An annual boiler service costs £96 to £120 and keeps your boiler safe, efficient and within its manufacturer warranty. A Gas Safe engineer cleans the condensate trap and magnetic filter, services the heat exchanger, and runs safety diagnostics. Regular servicing lowers running costs, catches faults early, and is usually required to keep your warranty valid.
It is easy to forget about your boiler when it is quietly doing its job, but a yearly service is one of the simplest and most worthwhile things you can do for your home. It keeps your heating safe, helps it run efficiently, protects your manufacturer warranty, and catches small problems before they turn into expensive breakdowns. Here is exactly what happens during a service and why it is worth booking every year, wherever you are across Cardiff, Caerphilly and the surrounding areas.
What Happens During a Service
A proper service is more than a quick glance at the boiler. When we service yours, we work through the parts that quietly cause problems when they are left, and we finish by confirming the whole thing is running safely.
- Clean the condensate trap and magnetic filter: We clean out the condensate trap and the magnetic filter where one is fitted. These collect the debris and sludge that build up over time, and clearing them keeps the system flowing freely.
- Clean and service the heat exchanger: The heat exchanger is the heart of the boiler, and we clean and service it so the boiler keeps burning cleanly and transferring heat efficiently.
- Run safety diagnostics: We carry out a full set of diagnostic checks to confirm the boiler is operating within safe working limits, checking pressures, flue readings and controls.
- Issue a service record: We leave you with a record of the work carried out, which is your proof that the boiler has been serviced by a Gas Safe registered engineer.
If we find anything that needs attention, we will always tell you honestly rather than leaving you guessing, so you can make a decision with the full picture in front of you.
Safety Comes First
The most important reason to service your boiler is safety. A boiler that is not running correctly can produce carbon monoxide, a gas you cannot see, smell or taste. An annual service by a Gas Safe registered engineer is the surest way to confirm your boiler is burning cleanly and venting safely.
During the safety diagnostics we check that the boiler is operating within safe limits and that the flue is clear and working as it should. If anything is not right, we make it safe and explain clearly what needs doing. Your family's safety is the foundation of everything we do, and it is never something we rush.
Is Your Boiler Service Due?
Call Book Your Boiler on 07894 080 679. A full annual service starts from £96, carried out by Gas Safe registered engineers across Cardiff, Caerphilly and South Wales.
Call to Book a ServiceEfficiency and Lower Bills
A clean, well-serviced boiler runs more efficiently than one that has been left for years, and that efficiency shows up on your energy bills. When the heat exchanger is clean and the filter is clear, the boiler does not have to work as hard to heat your home.
- Less wasted energy: A boiler burning cleanly converts more of your gas into useful heat, so less is wasted.
- Steadier heating: A serviced system heats more evenly and reliably, so you are not nudging the thermostat up to compensate.
- A small cost that pays off: The cost of a service is modest next to the savings of a boiler that runs at its best and avoids a major breakdown.
Keeping Your Warranty Valid
If your boiler is still under its manufacturer warranty, an annual service is usually a condition of keeping that cover in place. Most manufacturers require the boiler to be serviced every year by a registered engineer, and if you skip a service you risk invalidating the warranty just when you might need it.
We carry out the service and leave you with a record of the work, so your cover stays valid and you have the paperwork to prove it. It is a small annual job that protects a much larger investment, and it means that if something does go wrong, you are not left footing a bill the warranty should have covered.
Catching Faults Early
Most boiler breakdowns do not happen out of nowhere. There are usually early signs, and a yearly service is the perfect chance to spot them before they leave you without heating on a cold morning.
- Small problems stay small: A worn part or a slow leak caught during a service is a quick, low-cost fix rather than an emergency call-out later.
- Fewer surprise breakdowns: Regular servicing dramatically reduces the chance of your boiler failing when you rely on it most, in the depths of winter.
- Honest advice: If we notice something starting to wear, we will tell you, so you can plan ahead instead of being caught out.
We also build ongoing care into our service. We set up annual reminders so you never have to remember when your service is due, and we attach a barcode to your boiler so you can report any issue to us in seconds. That little bit of extra care is what keeps our customers coming back year after year.
Frequently Asked Questions
We recommend servicing your boiler once a year. An annual service keeps your manufacturer warranty valid, helps the boiler run safely and efficiently, and catches small issues before they turn into expensive breakdowns. Autumn is a popular time to book, so your boiler is ready for the demands of winter.
An annual boiler service costs between £96 and £120 depending on the make and model, and we confirm the exact price when you book. It is a small cost that protects your warranty, keeps your boiler running efficiently and helps you avoid much larger bills from an avoidable breakdown.
Usually, yes. Most manufacturers require a boiler to be serviced every year by a registered engineer to keep the warranty valid. We carry out the service and leave you with a record of the work, so your cover stays in place and you have the proof you need if you ever make a claim.
Yes. We set up annual reminders so you never have to remember when your service is due. We even attach a barcode to your boiler that lets you report any issue to us in seconds, which is all part of the ongoing care we build into looking after your home.