Energy Company Obligation (ECO4) – Free Home Insulation & Heating Upgrades

Looking for free or subsidised home energy upgrades? The Energy Company Obligation (ECO4) is a UK Government-backed scheme that helps low-income and vulnerable households across the UK reduce energy bills and improve the energy efficiency of their homes. Running from April 2022 to March 2026, ECO4 is the fourth phase of this long-standing initiative and provides up to £1 billion in annual funding for vital home improvements.

If your home has a poor EPC rating (D to G) and you’re struggling with heating costs, the ECO4 scheme could help cover the full cost of improvements such as loft insulation, cavity wall insulation, and new heating systems. It’s part of a wider push to tackle fuel poverty, cut carbon emissions, and prepare homes for a low-carbon future.

What Is ECO4?

The Energy Company Obligation (ECO4) is a legal requirement for large UK energy suppliers to deliver energy efficiency measures to qualifying homes. Unlike typical grants that require applications from homeowners, ECO4 funding is delivered through energy companies, who work with registered and certified installers to identify eligible properties and carry out upgrades.

Through ECO4, you may be eligible to receive home insulation, boiler replacements, heat pumps, and smart heating controls, all free of charge or heavily subsidised, depending on your situation.

What Does the ECO4 Scheme Cover?

Depending on your property and needs, ECO4 can cover:

  • Loft insulation
  • Cavity wall insulation
  • Room-in-roof insulation
  • Solid wall insulation (internal or external)
  • First-time central heating installations
  • Air source heat pumps
  • Smart heating controls and thermostats
  • Electric storage heater upgrades
  • Replacement of broken or inefficient boilers

All works are carried out by certified installers using industry-recognised materials, often with a 20+ year lifespan. Measures are selected based on your home’s specific needs and the most effective route to improve efficiency and reduce emissions.

Why Choose ECO4?

Free energy efficiency upgrades for eligible households
Reduce heating bills by hundreds of pounds per year
Improve your home’s EPC rating
Increase comfort, warmth, and indoor air quality
Lower carbon emissions with sustainable heating

How to Apply for ECO4

Applying for ECO4 is straightforward. Here’s how it works:

  1. Check your eligibility – We can help you assess if you qualify.
  2. Find a registered ECO4 installer – We’ll connect you with approved local partners.
  3. Book a property survey – To determine which measures your home needs.
  4. Get upgrades installed – At no cost to you if you’re fully eligible.

Many homeowners don’t realise they’re eligible, so it’s worth checking, even if you’ve applied for other energy grants before.

With energy prices still high, applying for ECO4 could be the easiest way to secure free home insulation and long-term savings for your household.

Ready to Upgrade Your Home for Free?

If you think you might qualify for ECO4 free home insulation or heating upgrades, now is the perfect time to act. At Celtic Dynamics, we’ll help you check eligibility, connect with certified installers, and guide you through the process, from survey to installation.

Don’t miss out on support that could cut your energy bills and make your home warmer, greener, and more efficient.

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