How much does radiator replacement cost in the UK?
A radiator replacement costs £180 on average in the UK. Most jobs fall between £110 and £350 per radiator. Radiator type: Single panel £110 to £170, Double panel £130 to £200, Towel rail £150 to £260. Prices reviewed June 2026.
Swapping a single radiator like-for-like usually costs about £110 to £350, with most jobs landing near £180. The price rises with designer or vertical rads, moving the radiator, or adding a brand-new one on fresh pipework.
Radiator replacement cost calculator
Use the calculator to price your radiator replacement in 2026. Adjust the options and area for a UK cost range. Nothing is sent anywhere.
Radiator replacement cost breakdown
Typical radiator replacement costs, by the unit:
| What | Typical UK cost |
|---|---|
| Per radiator, supplied and fitted | £110 to £200 per radiator |
| + Designer, vertical or column radiator | add £100 to £350 per radiator |
| + Add a brand-new radiator (new pipework) | add £150 to £350 per radiator |
| 1 radiator (typical) | £110 to £200 |
| 2 radiators | £220 to £400 |
Radiator replacement cost by radiator type
A like-for-like panel swap onto the existing brackets and valves is the cheap end. Anything that changes the shape, the position or the pipework costs more.
| Radiator type | Cost per radiator, supplied and fitted | Notes |
|---|---|---|
| Single panel, like for like | £110 to £170 | Straight swap onto the existing brackets and valves |
| Double panel, like for like | £130 to £200 | More heat output for the same wall space |
| Towel rail (bathroom) | £150 to £260 | Often needs the valve positions moving |
| Designer or vertical | £210 to £320 | Taller than the old unit, so pipework usually moves |
| Column or cast-iron style | £250 to £350 | Heavy. May need wall fixings or floor feet |
Supplied and fitted, per radiator, supplied and fitted. UK guide prices reviewed June 2026, not quotes.
Radiator replacement cost by number of radiators
These are the guide rate multiplied out. Doing several in one visit tends toward the low end of each range, because the system only gets drained, refilled and rebalanced once.
| Job | Radiators | Typical total |
|---|---|---|
| One radiator | 1 radiator | £110 to £350 |
| Flat or small house | 5 radiators | £550 to £1,800 |
| Typical 3-bed house | 8 radiators | £880 to £2,800 |
| 4-bed house | 11 radiators | £1,200 to £3,900 |
Totals are the guide rate of £110 to £350 per radiator applied to each size. Indicative, not quotes.
What's included in the price?
Typical radiator replacement prices include:
- Draining down the radiator or the local part of the system
- Removing the old radiator and disposing of it
- Fitting the new panel radiator to the existing brackets or new brackets
- Connecting to the existing valves and pipe tails
- Refilling, bleeding and rebalancing that radiator
- Checking for leaks and confirming it heats through
What changes the price?
The things that move radiator replacement prices most:
Whether it is a like-for-like swap or a bigger upgrade
Moving the radiator to a new spot, which means new pipework and more time
Fitting a designer, vertical or column radiator rather than a standard panel
Adding a brand-new radiator where none existed, needing fresh pipe runs
Whether the whole system must be drained, or just the one radiator isolated
A power flush or system clean carried out at the same time
How the price is built up
The base figure is the labour to drain, remove, fit and rebalance a like-for-like radiator, usually £110 to £200 per unit for a job of 1 to 2 hours. On top of that sits the cost of the radiator itself, cheap for a plain panel but far more for a designer or column model. Moving the radiator, running new pipework or draining the full system all add labour and lift the total well above the base rate. Most of the price is labour, with a standard steel panel radiator costing only about £40 to £150, while designer units run much higher.
Ways to keep the cost down
- Keep the new radiator the same size and in the same place so it is a straight swap with no new pipework
- Buy the radiator yourself from a merchant rather than paying a trade markup, then check the valve centres match
- If you are changing several radiators, book them in one visit so the system is only drained once
- Only pay for a power flush if the system is genuinely sludged up, not as a default add-on
Does where you live change the cost?
In London, a radiator replacement typically costs around £230, about 30% above the UK average of £180. In the North, Scotland and Wales the guide figure is nearer £170.
| Region | From | Typical | Up to |
|---|---|---|---|
| Midlands / East (UK average) | £110 | £180 | £350 |
| London | £140 | £230 | £460 |
| South East / South West | £130 | £210 | £400 |
| North / Scotland / Wales | £100 | £170 | £320 |
Guide prices per radiator, scaled with the same regional multipliers as the calculator. Not quotes.
Radiator replacement cost in major UK cities
| City | From | Typical | Up to |
|---|---|---|---|
| Belfast | £95 | £150 | £300 |
| Birmingham | £110 | £180 | £340 |
| Bristol | £120 | £200 | £390 |
| Cardiff | £100 | £170 | £330 |
| Edinburgh | £110 | £180 | £340 |
| Glasgow | £100 | £160 | £320 |
| Leeds | £100 | £170 | £330 |
| Liverpool | £100 | £170 | £320 |
| London | £140 | £230 | £460 |
| Manchester | £110 | £170 | £340 |
| Newcastle | £100 | £160 | £320 |
| Sheffield | £100 | £170 | £320 |
City guide estimates, scaled by local labour costs. Indicative averages for radiator replacement, not quotes.
Expect around £150 in the north and £200 to £300 in London and the South East for the same swap.
Common questions
How much does it cost to replace a radiator like-for-like?
Replacing a radiator with the same size in the same position usually costs about £110 to £200 for the swap, and around £180 all in for a typical job. That covers draining down, removing the old unit, fitting the new one to the existing valves and pipes, then bleeding and rebalancing. A basic steel panel radiator adds roughly £40 to £150 on top if you need to buy one.
Why does replacing a radiator cost more than the basic swap price?
Radiator jobs climb above the basic swap when the work grows. Moving the radiator to a new wall means fresh pipework and more labour, often £150 to £400. A designer, vertical or column radiator costs more to buy and fit. Adding a brand-new radiator on new pipe runs, or draining the whole system rather than isolating one rad, all push the figure up. Difficult access or concrete floors add more again.
Does the whole central heating system need draining to change one radiator?
Draining the whole system is often unnecessary for a single swap. A heating engineer can usually isolate one radiator at its valves, drain just that unit, and change it without emptying the rest, which keeps the job to 1 to 2 hours. Draining down fully is more likely when you replace several radiators at once, when valves are seized, or when the system needs a clean at the same time.
How much extra does a designer, vertical or column radiator cost to fit?
Designer, vertical and column radiators cost more than a plain panel because the units are pricier and take longer to fit and align. Budget roughly £100 to £350 per radiator on top of a standard swap, so a fitted price often lands between £220 and £700 depending on size and finish. Tall vertical rads in particular need careful bracket placement and sometimes adjusted pipework.
How much does it cost to add a brand-new radiator where there wasn't one?
Adding a radiator in a room that never had one costs more than a swap because new pipework must be run to it from the existing circuit. Expect around £150 to £350 above the base rate for the pipe runs and extra labour, and more if floors are concrete, access is tight, or the run is long. The heating engineer will also check the boiler and system can handle the extra load.
Should I have a power flush done when replacing radiators?
A power flush is worth considering when radiators are cold at the bottom or the system is full of sludge, but it is a separate job, not part of a swap. It typically adds £400 to £800 depending on the number of radiators. If you are only changing one clean radiator it is usually not needed. When fitting several rads or a new boiler, a flush protects the new parts from existing debris.
Is replacing a radiator a big job?
A like-for-like swap is one of the smaller plumbing jobs: usually one to two hours per radiator, with no need to drain the whole system if the valves hold. It gets bigger when the new radiator is a different size, when valves are seized, or when you are adding a radiator where there was none, which is why prices run from £110 for a simple swap to £350 or more with new pipework.
Do I need a plumber to replace a radiator?
A competent DIYer can swap a like-for-like radiator: it is isolation valves, a couple of union nuts and careful bleeding. Pay a plumber or heating engineer when the size or position changes, when the system needs draining or a chemical flush, or for anything on a pressurised system you are not sure about. At £110 to £200 for a straight swap the labour saving is real, but so is the cost of a leak through a ceiling.
Is it cheaper to replace a radiator myself?
It can be, because most of the £110 to £350 per radiator is labour, with the panel radiator itself only about £40 to £150. A confident DIYer can do a like for like swap on a valved radiator and save the fitting cost. The risk is draining and refilling the system, bleeding air out and getting a watertight seal. A weeping joint behind plaster or under a floor is a costly mistake, so only do it if you are sure of the connections.
How long do radiators last before they need replacing?
A steel panel radiator, which is what most UK homes have, typically lasts 15 to 25 years. The spread is mostly about the water inside it rather than the radiator itself: in a system kept properly inhibited you are at the top of that range, and in one where the inhibitor has been neglected and sludge has built up you can be down to 10 to 15 years. Cast iron lasts far longer, often 50 years or more, and aluminium or electric radiators sit at 15 to 20. A 15-year-old radiator in a clean system will usually outperform a 5-year-old one in a sludged system, which is why cold spots at the bottom are worth investigating before you assume the radiator is finished.
Does replacing a radiator add value to your home?
Not really as an investment. At £110 to £350 per radiator a swap rarely shows up in a valuation, and buyers expect heating to work rather than paying extra for it. Newer radiators can help a sale feel cared for and cut running costs a little, but treat the job as fixing a cold or leaking unit for your own comfort, not as something that returns the outlay.
These are independent guide prices based on typical UK jobs in 2026. Your actual cost depends on your property, spec, access and where you live. Always get at least three written quotes before committing.