Need an Estimate?
Get a Price

Cost Of Installing New Radiators

A guide of the process for hiring a tradesman to install new radiators in your home, including the costs of labour and any materials.

2 Days
Avg price:


This article will detail the process of fitting a new radiator system to an entire house and will look at the process, the pitfalls, and any points of interest while doing it. It will also present a few frequently asked questions regarding the fitting and commissioning process.

Fitting an entire central heating system is both a costly and complex job, and you will need to have extensive knowledge of heating systems to be able to achieve it successfully. While it is possible to install the whole system on your own, it is recommended to have it done by a professional installer due to the complex nature of central heating.

Costs involved with installing new radiators

This will very much depend upon whether you intend to carry out the work yourself or have it done by a professional plumber. If you do it yourself, there is really only the cost of parts, with a radiator costing between £60 and £170 depending upon the size. This will be multiplied by the number of radiators you actually need.

If you intend to have a professional fit them, then there is an hourly rate too, which could see the cost of each radiator rise to between £120 and £300. There will also be ancillary costs for copper pipes to join each radiator. The typical home has between 8-12 radiators.

What installing new radiators entails

Fitting a new radiator system will require the draining of the system, removal of the old radiators, assessment and cleaning of the pipework between them. It will then require the fitting of the new radiators in the same basic positions as the old ones, reconnecting the system and bleeding it to remove any air from the system. These steps, while following a logical series, are fairly specialized and many DIY enthusiasts may not want to tackle them. Furthermore, if any work is needed that interferes with the boiler system, this will have to be carried out by a CORGI-accredited engineer and signed off when complete.

Since this is a complex job, it will require a number of tools to be able to complete it. These will include:

  • An adjustable spanner, or set of spanners.
  • Screwdrivers
  • Spirit level
  • Radiator key
  • Tape measure
  • Pipe cutter
  • Bucket
  • Stiff brush
  • Pipe tape
  • Dust sheets

This list may not be exhaustive and other tools may also be required.

Other jobs to tackle

If you are removing your radiators to replace them, you may find that the walls and skirting boards behind them have not been decorated to a good standard since it is difficult to decorate successfully with them in place and many homeowners are reluctant to remove them simply to decorate. If you are intending to install them in new areas, make sure that the wall and skirting boards are in good condition first, to prevent any issues later.

General advice when installing new radiators

Fitting all new radiators in your home is a large and complex task, and one that needs proper planning to ensure that the work is done well and remains free from trouble. If you are replacing, you will need to ensure that the system is cool and bleed it fully to remove all of the water before commencing the work. Make sure that you undo all connecting pipes before trying to remove the radiator from the wall.

If you are fitting radiators in new places or for the first time, position the radiators first so that you know how much piping you will need to connect them. Once they are in their final positions, you will be able to determine how much piping is needed to connect them – allowing for expansion of the system – and cut them to lengths accordingly. You will need to decide whether the piping is going to go under the floorboards throughout or some of it will follow the lines of the walls at skirting board level. If you decide on fully underfloor, it will cost more and will generally take longer to fit, but will look a much more professional job.

Who can install new radiators?

Anyone with the skills can install new radiators but the central heating system will need to connect to the boiler and existing systems such as header tanks, and this means that it will need connecting and checking by a certified professional. Any work that involves the boiler must be completed by a CORGI registered fitter. Once the whole system is in place, it will need filling with water – together with an appropriate corrosion inhibitor - and bleeding to remove any air from the system. This again, is best carried out by a professional.

sam jones profile

Sam J

We have hundreds of homeowners each day checking the prices on YourJobCost before hiring a tradesperson. That way they've already got a good idea of how much they should be quoted.

Ready to Get a Quote?

If you're ready to get some prices for your job, complete our form and compare trusted trades near you!

Get a Free Estimate