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What Is External Wall Insulation?

External Wall Insulation (EWI) adds a continuous layer of insulating material to the outside of your home’s walls, then finishes it with a weather‑proof render or cladding. It’s one of the most effective ways to reduce heat loss through solid or cavity walls, cutting your energy bills and carbon footprint.

Key Benefits of EWI

•Lower Energy Bills: Up to 35% of heat escapes through uninsulated walls; EWI can save hundreds on annual heating costs  .

•Improved Comfort: Keeps rooms warmer in winter and cooler in summer by eliminating cold spots and draughts  .

•Increased Property Value: Homes with higher Energy Performance Certificate (EPC) ratings are more attractive to buyers and tenants  .

•Long‑Lasting Guarantee: Installations typically come with a 25‑year, insurance‑backed guarantee  .

•Reduced Carbon Emissions: Helps the UK meet its 2050 net‑zero goal by slashing household CO₂ emissions.

Who Qualifies for a Free ECO4 Grant?

Under the UK’s ECO4 scheme (1 April 2022 – 31 March 2026), larger energy suppliers fund insulation measures for vulnerable and low‑income households. You may qualify if you:

•Have an EPC rating of D–G.

•Live in Council Tax Band A–D (England) or A–E (Scotland/Wales).

•Receive one or more of the following income‑related benefits:

•Universal Credit, Income‑based Jobseeker’s Allowance, Income Support, Employment & Support Allowance

•Pension Credit (Guarantee or Savings Credit)

•Child Tax Credit, Working Tax Credit, Housing Benefit

•Warm Home Discount Scheme Rebate  .

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How the FreehouseKit ECO4 EWI Process Works

1. Check Eligibility

Enter your home details and benefits on our quick online form.

2. Energy Assessment

An MCS‑ or PAS2030‑accredited assessor visits to confirm wall type (solid or cavity), measure walls and check suitability  .

3. Grant Approval

We liaise with your energy supplier to secure full funding for EWI materials, labour and the 25‑year guarantee.

4. Installation

Certified installers fix starter rails, apply 100 mm (or optimal thickness) EPS or mineral‑wool boards, then finish with breathable render or brick‑effect cladding.

Why Choose FreeHouseKit.co.uk?

•100% Free to You

We handle everything—from eligibility checks to liaising with installers—so you don’t pay a penny.

•Trusted Installers

All EPC‑trained and MCS‑certified installers meet strict quality and safety standards.

•No Hidden Fees

The ECO4 grant covers the full installation cost; there are never any surprise charges.

•Fast, Hassle‑Free

Most approvals granted within 1–2 weeks; installations scheduled at your convenience.

Frequently Asked Questions

Is there any cost to me?

No—if you meet ECO4 criteria, the scheme covers 100% of EWI installation costs, including materials, labour and guarantee.

Typically 3–7 days for an average semi‑detached house, depending on wall area and access.

We offer a range of colour renders and decorative finishes, or brick‑effect cladding, so you can refresh your exterior look.

Tenants can apply—but you’ll need written permission from your landlord before work begins  .

Yes. ECO4 encourages a whole‑house approach. You may also qualify for loft insulation, boiler upgrades or solar PV under the same scheme.

Ready to Upgrade Your Walls for Free?

1.Check Your Eligibility: Fill in our 2‑minute form.

2.Instant Pre‑Assessment: We’ll let you know within 24 hours.

3.Fully Funded Installation: Enjoy draught‑free comfort and big savings!

Free House Kit is a multi-award-winning solar panel, air source heat pump, and insulation installer. We are based in Sheffield and operate the national scale.

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