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Underfloor Insulation Grants

Discover If Underfloor Insulation Grants Are Available To You

Check your eligibility - it only takes 60 seconds


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Let ZOA Energy Solutions guide you towards an under floor insulation grant today

Government grants for underfloor insulation are out there, so it’s worth checking to see if you qualify for free or subsidised underfloor insulation today. Underfloor insulation can bring a range of benefits, and many homeowners are turning to it as a way to better insulate their home, improve their thermal efficiency, and save big on heating bills.

All you need to do to get started is fill out our quick form (it’ll take less than 60 seconds) with the following information:

  • Your address
  • Your name 
  • Your email 
  • Your phone number 


Following that, a member of our expert insulation customer service team will be in touch to discuss underfloor insulation grants in greater depth, and advise you further about the eligibility criteria.

Why Choose Underfloor Insulation Now?

Underfloor insulation will bring a range of benefits to your home. It improves you home’s energy efficiency, helping bring down energy bills, cut carbon emissions, make your home more comfortable (especially during winter), and can even help reduce damp problems in your home.

With so many reasons to install underfloor insulation, it makes sense to check if you qualify for an underfloor insulation grant today.

Can I Get A Grant For Underfloor Insulation?

Most government grants for underfloor insulation are open to homeowners and private tenants (who will need to encourage their landlord to apply for the grant).

We’ll cover all the eligibility criteria for each relevant underfloor insulation grant below to give you a better idea of whether you’ll qualify for funding.

How Much Can A Government Grant For Underfloor Insulation Save Me?

In terms of upfront cost, you might not have to pay anything for your underfloor insulation – although the amount you’ll receive from any grant will be decided on a case by case basis and it might not always cover the full cost. It will, however, cover the bulk of the cost if you qualify for a grant.

In terms of the amount you’ll save each year on energy bills with underfloor heating, the UK government estimates that the most energy inefficient homes could save £300 to £400 annually with insulation improvements.

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Does This Apply To You?



Find out in 60 seconds if you qualify!

Underfloor Insulation UK Cost

There are different types of underfloor insulation, different companies installing them, and different sized houses, meaning we won’t be able to tell you exactly how much your particular project will cost. 

We can, however, provide some example prices below:

Property Type

Average Cost Of Underfloor Insulation Installation

How long will it take?


£450 to £750

1 day

Terraced House

£800 to £1200

1-2 days


£1200 to £1750

2-3 days


£1500 to £3000

3-4 days


As you can see, prices range significantly. But remember, it might not cost you a penny if you qualify for a full free underfloor insulation government grant!

UK Grants For Underfloor Insulation Guide

We always keep up to date with the latest developments in insulation grants, so it’s always a good idea to check back here if you’re ever unsure if you qualify for a grant. To help, we’ll cover the different eligibility criteria of each grant below.

Underfloor Insulation Grants/Funding List

Great British Insulation Scheme Guidance

The Great British Insulation Scheme replaced ECO+ and began in summer 2023, and is expected to last until March 2026. With £1 billion in funding on offer to support 300,000 British homes, there’s a good chance you could be one of those to benefit from floor insulation grants, especially if you’re living in a low energy efficient home with a poor Energy Performance Certificate (EPC) rating. But there’s more criteria than just that…

How Do I Qualify For Support Under The Great British Insulation Scheme?

To qualify for the Great British Insulation Scheme, you’ll need to:

  • Be living in a home with an EPC rating of D or below, AND
  • Be living in council tax band A-D in England, A-E in Scotland and Wales




  • Be receiving means tested benefits, AND
  • Be living in a home with an EPC rating of D or below


The aim of the scheme is to target support towards the least energy efficient homes in Great Britain to help those living in them with spiralling energy bills and to control the carbon emissions being created by those energy inefficient properties. 

If you meet any of the above criteria, then contact ZOA Energy Solutions today and we’ll talk with you about the grant and eligibility criteria in greater detail.

ECO4 Under Floor Insulation Grant Guidance

Energy Company Obligation (ECO4) is another of the government grants for underfloor insulation, and it also targets the least energy efficient homes and households with the lowest incomes. The ECO scheme has been running since April 2022 until the end of March 2026, and it offers £4 billion in funding.

In order to be eligible for ECO4 grant support, you will need:

  • To be in receipt of government benefits OR someone in your household/a tenant is (a list of benefits that qualify is below)
  • To have an EPC rating of D-G
  • To be in receipt of Child Benefits AND have a household income below a certain amount (more below)
  • Income-Based Jobseekers Allowance
  • Income-Related Employment & Support Allowance
  • Income Support
  • Pension Credit Guarantee 
  • Working Tax Credit
  • Child Tax Credits 
  • Universal Credit
  • Housing Benefit
  • Pension Credit Savings

For single-parent households:

  • 1 child: £19,800
  • 2 children: £24,600
  • 3 children: £29,400
  • 4+ children: £34,200


For two-parent households:

  • 1 child: £27,300
  • 2 children: £32,100
  • 3 children: £36,900
  • 4+ children: £41,700

Does This Apply To You?



Find out in 60 seconds if you qualify!

LA Flex Underfloor Insulation Guidance

If you don’t qualify for ECO4 or the Great British Insulation Scheme, then the good news is you may still qualify for LA Flex support for your underfloor insulation, or even other energy saving measures, such as cavity wall insulation or loft insulation.

LA Flex (Local Authority Flexible Eligibility Scheme) is similar to ECO4 in that it targets energy inefficient homes and households with low income, but there is greater flexibility in the eligibility criteria, so local authorities and councils can better target houses in their areas that need the support to help them reduce heat loss and boost their annual energy savings.

Am I Eligible For Support Under LA Flex?

As we said above, LA Flex gives councils and local authorities the power to extend their eligibility criteria to better target those that need it. As such, you may need to check with your council or local authority to see if you qualify, but there is some general guidance for councils and local authorities, so if you meet the following criteria, you’ll likely qualify for the grant:

  • Have an annual household income of less than £31,000, OR
  • Have health problems that may be worsened by living in an energy inefficient home such as cardiovascular problems, mobility issues, respiratory issues, or immune-suppressed conditions, OR
  • You meet two of the following criteria whilst living in a home with an energy rating of E, F, or G:
    • House in LSOA 1-3 Area (recognised as an area of deprivation in the UK)
    • Householder receives Council Tax rebates due to low income 
    • Householder is considered vulnerable to living in a cold home according to nationally recognised NICE guidance
    • You have been referred to LA Flex by the Local Authority Delivery (LAD) Scheme due to being vulnerable and in a low income household
    • Members of the household are in receipt of free school meals
    • Citizens Advice, your energy supplier, or your mortgage lender has advised you to seek help from government schemes due to sustained debt on mortgage payments or utility bills

0% VAT On Underfloor Insulation

It’s also worth noting that underfloor insulation is cheaper than ever, and you don’t necessarily have to apply to government grants for underfloor insulation to benefit. The UK government has placed a 0% VAT level on all Energy Saving Materials in the UK – and underfloor insulation is part of that.

This will last until the end of March 2027, and there are no restrictions. It’s simply applied to all underfloor insulation products until then, meaning you’re already saving money without underfloor insulation grants (but extra savings is nice, too, right?).

Why Trust ZOA Energy Solutions

Saving our customers money is our number one priority. Yes, we can install underfloor insulation for you, and yes, we’ll do an expert job. But we also want to help you save the most money on your installation, so we’ve also become experts in grants as a result! And the more money we save you, the better we’ve done our job in our opinion.

Contact us today, and we’ll discuss insulation grants in greater depth with you.

And all you need to do? Fill out a quick form and we’ll be in touch as soon as possible!

Underfloor Insulation Grants FAQs:

Not everybody can, of course, but plenty of people will qualify for a completely free underfloor insulation installation with government grants. But if you qualify, and it’s decided that your full installation will be covered, then yes, it will be 100% free. 

In terms of the grant application process – it’s different for each one, which can complicate things a little if you’re new to the grants already and unsure if you actually qualify. 

To help take the stress out of insulation grants, we can advise you further and tell you the steps you’ll need to take in order to get the grants you’re looking for. Fill out our quick form today, and we’ll be back in touch soon.

In most cases, you won’t require planning permission so will be free to press ahead regardless of the type of floor you are insulating, from concrete floors to wooden floors and suspended floors. However, if your home is a listed building, in a conservation area, or in an area of outstanding natural beauty, then you will usually need to seek planning permission before carrying out any work of this nature.

Most underfloor insulation materials will come with a warranty of around 25 years, but some can last longer than that. So long as it doesn’t get damp or damaged, there’s no reason why your underfloor insulation can’t last for a significantly long time.

Whether you are insulating a concrete ground floor, a suspended timber floor or other type of floor, you should expect your floor insulation will work effectively and help you save money for years to come. It may be necessary to install a damp proof membrane during your installation which can help prevent issues with moisture.

No. Insulation grants are designed to help the homes and households that really need the benefits of insulation (such as lower heating bills, improved thermal efficiency, and lower carbon emissions), so it isn’t supposed to be paid back. You can enjoy the benefits that underfloor insulation will bring to your home, 100% free, if you qualify for a grant and it covers the full cost of the floor insulation work.