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Underfloor Insulation

Underfloor insulation helps prevent draughts from stealing heat from your home.

The method of insulation we provide is perfect for homes that have suspended timber floors. Installing underfloor insulation can greatly improve the energy efficiency of your home as well as reduce the amount of money you’re spending on your energy bills.

Floor insulation between your floor joists or within a crawl space can reduce the amount of cold air creeping into your home, keeping you warmer during the winter months.

At Outlook Energy Solutions, we’re expert underfloor insulation installers, helping people all over the UK reduce heating bills instantly.

Find out if you qualify for an underfloor insulation grant.

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Available grants

How does underfloor insulation work?

As a reliable underfloor insulation company, we boast years of experience helping homes all over the UK become more energy-efficient by installing insulation under their existing floor space.

Underfloor insulation works by creating a thermal barrier that traps heat and prevents it from escaping under your floor. This decreases the amount of energy you consume and leads to reduced heating bills.

1
Underfloor insulation material
A survey is performed in your home to determine the best insulation material for your ground floor. This could be mineral wool insulation, rigid foam or insulation boards.
2
Installing underfloor insulation
IOur expert underfloor insulation installers will arrive at your property on the agreed-upon date to conduct the installation process. The underfloor insulation is laid underneath your floorboards to comply with relevant building regulations.
3
Prevents cold draughts
Once we have fit insulation under your floor surface, you’ll soon start to feel the energy savings. Insulation creates a barrier to stop draughts from stealing warm air from your home and improving your overall energy efficiency.

Energy bill savings with underfloor insulation

Here’s how much you can save on your energy bill every year with underfloor insulation, depending on the type of home you live in.

£120

£45

£70

£110

Source

Estimates are based on a gas-heated home with suspended timber floors. Figures are based on fuel prices as of October 2024 (via Energy Saving Trust).

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View grants

What are the benefits of underfloor insulation?

Reduce energy bills
By retaining heat within your home, you’re not forced to use your central heating system as much, which reduces your consumption and your bills. You can see how much money you could save with underfloor insulation depending on the type of property you live in further down this page.
Reduce heat loss
Floor insulation helps to prevent heat produced by your central heating system from escaping the property. Without insulating material under your existing floor, a lot of heat will be lost through the floor as well as allow cold draughts to enter your home. Underfloor insulation helps to trap the heat, keeping your home warmer for longer
Save energy
Without proper underfloor insulation, you could lose a lot of heat with a suspended wooden floor. As a result, you’ll lose too much energy, forcing you to keep your heating on for longer. With underfloor insulation installed, you’ll massively reduce your energy consumption.
Lower carbon footprint
By keeping your heating on longer to heat your home due to heat loss, you’re increasing your carbon footprint. You can contribute to lower carbon emissions by installing mineral wool insulation or high-performance foam insulation under your floor.

Underfloor insulation FAQs:

How much does underfloor insulation cost?

The average cost of installing underfloor insulation in homes in the UK is approximately £6000, but this price can vary depending on the situation.

However, if you qualify for an underfloor insulation grant, you won’t have to pay a penny. The entire cost of the installation would be covered by the UK government’s home energy efficiency funding.Unsure if you qualify for support? Find out by checking out the available grants.

Is my property suitable for underfloor insulation?

Many modern homes are constructed with concrete floors that are insulated by laying insulation materials on top, so these are not eligible for the scheme.

Older properties – possibly with a basement or cellar – are likely to have a suspended wooden floor with floorboards resting over joists. Air bricks and ventilation bricks are other indications that a property may have a suspended floor and would benefit from underfloor insulation.

How long does it take to install insulation under floorboards?

The time it takes to install underfloor insulation can vary depending on the size of the task at hand so there is no set time frame.

The installation can take anywhere from a few hours to two or three days.If you have any more questions for the team at Outlook Energy Solutions, don’t hesitate to contact us. We can discuss your situation and advise on the type of funding you could be eligible to receive.

Funding available with government-backed grants

As part of the UK government’s initiative to cut carbon emissions, grants are available to fund energy-efficient upgrades to homes with low energy ratings.

If you are living on a low-income or receive income-related benefits, you could be eligible to receive full funding for home insulation, air source heating and solar panel energy.

Available grants