Do I have to move my boiler?

boiler-Installation London
boiler installer London

Why would you move your boiler?

There are three primary factors to consider: space, comfort, and aesthetics.

In numerous instances, our customers desire to create more space within their homes while also seeking an attractive kitchen. It is widely acknowledged that boilers are not typically regarded as visually appealing, except for modern boilers such as the Worcester 8000 which boasts an appealing design.

Perhaps you are contemplating a kitchen redesign, but the boiler obstructs your plans. Alternatively, you may wish to free up some space in your loft.

Regardless of the circumstances, it is crucial to engage the services of a dependable and gas-safe registered company like MML Plumbing Ltd to relocate your boiler.

Get a free quote for moving your boiler

From £200

Are you considering the cost of moving your boiler to a different location? We’re here to help! Take the first step towards a seamless transition by requesting a free quote from our professional gas engineers. Our experienced engineers will assess your requirements and provide you with an accurate estimate designed to your specific needs. Don’t hesitate, to contact us today to receive your complimentary quote and start planning your boiler relocation with confidence.

Fixed online quotes, next-day installations

Relocating your boiler to a different floor

Moving your boiler to a different floor to a new location can cost you up to £650* extra plus materials.  You have to bear in mind, that some floorboards need to be cut for the the pipes. The best time to carry out this job is when you are planning to renovate your house.

Also, if the gas pipe size is incorrect then the pipe size needs to be increased to 22mm at least. This is a simple job but time-consuming. A few other things need to be changed too, like the radiator pipe, heating controls and wiring relocation.

Relocating a new boiler to a different room

This boiler cost is the best option that you can pick. When you install a boiler in a new location, this will cost you just an extra £340.

In our opinion, it’s best to update and buy a new high-efficiency boiler which will save you a lot of money on your energy bills in the long run. Also, you will have 5-10 years of free parts and a labour warranty.

The cost of a brand-new boiler installation can vary from £1400-£2550. It all depends on what boiler brand you choose and where the new boiler is located.

Other factors that impact the cost of boiler relocation

You have to consider that the flue needs to be replaced every time.

Also, if you move your boiler it is a good idea to change the thermostat for a better and smarter one, put a magnetic filter if it is not and change the radiator thermostatic valves.

You also have to think about the pipework. Can the pipes be run underneath the floorboard or near the wall? It might need some floorboard to be lifted and walls to be drilled which we can help you with.

If you have a concrete floor the pipes need to be fitted near the skirting.

The further you want to move your own boiler costs more and the more complex the work the more expensive it will be.

  • Every boiler has its maximum flue length meaning the boiler can not be put anywhere. Also, the flue needs clearance from windows and doors.
  • If you move your boiler further away from the bathroom or kitchen, it takes longer for the hot water to reach your tap and showers.

You also have to consider some extra parts to change or upgrade:

  • Boiler flue: £60 – £115
  • Flue pipe extension and bends: £30-60per metre
  • Magnetic filter: £80 – £160
  • Heating Controls: £65 – £300
  • Pipework & fittings: £100 – £500

Do you want to relocate or install a new boiler? Contact us today at 020 8355 0840 so we can help with your planning and we also can put together an affordable price for the boiler installation.

Where should a boiler be positioned?

Below you can see the different locations where a mid-range combi boiler can be installed. Installing combi boilers to any of these locations is straightforward. But there is more restriction when it comes to the regular or system boiler.

System boilers are working together with a hot water storage tank so you need more location.

For the regular boiler, you also have cold water and the feed & the feed and expansion tank in the loft. These components can’t be moved anywhere. But you can upgrade your conventional central heating system to a modern one which will save you a lot of money on your energy bills.

Here are the locations where the boiler can be installed or moved

Airing cupboard

Usually, we put the hot water storage tank in the airing cupboard. This is the best place for a 150-litre cylinder. But if you want to convert your heating system, then you don’t need the hot water cylinder anymore. 


Certain regulations need to be met for the installation or relocation. First, the gas boiler needs to be room-sealed and installed in a sealed cupboard.


Only room-sealed boilers are allowed to be installed in the bedroom. This means the boiler will take the air from outside and expel the fumes outside.

We know that regulations are allowed, but in our opinion, any new boiler can be faulty and carbon monoxide can leak out. So we advise putting the boiler somewhere else and sleeping safely.

Also, you can use a carbon monoxide detector or alarm just for extra protection.

Just we mention, that you breathe out carbon dioxide. This is not harmful, but if you do not open the windows regularly in the room you can have a headache.

Relocation to the garage

  • This is a good place to move a boiler. The only thing we have to take care of is to insulate all the pipework and install frost protection. You don’t have to worry about anything else.


In most UK homes the kitchen is the first place when they fit combi boilers. Is not only safer but also fast to carry out the installation. You can also hide the boiler with a kitchen unit.

Utility room

If you plan a new installation during a home renovation, this can be the best place to fit a boiler. It is easy for future maintenance and you can have extra space in your home.

To summarise:

By law, you can relocate the boiler to these locations, but we recommend the kitchen, loft, utility room, garage or airing cupboard. Before you go ahead with your plan think about safety, practicality and future maintenance. The faster the gas engineer will finish the repair in the future, the cheaper it will be.

Think about where are the waste pipes located. The boiler condensate pipe needs to be connected to the waste pipe. If this is not possible, it can also be installed outside with proper insulation.

What boiler should I choose?

Installation from £1,440

  • In almost every case our customers want to buy a combi boiler. But before you go ahead with your plan, here are a few things to consider:
  • The combi boiler can supply only one bathroom at the same time. If you have three bathrooms a combi is not the perfect choice.
  • If you have a heat-only boiler that is working with a low pressure of around 0.75 bar, you can end up with some leaks if the pipework is not in good condition. The combi is working with 1.2 bar pressure at least. We always carry out a pressure test to check your pipework conditions avoiding future issues.
  • If you have a system or heat-only boiler (both can supply multiple bathrooms at the same time) just replace it with a modern and energy-efficient one.

If you are serious about your plan and want to go ahead with the boiler relocation, contact us today at 020 8355 0840.

We can guarantee we will match your budget. We help you to put together an installation package which not only affordable but also highly energy efficient with 5-12 years of parts and labour warranty.

Looking to relocate your boiler? Fixed online quotes, next-day installations

Contact us to get your prices

Frequently asked questions

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