Local plumbers · Wicklow
Hot Water Cylinder Replacement in Wicklow: Vented, Unvented and Twin-Coil
Find a plumber for cylinder replacement, an unvented mains-pressure upgrade or a solar-ready twin-coil cylinder across Wicklow. 2026 prices, correct sizing and local plumbers from Wicklow Town to Carnew.
Hot water cylinders in Wicklow
Wicklow has a strong residential base driven by its position on Dublin's southern commuter corridor, with Bray, Greystones, Wicklow town, Arklow and Rathnew all having good natural gas network coverage. The county's mix of coastal towns, rural villages and the Wicklow Mountains means a varied mix of property types and fuel sources. Urban Wicklow has strong demand for natural gas boiler and appliance work, while inland and upland areas rely more on oil and solid fuel.
Wicklow's north, centred on Bray and Greystones, is densely suburban with large estates of 1980s-to-2010s housing. Moving south through Arklow and into the rural areas of west Wicklow, the housing becomes older and more varied, with many stone cottages, old farmhouses and mountain properties that have basic or outdated plumbing.
The options
Vented, Unvented or Twin-Coil in Wicklow
The right cylinder depends on your mains pressure, hot water demand and whether there is space for a tank.
Vented Cylinder
Fed by gravity from an attic tank and still the most common cylinder across Wicklow, from town terraces to older homes. The cheapest like-for-like swap. Supply and fit.
from€600
Heat-Pump / Solar Cylinder
A twin-coil cylinder pairs a solar or heat-pump coil with a boiler coil. Increasingly the standard replacement across Wicklow as more homes take up SEAI grant work.
from€900
Unvented (Mains-Pressure) Cylinder
Runs straight off the mains for strong, balanced pressure at every tap and shower, with no attic tank. Stores water under pressure, so it needs a competent installer.
from€1,200
2026 prices
Hot Water Cylinder Cost in Wicklow 2026
Typical like-for-like ranges across Wicklow. All figures include labour and VAT.
- Get quotes that name the cylinder make, litre size and grade
- A failed immersion element alone is €150 to €300, not a full swap
- Changing to unvented adds mains checks and a discharge route
Wicklow Town and Arklow are served by local surface water sources. Bray and Greystones draw from the greater Dublin supply network. Many rural west Wicklow properties are on private wells, and water treatment before the boiler is strongly recommended in these cases.
- Cylinder replacement €600–1,100
- Unvented mains-pressure install €1,200–2,200
- Upsizing or relocation €900–1,600
- Immersion element and thermostat €150–300
- Annual check €70–110
Indicative 2026 ranges. Always confirm with a written quote before work begins.
SEAI grants
SEAI Grants for Wicklow Water Heating Upgrades
Grants are available for solar water heating (up to €1,200) and heat pump installation (up to €12,500). Both need a compatible twin-coil cylinder, so a cylinder upgrade is often the first step, and work must be carried out by an SEAI-registered contractor before any grant can be claimed.
A fabric-first upgrade makes the biggest difference to running costs, and SEAI-registered insulation contractors covering Wicklow are listed at wallinsulationireland.ie.
See SEAI-registered plumbersHiring
How to Find a Plumber for a Cylinder in Wicklow
A cylinder swap is standard plumbing work, but an unvented unit needs a competent installer. Here is how to hire correctly in Wicklow.
Browse Plumbers in Wicklow
Browse local plumbers across Wicklow, find someone near you, and contact them directly. For an unvented cylinder, check that they hold the relevant competency, as mains-pressure units carry discharge and safety requirements.
Get Three Written Quotes for the Work
Quotes should name the cylinder make, its capacity in litres, whether it is single or twin coil, and any pipework, controls or discharge work needed. A quote without a stated capacity is incomplete, since sizing drives both comfort and the price you pay.
Confirm SEAI Registration if Claiming a Grant
A compatible twin-coil cylinder is part of any solar water heating or heat pump job. Where a grant is involved, the wider works must be carried out by an SEAI-registered contractor, so confirm registration before the cylinder is ordered.
Get Your Commissioning Paperwork and Warranty
An unvented cylinder must be commissioned with its discharge pipe, expansion vessel and safety valves set correctly. Keep the commissioning record and register the warranty, as most manufacturers require an annual check to keep cover in place.
Local coverage
Hot Water Cylinders Across Wicklow: Areas Covered
The Wicklow Mountains create a significant weather divide. Coastal Wicklow towns are relatively mild, but inland and upland areas experience heavy snow in winter and can be cut off during serious cold snaps. Properties in mountain areas like Blessington and Roundwood need comprehensive pipe insulation.
North Wicklow benefits from proximity to Dublin and has good coverage from both local and Dublin-based contractors. Arklow and south Wicklow have a solid local trade. The more remote mountain and west Wicklow areas can see longer wait times for specialist work.
Every area above is served by registered plumbers in the Wicklow plumber directory.
Common questions
Hot Water Cylinders in Wicklow: Common Questions
How much does it cost to replace a hot water cylinder in Wicklow in 2026?
A like-for-like vented copper cylinder replacement costs €600 to €1,100 in Wicklow, including labour and VAT. A full unvented mains-pressure install runs €1,200 to €2,200, upsizing or relocation is €900 to €1,600, and an immersion element and thermostat is €150 to €300.
Vented or unvented cylinder: which is better in Wicklow?
A vented cylinder is cheaper and simpler where a loft tank already feeds the house, but pressure depends on the height of that tank. An unvented cylinder gives mains pressure at every outlet with no attic tank, at a higher price and with stricter safety requirements. Wicklow homes with power showers and multiple bathrooms usually benefit most from unvented.
What size hot water cylinder do I need for my Wicklow home?
Sizing follows the number of bathrooms and occupants rather than the county. A one or two-bathroom Wicklow family home is typically well served by a 150 to 210 litre cylinder, while larger homes with several bathrooms move to 250 to 300 litres. Your plumber sizes the cylinder to peak demand so you are not left short or heating water you never use.
What are the benefits of a mains-pressure unvented cylinder in Wicklow?
An unvented cylinder delivers strong, balanced hot and cold pressure at every tap and shower in your Wicklow home, removes the need for an attic tank, frees up loft space and cuts the risk of tank freezing or contamination. The trade-off is a higher fit cost and a required annual safety check.
Is there enough mains pressure for an unvented cylinder in Wicklow?
Most homes on the public mains in Wicklow have enough flow for an unvented cylinder, but rural properties on a private well or a shared group scheme may not. Your plumber checks the incoming flow and pressure first, and where the mains is weak a vented cylinder or a pumped system is the better fit.
How do I find a plumber for a cylinder in Wicklow?
Browse local plumbers across Wicklow on plumbersinireland.ie and request quotes directly. For an unvented cylinder, confirm the plumber holds the relevant competency, as mains-pressure units carry discharge and safety requirements that a standard vented swap does not.
Get Hot Water Cylinder Quotes in Wicklow
Cylinder work in Wicklow, from vented swaps to unvented mains-pressure and twin-coil upgrades, matched to local plumbers near you. Free, no obligation, reply within 24 hours.
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