How much will I save?
There are many different figures quoted for how much money insulation will save you. The answer is - it depends on a number of different factors, such as how much insulation you currently have, the temperature difference between the outside and the inside of your property and the type of fuel you use to heat or cool your property.
In the UK insulation is mainly installed to reduce heating bills, but remember that it also stops heat getting in, keeping your house cooler in summer. So, it may help save on electricity for fans and air-conditioning too.
As a general rule - if you currently have no insulation in your loft at all, installing it will pay for itself in a year.
In the average house, insulating both cavity walls and your loft will save around £200 every year in heating costs.1
Those are savings you'll make every year. That makes insulation one of the few guaranteed investments that will keep saving you money day in day out - year in year out.
And, unlike a boiler or double-glazing, insulation requires no maintenance or replacement. It works as good as the day it was installed. What’s more, it also contributes to the energy rating of your house. So, if you have proper insulation you will get a higher rating and that could make your house more attractive to buyers than a similar one without insulation.
1The costs and paybacks shown are approximate, are provided for illustrative purposes only and based on a gas heated semi-detached house with 3 bedrooms. Installed Costs and paybacks assume that installation is undertaken by a professional installer and are un-subsidised. However, please note that grants and offers are available from local authorities and energy suppliers which can reduce the cost and payback times substantially. Savings assume a gas price of 2.51p/kWh. Some of the savings made may be taken in increased comfort. Source: Energy Saving Trust 2007
