Boiling water tap installation in London
Fitting a boiling water tap is a simple enough job, but two things rarely make it onto the brochure before people buy one: there has to be a power socket under the sink, and the storage tank eats into cupboard space you were probably already using for something else. Neither is a real problem provided you know about it before the kitchen goes in, which is where Ninja Plumbers comes in early. We fit new taps, swap out old ones, and keep servicing whatever is already installed.
- Gas Safe registered and fully insured
- DBS-checked engineers
- Emergency callout available 24/7
- Price agreed before work starts
- Workmanship guaranteed
Monday – Sunday, 7:00 AM – 10:00 PM · Out-of-hours emergency? Call 020 3576 5825
Get a price for boiling water taps
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What's included
- Boiling water tap installation, most makes
- Tank siting and cupboard planning under the sink
- Isolation valves so the tap can be serviced without draining the house
- Filter fitting and scheduled cartridge changes
- Replacing an existing boiling tap, or reverting to a standard mixer
- Combined boiling, filtered and chilled units
Worth knowing first
A bit of this might save you from needing a callout at all — we'd rather you knew it upfront.
You will need a socket under the sink
The tank is electric and needs a switched fused spur or socket in the cupboard. If there is not one there, our electricians can fit one on the same job, so mention it when you book.
The tank takes real cupboard space
It is roughly the size of a small bin and it needs air around it. In a small kitchen that is often the space the bin was in. Worth deciding where everything goes before the tap is bought.
Filters are a running cost, not an optional extra
Because London's water is hard, the filter cartridge is doing the real work of keeping scale out of the tank. Letting cartridge changes slide is by far the most common reason these units fail early, and a replacement tank ends up costing more than years' worth of the filters that would have prevented it.
They are safe with children, with a caveat
Every make has a child-resistant action on the boiling side. It is a deliberate two-step movement rather than a lock, so it is worth showing children how it works rather than assuming they will never reach it.
Common questions
Do I need an electrician as well?
Only if there is not already a socket or fused spur under the sink. Where one exists, we connect straight to it. Where it does not, our electricians can add one on the same job, and it is included in the price you agree before any work starts. You do not need to book a separate trade.
How much space does the tank need?
Allow for a unit around the size of a small kitchen bin plus clearance for airflow and for the filter to be changed. Exact figures vary by make, so send us the model and we will check it.
Can you service a tap I already have?
Yes. Filter changes, descaling and valve faults are all routine, whichever make it is and whoever fitted it.
Are they expensive to run?
They use standby electricity to keep the tank hot, offset against not boiling a full kettle for one cup. The bigger running cost is the filter cartridges, and those are unavoidable in hard water.
Part of our kitchen & laundry work
If it turns out to be a repair job rather than a new install, this is where that's covered.
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General Plumbing
Taps, toilets, radiators and pipework. The jobs that never quite get done.
More on General Plumbing -
Bathroom Installation
A single fixture swap through to a full strip-out and refit, priced up front.
More on Bathroom Installation
Other appliance work
Need boiling water taps in London?
Let us know what’s going on and whereabouts you are, and we’ll give you a price before any work starts.