Box in Boiler Cost
- The average cost of boxing in a boiler is around £320 in 2025.
- It takes approximately 3 to 6 hours to complete this job.
- A breakdown of what it will typically cost to box in a boiler in the UK.
- What impacts the prices you're quoted by tradespeople for boxing in a boiler, expert tips, and what's involved in this type of job.
- How to find and hire a carpenter near you to box in your boiler.
Want to know how much boxing in a boiler costs in the UK?
The average cost to box in a boiler is between £190 and £430 in 2025.
In this guide, we cover everything you need to know about putting your boiler in a box. This includes typical prices you'll be quoted to hide a boiler in your kitchen, what building regulations you need to know about, and how to box in a boiler.
Whether you want to box in a combi boiler, regular boiler or system boiler, we’ll give you a clear idea as to how you should go about this.
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£320
Table of Contents
- How Much Does It Cost to Box in a Boiler?
- Supply Only Costs
- Labour Costs and Timescales
- What Impacts the Cost of Boxing in a Boiler?
- Additional Box In Boiler Costs
- What's Involved in Boxing in a Boiler?
- Can I Box In a Boiler Myself?
- Building Regulations & Planning Permission for Boxing in a Boiler
- Hiring Professionals to Box in a Boiler
- FAQs
- Sources
How Much Does It Cost to Box in a Boiler?
A modified kitchen cabinet would cost £140 to £240 whereas a custom-built unit would be priced at approximately £240 to £380. Having a utility space built would cost about £360 to £500.
The cost of boxing in a boiler depends on the type and size of the construction, ease of access to the work area, and where you live in the UK. The latter point is relevant since labour prices differ from region to region in the UK (a bit more on this lower down).
The cost of boxing in a boiler will also vary depending on the type of boiler that you have.
How much would it roughly cost for a box to be built round a boiler in a spare room to cover the boiler and pipes?
Box in Boiler Prices
Job Description | Supply Costs | Labour Costs | Total Cost |
---|---|---|---|
Modified Kitchen Cabinet | £60 – £120 | £80 – £120 | £140 – £240 |
Custom-Built Unit | £90 – £180 | £150 – £200 | £240 – £380 |
Build a Utility Space | £210 – £300 | £150 – £200 | £360 – £500 |
Supply Only Costs
The supply costs are a part of the overall costs to box a boiler in and exclude the price of labour.
The cost of supplies would land around £60 to £120 for a modified kitchen cabinet, £90 to £180 for a custom-built unit or £210 to £300 in the case of building a utility space.
Supply Costs of Boxing in a Boiler
Job Description | Supply Costs |
---|---|
Modified Kitchen Cabinet | £60 – £120 |
Custom-Built Unit | £90 – £180 |
Build a Utility Space | £210 – £300 |
Labour Costs and Timescales
We’ll now move on to the price of labour involved in boxing in a boiler.
A tradesperson would set a labour price of about £150 to £200 per day whereas a relatively straightforward installation may cost between £80 and £120 (e.g., modified kitchen cabinet).
The labour cost is part of the overall price of boxing in a boiler.
It would take about three to six hours to install a modified kitchen cabinet but six to eight hours (or around a full workday) to have a custom-built unit or a utility space.
The labour cost and timeframe would depend on the extent of the work and ease of access to the workspace.
What Impacts the Cost of Boxing in a Boiler?
When it comes to boxing in a boiler, various cost factors are at play. While we’ve touched on these earlier, let’s take a closer look at the cost-affecting factors involved.
Type and Size of Construction
One of the main factors in determining the price of boxing in a boiler is the type and size of the construction.
Modifying a kitchen cabinet would be a simpler and relatively cheaper task than saying having a custom-built unit constructed around your boiler.
The size of the construction itself would also play a role in determining the supply costs as well as the labour price potentially (as this often relates directly to how long the work takes or/and the scale of the job).
Ease of Access
The level of accessibility a tradesperson has to your boiler would also matter. The easier they can access the workspace, the quicker and simpler the task should be. This would likely mean a lower labour cost as a result than would be the case otherwise.
Location of Property
In addition, the cost of labour would also depend on your location. Labour prices tend to be below the UK average in northern England, Scotland and Northern Ireland.
On the contrary, trade costs are usually above the UK average in the southeast. London is especially known for its high costs in general.
Additional Box In Boiler Costs
We’ll now look at some extra jobs you may wish to schedule around the same time as getting your boiler boxed in.
These types of jobs are a good idea to think about at the same time, as you'll often be quoted lower prices if you bundle multiple jobs together.
Cost to Service a Boiler
You may wish to have your boiler serviced at the same time as having it boxed in. In general, you should have your boiler serviced annually.
Of course, it’s possible that you could have your boiler serviced earlier than scheduled if you wish. This must be undertaken by a qualified gas safety registered engineer.
Boiler service costs are typically between £55 and £100 in the 2025. It's about £50 to £70 to service a combi boiler, around £60 and £100 for an electric boiler, and an oil boiler service costs between £70 to £90.
An annual boiler service is critical to ensure that your boiler is safe and working correctly. And if you want to maintain your boiler's warranty, then annual servicing is typically something that you should schedule with a heating engineer near you.
A heating engineer may also spot issues when servicing your boiler and would likely fix any issues present there and then — albeit this could increase your bill.
Cost to Bleed a Radiator
Bleeding a radiator involves draining water out gradually. This can lower moisture/condensation levels and enhance the overall performance of the radiator in question.
It would make a radiator more efficient, less noisy, and it would stop a pool of water from forming beneath it when in use (if this is occurring). Bleeding a radiator can also address issues like cold spots, which would likely lower running costs.
The cost of bleeding radiators would will depend on the number of radiators that need to be dealt with.
To have a professional bleed between 5 and 10 radiators, you should expect to be quoted around £80 to £100. For a house with between 10 and 15 radiators, the cost would be between £100 to £150.
Cost to Move a Radiator
Another thing you may be thinking about is having one or multiple radiators moved somewhere else.
The cost to move a radiator is between £120 to £180. If you were looking to move around 3 radiators, this would put the cost at approximately £360 to £540.
And if you're thinking of adding a new radiator, you’d need to increase your budget by about £220 to £400.
What's Involved in Boxing in a Boiler?
In this section, we’ll look at the steps required to box in a boiler. The methods will vary depending on the way in which you want to have your boiler boxed in.
You should explore different box in boiler ideas before deciding the best way to go about it, although you should consult a professional if you have any doubts as to whether your vision is suitable.
Hiring a Contractor and Obtaining the Materials
First and foremost, you need to decide whether you want to undertake the work yourself or hire a professional (more on this in the next section).
If you choose to hire a professional, they could obtain the materials for you. Otherwise, you’d need to get them yourself. It’s important that you secure all the correct materials and have the right tools needed.
Boxing In the Boiler
In most cases, the work will be relatively simple. A kitchen cabinet or the creation of a fresh cupboard is a popular way of achieving this. For a kitchen box in boiler job, a ready-made cabinet would suffice.
This can help to conceal your boiler and make it smoothly fit in with its surroundings.
In some cases, having a cupboard created would suit, though this would depend on location and/or the size of the boiler. The exact process will differ from construction to construction.
For instance, you may need to box in pipes under the boiler or not, depending on the nature of your boiler. If in doubt, you should hire a professional.
Final Checks and Clean Up
Lastly, you’d want to perform any final checks and clean up the space. Once everything is in good, safe and working order and everything is clean, you’re good to go.
Can I Box In a Boiler Myself?
Thankfully, boxing in a boiler is a fairly straightforward job for a DIY enthusiast so long as you have the right skills and knowledge. It’s important to follow the manufacturer’s instructions carefully. For example, there may be some more difficult elements of the job you may need to do like box in boiler pipes.
In terms of safety concerns, spatial ventilation surrounding a boiler space is particularly important. It is critical that enough room exists around the boiler for air circulation.
I have a boiler flue that runs through the kitchen wall, into the adjacent room and out through the external wall in that room. Is it possible (and safe) to box a flue pipe in this sort of situation?
In addition, there needs to be sufficient clearance at the front of the boiler; this would be for maintenance and servicing purposes. If the boiler needs to be moved, however, you will need to hire a professional.
Boxing in a boiler DIY, if suitable, could save you somewhere in the range of £80 to £200 in labour expenses. However, it will likely take a DIY enthusiast longer to perform the work than a professional.
Hazards and dangers include straining yourself when carrying heavy materials. You also want to be sure you don’t do a botched job. You’ll need to know how to box a boiler to do this work DIY. If in any doubt, it’s best to hire a contractor to box in a boiler.
Building Regulations & Planning Permission for Boxing in a Boiler
You may be wondering whether any specific rules must be followed when boxing in a boiler. Of course, as mentioned, you want to ensure room for air circulation around the boiler and that there is sufficient clearance at the front for maintenance and servicing.
However, when it comes to planning permission rules in particular, none apply specifically to this work. In fact, building regulations do not directly cover boxing in a boiler either.
The only real expectation is that if your property is a listed building, you will need permission from your local building authority prior to having your boiler boxed in.
Of course, the manufacturer’s instructions will guide you as to what is required.
In general, you’d be looking at approximately the following gaps in the construction:
- 5cm gap from the box edge to the boiler sides
- 30cm gap at the top of your boiler
- At least 10cm along the bottom of the boiler
Other work, if applicable, may be covered by planning permission or building regulations. Planning permission approval can take up to eight weeks and generally costs about £200, whereas the price of building regulations generally falls close to £100.
Is it possible to have a boiler installed in a bathroom?
Hiring Professionals to Box in a Boiler
Should you wish to hire a contractor to perform the work, there are certain considerations worth taking on board.
Our recommended checklist when finding the right contractor for the job:
- Are they qualified?
- What experience do they have?
- What is their previous work like?
- Source multiple quotes before making up for your mind
- Ask friends and family members for any recommendations they might have
- Check out any online customer reviews they have, such as on their website and social media (if any of this is applicable)
- Find out if they are part of an accreditation
FAQs
Can I box in my boiler?
Does a boxed in boiler need ventilation?
A more modern type of boiler used in the UK are room-sealed, which means they bring in air through an external flue. Older boilers found in the UK are open-flue, which means they bring in air from the room they're situated in.
In either case, it's best to consult with a professional tradesperson who is familiar with ventilation requirements when boxing in a boiler.
How do you box in a wall-mounted boiler?
What are some of the advantages of boxing in a boiler that I may not have realised yet?
Does boxing in a boiler add value to a property?
How much might it cost to unbox a boiler and make it exposed again?
If you want to have your boiler boxing replaced, you should add £60 to £120 to the estimate for the sort of construction you want to have in its place. This would therefore cover the cost of removing the old construction and the price of the new one, to give you a sense of your overall bill.
Sources
https://www.planningportal.co.uk/permission/common-projects/boilers-and-heating/planning-permission