Cost of Moving a Boiler

How Much Does It Cost to Move a Boiler?

Moving a boiler is a specialist job that should always be carried out by a qualified heating engineer. This is especially important if the system involves gas connections, which must legally be handled by a Gas Safe registered professional.

The final price will depend on several factors, including the distance between the old boiler and new boiler locations, how much pipework needs rerouting, and whether additional materials such as flue extensions are required.

So, how much does moving a boiler cost?

The average cost for relocating a boiler is between £500 and £1,000.

The actual price you pay will depend on several factors:

• The type of boiler being moved.
• The difficulty of the job (e.g., the distance from the original location to the new location).
• If you need significant upgrades (e.g., extra pipework, flue extensions, magnetic filter).
• Your location in the UK.

Moving a boiler can often become a more extensive job than simply installing a new boiler. This is because it involves dismantling the boiler's pipework and fittings, then reinstalling it in its new location.

Boiler Relocation Cost

The average cost of boiler relocations ranges between £500 and £1,000. However, this can vary based on the individual scenario and can reach £1,500 when moving a conventional boiler, or likewise if there's extensive pipework required which can impact the overall boiler cost.

The below table shows the average relocation cost by boiler type:

The table below shows average costs by relocation scenario, which is one of the biggest factors affecting the final price:

Flue Cost

An extension flue pipe may be needed to reach a safe area outside. A new hole for the flue will be drilled for this, and will cost around £75 to £125 per metre.

Pipework Cost

The new pipework is one of the biggest costs of moving a boiler.

A condensate pipe will be connected to a waste pipe, and the boiler will need to be reconnected to the existing pipework in the home. This will cost around £400 to £600, especially if you need a replacement waste pipe as a result of moving the old boiler.

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Labour Cost to Move a Boiler

When moving a boiler from one location to another, you will need to hire a qualified engineer to carry out the work.

Heating engineers will usually work at an hourly rate, with labour costs of around £40 to £60 per hour.

In London and the surrounding areas, you can expect labour costs to rise to between £60 to £80 per hour due to the increased demand.

The rate will depend on the individual plumber, the amount of experience they have, the complexity of the job, and your location in the UK.

In most cases, it will usually take around 1 to 2 days to move a boiler, depending on how far you are moving it and the job's difficulty.

Based on these rates and typical job durations, you can expect total labour costs of around £300 to £600 for a straightforward same-room move, rising to £600 to £1,200 for a more complex relocation such as moving to a different floor or the loft.

It's a good idea to get this job done during the summer so that you don't have to go too long without your heating or hot water.

Where Can You Move a Boiler To?

Most boilers can be relocated to a range of positions in the home, provided the new location meets gas safety and building regulation requirements. The most common destination rooms and their typical cost implications are covered below.

• Same Room — Moving the boiler a short distance within the same room is the simplest and most affordable option, typically costing £500 to £800. The gas supply and pipework usually need minimal adjustment.
• Different Room (Same Floor) — Relocating to an adjacent room or another room on the same floor is a common choice during kitchen refits. Costs typically range from £700 to £1,200, depending on how much new pipework and flue work is involved.
• Upstairs to Downstairs (or Vice Versa) — Moving a boiler between floors is one of the more involved relocations. Floorboards may need to be lifted, and additional pipework will be required. Expect to pay around £800 to £1,400. Conventional boilers with gravity-fed systems may not be suitable for moving downstairs without additional work to reposition the water tank.
• Loft — A loft relocation is possible but tends to sit at the higher end of the cost range (£900 to £1,500). The boiler must be accessible for servicing, and adequate frost protection and pipe insulation are usually required to prevent freezing in cold weather.
• Utility Room — This is often a straightforward and popular destination, particularly in homes with an adjoining utility room. Costs vary depending on the distance from the existing pipework, but this is generally one of the more practical and cost-effective options.
• Garage — Moving a boiler to a garage is possible but adds cost due to the need to extend gas pipework and ensure adequate insulation against cold temperatures. Budget for £900 to £1,500 in most cases.
• Bathroom — Boilers can be installed in bathrooms, but there are strict requirements. The electrical spur must be located outside the bathroom entirely, and the boiler should ideally be enclosed in a cupboard. Always confirm compliance with your engineer before proceeding.

Bedrooms are generally not recommended due to the risk of carbon monoxide exposure if a fault develops, and the potential for noise disturbance. Some insurers may also be reluctant to cover a boiler installed in a bedroom.

Move Your Existing Boiler or Install a New One?

Before committing to a relocation, it's worth considering whether moving your current boiler is the most cost-effective choice — or whether installing a new boiler in the desired location makes more sense.

When Moving Your Existing Boiler Makes Sense

• Your boiler is relatively new — If your boiler is under 10 years old, still under warranty, and working reliably, moving it is usually the better option. There's no reason to replace a boiler that has plenty of life left.
• The move is straightforward — A short, same-room or same-floor relocation is unlikely to be so costly that replacement becomes the more logical choice.
• You're carrying out wider renovation work — If you're refitting a kitchen or converting a loft and simply need the boiler repositioned, moving it is often the most practical route.

When Installing a New Boiler in a New Location Makes More Sense

• Your boiler is older — Boilers over 10 years old may be nearing the end of their working life. Spending £500 to £1,000 or more moving an ageing unit, only to replace it a couple of years later, is rarely cost-effective. Many engineers will recommend a replacement at this stage.
• The labour costs to move it are high — For complex relocations involving extensive pipework, the cost to move your existing boiler can approach £1,400 or more. At that point, the additional cost of a new boiler in the right location may represent better long-term value, particularly given that modern boilers can be over 90% efficient, compared to less than 50% for some older models.
• You want to switch boiler type — If you're moving from a conventional boiler to a combi boiler, or making another significant system change, it often makes more sense to factor in the new installation at the same time rather than moving the old unit first.
• The boiler is no longer under warranty — Moving a boiler can void manufacturer warranties if it isn't done in line with their terms. If the warranty has already lapsed, this removes one reason to hold onto the existing unit.

Replacing a combi boiler with a new unit in a different location typically costs between £1,300 and £4,000, depending on the model and installation complexity. While this is significantly more than a straight relocation, the improved efficiency and reliability of a new boiler can offset the higher upfront cost over time.

Factors That Impact the Cost of Moving a Boiler

Several factors can influence the overall cost of relocating a boiler. The final price will largely depend on the complexity of the job, the boiler type, and how much pipework or additional materials are required.

• Distance you are Moving the Boiler — Relocating your existing boiler can vary in price depending on the distance and the complexity of the work involved. Moving the unit a short distance within the same room is usually cheaper than relocating it altogether.
• Size of the Boiler — The larger the boiler, the more difficult it is to move. Bigger boilers often take longer to relocate and can require more than one pair of hands, which increases labour costs.
• Type of Boiler — Different types of boilers can be easier than others. For example, oil boilers are more complex to relocate compared to a standard gas boiler, often requiring additional safety measures and specialist knowledge.
• Ease of Access — If the installation point is difficult to access, the job may take longer to complete. Restricted access can increase labour costs due to taking longer and may require additional assistance.
• New Location — The distance between the old boiler and new locations can significantly affect the price. Moving a boiler along the same wall is usually straightforward, while relocating it to another room, a loft, or a utility room may require more extensive pipework and installation work.
• Gas Connections — If the old boiler is being moved to an area without an existing gas supply, the gas pipework may need to be extended or rerouted. This work can cost around £45 to £85 per metre, depending on the complexity of the installation.
• Location of Property — Labour costs can vary depending on where you live in the UK. For example, heating engineers in London and the South East generally charge higher rates than those in other regions.

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What's Involved in Moving a Boiler?

Relocating a boiler involves disconnecting the existing system, then reinstalling it in the new location with updated pipework, a new flue outlet, and all necessary safety checks. Any work on a gas boiler must legally be carried out by a Gas Safe registered engineer.

Assuming you wish to proceed with having your boiler relocated, below is a guide to the general process involved:

Before the Job

• Planning the Move — The move depends on factors such as the feasibility of the new location, your boiler’s condition and whether it is possible to safely install a new boiler flue as required.

During the Job

• Installing the Flue — Your engineer will first of all install a new boiler flue outlet to vent safely outside.
• Pipework and Connections — New pipework will be installed to carry water in and out of the boiler. The boiler will need to be re-piped and reconnected to your radiators.
• Gas Work — Moving or extending the gas pipe fitting must be done by a Gas Safe registered engineer. Depending on the boiler’s condition, you may choose to replace it with a new unit.
• Checking Boiler Suitability — In some cases, your existing boiler may no longer be suitable for the new location, in which case you may not be able to proceed until purchasing a replacement boiler.

After the Job

• Redecorating — Once the move is complete, the area where the boiler originally sat is likely to need redecorating.
• Finishing Touches — The new location may also require minor repairs or touch-ups due to some unavoidable damage during installation.

Additional Boiler Relocation Costs

Some boiler relocation costs are considered additional options when moving a boiler, rather than essential. As such, your circumstances will dictate whether or not you need to budget accordingly.

• Power Flush — While the heating system is drained as part of a boiler relocation, it's also a good opportunity to have it power flushed. This removes sludge and debris from the pipework, improving efficiency and reducing the risk of future blockages. See our power flush cost guide for a full breakdown, but typically expect to pay between £400 and £850, depending on the size of the system.
• Carbon Monoxide Alarm — If you don't already have one fitted near your boiler, a carbon monoxide alarm is a small but important addition. These cost around £20 to £30 and are strongly recommended whenever a gas boiler is installed or relocated.
• Heating Controls Upgrade — To optimise your boiler's efficiency, you can upgrade your existing heating controls, such as a smart thermostat. This can cost between £100 and £650, depending on the type of upgrade. See our Nest thermostat installation cost guide for more detail.
• Magnetic Filter Cost — These filters extract debris from the water in your pipes and can help to reduce rust. They are great for maintaining your pipes in the long term. The cost for these is around £120 to £225.
• Boxing In Your Boiler — Once relocated, you may want to conceal the boiler and its pipework with a fitted unit or boxing. The cost to box in a boiler typically costs around £335, depending on the size and finish required.
• Making Good the Old Location — Once the boiler has been moved, the area it previously occupied will likely need some remedial work. This can include filling holes left by pipework and fixings, plastering, and redecorating. Costs will vary depending on the extent of the work, but budget for at least £100 to £300 for minor repairs and redecoration.
• Scaffolding — If your boiler is being relocated to the loft and access is difficult, scaffolding may be required. This is not always necessary but can add £650 to £1,200 to the overall cost if needed. See our scaffolding hire cost guide for more detail.
• Replacing Your Boiler in a New Location — In some cases, homeowners may wish to install a new boiler but in a different location. Replacing a combi boiler, for example, with a new one but in an alternative location costs between £1,300 and £4,000. The cost depends on the ease of access, combi boiler model, and the complexity of the installation.
• Boiler Service Cost — You should book a full service once a year, although when moving a boiler it's also a good opportunity to ensure everything is working as expected. Boiler service costs are usually around £100, depending on your type of boiler and your location in the UK (for example a combi boiler service can be different to oil boilers).
• New Radiator Cost — To improve the efficiency of your central heating system, rather than buying a new boiler, it may be worth removing and replacing some of your old radiators. The average cost to replace a radiator is around £200 per radiator. These prices can change depending on the type of radiator and the difficulty of the job.

Checklist: Finding a Local Tradesman to Move a Boiler

You will need to consider a few key points before hiring a contractor to move your boiler:

• Are they on the Gas Safe register? Only qualified engineers in the UK that are listed on the Gas Safe register are legally allowed to work on gas appliances, including jobs such as relocating a boiler.
• Do they have the right certifications? In addition to gas engineers being registered, oil-based systems usually require an OFTEC technician. Any electrical connections and controls may require a qualified electrician who's already listed on the competent persons register.
• Do they have public liability insurance? This isn't a legal requirement, however, it does protect against personal injury and accidental damage to your property.
• Does your contractor have the right experience? Ask when they last carried out a similar job, and if they appreciate the difference between combi boilers and a conventional boiler. This will help provide you with confidence in their ability.
• Does their work come with a guarantee? For example, can they confirm everything is in line with building regulations, and will they fix any issues should they arise?
• Have you received more than one quote? Ask for a cost breakdown for each element of the job. It's recommended to request at least three separate quotes so you can compare offers, which you can do via MyJobQuote without any obligation to commit.
• Is waste removal included? By having an itemised quote in writing, you can also ensure there aren't any hidden costs (such as waste removal) and know exactly what you're paying for.
• Do they have positive customer feedback? Check their MyJobQuote profile for examples of their work and customer reviews, or ask friends and family for recommendations.

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