Save Energy in Older UK Homes
Eligibility – This scheme is primarily for older houses. New houses with solid concrete floors do not typically qualify, but older houses with suspended timber floors can be covered under the ECO4 scheme.
Energy savings – Installing underfloor insulation reduces heat loss, lowers monthly energy payments, and enhances general comfort.
How to identify a suspended floor – If your property has a basement, cellar, or features air bricks/ventilation bricks, it likely has a suspended timber floor that loses heat more easily.
Grant funding available – Through ECO4 funding, households that meet energy efficiency and income criteria can get free underfloor insulation installed.
Why Choose Underfloor Insulation?
Selecting underfloor insulation in 2025 is one of the easiest options to save energy, reduce carbon emissions, and have a cosier home without breaking the bank on installation.
How Much Could You Save with Underfloor Insulation?
Underfloor insulation from a professional will set you back between £300 and £1,200, but with UK underfloor insulation grants, you might be able to have it installed free of charge. It could lead to long-term yearly savings on heating bills if you get it installed properly.
How Much You Could Save This Month?
Detached house – Up to £110 annually in savings
Semi-detached house – can save you about £70 a year.
A mid-terraced home – can save about £45 annually.
Detached bungalow – Up to £120 annually in savings
Are You Interested?
Check Your Eligibility To Avail These Grants
Why Apply for a 2025 Underfloor Insulation Grant?
You could be able to get insulation installed for free if you qualify for a UK underfloor insulation grant under the ECO4 program.
Installing high-quality floor insulation in your home will drastically reduce your heating costs.
Reduce heat loss and increase comfort and energy efficiency in your house.
Invest in this beneficial insulation update to raise the value of your house when you decide to sell it.
Create a more sustainable, healthy, and warm home in line with the UK's Energy Efficiency 2025 goals.
UK Building Regulations Regarding UnderFloor Insulation Grants
For safety and energy efficiency, it's critical to adhere to UK building regulations while installing floor insulation.
The U-value, which gauges a material's ability to stop heat loss, is one prerequisite. Floor insulation in England and Wales must to have a U-value of at least 0.25 W/m²K.
Depending on the type of floor, most homes need at least 70mm of high-performance rigid foam or about 150mm of mineral wool to achieve this criteria.
To make sure your insulation is efficient and compliant, always get advice from a certified installer.
Advantages of Applying for Underfloor Insulation Grant
Blanket insulation
Approximately £13–£18/m². Composed of rock or glass minerals, inexpensive, and fitted between joists below floorboards.
Rigid board insulation
Prices between £15–£17/m². Consists of PIR or PUR, is light, and very effective at limiting heat loss.
Spray foam Insulation
Princes between £22–£26/m². Polyurethane foam expands to fit floor cavities and produces great thermal performance.
Multi-foil insulation
Prices between £3–£4/m². Constructed of aluminium foils with foam; cheap but not as efficient as other forms
Insulation screed
Costs between £18–£20/m². A cement-sand-water coating spread on solid floors that is low in insulation and is made level.
ECO4 Scheme Eligibility | Free Boiler Grant UK 2025
You may qualify for the Eco Energy Solution if you receive one of these UK benefits
- Income-Based Jobseeker's Allowance (JSA)
- Income Related Employment & Support Allowance (ESA)
- Income Support (IS)
- Pension Guarantee Credit
- Working Tax Credit (WTC)
- Child Tax Credit (CTC)
- Universal Credit (UC)
- Housing Benefit
- Pension Savings Credit
John Smith
5 Aug 2025
Excellent service from start to finish. The team was professional and the new boiler works perfectly. Highly recommended for anyone looking for quality installation.
Emma Wilson
18 Jul 2025
Great experience with the team. They explained everything clearly and completed the work efficiently. Very satisfied with the results and would use again.
David Turner
11 Aug 2025
The installation was quick and hassle-free. My home feels warmer and my energy bills have already started to drop. Thank you for the fantastic service!
Sarah Patel
05 Sep 2025
I was unsure about applying for the ECO4 scheme, but the team guided me through every step. The new boiler is brilliant and the process was smooth.
Michael Brown
28 Jun 2025
Very professional and friendly staff. The free boiler grant made a real difference for my family. Highly recommend this service to others.
Are You Interested?
Check Your Eligibility To Avail These Grants