Expert Boiler Repairs & Servicing in Sligo

A boiler breakdown in the middle of an Irish winter is more than an inconvenience - it is a genuine crisis. With no heating and no hot water, your home quickly becomes uncomfortably cold, pipes are at risk of freezing, and daily routines grind to a halt. For families across County Sligo, where winter temperatures regularly dip below freezing and Atlantic storms bring prolonged cold spells, a working boiler is not a luxury - it is essential.

Our boiler repair and servicing team is available to diagnose and fix boiler faults across County Sligo. All of our engineers are RGI registered (Register of Gas Installers of Ireland) for gas work and qualified to OFTEC standards for oil boiler work. Whether your boiler is displaying an error code, making unusual noises, or has simply stopped producing heat, we have the skills and parts to get it running again.

What We Offer

We provide a comprehensive boiler repair service covering all the common - and uncommon - faults that affect oil and gas boilers in Sligo homes:

• Error code diagnosis - Modern boilers display fault codes when something goes wrong. We interpret these codes and trace the underlying problem, whether it is a faulty sensor, a failed PCB, or a blocked condensate trap.
• Ignition and flame failures - If your boiler will not fire up or keeps cutting out, we check the ignition leads, flame sensors, gas valves (or oil nozzles), and related components.
• Pump and valve failures - Faulty circulation pumps and diverter valves are among the most common boiler repairs. We replace these with quality parts and test the system thoroughly.
• Leaking boilers - Internal leaks from heat exchangers, expansion vessels, or pipe connections are diagnosed and repaired before they cause further damage.
• Noisy boilers - Kettling, banging, and gurgling noises often indicate a build-up of limescale or sludge, air locks, or a failing pump. We identify the cause and resolve it.
• Annual servicing - A thorough strip-down, clean, and safety check to keep your boiler running efficiently and extend its lifespan.

Oil vs Gas Boilers in Sligo

County Sligo has a mix of oil-fired and gas-fired heating systems. While natural gas is available in Sligo Town and some surrounding areas connected to the Gas Networks Ireland grid, the majority of rural properties across the county rely on oil-fired central heating. This means our engineers are equally experienced with both fuel types.

Oil boiler issues we commonly see include blocked nozzles, sooty heat exchangers, failed photocells, and problems with the oil supply line. Gas boiler faults often involve faulty gas valves, blocked condensate pipes (particularly in cold weather), and issues with the flue and ventilation.

Whatever type of boiler you have, the principles of safe, competent repair are the same. We diagnose the fault properly, explain the problem in plain language, give you an upfront price, and carry out the repair to the highest standard. If you are not sure whether to repair or replace your boiler, our guide on 7 signs your boiler needs replacing can help you make the right decision. We can also help you understand oil boiler vs gas boiler - which is better for your specific property in County Sligo.

When to Call a Professional

Some boiler symptoms are obvious - a complete loss of heating or hot water demands urgent attention. But there are subtler warning signs that your boiler needs professional attention before it fails completely:

• Intermittent operation - The boiler fires up sometimes but not others, or cuts out after running for a short period
• Unusual noises - Banging, whistling, or gurgling sounds that were not there before
• Yellow or orange flame (gas boilers) - A healthy gas flame should be blue. A yellow or orange flame indicates incomplete combustion and can produce dangerous carbon monoxide
• Increased fuel consumption - If you are using noticeably more oil or gas for the same amount of heat, your boiler is losing efficiency
• Error codes appearing - Even if the boiler resets and continues running, recurring error codes indicate a developing fault
• Black marks or soot (oil boilers) - Soot deposits around the boiler or flue suggest combustion problems

Carbon monoxide is an invisible, odourless gas that kills. If you suspect a carbon monoxide leak - perhaps a CO alarm has sounded or household members are experiencing headaches, dizziness, or nausea - open windows, leave the property, and call the emergency services immediately. Then call us to inspect and repair the boiler before it is used again.

The Importance of Annual Servicing

An annual boiler service is the single best thing you can do to prevent breakdowns, maintain efficiency, and ensure the safety of your household. During a service, our engineer will:

• Strip down and clean the burner assembly
• Inspect the heat exchanger for cracks or corrosion
• Test the flue and check for dangerous emissions
• Check all safety controls and thermostats
• Inspect seals, gaskets, and connections for leaks
• Test gas pressure (gas boilers) or oil pressure and spray pattern (oil boilers)
• Assess the overall condition and advise on any developing issues

A well-serviced boiler uses less fuel, produces fewer emissions, and is far less likely to break down during the coldest months of the year. Most boiler manufacturers also require annual servicing to maintain the warranty.

Get Your Boiler Fixed Today

Whether your boiler has broken down completely or you want to book a routine annual service, call us on 087 341 0745. Our RGI registered engineers serve all of County Sligo with transparent pricing and no hidden fees. We carry common parts on the van, so most repairs are completed on the first visit. Do not go another day without heating - ring us now.