Get Free Cavity Wall and Loft Insulation Through the Great British Insulation Scheme

Struggling with rising energy bills? You could be eligible for free cavity wall insulation or loft insulation under the Great British Insulation Scheme (GBIS) or the ECO4 Grant. At BoilerGasGrant, we specialise in helping UK households upgrade their home insulation — completely free of charge if you qualify.

Act now to secure a cavity wall insulation grant or loft insulation grant and make your home warmer, more efficient, and cheaper to run.

Check Your Eligibility

What Is the Great British Insulation Scheme?

The Great British Insulation Scheme (GBIS) is a government initiative designed to support households in improving energy efficiency. It funds upgrades like loft insulation and cavity wall insulation, helping to reduce both energy bills and carbon emissions.

If you qualify, you could receive:

  • Cavity wall insulation
  • Loft insulation roll installation
  • Or BOTH
See if you Qualify

Why Insulate Your Home?

Benefits of Cavity Wall Insulation

Benefits of Cavity Wall Insulation

  • Save up to £240 per year on your energy bills
  • Reduce heat loss through external walls by up to 35%
  • Cut 650kg of CO₂ emissions annually
  • Comes with a 25-year insurance-backed guarantee
  • Instantly improve indoor comfort

We provide:

  • Cavity wall with insulation options
  • Access to all cavity wall insulation grants

Standard cavity wall insulation cost or cavity wall insulation price ranges from £800 to £2,500 — but with us, it could be completely covered by the GBIS or ECO4 grant.

Benefits of Loft Insulation

  • Prevent up to 25% of heat loss through your roof
  • Reduce heating bills by £250–£400 a year
  • Improve your home’s EPC rating
  • Increase your property value

We install:

  • Top-quality loft insulation roll
  • Fully grant-backed, with no cost to you if eligible

Without a grant, loft insulation cost can be high, you can take advantage of your loft insulation grant today.

Benefits of Loft Insulation

Who Is Eligible for the Grant?

Property Requirements:
  1. Your home must have an EPC rating from D to G
     Check your EPC here
  2. Must be in Council Tax bands A–D (England) or A–E (Wales and Scotland)
  3. Must be suitable for cavity or loft insulation — we’ll confirm this in a free survey
Occupant Requirements:
  • Homeowners: Eligible based on property EPC and Council Tax band
  • Private tenants: Must be receiving a qualifying benefit like:

(Universal Credit, Pension Credit, Income Support, Housing Benefit, Child Tax Credit, And others)

What’s Covered in the Insulation Grant?

  • Full supply and installation of cavity wall insulation
  • Complete loft insulation installation
  • Materials, labour, surveys — everything included
  • Possibility to receive both under ECO4 if the home qualifies
Check Eligibility
How You’ll Benefit from Cavity Wall Insulation

How You’ll Benefit from Cavity Wall Insulation

  • Save on your energy bills — up to £240/year
  • 25-year guarantee — backed by a Qualitymark-accredited installer
  • Sustainability — reduce carbon footprint by 650kg/year
  • Reduce need for heating and cooling systems
  • Protect your home from mould, damp, and drafts

And don’t worry about the typical cavity fill insulation cost — if you qualify, it’s fully funded.

Act Now – Check If You Qualify

Don’t miss out. Our free and fast eligibility check can tell you if you’re entitled to:

  • Loft insulation grant
  • Cavity wall insulation grants
  • Full coverage of cavity wall insulation cost or loft insulation cost
  • No upfront charges or hidden fees
Click here to check your eligibility now