Oil servicing
Annual oil boiler service across the Mendips
An oil boiler runs longer and cleaner between services than a gas boiler — but when it goes wrong it's messier. An annual service catches wear before it becomes a lock-out on a cold Sunday.
For: Mendip homeowners on oil
What OFTEC actually wants to see
Nozzle changed, burner cleaned, electrodes gapped, oil filter changed, combustion analysed and recorded. If any of those steps aren't in the service record, it wasn't a proper OFTEC service.
Every oil service we do
- Full burner strip and clean
- New manufacturer-spec nozzle fitted
- Oil filter and (where fitted) Tigerloop serviced
- Combustion set with analyser and logged
- OFTEC record card issued, warranty preserved
Frequently asked
- How much oil does a service save?
- A properly serviced Vortex or Firebird runs 3–7% more efficiently — meaningful money over a winter.
- Do I need to be home?
- Ideally yes for the boiler start-up test, but we can work with keyholders or letting agents.
- Does it keep the warranty valid?
- Yes — annual OFTEC servicing is a warranty condition on Grant, Warmflow and Firebird ranges.
Book the annual
Tell us your boiler make and roughly when you last had it serviced. We'll book a slot and put you on annual reminders after.
Related solutions
Core services
Where we cover
Worcester Bosch Accredited · 10 Year Guarantee*
New Worcester boiler with a 10 year guarantee*
Free no-obligation quotes for installation, servicing & repairs across BA & BS postcodes.