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How much does loft insulation cost in 2024?

The prices in this guide are accurate, as of 2024*

Illustration of a loft with different types of loft insulation costs labelled on it
Average cost to install loft insulation

Properly insulating your loft can make your home more energy efficient, helping you cut your heating bills. Insulation pays you back in the long run and is relatively cheap to install. It’s no surprise that adding insulation is one of the most popular eco home improvements, as it can also add value to your home

If you’re trying to save money (and keep your house as warm as possible) then the right insulation can do both these things. If you’re converting your loft, or building an extension, then proper loft insulation is also a building regulation.  

On average, your loft insulation could cost you between £920 and £2,320, depending on how big your loft is. For a more accurate quote on how much you might spend on loft insulation, find a local insulation specialist.

This guide covers a range of loft insulation methods for several different properties, as well as other considerations you might want to make. There are also some useful tips if you want to DIY your loft insulation. 

The standard thickness recommended by the government for loft insulation is 270mm. Cost of labour also rises in London and the South East. The prices in this guide include the cost of materials and installation. They also include VAT.

Picture of a loft with insulation

Conclusions

A properly insulated loft can considerably reduce your energy bills, helping to make your home more eco-friendly by lowering your carbon footprint as well. 

How much you end up spending will depend on the type of insulation you decide to get, and where you live in the UK, as cost of labour rises in London and the South East. The size of your loft will also impact on costs.

To get a more accurate sense of how much you could pay for loft insulation, we recommend you ask for multiple quotes before you settle on a price. You can hire a skilled insulator here.

FIND A LOFT INSULATION SPECIALIST

*The Rated People cost guides are produced in collaboration with the quote-building platform PriceBuilder, and a range of tradespeople across the 30+ trades on our platform were consulted. Please note that the prices included are for guidance only – how much you end up spending will depend on the specific requirements of your project.

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