Cavity Wall Insulation | Vantage ECO

Free Cavity Wall Insulation

If your home feels cold or expensive to heat, cavity wall insulation could make a big difference — and it could be completely free. Through the Great British Insulation Scheme (GBIS), eligible households can receive free cavity wall insulation, helping to keep heat in, reduce energy bills, and improve home comfort. With Vantage Eco, checking your eligibility takes less than a minute.

What Is the Great British Insulation Scheme?

The Great British Insulation Scheme (GBIS) is a UK Government-backed programme designed to help households improve their home’s energy efficiency.

Unlike ECO4, GBIS is open to a broader range of households, including many people not receiving benefits, as long as their home has poor insulation and a lower EPC rating.

Under GBIS, energy suppliers fund insulation measures — including cavity wall insulation — to help reduce heat loss and lower energy bills.

Why Install Cavity Wall Insulation?

Uninsulated cavity walls can be responsible for up to 35% of heat loss in a typical UK home.
Installing cavity wall insulation through GBIS can help you:

  • 🏠 Keep your home warmer for longer

  • 💷 Reduce heating bills year after year

  • 🌬️ Eliminate cold spots and draughts

  • 🌍 Lower your carbon footprint

  • 📈 Improve your EPC rating, boosting property value

All installations are completed by certified, approved installers using industry-standard materials.

100% Funded

Many households pay nothing at all under GBIS

Quick Installation

Most installs are completed in one day

Long-Lasting Results

Insulation typically lasts 25+ years

Image of a warm living room with a blanket infront of a fire

How the GBIS Insulation Process Works

1. Check your eligibility — use our simple online form (takes 30 seconds).

2. Home energy assessment — we’ll arrange a free survey if you qualify.

3. Installation — our trusted partners fit your new A-rated boiler.

4. Enjoy lower bills — Enjoy a warmer, more energy-efficient home with lower bills.

We manage the full process — no paperwork, no hassle.

GBIS Cavity Wall Insulation FAQs

Homeowners and private tenants may qualify if their property has uninsulated cavity walls and a low EPC rating. Some households do not need to be on benefits.

Check if your home qualifies for free cavity wall insulation — it takes less than a minute.