Radiator Replacement Cost in the UK: Price Guide
The average radiator replacement cost in the UK is about £200 for a standard central heating radiator, with fitting included. Most straight swaps cost between £150 and £300. Fitting alone usually costs £70-£150 and takes 1 to 2 hours.
The price is mainly based on the size of the radiator, the type, and whether the pipework needs to change. The price of radiator replacement can be reduced if it’s a direct swap. If a radiator is to be moved or upsized, the pipes will require alteration, and it will be more costly.
This guide covers radiator replacement costs by size and type, labour, whole-house totals, and the extras that can change a quote.
How much does it cost to replace a radiator?
Replacing a radiator can cost about £200 on average. A small radiator may cost around £150, and a large one can cost £250 to £300.
Radiator replacement cost by size
| Radiator Size | Typical Job Time | Average All-In Price (Labour + Radiator) |
|---|---|---|
| Small (about 40 × 60 cm) | About 1 hour | Around £150 |
| Medium (about 60 × 100 cm) | 1–2 hours | Around £200 |
| Large (about 80 × 180 cm) | About 2 hours | Around £250–£300 |
These are average prices for a like-for-like swap on existing pipework, including labour and a standard radiator.
To work out how much to replace a radiator in your home, start with its size.
What is the labour cost to fit a radiator?
If the new radiator fits in the same place, the labour cost will be approximately £70 to £150 and the process may take around 1 to 2 hours.
Labour costs involved in replacing a radiator in the UK include draining or isolating the system, removing the existing radiator and fitting the new one, refilling and bleeding. Most engineers work on a per-hour basis and could charge anything from £40 to £80, which can vary in different areas.
How much do new radiators cost?
New radiators cost from about £20 for a basic single panel to about £750 for cast iron. Panel radiators are the most common type in UK homes, and a standard double panel often costs about £50 to £90.
These prices are for the radiator only, and fitting is extra.
| Radiator Type | Typical Price (Supply Only) |
|---|---|
| Single Panel | £20–£150 |
| Double Panel (Type 22) | £50–£250 |
| Column | £100–£500 |
| Vertical | £100–£575 |
| Designer | £150–£600 |
| Towel Rail | £25–£500 |
| Cast Iron | £120–£750 |
New radiators can vary in price depending upon size, heat output and style. More significant and powerful models are more expensive. The designer, column and cast iron radiators are more expensive than the standard panels due to the materials and weight of the radiator.
Make sure that the pipe centres, size and heat output are suitable before purchase to ensure the radiator fits in your existing pipework.
How do you choose the right radiator size (BTU)?
Radiator output is measured in BTU per hour or in watts. One watt is about 3.4 BTU. A room does not heat up if the radiator is too small, and one that’s too high costs more than it needs to.
To determine what radiator size you need, use the BTU calculator for your room. An online BTU calculator does this based on the size of the room, insulation, windows, direction the room faces and its use. Before purchasing, ensure that the pipe centres and output are as per your needs.
Heat pump note: A heat pump will warm the water to a lower temperature than a gas boiler. The temperature of the radiator is typically higher, so the same radiator is able to produce less heat with a heat pump. If it is intended to be changed, there is a possibility that larger radiators or double panels may be required. Ask your installer to size them for the lower temperature.
What is the cost to replace radiators in a house?
The cost of replacing all of the radiators in a house range from approximately £600 for a small flat to about £3,000 for a large house. It will depend on the number of radiators you have.
| Property | Number of Radiators | Cost Can Range From |
|---|---|---|
| 1–2 Bed Flat | 4–5 | £600–£1,250 |
| 3-Bed House | 6–8 | £900–£2,000 |
| 7 Radiators | 7 | £1,050–£1,750 |
| 4-Bed House | 9–12 | £1,350–£3,000 |
The range uses £150 to £250 per radiator, and more for large radiators. These prices are for radiators replaced in the same positions on your existing pipework. The cost to replace 7 radiators in the UK is about £1,050 to £1,750.
Replacing all radiators in one visit can cost less per radiator, because the engineer drains and refills the system once. A whole-house job usually takes 1 to 3 days.
How much does radiator installation cost?
The radiator installation cost for adding a new radiator is usually about £250 to £350, depending on its size. Quotes often leave out the radiator itself, so check whether it is included.
| Radiator Size | Typical Job Time | Average Fitting Cost |
|---|---|---|
| Small | 2–3 hours | Around £250 |
| Medium | 3–4 hours | Around £300 |
| Large | 4–5 hours | Around £350 |
Adding a radiator costs more than replacing one because the engineer has to run new pipes to its position and may also check that your boiler can supply the extra radiator. Moving an existing radiator can cost about £275 on average.
What affects radiator replacement cost?
The most important factors that influence radiator replacement cost are the size and type of the radiator, pipework changes, condition of your system, and your region. The points below can also make changes to the price.
- Draining and access: if a lockshield valve is seized, the engineer cannot isolate the radiator and has to drain the system. This takes longer and needs fresh inhibitor. You may also need to balance your radiators afterwards, which costs extra. A radiator behind furniture or fixed units takes longer to reach.
- System condition: old pipework and sludge can add time.
- Wall repairs: repairs and redecorating behind the radiator are usually not in the quote.
What extra costs can add to a radiator replacement?
The average price of about £200 covers a standard radiator swapped in the same position. These jobs are often quoted on top of it.
| Extra | Average Price |
|---|---|
| TRVs, Fitted | About £70–£140 per radiator |
| System Balancing | About £100–£200 |
| Old Radiator Disposal | About £20–£50 |
| Power Flush | Around £400 |
| Pipework Upgrades or Rerouting | About £800–£1,000 |
Fitting TRVs while the system is drained saves a second visit. A power flush is only needed when sludge is affecting the system.
Should you repair or replace a radiator?
If a radiator fault is causing a problem, repair it. If it is a worn-out radiator, replace it. A minor repair, like fixing a leak or a faulty valve, costs about £70 to £170. Replacing a radiator costs around £150 to £300, depending on size.
When is a radiator repair enough?
- Cold at the top: most often caused by trapped air, and bleeding the radiator often fixes it.
- Bubbling or gurgling in the system: Air in the system can cause radiator bubbling or gurgling. Check central heating noises for banging, hissing and creaking.
- A leaking or stuck valve: A leaking or “stuck” valve may be easily repaired without replacing the radiator. See the leaking radiator if the leak is from the radiator body.
If the radiator is cold at the bottom, or several are cold at once, the cause is more likely sludge in the system than a faulty radiator. You may need a power flush or an engineer’s visit, and replacing one radiator won’t fix it. If your radiators are not heating up, the boiler may be at fault and need a boiler repair.
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When should you replace the radiator?
Replace a radiator when it is over 15-20 years old, it rusts through, or it leaks again.
Older radiators lose heat output as rust builds up inside them. Rust can also cause small pinhole leaks that are difficult to find, and repeated call-outs can cost more than one replacement.
Does boiler or home emergency cover pay for radiator replacement?
It depends on your policy. Some boiler and home emergency policies include radiator repairs, and others exclude radiators, so check the terms before you book a radiator replacement.
Policies are usually written for sudden breakdowns and emergencies, so replacing a radiator because of its age, wear or appearance may fall outside the cover. Check whether your policy lists radiators, pays for repairs, replacements or both, and what excess applies.
Conclusion
The average cost to replace a radiator is about £200. Your own quote depends mostly on the size and type of the radiator, your region and whether the pipework has to change. Asking for a written quote that lists the radiator, labour, valves and disposal makes two quotes easy to compare.
If you are replacing a radiator now or planning for a future heating repair, 24│7 Home Rescue offers boiler cover, home emergency cover and landlord boiler cover, along with one-off services including boiler repair, CP12 certificates and boiler servicing. If a radiator stays cold and you are not sure whether the fault is in the radiator or the boiler, an engineer’s visit can help you find the cause before you pay for a replacement.
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Frequently Asked Questions
Do I need a plumber to replace a radiator?
A plumber or heating engineer is a safer choice to replace a radiator. If the valves are refitted or the system refilled incorrectly, leaks or a lack of pressure in the heating can appear.
Do I need a Gas Safe engineer to replace a radiator?
No, not for the radiator itself. Any person who is not Gas Safe registered can fit radiators and water pipes, but the work on the boiler or final connection of the pipes must be carried out by a Gas Safe registered engineer.
How long does it take to change the radiator?
A change of a radiator typically takes 1-2 hours to perform in the same position and 3 hours for a difficult swap. A radiator that moves or changes in size may take up to half a day or more, as the pipework must be changed too.
How long does it take to replace 7 radiators?
The time it takes to replace 7 radiators is typically 1 to 2 days. The amount of time will depend on the size of the radiators, their accessibility, and whether any pipework needs to be replaced, so when you receive the quotation, ask the engineer for an estimate.
How much does it cost to remove a radiator?
The price of removing a radiator without replacement is approximately £80 to £120, depending on the size of the radiator. The engineer detaches and empties the radiator, removes the radiator from the wall and seals the pipes. Ask whether the price includes capping and whether taking the radiator away is extra.
At 24|7 Home Rescue, we aim to keep our blogs accurate and helpful at the time of publication. However, details such as images, services, prices, offers, discounts, or related information may change over time. Content is provided for general information only and should not be taken as professional advice. For appliance- or boiler-specific guidance, always refer to your manufacturer’s user manual, as controls, settings and features may vary by brand and model. For the latest updates on our services, prices, and any available offers or discounts, please review our Terms & Conditions or contact us directly. 24|7 Home Rescue accepts no liability for any actions taken based on outdated or incomplete content. Our team is always happy to help with any questions.
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