Moving an existing boiler typically costs around £600–£1,000, with an average cost of approximately £800. A relatively straightforward move may fall towards the lower end of that range, while relocating a boiler to another floor or somewhere that requires extensive changes to the pipework can cost £1,000 or more.
The cost isn’t simply for taking the boiler off one wall and putting it on another. Depending on the new location, an engineer may need to reroute gas and heating pipes, change the flue, install new condensate drainage and alter electrical connections. If your existing boiler is already getting old, it may therefore be worth comparing the cost of moving it with replacing and relocating it at the same time.
How much does moving a boiler cost?
Current estimates put the typical cost of moving an existing boiler at £600–£1,000, although complicated relocations can cost more.
Here are some indicative costs:
| Work | Indicative cost |
| Move an existing boiler | £600–£1,000 |
| Average boiler relocation | ~£800 |
| Move boiler from upstairs to downstairs | ~£1,000 |
| New pipework and fittings | £400–£600 |
| Reroute gas pipe | £45–£85 per metre |
| Flue extension | £75–£125 per metre |
| Replace and relocate a mid-range combi boiler | ~£2,650 |
These figures shouldn’t simply be added together. A boiler relocation quote may already include some or all of the required pipework and fittings. Ask for an itemised quote if you want to know exactly what’s included.
Prices also vary according to where you live, the boiler and heating system, and the complexity of the work.
How much does it cost to move a boiler within the same room?
Moving a boiler a short distance within the same room will generally be one of the less expensive types of relocation.
For example, you might want to move a boiler from one kitchen wall to another when redesigning the room. If the new position allows the installer to reuse much of the existing pipework and requires only limited changes to the flue and condensate drain, the job may fall towards the lower end of the £600–£1,000 range.
However, being in the same room doesn’t automatically make the move simple.
Moving a boiler from one external wall to another could require a completely different flue position. The gas, heating and water pipes may also need extending beneath floors or behind kitchen units.
The engineer needs to inspect both locations before determining how much work is actually involved.
How much does it cost to move a boiler to another room?
Moving a boiler into another room is likely to cost more if it requires longer pipe runs or significant alterations to the existing system.
For example, moving a boiler from a kitchen into an adjacent utility room could be relatively straightforward if the two positions are close together. Moving it from the kitchen to a distant garage or loft is likely to involve considerably more work.
The cost increases because the engineer may need to extend or reroute several connections rather than just the gas pipe.
A combi boiler, for example, can require connections for the gas supply, central-heating flow and return, cold-water supply, hot-water outlet and condensate drainage, as well as electricity and a suitable flue.
The farther these connections need to travel, the more labour and materials the job is likely to require.
How much does it cost to move a boiler upstairs or downstairs?
Moving a boiler between floors is generally more complicated than moving it a short distance.
The cost for moving a boiler from upstairs to downstairs is approximately £1,000.
The actual price can be higher depending on the property. Floors may need to be lifted to install new pipework, while walls and ceilings could need alterations to reach the new position.
A move into a loft can introduce additional considerations such as access, boarding, lighting and frost protection. Moving a boiler into a garage can similarly require longer pipe runs and protection against low temperatures.
The suitability of the proposed location should therefore be established before assuming that the boiler can simply be moved there.
What affects the cost of moving a boiler?
The biggest factor is usually how much of the installation has to change.
Distance between the old and new locations
A short move generally requires less pipework and labour. Moving the boiler to the opposite side of the house or another floor can require considerably longer connections.
Gas pipework
The gas supply needs to reach the new boiler position and be appropriately sized for the appliance and installation.
Checkatrade currently estimates £45–£85 per metre for rerouting gas pipework.
This work must be carried out by an appropriately qualified Gas Safe registered engineer.
Heating and water pipes
Central-heating pipes need to be extended to the new position. A combi boiler also has connections for the domestic hot-water system.
The exact price for moving your pipes depends heavily on the distance and how easily the installer can route pipes through the property.
The flue
Moving a gas boiler usually means changing the flue arrangement as well.
The new position needs to provide a suitable route for safely discharging combustion products outside. If a more complicated flue arrangement is required, the cost can increase.
Condensate drainage
Modern condensing boilers produce condensate that needs to drain away.
If the new boiler is farther from a suitable drain, additional condensate pipework may be necessary. The route also needs to be designed to reduce the risk of freezing where pipework runs outside.
Access
A difficult-to-reach location can increase labour time.
For example, relocating a boiler into a loft may require more work than fitting it to an accessible kitchen wall. The installer also needs suitable working space around the appliance.
Where you live
Labour rates aren’t identical throughout the UK. Prices can be higher in London and some other parts of the country, so national averages should be treated as a starting point rather than a guaranteed quote.
How much does it cost to move a combi boiler?
Combi boilers don’t require a separate hot-water cylinder, which can simplify the heating-system layout compared with some conventional systems.
However, a combi still requires several connections. Moving one can involve extending the gas supply, central-heating pipes, hot and cold water pipes, condensate drainage, electricity and the flue.
As a result, the distance and complexity of the move generally matter more than the fact that the appliance is a combi.
Are there other costs when moving a boiler?
The heating work isn’t necessarily the end of the project.
Removing a boiler can leave behind:
- A hole where the old flue passed through the wall
- Redundant pipe holes
- Damaged plaster
- Missing tiles or flooring
- Cabinet alterations
- Areas that need redecorating
Making good these areas isn’t necessarily included in the engineer’s quote.
Plastering, rendering, skimming and decorating are potential additional costs after a boiler relocation.
This can be particularly important if you’re moving the boiler as part of a kitchen renovation. Ask beforehand whether the quote includes restoring the old location or only removing the boiler and making the installation safe.
Is it cheaper to move or replace a boiler?
Moving your existing boiler is normally cheaper than buying and installing a new one.
An existing-boiler relocation averages around £800, but estimates for replacing a mid-range combi boiler and installing the new appliance in a different location are approximately £2,650.
However, the cheapest immediate option isn’t necessarily the best value.
Suppose you’re considering spending £800–£1,000 moving a boiler that’s already approaching the end of its useful life. If you need to replace it a few years later, you’ll effectively be paying for substantial installation work twice.
If the existing boiler is relatively new, reliable and suitable for the property, moving it can make more sense.
If it’s older, increasingly unreliable or already due for replacement, ask for quotes for both:
Moving the existing boiler
and
Installing a replacement boiler in the new location
You can then compare the additional cost of replacement with the expected remaining life of your current boiler.
Is it cheaper to move a boiler while replacing it?
It can be more economical than carrying out the two jobs separately.
Installing a replacement boiler already involves disconnecting the existing appliance, making new connections, commissioning the new boiler and completing the associated installation work. If you know you want the boiler somewhere else, changing its location during replacement can avoid paying for two separate projects.
However, relocation still increases the installation cost.
Heatable estimates that changing the boiler’s location can add approximately £500–£2,000 or more to an installation, depending on the complexity.
The biggest increases are likely where the new position requires extensive pipework, a complicated flue route or significant alterations to the property.
How long does it take to move a boiler?
Most boiler relocations take approximately one to two days, although the timeframe depends on the work involved.
Moving the boiler to another floor, installing extensive new pipework or combining the relocation with a heating-system conversion can take longer. More complex installations can extend to several days.
Your heating and potentially your hot water will be unavailable for at least part of the work, so it’s worth asking the installer how long they expect the system to be out of service.
Do you need permission to move a boiler?
You don’t normally need planning permission simply to move a boiler to another internal location in a house in England. An external flue can also normally fall within permitted development rights, subject to the relevant limits and conditions.
However, planning permission and building requirements are separate issues. Listed buildings and properties with additional restrictions can also require further consideration.
Gas-boiler work must be carried out by an appropriately qualified Gas Safe registered engineer. The new installation also needs to meet the applicable requirements for matters such as the flue and safe operation.
The building-control system varies across the UK, so the requirements depend on whether the property is in England, Wales, Scotland or Northern Ireland.
Frequently asked questions
Can you move an existing boiler?
Yes. An existing boiler can be moved if the new position is suitable and the necessary connections can be rerouted. For a gas boiler, the work needs to be carried out by an appropriately qualified Gas Safe registered engineer.
How much does it cost to move a boiler a few feet?
A short move is generally cheaper than relocating a boiler to another room or floor, but there isn’t a reliable fixed price per foot. Even a small move can require changes to the gas supply, flue, heating pipes and condensate drainage. The overall UK estimate for moving an existing boiler is around £600–£1,000.
Can you move a boiler without replacing it?
Yes. There’s no need to buy a new boiler simply because you want to change its location. However, if the existing appliance is already old, compare the relocation cost with replacing it at the same time.
How much does it cost to move a boiler downstairs?
Moving a boiler from upstairs to downstairs will cost about £1,000. The actual cost depends on the required pipework, flue arrangement, access and alterations to the property.
Does moving a boiler add value to a house?
There’s no guarantee that relocating a boiler will increase a property’s value by more than the cost of the work. The main benefit is usually practical: freeing kitchen storage, improving a room layout or moving the appliance somewhere less intrusive.
Can I move a boiler myself?
No, not if the work involves a gas boiler. Gas work must be carried out by someone who is appropriately Gas Safe registered and competent for that work.
Sources
Heatable, Boiler Installation Costs & Prices (https://heatable.co.uk/new-boilers/advice/boiler-installation-costs-prices)
HSE, Gas safety check: who can do it? (https://www.hse.gov.uk/gas/landlords/safetycheckswhocan.htm)
Planning Portal, Boilers and heating (https://www.planningportal.co.uk/permission/common-projects/boilers-and-heating/planning-permission)
Accurate as of: 4 September 2026