How long does it take to install a boiler?

The installation of your new boiler could take anything from a few hours to a few days depending on the complexity of the job your engineer needs to carry out. Different systems have different installation times as well as this the quality of your old system will also affect installation time. 

Installing a new combi boiler

If you already have a combi boiler and are replacing your system because it’s broken or to update to a more modern version, this would be a like for like swap. This would usually be a day’s work for an engineer and would usually take 4-6 hours providing the installation of the new system runs smoothly. 

Upgrading to a combi boiler from a system boiler

A system boiler will have an external water tank, meaning the removal of your old system will automatically take longer. If you are replacing your current boiler, some new pipework will also need to be carried out and directed to your new combi boiler. This may result in the lifting of floorboards to get to your pipe systems. As this swap will take a lot of work, this will usually take an engineer 2 days to complete. 

Relocating your boiler 

If the current location of your boiler is inconvenient, for example if it’s located in a bedroom where it can be heard, then you can opt to relocate your boiler. However, you need to consider that this will add an extra day or two to the installation process. The further the boiler is being moved from its original location will add complications to the process. Property size and style can also have an effect on your installation times. 

Common problems that lengthen boiler installation

Power and chemical flushing 

Power flushing will remove any build up of unwanted debris that has emerged in your old system over time. This will prevent your radiators becoming cold at the bottom and not heating your home efficiently. Although this step is highly recommended by engineers, if you’re looking to cut costs this can be avoided. If you are adding a power flush to your installation process, you should allow an extra two to four hours for this. 

Installation of accessories 

If you have purchased any accessories with your boiler such as a filter or temperature gauge then you will obviously need to allow time for these to be installed. For example a magnetic filter system would usually take two to four hours to install. Depending on how many accessories you are receiving with your new system, will affect how much time you need to allocate for installation. 

Not meeting safety measures

When installing your system, your engineer may come across some factors which prevent your system from meeting gas safety regulations. A common cause of this is system pipes not being the correct thickness. This is especially common with systems that are over 15 years old. If this happens with your system, your engineer will need to install all new pipes, evidently adding time to the installation process. This can usually be up to two days. 

Installation of smart thermostat 

Due to their efficiency in promoting energy savings, smart thermostats are increasing in popularity amongst UK households. For these reasons, thermostat installation is highly recommended by engineers. This doesn’t add much time to your installation process either, with installation usually taking engineers up to two hours maximum. 
If you’re worried about getting a new boiler installed due to how long it will take, or any other reason feel free to contact us.

How long does it take to install a boiler

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