New floor insulation will help improve the sound barriers around your property, not to mention making it warmer for longer – but how much does it cost?

Floor insulation cost

Regular heat loss can cost a lot in wasted energy and increase your utility bills; as heat travels out of the homethrough cracks in floors and walls you’re left whacking up the thermostat in vain, hoping the situation improves – when actually it is all going to make little difference until you have properly insulated your home. Floors are the section of a room home-owners most often forget about, as the cracks and/or gaps that cause rapid heat loss are rarely visible – so what can you do to stop the heat escaping? Well, installing brand new floor insulation is your best bet – but what types are available on the market? And how much do they cost?

To help give you a basic notion of the most popular forms of floor insulation, we’ve sourced prices from the two most popular options that are widely available.

Solid Floor Insulation Cost

Most newer properties will already have solid floor bases constructed directly below a room, especially on the ground floor. These can be fitted with new, “rigid concrete” solid flooring or fixed plasterboard that should help fill any cracks or gaps formed over time and improve the overlay’s insulating properties. This can take a lot of time to install and cause a bit of a fuss, but it is the most fool-proof and effective form of floor insulation available – and won’t need to be refitted for at least ten to twenty years!

According to, solid floor insulation price anywhere between £950 – 2200, depending on the size of your home and the retailer you purchase it from.

Suspended Floor Insulation Cost

Best suited for older properties that have suspended timber floors in which you can access the crawl space, suspended timber floor insulation lets you fill the cracks and gaps around the wooden panelling with mineral wool insulation. The area is easy to access, making it a perfect option for DIY enthusiasts – plus it can even be supported by additional netting, which should help it to last a lot longer than ordinary wool linings.

According to, suspended timber floor insulation costs anywhere between £300 – 750, depending on where you look.

Budgeting for Floor Insulation

When you’re planning your new floor insulation project, you need to be sure you have the money to pay for it well in advance – and that means taking everything about this sort of home improvement into consideration before settling on a final budget, including the following:

  • How large is your property? Do you want the insulation installed in all rooms, or just one floor? Or maybe just a particular area of the home more vulnerable to heat loss and sound pollution?
  • What kind of floor insulation are you looking for? As you can see above, suspended timber flooring is a lot cheaper than solid floor insulation, so the material you choose will always affect the final budget.
  • Finally, are you going to install the floor insulation yourself, or hire a professional, fully qualified building engineer to do it for you? If you don’t have the necessary experience, it is always recommended that you go for the latter – that way you prevent any further mistakes or costly repairs later down the line. Just make sure your chosen contractor is fully accredited with the National Insulation Association before you sign any kind of contract.

While you can split floor insulation cost according to the type of insulation you want installed on your property, at they list a number of different 100 x 1200 x 24000 mm insulation boards at anywhere between £19.54 – £61.09 – so even if you don’t plan on fitting them by yourself, you can still find insulation materials cheaper than you think!

Alternatively, you can also opt for more conventional forms of floor insulation, including laying brand new carpets or rugs. It may not be as effective on a long-term basis, but Floor Insulation cost will reduce a lot – in both time and money!

*All prices sourced from respective websites. 

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