The short answer
Most new boiler installations are done in a day. A straightforward like-for-like combi swap can be finished in half a day. Changing the type of system, for example from an old regular boiler with a loft tank to a combi, or fitting a system boiler with a new cylinder, can take two days. We give you the timescale at the survey, so you know before you book whether you'll be without hot water overnight.
Typical timings
| Job | Typical time on site |
|---|---|
| Combi replaced with a combi, boiler in the same place | Half a day to one day |
| Combi moved to a new position | One day, sometimes longer |
| Regular boiler with loft tank converted to a combi | One to two days |
| New system boiler with an unvented cylinder | Up to two days |
What happens on installation day
The engineers arrive, protect the floors and work area, and drain the system. The old boiler comes off the wall, and any pipework or flue changes are made. Then the new boiler goes up, gets connected, and the system is refilled.
Every new boiler we fit includes a power flush of the heating system, because Worcester Bosch requires a clean system for the guarantee to stand. That's part of why the job takes most of a day. A new boiler on a dirty system clogs up and loses efficiency within a year or two.
Finally the boiler is commissioned and tested. We show you how the controls and any smart thermostat work, and register the boiler for its manufacturer's guarantee.
Why some installs take longer
Three things add time. Moving the boiler to a different room means new gas, water and condensate pipework. Converting from a regular system means taking out the loft tank and cylinder and capping old pipes. And a new flue route, in a Tyneside flat, a conservation area or a property with tricky access, needs care to get right.
None of that should come as a surprise on the day. The survey is where we find it, and the quote and timescale reflect it.
How soon can it be fitted?
From your first click to a working boiler, the steps for a new boiler installation in Newcastle are: book a free survey online, get a fixed quote, place your order, and we book the installation. When we have availability, that can be the same week. In the depths of winter, when a lot of old boilers fail, slots go faster, so it pays to get the survey done before yours breaks.
After the install
Your new boiler is covered by its manufacturer's guarantee, from 5 years on our entry Greenstar 1000 to up to 12 years on top-range Worcester Bosch models fitted by an accredited installer like us, provided you keep the annual service going. Our own installation work carries a 12-month workmanship guarantee on top. Book the first annual service for about 12 months after fitting.
For prices, see how much a new boiler costs in Newcastle, and if you're still choosing, read combi or system boiler?
Frequently asked questions
How long does a combi boiler swap take?
Half a day to a day if the new boiler goes in the same place as the old one.
Will I have heating and hot water overnight?
On a one-day install, yes. On a two-day system change, you may be without for one night. We tell you at the survey.
Do I need to be home during the installation?
Someone needs to let the engineers in and be there at the end, so we can show you the controls and hand over the paperwork.
Is a power flush included?
Yes, with every new boiler we fit. Worcester Bosch requires a clean system for the guarantee.