Read the original article as posted on the official OFTEC Website.
During the British summer is when the majority of households look for technicians to service ur upgrade their heating systems, due to using it less.
OFTEC advises that you check to make sure that the technician you are letting into your house holds a valid certification for working on your heating system and urges homeowners to contact the certifying body OFTEC (for Oil Heating) or GasSafe (for mains gas) to check that the ID card offered to you, are indeed valid.
CB7 Oil & Gas 