With energy costs on the rise in the UK, improving your home’s energy efficiency is more important than ever. One of the simplest and most effective ways to do this is through insulation.
At Giant Source, we help homeowners and tenants across the UK access free insulation upgrades through the ECO4 Scheme. In this blog, we’ll show you how insulation works, what types are available, and how it can significantly lower your energy bills.
🧊 What Is Home Insulation and Why Is It Important?
Insulation is a barrier to heat loss or heat gain in your home. It keeps your home warm in winter and cool in summer. Without proper insulation, up to 35% of heat is lost through the walls and 25% through the roof.
This means your boiler or heater has to work harder—and your energy bills go up.
🔍 How Does Insulation Help Reduce Energy Bills?
When your home is properly insulated:
- ✅ Your heating system doesn’t need to run as often
- ✅ The warmth stays inside longer
- ✅ You consume less gas and electricity
- ✅ Your home stays comfortable all year round
As a result, homeowners can save up to £300–£600 per year, depending on the size of the property and the insulation installed.
🏠 Types of Insulation That Save You Money
Here are the most common insulation types available under the ECO4 scheme through Giant Source:
1. Loft Insulation
Stops heat from escaping through the roof. Essential for homes with uninsulated or poorly insulated lofts.
📉 Saves up to £300 per year
2. Cavity Wall Insulation
Ideal for homes built after the 1920s. Fills the gap between external walls to prevent heat loss.
📉 Saves around £250–£500 per year
3. Internal Wall Insulation (IWI)
Suitable for solid wall properties where cavity walls don’t exist. Insulates inside-facing walls to trap heat.
📉 Saves around £300–£700 per year
4. External Wall Insulation (EWI)
Adds insulation to the exterior of your property—ideal for solid-wall or hard-to-treat homes.
📉 Saves £400+ per year
5. Room in Roof Insulation (RIR)
If your attic or loft has been converted into a room, RIR ensures it retains heat effectively.
📉 Saves up to £250+ per year
💡 Real Example:
One of our clients in Birmingham received free loft and cavity wall insulation through Giant Source. Their heating bill dropped by nearly £450 per year, and the house feels warmer even on the coldest days.
🆓 Get It Free with ECO4 Through Giant Source
You may qualify for free insulation under the UK Government’s ECO4 Scheme—and Giant Source is here to help you every step of the way.
✔ Eligibility includes:
- Receiving certain benefits (like Universal Credit, Pension Credit)
- Low household income
- Poor Energy Performance Certificate (EPC rating E, F, or G)
- Landlord or private tenant consent (if renting)
We offer:
- Free home surveys
- Fast eligibility checks
- Full project coordination
- Installations via approved partners
📞 Contact Giant Source Today
If you’re ready to reduce your energy bills and make your home more comfortable, don’t wait.
👉 Contact Giant Source for a free insulation assessment and find out if you qualify for a 100% funded installation under ECO4.