Quick Answer
Installing a new radiator in the UK costs £300–£600 for a supply and fit on a new position, £200–£400 to move an existing radiator, and £150–£350 for a like-for-like swap in 2026. The type of radiator and location significantly affect the final cost.
Whether you're adding a radiator to a new extension, upgrading an old panel radiator to a stylish column design, or replacing a broken unit, understanding what the job should cost in 2026 is essential before calling a plumber or heating engineer. Radiator installation is one of the more straightforward plumbing jobs, but prices still vary considerably based on the type of radiator, whether new pipework is needed, and the accessibility of your existing central heating system.
All prices in this guide are for 2026 UK market rates and include both labour and materials unless otherwise stated. For a like-for-like replacement where pipework already exists, the job is relatively quick and affordable. New positions, however, require running new pipe from the nearest branch or manifold — which adds significantly to the cost.
In this guide
Types of Radiator Installation and Costs
The three main types of radiator installation jobs have very different costs, driven by how much pipework is needed:
| Installation Type | Typical Cost (2026) | Time Required | What's Included |
|---|---|---|---|
| Like-for-like swap (same location) | £150 – £350 | 1–2 hours | Drain down, remove old rad, fit new rad, refill |
| Move existing radiator (short run) | £200 – £400 | 2–4 hours | Cap old tails, extend/reroute pipework, refit |
| New radiator in new position | £300 – £600 | 3–6 hours | Full pipework run, valves, radiator supply and fit |
| New radiator in extension (long run) | £400 – £900 | 5–8 hours | Long pipe run, may require zone valve addition |
| Electric radiator installation | £200 – £500 | 1–3 hours | Electrician required for wiring; no plumber needed |
These prices typically include standard thermostatic radiator valves (TRVs), brackets, labour, and the drain-down and refill of the system. The cost of the radiator itself varies widely — a standard single-panel 600x1000mm panel radiator costs £30–£80, while a designer column radiator of similar output can cost £200–£600+.
If your central heating system needs a power flush before new radiators are added — to remove sludge and debris that could damage new components — you'll need to budget an additional £300–£600 for that work. For more on this, see our guide on what a power flush is and when you need one.
Radiator Types: What to Know Before Buying
The choice of radiator affects both the upfront cost and the ongoing running costs. Here's a summary of the main types available in 2026:
| Radiator Type | Supply Cost (typical) | Heat Output | Best For |
|---|---|---|---|
| Standard panel (single) | £25 – £80 | Low–medium | Budget-conscious, basic rooms |
| Standard panel (double) | £40 – £120 | Medium–high | Living rooms, kitchens, bedrooms |
| Column radiator (cast-iron style) | £150 – £600+ | Medium–high | Period properties, visible focal point |
| Vertical flat panel | £80 – £250 | Medium | Small rooms, limited wall space |
| Heated towel rail | £50 – £300 | Low | Bathrooms, dual-fuel options available |
| Electric panel radiator | £80 – £400 | Adjustable | Rooms without central heating access |
When choosing a radiator, the heat output (measured in BTUs or watts) must match the room size and heat loss characteristics. A plumber or heating engineer can calculate the required output — or use a free BTU calculator online. Fitting an undersized radiator is one of the most common mistakes homeowners make when replacing radiators themselves.
If you're also considering a new boiler alongside your radiator work, read our guide on how much a new boiler costs in the UK to understand the full heating upgrade picture. Radiators are often replaced at the same time as a new boiler installation, which can reduce overall labour costs.
Plumber Labour Rates by Region (2026)
Radiator work is carried out by plumbers or heating engineers. Day rates and hourly rates vary considerably by location:
| Region | Hourly Rate | Day Rate |
|---|---|---|
| London | £60 – £120/hr | £400 – £600 |
| South East | £55 – £90/hr | £350 – £500 |
| South West | £45 – £75/hr | £300 – £450 |
| Midlands | £40 – £70/hr | £270 – £420 |
| North West | £40 – £70/hr | £260 – £400 |
| Yorkshire | £38 – £65/hr | £250 – £380 |
| North East | £35 – £60/hr | £240 – £360 |
| Scotland | £40 – £70/hr | £260 – £400 |
| Wales | £38 – £65/hr | £250 – £380 |
What Affects the Cost of Radiator Installation?
Beyond the type of installation and location, several other factors can move your quote significantly:
- Length of pipework run: A radiator that can be connected with a short 1-metre tail from existing pipework is far cheaper than one requiring a 10-metre run across the house in copper tube.
- Floorboard access: Running pipes under floorboards requires lifting boards, which adds time. In rooms with glued-down engineered wood or tile floors, surface-run pipes in boxing are often the only practical option.
- Type of system: Older open-vented systems (gravity-fed with a tank in the loft) are more complex to work on than modern sealed pressurised systems. If your system is old, check whether it needs upgrading.
- Inhibitor and system condition: A responsible plumber will add corrosion inhibitor when refilling after work. If your system is old and heavily sludged, a power flush before the new radiator is installed is advisable.
- Radiator valve type: Thermostatic radiator valves (TRVs) cost £15–£40 each; smart thermostatic valves (Tado, Drayton Wiser) cost £50–£100 each. The type of valve you choose affects both cost and long-term energy management.
- Whether boiler pressure needs re-pressurising: Draining down and refilling the system almost always results in needing to repressurise the boiler. If your boiler is losing pressure frequently, this may indicate a separate issue — see our guide on why your boiler keeps losing pressure.
For finding a reliable plumber for radiator work, read our guide on how to find a reliable plumber in the UK.
Frequently Asked Questions
How long does it take to fit a new radiator?+
A like-for-like radiator swap takes 1–2 hours for an experienced plumber. Adding a radiator in a new position — requiring new pipework from the nearest branch — takes 3–6 hours depending on how far the pipes need to run and the access available.
Can I install a radiator myself?+
Replacing a like-for-like radiator using existing connections is a task some capable DIYers manage successfully. However, any work involving extending or rerouting the central heating pipework should be done by a qualified plumber. Incorrectly joined pipes in a pressurised system can fail catastrophically, causing water damage. Gas-related work must always be done by a Gas Safe registered engineer.
Do I need a new boiler to add a radiator?+
No — in most cases you can add a radiator to an existing system without replacing the boiler, as long as the boiler has sufficient capacity for the additional heat load. A heating engineer can calculate whether your existing boiler output is adequate. Adding multiple radiators to an undersized boiler can reduce efficiency across the whole system.
Should I fit thermostatic radiator valves (TRVs)?+
Yes. TRVs allow you to control the temperature of individual rooms, which reduces energy waste significantly — particularly in rooms you don't use much. Since 2022, new and replacement radiators in rooms that are being heated for the first time must be fitted with TRVs under Part L of the Building Regulations. The exception is the room where the room thermostat is located.
How much does it cost to add a heated towel rail?+
Adding a central-heating-fed heated towel rail in a bathroom costs £250–£600 in 2026, including all pipework, valves, and the rail itself (budget model). Dual-fuel towel rails (which can run off the central heating or an electric element) cost more — typically £300–£800 supply and fit.
Is it worth replacing all radiators at the same time as a new boiler?+
Not always. If your existing radiators are in good condition and sized correctly, there is no need to replace them. However, if some are heavily corroded, undersized for the room, or incompatible with the new boiler (e.g., if you're switching to a heat pump, which requires larger surface area radiators), a combined replacement makes sense and often reduces total labour costs.
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