Boilers · Homeowner answer
How often should a boiler be serviced?
Once a year. Gas Networks Ireland recommends gas appliances are serviced annually in line with the manufacturer's instructions, and most boiler warranties depend on it. Oil boilers are serviced annually as standard practice.
An oil boiler that skips a year can soot up and waste fuel. A gas boiler that skips a year may still run, but nobody has checked the combustion is safe. A service is also when small faults get caught before they become January breakdowns.
What changes the answer
- the boiler's age and warranty terms
- whether it is gas or oil
- whether the property is rented
What you can check yourself
- find the date of the last service on the record or the sticker
- check the warranty paperwork for the service requirement
What to do next
Book the service before the heating season — late spring and summer are the easiest months to get a slot.
This page gives general information only. Christy needs to see your system — in person or from your photos — before he can give you firm advice or a price.