How long does fitting a new boiler take?

Considering investing in a new boiler? One of the main questions you might have is how long it will take to install.

It depends on the complexity of the job and the amount of labour needed, so this article gives examples of various scenarios to help you organise your time and manage expectations.

Like-for-like swap in the same location

Replacing your current system with the same type of boiler is the fastest installation as it requires minimal change. It usually won’t take more than a day to complete.

Moving your boiler

The further away you install your new boiler, the longer the installation is likely to take. The engineer may need to change existing pipework which could add another day to your installation.

System upgrade

Most homeowners will opt for a newer, more efficient type – switching from a regular boiler to a combi boiler for example.

This kind of change can take much longer though, up to 3 days or even more depending on the complexity. However, don’t let this put you off making the switch. Choosing a suitable boiler for your needs can save you money in the long run by cutting down your annual energy bills.

Add-ons and other considerations

• Smart meters and thermostats are becoming increasingly popular, allowing you to control your heating from your phone.
• Getting a system Powerflush can help to ensure your system functions efficiently. The process is highly effective at getting rid of sludge, debris and rust, but can take up to 5 hours.
• If you have an older system, the pipework might not be suitable and will need to be changed. This could take the engineer a good few extra hours.

These reviews are based on the experiences of thousands of real consumers that have been collected and analysed by Which? experts, so you can be confident in our recommendations. https://www.which.co.uk/reviews/boilers