Your oil boiler may need repair if it keeps locking out, will not fire up, makes unusual noises, produces smoke or soot, smells of oil, uses more oil than normal, or is not heating your home properly.
An oil boiler may keep locking out because of a blocked oil filter, burner fault, ignition issue, faulty photocell, nozzle problem, lack of oil supply, air in the oil line, poor combustion or a flue issue.
Yes. O’Byrne Services is OFTEC registered, giving customers confidence that their oil boiler is being serviced by a competent professional.
Yes. O’Byrne Services provides professional oil boiler repairs in Kilkenny and surrounding areas for homeowners, landlords and businesses.
Yes. We can inspect oil boilers that have stopped working and carry out fault finding to identify the cause. If replacement parts or further work are required, we will explain your options clearly.
It depends on the age, condition and fault. If the boiler is generally reliable, repair may be the best option. If it is old, inefficient or breaking down regularly, replacement may offer better long-term value.
Yes. Alongside oil boiler repairs, O’Byrne Services also provides annual oil boiler servicing to help keep your heating system safe, efficient and reliable.

When your oil boiler stops working, keeps locking out or is no longer heating your home properly, you need a fast, professional repair service you can trust. O’Byrne Services provides expert oil boiler repairs in Kilkenny for homeowners, landlords and businesses.
Based at Hebron Business Park in Kilkenny, our team has extensive experience diagnosing and repairing oil-fired heating systems. Whether your boiler has completely broken down or is showing early signs of a fault, we can inspect the issue, explain the problem clearly and advise on the best repair solution.
As an OFTEC registered service provider, O’Byrne Services carries out oil boiler repair work with care, accuracy and a strong focus on safe operation.
Oil boiler faults can be caused by several issues, from burner problems and blocked filters to electrical faults, oil supply issues, worn components or poor combustion.
Our repair process starts with careful fault finding. We do not guess. We inspect the boiler, check the relevant components and identify the most likely cause of the problem before recommending repair work.
Common oil boiler problems we investigate include:
Once we identify the issue, we will explain your options and let you know whether the boiler can be repaired, needs replacement parts or requires further work.
Our oil boiler servicing is designed to give your heating system a thorough check and clean. Depending on the boiler type, condition and installation, a typical service may include:
If your boiler requires a replacement part, we will advise you before carrying out any additional work.
A boiler breakdown can be stressful, especially during colder weather. O’Byrne Services provides dependable oil boiler breakdown support for customers in Kilkenny and surrounding areas.
We aim to identify the problem quickly and give practical advice on the safest and most cost-effective next step. In some cases, a repair may be straightforward. In others, a boiler may require replacement parts or, if it is old and unreliable, replacement may be the better long-term option.
O’Byrne Services is based in Kilkenny and provides oil boiler repair services across the local area. We work with homeowners, landlords, property managers and businesses who need reliable heating support from a local team.
From minor faults to full boiler breakdowns, we offer clear communication, practical repair advice and professional workmanship.
If your boiler has not been serviced recently, we may also recommend our oil boiler servicing to help improve reliability and efficiency.
Where a boiler is beyond economical repair, we can advise on oil boiler installations and suitable replacement options.