Insulation prices

You are going to have insulation installed because you want a cosy and comfortable home, but still want to pay your energy bills with a smile on your face. You just don’t know yet which solution is best for you and what it will cost. Renoca has therefore listed all the options and prices for you.

What does insulation cost?

On average, you will pay around £5,000 for an insulation project. The type of insulation material affects the price, but even more so the location of the insulation: wall insulation, floor insulation, roof insulation, facade insulation. In addition, don’t forget to check if you are eligible for an insulation subsidy from the government or your municipality. Check the cost overview below for average prices per insulation, including installation.

In order to give a better understanding of the costs, Renoca has explained a few situations:

The cheapest:

You live in a terraced house and would like to save on heating costs, but you don’t see a costly investment. The cheapest option then is to have a cavity wall insulation carried out. Around 40 per cent of people opt for this insulation. A cavity wall insulation will cost you around £1,100.

Most effective:

You would like to make substantial savings on heating costs and you want a more comfortable home. Then choose roof insulation, as it is the most effective way to save and retain heat. This insulation can be installed for as little as £2,300.

The whole package:

If you are having all types of insulation installed in your terraced house, take into account an amount starting from £5,000 or from £10,000. This depends on whether it’s possible to insulate your facade with cavity wall insulation, which is the cheapest option, or whether a more expensive method of facade insulation is required.

Price structure of insulation

The price for insulation is made up of 3 components: the insulation material, machine costs and labour costs. Of these 3, labour costs count the most heavily in most cases. You can save more than you think on this cost item by requesting insulation quotes and comparing the different rates. The share of material costs in the total price varies a lot depending on the insulation technique and the materials used. For example, PUR is an expensive material, but quick to install, and with rock wool it is exactly the other way round.

What choices determine the price?

A number of choices you have to make in connection with insulating your home will affect the final cost.

Choice 1: Place of insulation

The place you have insulation installed has a big influence on the final price. For example, cavity wall insulation is the cheapest, and other ways of facade insulation are more expensive. The difference between these is about £6,000. Roof and floor insulation are also more expensive than cavity wall insulation, but the difference in cost here is considerably smaller, around £1,000.

Choice 2: Type of insulation material

For almost every type of insulation there are several types of material to choose from, compare the insulation materials beforehand. The difference between the materials is often not that big, but it can somewhat affect the final price. Especially when a large area has to be insulated. Per m² can differ by up to £ 20. If the costs do vary widely, bear in mind that more expensive materials are often installed more quickly and you therefore save on labour costs again, so that the final total price does not even have to be higher than with the cheapest insulation material.

Choice 3: Combine with other insulation forms

It is often relatively cheaper to have a specialist carry out several insulation forms at the same time. This is because it allows him to work more effectively, thereby reducing costs. This advantage is usually passed on by the specialist in the price you have to pay. Request quotations for more price information on the advantage of combining projects.

Choice 4: Additional options

In addition to the insulation work, insulation companies often offer other work that can be carried out at the same time:

• Implement ventilation grids (from £15): When you have the house insulated, it is wise to check whether the ventilation is still adequate. As the house stays warmer, the humidity also goes up. This can result in some unpleasant consequences, such as mould and polluted air. You don’t want those moulds and polluted air, of course, and fortunately, for around £15 per ventilation grille, something can be done about it. An additional benefit is that a house with lower humidity has lower heating costs. If you want larger ventilation grilles, you need to factor in an amount from £60 per grille.
• Central heating (£6,000): With an outdated heating system, insulation has much less effect. Besides insulating your home, it is therefore also wise to opt for central heating. For £6,000 you get a complete installation including radiators. Just a new HR boiler will cost around £2,500.
• Solar panels (£4,700): Solar panels are more environmentally friendly than traditional ways of generating energy. You generate green energy with them and significantly reduce your energy bills. For a system with 10 panels and inverter, you will spend around £4,700.