Hot Water Cylinders & Immersion Replacement Dublin
Is your hot press cylinder leaking, taking hours to heat, or tripping the immersion fuse? We replace aging uninsulated copper tanks with factory-insulated rapid-recovery cylinders, unvented mains-pressure Joule Cyclone systems, dual-element titanium immersions, and whisper-quiet Stuart Turner shower booster pumps.
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Pre-selected for Hot Water Cylinder & Immersion Replacement
Replacing an old copper hot water cylinder with a modern factory-insulated stainless steel or unvented cylinder in Dublin cuts standing heat loss by up to 70% and heats water in under 25 minutes. Standard cylinder or immersion element replacements are completed same-day with zero call-out fee.
What's Included in Our Hot Water Cylinders & Immersion Replacement Dublin Service
- Factory-insulated Grade 3 copper and Joule stainless steel unvented cylinders
- Dual-element (Bath/Sink) titanium immersion heater element & thermostat replacement
- Stuart Turner Monsoon & negative-head brass shower booster pump installation
- Pressurized system conversion (removing noisy attic tanks where suitable)
- Motorized zone valve, automatic air vent (AAV), and gate valve upgrades
- Safe drain-down, removal, and recycling of your old copper cylinder
Need Urgent Advice or Same-Day Dispatch?
Speak directly with our RGI engineering desk or fill in the 60-second quote calculator at the top of this page.
Our 4-Step Engineering Process
Hot Press Inspection & Sizing
We check your cylinder dimensions, coil type, and water pressure with zero call-out fee and give a fixed quote.
Controlled Drain-Down
We isolate cold feeds and boiler coils, draining your old cylinder cleanly via hose straight outside.
Cylinder, Immersion & Valve Upgrade
We install your new insulated cylinder, lever ball valves, new immersion element, and automatic air vents.
Airlock Purge & Thermostat Calibration
We purge all hot taps and showers of airlocks, set the cylinder thermostat to 60°C, and verify leak-free operation.
Frequently Asked Questions
Why is my immersion heater tripping the fuse switch or not heating water?
In Dublin's hard-water areas, limescale builds up on the copper immersion element until the sheath splits and causes an earth fault (tripping your RCD fuse), or the internal rod thermostat burns out. We can replace either the thermostat or the entire immersion element using a specialist box spanner without damaging your cylinder.
How long does it take to replace a leaking hot water cylinder?
A standard hot press cylinder replacement takes 3 to 5 hours from drain-down to hot water restoration. We stock standard Irish cylinder sizes for same-day emergency replacement.
Should I replace my cylinder or switch to a combi gas boiler?
If your home has 1–2 bathrooms and good mains water pressure, converting to a combi boiler eliminates the hot press cylinder entirely. For larger 3–4 bathroom homes with high simultaneous water demand, an unvented Joule stainless steel cylinder paired with a system boiler delivers superior flow to multiple showers at once.
Helpful Homeowner Guides & Cost Breakdowns
Ready to Book Your Hot Water Cylinders & Immersion Replacement Dublin?
Complete our quick online form for a fast callback and fixed price quote, or call our 24/7 dispatch line right now.