If you’re planning a new boiler installation in Chichester, Littlehampton, or Bognor Regis, one of the first questions that comes to mind is how long it will take. The answer depends on your current setup, the boiler type you’re switching to, and any upgrades needed along the way. Here’s a clear breakdown of realistic timeframes so you can plan with confidence.
How long does it take to install a boiler?
Most domestic boiler installations in West Sussex take between 1 to 3 days. Some are as quick as a single day, while others require multiple days due to system conversions, relocations, or added extras. Let’s explore the most common scenarios and how they affect the timeline.
Straightforward boiler swap (typically 1 day)
If your existing boiler is being replaced by a new one of the same type (e.g. combi for combi or system for system), the job is usually completed within a single day. This includes removing the old boiler, fitting the new one, making necessary pipe connections, testing, and commissioning.
System conversion (typically 2–3 days)
If you're switching from a system boiler or regular boiler (with a hot water tank) to a modern combi boiler, expect a longer job. The engineer will need to decommission tanks, reroute pipework, and make adjustments to accommodate the combi unit. This often takes 2 full days, and up to 3 days if complications arise.
Boiler relocation (2–3 days)
If you’re moving your boiler to a new location within your home, this adds complexity. New pipework, electrical wiring, and flue installation are usually required. Depending on how far you’re moving it (e.g. from the kitchen to the loft), this can stretch the installation to 2 or 3 days.
Upgrades or extras (add 0.5–1 day)
Additional work such as powerflushing the central heating system, replacing old radiators, installing smart controls or thermostats and fitting a magnetic filter can add between half a day to a full day. It’s worth doing, especially if you want to extend the lifespan of your new boiler and maximise performance.
Keep in mind, your heating engineer in Chichester or Bognor Regis will also carry out system testing, certification, and show you how to use the new controls. This is usually done at the end of the final day.
How to Avoid Delays During Installation
To keep the installation on track, homeowners can help by:
- Ensuring easy access to the boiler and pipework before the engineer arrives
- Making decisions in advance about the boiler location and add-ons
- Choosing a Gas Safe registered installer who offers clear timelines
- Weather can also play a role, especially if external flue or condensate work is required.
Most professional heating engineers will factor this into their schedule and keep you informed if anything changes.
Looking for fast, reliable boiler installation in Chichester, Littlehampton, or Bognor Regis?
Sussex Heating Care provides professional boiler installations, from one-day swaps to full system upgrades. Our Gas Safe engineers keep things on time and hassle-free. Call us on 01243820474 or fill out our contact form and get free advice.
