Boiling Water Tap Installation Cost
- The average cost of installing a boiling water tap is £400.
- The job will take 1 - 2 hours to complete.
- What different hot water taps cost in 2025.
- Typical installation times and what's involved.
- How to find a local hot water tap fitter on MyJobQuote.

£400
Table of Contents
- How Much to Install a Boiling Water Tap?
- Supply Cost of a Boiling Tap Installation
- Labour Cost of a Boiling Tap Installation & Timescales
- Factors That Impact Boiling Water Tap Installation Costs
- Additional Boiling Water Tap Installation Costs
- What's Involved in a Boiling Water Tap Installation?
- Choosing an Instant Boiling Water Tap
- Benefits of Boiling Water Taps
- Checklist: Hiring a Boiling Tap Installer in the UK
How Much to Install a Boiling Water Tap?
We've all spent an early Monday morning staring at the kettle, waiting impatiently as it gears up to a boil with an empty mug waiting next to it, and as the old saying goes – a watched pot never boils.
Hot water taps, or as they are also known boiling water taps, look pretty much like any other kitchen tap, however, they produce boiling hot water.
Now, you can get a few different types of boiling water taps as some will also produce the standard hot water and cold water you usually have with a kitchen tap, and some simply provide boiling water.
They're incredibly handy to have in your kitchen, not just for hot drinks, but for cooking purposes too, and you can get boiling water taps that have filters on them too for cleaner drinking water.
The cost of installing a boiling water tap can fluctuate depending on a few different factors. Firstly, the layout of the kitchen will affect the installation cost, as you will need a little boiler unit fitted close to the tap, along with holes drilled for the tap to sit in.
Of course, the price will differ depending on the type of tap you purchase. For instance, a 3 in 1 tap with filters costs much more than a simple tap without a filter.
The location you live in will also affect the installation price, with big cities like London naturally attracting higher costs for tradespeople due to the cost of living in those areas.
Are boiling water taps safe to install if you have young kids?
Boiling Water Tap Installation Prices
With such a range of instant hot water taps available, you might be wondering how the installation costs for the different options vary.
Below are some estimated prices for the material and labour costs of boiling water tap installation:
| Type | Duration | Average Cost |
|---|---|---|
| Single Boiling Water Tap | 1-2 Hours | £250-£300 |
| Single Boiling Water Tap with Filter | 1-2 Hours | £350-£400 |
| 3 in 1 Boiling Water Tap | 1-2 Hours | £400-£1000 |
| 3 in 1 Boiling Water Tap with Filter | 1-2 Hours | £400-£1000 |
| 4 in 1 Boiling Water Tap | 1-2 Hours | £500-£1200 |
| 4 in 1 Boiling Water Tap with Filter | 1-2 Hours | £500-£1200 |
Supply Cost of a Boiling Tap Installation
Over the next few sections, we're going to explore the costs involved with installing a boiling water tap, focusing first on the supply costs, then the additional costs and finally, the cost of labour.
A good way to work out your budget for installing a boiling water tap is to consider what type of tap you want. If you just want an additional tap installed alongside your current kitchen tap that dispenses just boiling water, you can pick one up far cheaper than any other type at between £150 and £200.
This tap will simply dispense boiling water on demand. It won't have any additional features, and this is usually the easiest thing to install as it doesn't require the removal and replumbing of your other tap.
Now, these types of taps are available with a water filter on them which will clean the water internally, providing completely filtered boiling water. The health benefits of this are clear, and while you will need to pay for a new filter every few months, they can be bought for around £45, so it's not a dramatic additional cost.
3 in 1 taps are the most common type of boiling water tap found within the home as it makes life easier for a lot of people to have all their water dispensers collated into one tap.
These are a lot more expensive than standalone, single-purpose boiling water taps with prices ranging from £300 to almost £1,000 depending on the brand, material and design you opt for. These taps are also available with a filter to clean the water before you use it.
Lastly, a 4 in 1 tap does everything a 3 in 1 tap does, but with the added feature of a cold drinking water function. These will likely be fitted with a water filter to provide completely chilled and filtered cold water. 4 in 1 taps are slightly more expensive than 3 in 1 taps.
They are less commonly purchased because the difference between cold water and chilled drinking water is pretty hard to detect, although it's a nice touch for those wanting a luxury option.
Buying the supplies yourself gives you a great chance to get your hands on the item before it's time to install so you can see how happy you are with the quality, size and design before it's too late.
Often, single boiling water taps are much smaller than you may think, so some people are surprised when they see them installed. It also gives you a great chance to shop around for a cheap deal if you're working on a tight budget.
Labour Cost of a Boiling Tap Installation & Timescales
Finally, we're going to take a look at the labour costs of installing a boiling water tap. The job doesn't take long at all, and an experienced plumber will be in and out in 1-2 hours.
However, a lot of tradespeople will have a minimum job price to account for time and travel. Usually, this is around £40-£50, but this can fluctuate depending on your whereabouts in the UK you are.
As we mentioned earlier, big cities like London and Manchester attract higher trade costs due to the cost of living in the area, which also means that small towns and villages attract lower costs.
Big cities have dense populations, meaning the demand for tradesmen is high, which is why the costs can be higher without repelling the customer base. In lower populated areas, quite the opposite is true, as there are fewer people to serve.
Bear this in mind when you're factoring in the budget you can set aside for this job and adjust it accordingly. Of course, the best way to get an accurate price is to call plumbers for quotes.
Factors That Impact Boiling Water Tap Installation Costs
In this section, we take a closer look at some of the main factors that will influence the cost of having an instant hot water tap fitted.
- Type of Tap – Standard hot water taps are relatively inexpensive, whereas a 3-in-1 or 4-in-1 boiling water tap will increase the installation cost. This is due to the more complex process required and may involve removing or replacing existing fittings, which will take longer and require additional materials to complete the job.
- Existing Plumbing Set-Up – Modern homes often have a compatible cold water feed, but older or outdated plumbing may need updating or more extensive work to install a boiling water tap.
- Existing Electrical Set-Up – Installing a boiling water tap may require a dedicated socket under the sink and a suitable boiler. Electrical upgrades could increase costs.
- Access – Kitchen layout and space under the counter affect how straightforward the job is. Small or awkward spaces may require extra effort to fit the tap.
- Bundling Jobs Together – Installing a boiling water tap alongside other plumbing jobs can reduce costs, as tradesmen can combine work and minimize labour fees.
Additional Boiling Water Tap Installation Costs
Below we review the additional costs that are commonly associated with the installation of boiling water taps.
- Kitchen Sink Replacement — Average cost to replace a kitchen sinkis around £400 and takes 2–4 hours. Material and size affect cost: stainless steel is slightly cheaper, cast iron and ceramic are higher. Labour is £75–£150, but booking a half-day plumber (approximately £150) lets you combine the sink and boiling water tap installation to save money.
- Kitchen Worktop Replacement — Average cost to replace kitchen worktops is around £600 and takes 1–1.5 days. Material choice matters: laminate, solid wood, stainless steel, and composite are average; quartz, granite, marble, and ceramic can cost up to £3,900. Combining this with boiling water tap installation can reduce labour costs.
- New Kitchen Cost — The cost of a full remodel for a kitchen varies by material, design, and size. Small kitchens start from around £2,000, an average size is between £4,000 and £5,000, while large kitchens can cost up to £25,000. Boiling water taps and other inclusions can be included within the overall project.
What's Involved in a Boiling Water Tap Installation?
There are numerous ways to install a boiling water tap, especially for different types of tap, but we're going to give you a step-by-step guide on how the installation typically looks.
- First of all, turn off main water supply while you work on the installation.
- Prepare the tap housing:
- For a new tap, drill a hole in your sink with a drill and hole saw.
- For a replacement, remove the old tap to provide the necessary space.
- Install the boiler below the tap, and lay or connect any necessary pipework.
- Ensure the boiler has a 13-amp power supply connected.
- Turn the water supply back on, test the tap by checking the water is free-flowing and the correct temperature
- Seal the unit for waterproofing and tidy the area.
Choosing an Instant Boiling Water Tap
Here is a list of the different types of boiling water taps that are available:
Single Boiling Water Tap Cost
This is a tap that has only one function, to dispense boiling water. However, it's not a replacement for your regular hot tap. The temperature of water here usually range from around 75-98 degrees, with the majority reaching the upper end at near-boiling point.
However, some models come with a temperature adjustment on them - for example, coffee drinkers prefer hot water around 75 degrees to avoid burning the coffee, whereas tea drinkers want the water as hot as possible to infuse the water.
Pros
- ✔ Most affordable option.
- ✔ Straightforward to install.
- ✔ Easy to use.
Cons
- ✖ Means you will have two taps on the worktop.
- ✖ May be inconvenient to use two separate taps.
- ✖ Doesn't have any premium features.
3 in 1 Boiling Water Tap Cost
The 3 in 1 version of the boiling water tap does replace your kitchen tap as it provides boiling hot water, standard hot kitchen water and cold water.
Again, you can opt for versions with or without filters to purify the water that you use. These taps tend to be much larger than single taps and mimic kitchen taps much more than single boiling water taps.
Pros
- ✔ Replaces your existing tap with an all-in-one solution.
- ✔ Convenient since all functions are within the same tap.
- ✔ Has a more minimalist appearance with no clutter.
- ✔ Energy efficient hot water solution.
Cons
- ✖ More expensive than a single boiling water tap.
- ✖ Installation can be more complicated.
- ✖ Need to be certain that the model comes with child safety locks.
4 in 1 Boiling Water Tap Cost
A 4 in 1 boiling water tap is pretty much identical to the 3 in 1 option with one key difference. The 4 in 1 tap has the ability to dispense filtered and chilled drinking water.
In all honesty, you'd be hard-pressed to tell the difference between chilled drinking water and simple cold water, but still, some people like to have that option for their kitchen.
Pros
- ✔ Most convenient option serving multiple functions.
- ✔ Saves money on other filtering products you may use.
- ✔ Some models come with premium features such as smart home integrations.
Cons
- ✖ Most expensive option.
- ✖ Filters require regular maintenance.
- ✖ Requires more space under the counter to fit.
Benefits of Boiling Water Taps
Still not made up your mind? Here is a list of benefits of installing a boiling water tap:
- Convenience of Boiling Water – Instead of waiting for a kettle to boil, not to mention limescale build-up and the fact they can deteriorate overtime, boiling water taps provide an instant, clean, and hot water alternative at the touch of a button.
- Energy Savings – Boiling water taps are considerably more energy-efficient than boiling a kettle numerous times a day, consuming around 3p per day on standby, although the exact cost depends on the model and how often it is used. Plus you only heat what you need.
- Cost Savings – On average, boiling 1 litre of water in the UK using a standard kettle can cost approximately 2-3p per use. For the average household this can equal almost £45 a year, compared to roughly £11 when using a boiling water tap.
- Safety Features – Kettles can present electrical risks and cause burns or spillages, especially around children. Boiling water taps are fixed over the sink and include safety features to prevent accidental use by children.
- Eco-Friendly – Boiling water taps reduce energy and create less water waste, making them better for the environment. Plus unlike throwing away an electrical kettle, a water tap can be maintained and repaired if necessary.
- Versatility – Many taps provide multiple functions rather than simply boiling water. Some models can supply hot, cold, and filtered water, offering an all-in-one solution for your kitchen.
Checklist: Hiring a Boiling Tap Installer in the UK
Traditionally, finding a good tradesperson to carry out work on your home relied heavily upon word of mouth to find someone who comes recommended.
However, now we have the internet to find out everything we need to know about companies and traders before hiring them:
- You can use a search engine to find a plumber in your area, and at the same time, find their contact details along with any reviews and work examples either they have uploaded, or previous clients have uploaded on independent sites.
- Always ensure you get quotes from a few different people, check their previous reviews and if you are unsure, ask for some examples of similar jobs they have done recently.


