Underfloor Insulation Grants

Get Free Underfloor Insulation in the UK – No Cost for Eligible Homes

Did you know that up to 25% of your home’s heat can escape through uninsulated floors? With the help of underfloor insulation grants under the UK’s ECO4 and Great British Insulation Scheme (GBIS), you could qualify for free underfloor insulation and start cutting your energy bills today.

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This is a government backed scheme    

Gov UK
How Do Underfloor Insulation Grants Work?

How Do Underfloor Insulation Grants Work?

Through the ECO4 and GBIS government schemes, eligible UK households can receive up to 100% funding for:

  • Underfloor insulation installation
  • Insulation for underfloor heating systems
  • Other energy-efficiency upgrades (e.g., loft or wall insulation)

Who Qualifies for Free Underfloor Insulation in the UK?

You may qualify for free underfloor insulation if you meet any of the following:

Income-Based Eligibility

  • Annual household income under £31,000

Benefit Recipients

Universal Credit, Housing Benefit, Income Support, Child Tax Credit / Working Tax Credit, Pension Credit, Income-based Jobseeker’s Allowance (JSA), Employment and Support Allowance (ESA)

EPC Rating & Property Type

  • Home has an EPC rating of D, E, F, or G
  • Suspended timber floor with accessible crawl space
  • Owner-occupied or privately rented (landlord permission required)
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Who Qualifies for Free Underfloor Insulation in the UK?

How to Apply for the Underfloor Insulation Grant

Getting started is easy with Eltron Energy:

Quick Eligibility Check

Fill out our short online form to get started.

Grant Approval

We handle the full application process and secure your funding.

Free Home Survey

Our experts will visit your home to assess your floors and insulation needs.

Professional Installation

Our in-house team installs your underfloor insulation with minimal disruption.

Apply for Your Free Insulation Grant Now

Why Choose Eltron Energy for Your Home Insulation?

  •  We carry out the entire process—from eligibility check to insulation installation
  • Free expert survey with no obligation
  • In-house professionals—no subcontractors
  • 100% grant-backed, no hidden costs
  • Fast, friendly and efficient service across the UK

Join thousands of UK households making their homes warmer and cheaper to heat—with no upfront cost.

Start Your Free Application Now
Reviews from Our Happy Customers Who Trusted Us
No More Cold Floors!
“I used to dread walking barefoot in the mornings. After getting free underfloor insulation, my home feels warmer and cozier all day!”
James R., Leeds
Fast, Friendly, and Free!
“Eltron Energy handled everything for me. The grant covered all the costs, and the installation only took a few hours.”
Lauren M., Bristol
Lower Bills Instantly
“Our heating bills dropped noticeably after the insulation. We’re saving about £250 a year now!”
Derek W., Cardiff
Great for My Rented Property
“I rent my home, and the landlord was happy to approve the install. The team did a brilliant job.”
Simran P., London
Perfect for Older Homes
“My Victorian house was losing so much heat. This grant helped insulate the floors at no cost to me. Highly recommend.”
Patricia S., Manchester

Frequently Asked Questions (FAQs)

Yes! If you meet the income, benefits, or EPC rating criteria, you may qualify for free underfloor insulation through GBIS or ECO4 grants.

You could receive up to 100% funding, depending on your eligibility and the size of your property.

This depends on your floor type, home size, and accessibility. Our surveyors will assess and recommend the right solution during your free survey.

Rigid insulation boards or mineral wool are commonly used. We use high-quality materials best suited for suspended timber floors.

Just fill out our online form, and we’ll guide you through the process—from survey to installation.

Absolutely. It can prevent up to 25% of heat loss, reduce bills by up to £300/year, and make your home far more comfortable.

Underfloor insulation grants are the most cost-effective solution—especially if you qualify for 100% funding.

Homeowners or private renters who meet the income, benefit, or EPC criteria. Your home must have a suitable floor type (typically suspended timber).

You Might Also Qualify For:

Cavity Wall Insulation Grants

Boiler Grants

Loft Insulation Grants

Storage Heater Grants

Air Source Heat Pump Grants

Eltron Energy – Your Trusted Partner for Heating & Insulation Grants in the UK

Check If You Qualify