How long does it take to install a new boiler?

When replacing your boiler, it’s natural to wonder how long the process will take, especially if you rely on your heating and hot water every day. The truth is, boiler installation times can vary depending on the type of system you choose and the work involved. For most homes in Bury, Ramsbottom and Rossendale, a standard installation can take between one and three days, but there are a few key factors that determine the exact timeframe.

How long does it take to install a new boiler?

What affects how long your installation takes

Before any work begins, your heating engineer will assess your existing system, gas supply, and pipework. This helps determine how straightforward the installation will be and whether any upgrades or adjustments are needed. The more complex the job, the longer it will take to complete safely and correctly.

For example, if you’re replacing your existing boiler with a new model of the same type, such as a combi-for-combi swap, the job is typically quick. However, if you’re upgrading from an older system or relocating the boiler to a new position, you can expect the process to take longer.

One-day installations – like-for-like replacements

A like-for-like boiler installation in Bury, Ramsbottom or Rossendale can often be completed in a single day. This includes removing the old boiler, fitting the new unit, reconnecting it to your gas and water supplies, and carrying out all necessary safety checks.

Your engineer will also test your new boiler thoroughly and ensure your heating and hot water are running as expected before finishing up. If everything is straightforward and there are no complications, you’ll have a fully working system by the end of the day.

Two-day installations – system upgrades or added controls

If you’re upgrading your heating system, such as moving from an older boiler to a modern combi, the work can take around two days. This is because your engineer may need to remove tanks, adjust existing pipework, and install new thermostats or controls.

While it takes slightly longer, these upgrades can significantly improve your home’s energy efficiency and free up valuable space by removing outdated components.

Three-day installations – complex conversions or relocations

Some projects take up to three days, especially if the boiler is being moved to a different area of your home or if new flue routes are required. This can involve lifting floorboards, running new pipework, and adjusting gas lines to meet safety standards.

Although this type of installation is more involved, it ensures your heating system is properly set up for long-term reliability and performance. Your engineer will also complete a full handover, explaining how to use your new boiler and its controls.

Typical schedule for a boiler installation

To give a clearer picture, here’s what most installations look like:

  • Removal of the old boiler, preparation of the installation area, and fitting of the new boiler unit.
  • Connection of pipework, testing, and setup of new thermostats or controls (if required).
  • Final testing, adjustments, and safety checks to ensure everything runs smoothly.

This timeline can shorten or extend depending on the condition of your current heating system and the accessibility of your boiler location.

Preparing for a smooth installation

You can help speed up the process by clearing the area around your existing boiler, ensuring access to radiators, and providing your engineer with any relevant heating information. 

Once fitted, your engineer will perform all safety checks, register your installation with Gas Safe, and talk you through your new system’s operation.

Reliable boiler installation in Bury, Ramsbottom and Rossendale

Need a professional boiler installation in Bury, Ramsbottom or Rossendale? AB Plumbing & Maintenance offers quick, safe, and efficient installations. Call us today or fill out our contact form to arrange your installation and get your new boiler running without delay.