Radiator swaps, upgrades and TRVs · Ireland
Radiator Replacement Ireland: Costs, Types and Local Plumbers
Swap, upgrade, resize or move your radiators, with county-by-county guidance on what it costs, which radiator suits the room, and how to find a plumber for the job.
What’s involved
Radiator Replacement in Ireland: Sizing and What’s Involved
Replacing a radiator is more than a like-for-like swap. The right radiator is sized to the heat output the room needs, measured in watts or BTUs from the room size, window area and insulation. Getting this right is why a resized radiator can finally warm a room that always ran cold. The system is drained or the radiator isolated, the new unit hung and connected, then refilled, bled and balanced.
How Long Does a Radiator Swap Take?
A single like-for-like swap takes about one to two hours per radiator. Resizing, moving rads or a whole-house job takes longer.
TRVs and Controls Cut Running Costs
Thermostatic valves let each room hold its own temperature, improving comfort and trimming heating bills across the house.
Local coverage
Radiator Replacement by County Throughout Ireland
Radiator replacement is never one-size-fits-all. What you pay, which radiators suit your rooms, and how fast a plumber can reach you all come down to where in Ireland you live. Choose your county for 2026 pricing that reflects real local costs, the radiator options that actually apply to your homes, and plumbers working on your doorstep.
Leinster
12 countiesFrom Dublin’s Victorian terraces to the newer estates across Meath, Kildare and Wicklow, radiator work in Leinster is a steady mix of like-for-like swaps, resizing rooms that never quite warmed up, and fitting TRVs so every room can be controlled on its own. Designer and vertical rads are increasingly popular in the commuter-belt kitchen extensions.
Munster
6 countiesCork and Limerick city homes see plenty of panel radiator upgrades and heated towel rails in bathroom refurbishments, while older rural properties across Kerry and west Cork often need radiators resized to the correct heat output when heating systems are overhauled. Relocating rads to suit new room layouts is common in renovated farmhouses.
Connacht
5 countiesOlder one-off homes across Galway, Mayo and the west carry high heat demand, so getting radiator sizing right matters more here than anywhere. Column rads for period rooms, larger low-temperature radiators for heat pump upgrades, and TRVs to trim running costs all feature heavily in Connacht radiator replacement work.
Ulster
3 countiesColder winters across Cavan, Monaghan and Donegal put a premium on radiators that are sized correctly for the room and controlled properly. Homeowners here replace tired panel rads, add heated towel rails to en-suites, and fit thermostatic valves to hold comfortable temperatures without wasting oil or electricity.
Browse plumbers in any county in the full plumber directory.
The options
Radiator Replacement Ireland: Which Radiator Is Right for Your Room?
Panel Radiators
The standard convector panel and the workhorse of Irish central heating. Single or double panel, sized to the heat output the room needs. The most common like-for-like swap. Supply and fit.
Designer & Column Radiators
Period column rads for older homes and modern vertical or designer radiators for feature walls. Vertical models free up wall space in kitchens and hallways while still hitting the heat output the room needs.
Heated Towel Rails
The standard choice for bathrooms and en-suites, adding gentle heat and somewhere to warm towels. Fitted onto the central heating or run as a dual-fuel rail for summer use when the heating is off.
2026 prices
Radiator Replacement Cost Ireland 2026: Typical Prices by Job Type
Typical ranges, radiator supply extra where noted. All figures include labour and VAT at 9%.
Single radiator swap
€150–€280
Like-for-like, per radiator, plus the radiator
Designer or column radiator
€320–€750
Supply and fit, vertical or period column
Heated towel rail
€220–€420
Fitted, bathroom or en-suite
TRV upgrade
€45–€75
Per thermostatic valve, fitted
Whole-house replacement
€1,800–€4,000
All radiators, resized and balanced
For a full breakdown see our Ireland plumbing costs guide.
Efficiency and grants
Radiators, Controls and Heating Upgrades
Radiators sized correctly, together with thermostatic valves and modern heating controls, improve comfort and cut running costs. Radiator work often forms part of a wider heating upgrade, and SEAI grants support the controls and heat pump side of that work when carried out by a registered contractor.
See SEAI-registered plumbers →Hiring
How to Find a Plumber for Radiator Replacement in Ireland
Radiator replacement is standard plumbing work. Here is how to hire the right person and get it done properly.
Browse Local Plumbers in Your County
Every plumber listed in our plumber directory covers radiator replacement. Browse by county, find heating engineers near you, and contact them directly to arrange the work.
Get the Radiator Sized to the Room
A good plumber will not simply match the old radiator. The correct output in watts, or BTUs, depends on room size, window area, insulation and how the room is used. Ask for the sizing to be confirmed, especially where a room never warmed up properly on the old rad.
Get Three Written Quotes for the Work
Quotes should set out the radiator type and size, the labour, any pipework changes for a move or resize, and whether TRVs are included. A quote that names the radiator model and output is far easier to compare than a single lump sum.
Confirm TRVs, Balancing and Clean-Up
On completion the system should be refilled, bled and balanced so every radiator heats evenly, with thermostatic valves set and working. Ask that inhibitor is added back into the system after draining, as this protects the new radiators and the boiler from sludge and corrosion.
Radiator Replacement Questions From Irish Homeowners
How much does it cost to replace a radiator in Ireland in 2026?
A single like-for-like radiator swap costs €150 to €280 in 2026, plus the price of the radiator. A designer or column radiator supplied and fitted runs €320 to €750, and a heated towel rail €220 to €420. A full house of radiators, resized and balanced, is €1,800 to €4,000. Figures include labour and VAT at 9%.
Can I fit a bigger or a designer radiator in place of the old one?
Yes. If a room never warmed up properly, a radiator with a higher heat output, a double panel or a taller model can fix it. Designer and vertical radiators are a straight option too, and often free up wall space. Your plumber sizes the replacement to the heat the room actually needs rather than just matching the old unit.
Do you move or relocate radiators?
Yes. Radiators are regularly moved to suit a new kitchen layout, a room being reconfigured, or to make space for furniture. Relocating a radiator means extending or rerouting the flow and return pipework, which is straightforward where floors are accessible and more involved where pipes are buried in a solid floor.
What is a TRV and should I fit them?
A TRV is a thermostatic radiator valve. It lets each radiator hold its own temperature, so you can turn down bedrooms and spare rooms while keeping living areas warm. Fitting TRVs is a low-cost upgrade at €45 to €75 per valve that improves comfort and cuts running costs across the whole house.
How long does a radiator swap take?
A single like-for-like radiator swap takes about one to two hours per radiator once the system is drained. Fitting several rads, resizing or moving them, or a whole-house replacement takes longer, and your plumber will confirm the timing when quoting.
Do you need to drain the whole system to change a radiator?
Not always. A single radiator can often be swapped by isolating it at the valves, but many jobs are cleaner and safer with a partial or full drain-down, particularly for resizing, moving rads or a whole-house replacement. The system is then refilled, bled, balanced and topped up with inhibitor.
Find a Plumber for Radiator Replacement Near You
Radiator replacement quotes from plumbers in every county. Contact them directly, no fees, no sign-up.