Easy to install insulation and prevents heat from escaping through the roof.
Fills the gaps between wall cavities to help to help keep your home warmer
Insulation in your converted roof space creates a blanket effect to trap heat within the home
Can be installed in properties that have a suspended floor or a cavity underneath
Provides an option for properties that do not have any wall cavities by adding insulation to internal walls
A useful option for solid walled properties unable to benefit from cavity wall insulation
At Switchable, our goal is to provide you with reliable insulation advice and connect you with a trusted insulation company that can help you make your home more energy efficient so you can start to enjoy bill savings and reduce your carbon footprint.
As a one-stop shop, we can advise you on everything to do with home insulation, whether you are looking to have insulation added for the first time or to upgrade your existing insulation. We can even put you in touch with insulation contractors who can help you when you need to have existing insulation that has failed.
Based on the information you provide, we connect you with a trusted local insulation installer who will be able to advise you on the insulation options suitable for your home and then provide you with a no-obligation quote.
With energy prices at unprecedented highs, there has never been a better time to properly insulate your home. Insulation can bring instant benefits including bill savings and improved comfort. The investment you make in energy efficiency measures like insulation can very quickly be covered by the savings you generate, often within the first few years.
Aside from helping households save money, an adequately insulated home will prevent heat loss, reduce your demand for fossil fuels, and therefore reduce your carbon footprint. Good insulation results in a warmer home, less energy consumption, a more environmentally friendly household.
How much money insulation will save you on your heating bills isn’t to predict as every household and property is different and energy use and prices can fluctuate. Nonetheless, we can try and give you an indication of how much you could save by insulating your home based on figures from the Energy Saving Trust.
Example annual energy bills savings after insulating your home with one of the different types of home insulation
| Insulation type | Detached house | Semi-detached house | Mid-terrace house | Detached Bungalow |
| Loft insulation | £415 | £250 | £225 | £410 |
| Cavity wall insulation | £455 | £265 | £155 | £200 |
| Solid wall insulation | £620 | £360 | £210 | £270 |
| Underfloor insulation | £125 | £75 | £50 | £135 |
Source: Energy Saving Trust based on October 2023 fuel price figures. Savings will vary according to your location and previous level of insulation.
The cost of insulation varies, but it is an investment that in most cases will very quickly be paid off by the bill savings you generate. The cost depends on a number of factors including the type of insulation installed, the size of the area being insulated, plus any other factors, such as ease of access that can affect the installation cost.
The most commonly installed insulation is loft insulation and cavity wall insulation and the typical installation costs (as suggested by the Energy Saving Trust) are as follows:
The most commonly installed insulation is loft insulation and cavity wall insulation and the typical installation costs (as suggested by the Energy Saving Trust) are as follows:
| Insulation type | Detached house | Semi-detached house | Mid-terrace house | Detached Bungalow |
| Loft insulation | £1,200 | £930 | £880 | £1,200 |
| Cavity wall insulation | £4,600 | £2,700 | £1,500 | £2,100 |
Other types of insulation require far more consideration of the specifics of your property, but any quote you receive from an insulation installer will fully take all the factors into account, meaning you will receive an accurate quote and there will be no hidden surprises when it comes to installing your energy efficiency measures.
Switchable partners with hundreds of fully approved insulation installers throughout the UK. We only work with the best in your area.
Insulation is one of the easiest ways to save on your bills, and as a bare minimum, you should install loft insulation (presuming you have a loft space). How much loft insulation will save you will be significant, after all, an estimated 25% of heat loss in the home is through an uninsulated loft or roof space.
What is often overlooked is the impact uninsulated walls and floors can have on heat loss and energy efficiency in the home. Walls can account for as much as 35% of heat loss and almost 15% can be lost through the floor. Addressing all these issues can bring you significant savings as well as improve the comfort of your home.
A loft insulation installation could pay back within 1-2 years of your investment, whereas solid wall insulation could take around 11 years before the savings you have made will eventually cover the cost of your insulation. With insulation usually lasting at least 40 years, you could enjoy savings from installing insulation for many years beyond the initial payback.
Taking action now and finding an insulation installer who can help improve your home’s energy efficiency will help you reduce your bills immediately and also protect you from any future energy price hikes. If you make use of the full range of insulation options available, including loft, wall and floor insulation, your initial outlay will be large but the long-term savings will be significantly greater.
Insulation in the home plays a significant role in slowing the transfer of heat from inside to outside. It does this by trapping the heat that’s in the home using the pockets of air within the insulating material. The hot air trapped in the insulation prevents any more heat from escaping, helping keep your home warmer and having an impact on your heating bills.
Nearly every home will benefit from having insulation of some sort, but not every type of insulation is suitable for every property. For example, solid wall properties (usually those built before 1930) will require different types of insulation, such as internal or external wall insulation, as they don’t have cavity walls.
Loft insulation is a great option for the majority of properties with loft insulation cost usually being the lowest as it is the easiest and most cost-effective to install. Insulating the loft floor will bring savings that make it a no-brainer in most instances. Even if your property already has its loft insulated, it is possible it may need the insulation to be replaced or boosted to the recommended level of 270mm to limit how much heat is able to escape and save money.
Absolutely. The addition of insulation will improve the Energy Performance Certificate (EPC) rating of your home which shows how much your home costs to heat. A good EPC rating will add value to your property so it’s a win if you come to sell your home at some point in future
Insulation is highly beneficial to the environment and in contributing to the overall government aims of reducing carbon emissions from UK households. Here’s how many kilograms of CO2 emissions you could save each year (kgCO2/year) based on some of the different types of insulation:
| Insulation type | Detached house | Semi-detached house | Mid-terrace house | Detached Bungalow |
| Loft insulation | 1,000 | 620 | 550 | 1,000 |
| Cavity wall insulation | 1,100 | 650 | 380 | 485 |
| Solid wall insulation | 1,500 | 880 | 520 | 660 |
| Underfloor insulation | 310 | 185 | 120 | 330 |
Source:Energy Saving Trust
Properly installed insulation should provide many decades of services, providing you with saving for many years to come. Loft insulation is expected to last around 40 years, while other types of insulation products, such as spray foam, can last considerably longer. The longevity of your insulation will depend on a number of factors including the quality of the installation, any issues with leaks of moisture, and the presence of pests that could damage the insulation.
While it is possible to install some insulation yourself, such as loft insulation, you need to ensure that you don’t have any issues with dampness. In most cases, we’d recommend you call in the expert to ensure that your insulation is installed correctly and will provide you with many years of good service. This is particularly important when there are issues with dampness or a more complex insulation system is needed.
All our partner installers are British Board of Agrémen approved. BBA approval provides you with the reassurance that your insulation is installed to the highest standards. BBA is the UK’s leading certification body for construction and provides a range of certifications, including those relating to the insulation industry. All installations are back with generous warranties.
