation

Once approved, our certified local installers carry out the insulation work quickly, cleanly, and to the highest standards.

Benefits of Free Cavity Wall Insulation

Cavity wall insulation is one of the most effective ways to reduce heat loss and lower your energy bills. Most homes built after the 1920s have a gap between the inner and outer walls—this gap can be filled with insulating materials to significantly improve your home’s thermal efficiency.

✅ Reduce Heat Loss – Keep your home warmer in winter.

✅ Lower Energy Bills – Save up to £455 per year* on heating costs.

✅ Improve Home Comfort – Achieve more stable indoor temperatures year-round.

✅ Cut Your Carbon Footprint – Help the UK meet its net-zero targets.

✅ Boost Property Value – Make your home more attractive to buyers.

Get Your Free Cavity Wall Insulation Today
Government Cavity Wall Insulation Grants through Eltron Energy  

Government Cavity Wall Insulation Grants through Eltron Energy  

Eltron Energy helps you access government-funded cavity wall insulation schemes like ECO4 and GBIS. These UK initiatives aim to tackle fuel poverty and boost home energy efficiency. If eligible, you could receive a grant covering 100% of the installation cost – meaning no expense for you.

Testimonials & Reviews from Homeowners Utilizing Cavity Wall Insulation Grants

A Seamless Experience
“Eltron Energy made the process so simple. I applied online, and within two weeks, my insulation was installed—and it didn’t cost me a penny.”
Margaret T., Leeds
Lower Bills Already!
“Fantastic service! The team at Eltron explained everything clearly. My house feels warmer, and I’ve already noticed lower energy bills.”
Ben S., Manchester
Perfect for Pensioners
“I receive Pension Credit and was thrilled to learn I qualified for a free grant. The installation was fast, and the results are brilliant.”
Dorothy K., Southampton
Smooth Process from Start to Finish
“Eltron Energy handled everything for me. I qualified for the grant, and the insulation was installed within a week. My heating bills are already lower!”
Jane M., Bristol
Professional and Reliable
“The team was helpful, honest, and efficient. The cavity insulation made a noticeable difference within days.”
David H., Newcastle

FAQs  (Frequently Asked Questions)    

Cavity wall insulation involves filling the space between the inner and outer walls of your home with materials like mineral wool, foam, or polystyrene beads. It reduces heat loss, keeps your home warmer, and cuts energy costs. Ideal for homes built after the 1920s.

Yes. Programs like ECO4 and GBIS offer free cavity wall insulation grants to eligible UK households. These grants typically cover 100% of the installation cost.

Absolutely. If you meet the eligibility criteria (e.g., receiving certain benefits or having a low EPC rating), you can get cavity wall insulation for free through Eltron Energy’s government-backed service.

Yes, pensioners receiving benefits like Pension Credit or Housing Benefit are usually eligible for free insulation under ECO4 or GBIS.

Definitely. It improves energy efficiency, reduces heating bills, and enhances comfort. It’s one of the most cost-effective upgrades for UK homes.

Privately, it can range from £1,000 to £4,500 (estimated), but eligible households pay nothing through government grants.

Only if installed inappropriately. That’s why our expert survey ensures your home is suitable before we proceed.

Look for signs like damp patches, musty smells, or mold. Contact us for a professional inspection if you’re unsure.

Yes! When installed correctly, it drastically improves thermal performance, reduces energy usage, and keeps your home consistently warm.

Only if installed inappropriately. That’s why our expert survey ensures your home is suitable before we proceed.

You Might Also Qualify For:

Boiler Grants

First Time Central Heating Grants

Storage Heater Grants

Air Source Heat Pump Grants

Solid & External Wall Insulation Grants

Eltron Energy – Your Trusted Partner for Heating & Insulation Grants in the UK

Check If You Qualify