How long does it take to fit a new boiler?

Question

We're getting our old combi replaced with a new combi in the same location. Should we expect to be without hot water all day or is it usually quicker than that?

Carl · Answer

No this should be completed in the day a combi to combi change is only a 4-8 hr job

James · Answer

If it’s just a standard combi to combi installation, the installation generally takes about 4-6 hours in total 
If you need water have a word with the installer he’ll be able to make provisions to get the cold water back on sooner

Luke · Answer

Typically, a combi boiler swap shouldn’t take more than a day. However, if your existing boiler location doesn’t comply with current regulations, the installer may need to carry out additional work, which could extend the job.

As for water, it’s normal to be without hot water for the duration of the installation. Cold water is usually restored fairly quickly once the new boiler is mounted and connected, but hot water won’t be available until the system has been fully commissioned and tested.

Naieem · Answer

One full day to complete job properly without cutting any corners

Grantley · Answer

No, in theory, you should be able to swap a Boiler and at least get the hot water going the next day

Alex · Answer

It takes two days to replace a boiler correctly, even like for like. This is because the system needs to be thoroughly cleaned. The boiler will not be commissioned and handed over to you until the second day. You may have hot water by the end of the first day. In short, expect jo to water atleast for a full day.

Hassan · Answer

If it's like for like swap, you'll be without hot water for the morning till the afternoon,  by the end of the day or sooner, you'll have hot water back. 
Thanks JJ&S Plumbing and Heating Ltd

Isaac · Answer

One full day is the typical time to carry this work out, with no unforeseen issues.

Joshua · Answer

Usually done within the day. If all goes to plan then you’ll be back to having heating & hot water by the end of the day so yes expect to not have it available for most of the day

Naim · Answer

Yes you will be without hot water between 4 to 6 hours

How long does it take to fit a new boiler?

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