Quick Answer
In West and North West London, fitting a replacement radiator on a labour-only basis where you supply the panel starts from £150.
A full supply-and-fit package for a standard Type 11 or Type 22 convector radiator starts from £200 to £300.
Designer vertical radiators and heated bathroom towel rails start from £250 to £450 or more, depending on panel weight and wall construction. These are our fixed London prices for a straightforward like-for-like swap on existing pipework. Moving a radiator or extending copper pipework requires an on-site survey and a written quote.
Radiators rarely fail overnight. Steel panels eventually rust. Pinholes develop over time. Cold bay windows need bigger convectors.
Here is what radiator installation costs across West and North West London. Honest pricing, no drama.
Key Takeaways
- Labour-only radiator fitting starts from £150 when you supply the radiator yourself.
- Supply and fit for standard Type 11 and Type 22 radiators ranges from £200 to £300.
- Designer vertical radiators and towel rails require heavy-duty Corefix wall anchors on Victorian plaster.
- Imperial pipework mismatches can be solved neatly with radiator tail extensions rather than lifting floors.
- Building Regulations Part L requires thermostatic radiator valves (TRVs) on heating system upgrades.
Diagnostic triage: do you need a new radiator?
Before replacing a radiator, check whether your issue is a simple valve fault, trapped air, sludge, or a failing panel.
Cold at Top, Hot at Bottom
No Replacement NeededTrapped air has collected at the top of the panel, displacing hot water flow
Bleed the radiator using a radiator key until water appears, then check boiler pressure
£0 (simple DIY fix with a radiator bleed key)
Ensure automatic air vent is functioning and system pressure sits at 1.2 to 1.5 bar
Cold at Bottom, Hot at Top
System Flush RecommendedDense black magnetite sludge has settled along the base of the radiator
Chemical cleanse or powerflush to clear internal waterways across all radiators
Chemical flush (from £350) or full system powerflush (from £499, or £649 for 6 to 10 radiators)
Radiator can be kept if the steel is structurally sound without external corrosion
Rust Flakes, Pinhole Leaks, or Undersized
Replacement RequiredInternal oxygen corrosion has perforated the steel casing, or single panel cannot heat the room
Replace with a modern high-output Type 11 or Type 22 convector radiator
Labour from £150, or full supply and fit from £200 to £300 per unit
Modern factory convectors provide up to 50% more heat output in the same wall space
How much does radiator installation cost in West London?
We separate labour costs from supply-and-fit packages to keep our pricing transparent.
Labour Only Radiator Installation
From £150 Fixed LabourYou supply the radiator, like-for-like swap on existing pipe centres
System isolation, draining old unit, wall bracket mounting, connecting valves, and repressurising
Homeowners who have already purchased their own designer or column radiators
Full 12-month guarantee on all plumbing joints and connections
Standard Convector (Supply & Fit)
£200 to £300 Fully FittedHigh-efficiency Stelrad or Kudox Type 11 single or Type 22 double convector
Brand-new radiator panel, heavy-duty brackets, air vent, blanking plugs, fitting labour, and disposal of old unit
Bedrooms, living rooms, and hallway upgrades replacing older single-skin radiators
Sized to exact room BTU calculations for rapid and even winter heating
Designer Vertical Radiator & Towel Rail
£250 to £450+ Fully FittedVertical column radiator, anthracite designer panel, or heated bathroom ladder towel rail
Supply & fit, Corefix masonry/lath-and-plaster anchors, thermostatic valves, and pipe alignment
Modern bathroom renovations and narrow kitchen walls where horizontal space is limited
Anchored into solid masonry or stud timber frames to carry filled water weight safely
Thermostatic Radiator Valve (TRV) Upgrade
£45 to £75 / RadiatorHigh-precision Drayton TRV4 or Honeywell Home thermostatic control valves
Allows individual room temperature control, cutting boiler gas consumption up to 15%
Meets mandatory Building Regulations Part L requirements for energy efficiency
Discounted per-valve rates when installed alongside a radiator replacement or boiler service
These starting prices apply to straightforward like-for-like swaps on existing pipework. Moving a radiator or altering copper pipework requires a free survey and a fixed written quote.
What factors shape the final installation price?
Several factors influence radiator installation costs.
Pipework layout is the primary consideration. Keeping the replacement radiator on existing pipe centres keeps the job fast and economical. Moving a radiator across the room means extending copper pipework under floorboards or chasing it into plaster.
Wall construction is equally important. Solid brick walls take standard masonry fixings easily. Victorian lath-and-plaster or modern stud walls require heavy-duty anchors like Corefix to support filled double convector panels safely.
Access also influences installation time. A radiator fitted behind kitchen cabinetry or built into bespoke decorative covers takes longer to drain and reconnect.
Room heat requirements matter too. Many Victorian terraces in Chiswick and Ealing have single-panel radiators that are undersized for the room volume. We calculate your exact BTU requirements to ensure your new radiator heats the room properly.
Straight swap versus moving a radiator
A like-for-like replacement is the fastest installation. We isolate the radiator, drain the old unit, mount the new panel on existing pipe centres, refill, and vent the system.
Relocating a radiator involves draining down, lifting floorboards, extending copper pipework, and making good. We price this with a transparent fixed quote.
Adding a brand-new radiator to a hallway or extension depends on the distance to your nearest central heating flow and return pipes.
Handling imperial pipework is straightforward. Older West London properties often have original imperial pipework. Modern radiators are manufactured in metric sizes. Rather than lifting floors to move pipes, we centre the new panel and use telescopic radiator tail extensions. This saves time and avoids flooring disruption.
Real installations in West and North West London
In a Kensal Rise Victorian terrace, an undersized single panel in a drafty front bay was replaced with a high-output Type 22 double convector on existing pipe centres. The room heated up evenly within twenty minutes.
In a Queen’s Park conversion flat, the customer requested a heavy vertical designer radiator in a renovated bathroom. The wall was plasterboard over stud framing. We installed Corefix anchors secured directly into the timber frame, holding the panel rock-solid.
In a Willesden ground-floor flat, radiators were cold along the bottom due to magnetite sludge. We flushed the circuit and fitted modern thermostatic valves to restore full heat circulation.
Do you need a powerflush before fitting new radiators?
Not every radiator replacement needs a powerflush. We test your heating system water before making recommendations.
When we drain the old radiator, we inspect the water condition. If the water is lightly discoloured, a standard chemical cleanse with fresh inhibitor is sufficient.
If thick black sludge or heavy magnetite deposits block the waterways, a powerflush is advisable. Fitting a new radiator to a sludged circuit causes cold spots within months. Read our guide to chemical flush vs powerflush for full details.
DIY installation versus booking a professional engineer
Fitting a radiator does not involve touching gas components. However, draining and refilling a sealed heating system requires care.
If system pressure drops below 1.0 bar during refilling, the boiler locks out on low pressure. If pressure climbs above 3.0 bar, the pressure relief valve dumps water outside. We balance system pressure to 1.2 to 1.5 bar cold and check every joint before leaving.
Building Regulations Part L also mandates thermostatic radiator valves (TRVs) when updating central heating controls. We install high-quality Drayton and Honeywell TRVs as part of our heating upgrades.
Maintaining your whole heating system keeps efficiency high. Our Homeowner Plan includes the standard annual boiler servicing, priority booking if the boiler breaks down and 10% off labour. Check our boiler service cost guide for pricing.
Frequently asked questions
How much does it cost to fit a radiator in London?
Labour only, where you supply the radiator, starts from £150. A full supply and fit of a standard Type 11 or 22 starts from £200 to £300. Designer radiators and towel rails start from £250 to £450 or more, depending on the model and wall type.
How long does radiator installation take?
A straight like-for-like swap on the same pipe centres usually takes under two hours. Moving a radiator or fitting one where none existed before takes longer, depending on how far the new pipework has to run.
Do I need to drain the whole system?
No. A radiator swap only needs the local section isolated, using the lockshield and TRV valves either side of the radiator. The rest of the heating system stays full and pressurised.
Do old radiators need special fittings?
Older West London properties commonly have imperial pipework, which does not match modern metric radiator tails. We centre the radiator on the existing pipes and use a telescopic tail extension cut to size, rather than lifting floorboards to move the pipework.
Can I fit a heavier designer radiator on a stud or lath-and-plaster wall?
Yes, with the right fixings. Standard wall plugs are not rated for a heavy double-convector or a full towel rail on lath-and-plaster. We use strengthened Corefix fixings anchored into the solid structure behind.
Does a new radiator need a powerflush first?
Not automatically. We drain the old radiator and check the water. If it is blocked with sludge, we will say so and explain why. If it is only dirty, a chemical flush usually does the job.
Is it legal to fit a radiator myself?
Fitting a radiator itself is not gas work, so it is not restricted to a Gas Safe engineer in the way boiler work is. But draining and repressurising a sealed system safely, and knowing when TRVs are legally required under Part L, is where most DIY jobs go wrong.
Book radiator installation in West London
Need a radiator replaced, upgraded, or relocated? Our Gas Safe registered engineers (657972) provide clear advice and fixed written quotes.
- WhatsApp us: Book in 60 seconds
- Call 020 8051 2124: our phone line is answered 24/7
- Book online: central heating services · heating upgrades
We cover Acton, Chiswick, Ealing, Fulham, Hammersmith, Kensal Rise, Queen’s Park, and surrounding areas. Clear pricing, honest advice, no drama.
Need New Radiators Installed in West London?
Our Gas Safe registered engineers (657972) provide neat radiator replacements, BTU sizing calculations, and system balancing with fixed written quotes across West and North West London.
