Immersion Thermostat Replacement Dublin
Need an immersion thermostat replacement in Dublin? We provide fast, professional immersion heater thermostat repairs and replacements for homes, apartments, landlords, and commercial properties across Dublin.
If your hot water has stopped working, is overheating, tripping the fuse board, or only heating occasionally, the thermostat could be faulty.

Is Your Immersion Thermostat Faulty?
A faulty immersion thermostat can cause overheating, no hot water, intermittent heating, or electrical tripping. In many cases, replacing the thermostat is far cheaper than replacing the full immersion heater.
Your thermostat may not be allowing the immersion to heat correctly.
Overheating or boiling water can indicate thermostat failure.
A faulty thermostat or wiring issue may cause repeated tripping.
An immersion constantly running can increase electricity usage.
We Repair & Replace
Our Safe Electric registered electricians carry common immersion thermostats in stock, allowing most repairs to be completed on the first visit.
- Standard immersion thermostats
- Dual immersion thermostats
- Economy 7 immersion thermostats
- High-limit safety thermostats
- Copper immersion systems
- Incoloy immersion systems
- Side-entry immersion thermostats
- Hot water cylinder thermostats
Thermostat Repairs for Common Dublin Hot Water Systems
We work on the most common immersion heater and hot water cylinder systems found in Irish homes, apartments and rental properties.
Standard Immersion Thermostats
Replacement thermostats for everyday domestic immersion heaters where hot water has stopped working or is heating inconsistently.
Dual Immersion Systems
Fault finding and thermostat replacement for sink and bath immersion setups, including boost and overnight hot water circuits.
Economy 7 Thermostats
Repairs for night-rate immersion systems, boost controls, timer-related faults, and off-peak hot water problems.
Our Thermostat Replacement Process
We diagnose the issue first, confirm the fault, and provide straightforward advice before replacing parts.
We inspect the immersion, thermostat, wiring, timer and switch controls.
The electrical supply is isolated and tested before repair work begins.
Where required, the faulty thermostat is replaced using quality parts.
The system is tested for safe operation, heating performance and reliability.
Economy 7 & Dual Immersion Thermostat Repairs
We also specialise in Economy 7 immersion thermostat replacements and dual immersion systems commonly found in Dublin homes.
If your night-rate immersion is not heating correctly or your boost function has stopped working, we can diagnose timer, thermostat, and immersion element faults.
Where required, we can also advise on digital timer upgrades and more reliable hot water control options.

Why Choose Us?
- Safe Electric Registered
- Fast Dublin callouts
- 5-star rated service
- Competitive pricing
- Fully qualified electricians
- Most repairs completed same day
- Genuine quality parts used
- Professional and friendly service
We understand how important reliable hot water is in your home. Whether your thermostat has failed completely or your immersion is overheating, we can diagnose and repair the issue quickly.
Thermostats, Immersion Switches, Time Clocks & Heating Element Repairs

24HR Immersion Heater Time Clock Dublin
The Powersaver Daily is a simple-to-use, multi-application time switch. It is commonly used for the control of water heating, but it can also be used to control panel heaters, security lighting, and combi boilers.
Price: €210
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Horstmann E7 (Economy 7) Immersion Timer Switch
Our Economy 7 Quartz timers provide reliable off-peak hot water control with programmable settings, battery backup, and automatic Summer and Winter time adjustment.
Price: €215
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APT Or Flash Immermat 24HR Immersion Time Clock
The Flash Immermat is a reliable immersion heater and boiler time clock designed for timed hot water and heating control. We replace and repair both Flash and APT timers for domestic hot water and heating systems.
Price: €150 – €190
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Sangamo Digital E7 24 Hour Electronic Immersion Heater Boost Timer
The Sangamo Powersaver Dual Flexi 2 is a modern digital immersion heater controller with programmable heating periods and boost functions. Designed for Economy 7 systems, it provides reliable hot water control and improved energy efficiency.
More info —>
Dublin Immersion Thermostat Specialists
We provide immersion thermostat replacement services throughout Dublin including:
- Dublin City Centre
- Clontarf
- Raheny
- Tallaght
- Swords
- Lucan
- Blanchardstown
- Dundrum
- Rathfarnham
- Castleknock
- Malahide
- Stillorgan
If you need an immersion thermostat replacement in Dublin, contact Immersion-Heater.ie today for a fast and professional service.