Arranged an appointment in morning; received a call at 13:00 to inform me that engineer would be late! A further call at 16:15 informed me engineer would arrive in half hour. Engineer arrived at 18:15 and then, after half hour and which cost me £154.50, was told the boiler problem would need a more professional assessment than he could offer! Problem unresolved and I'm left absolutely seething and disgusted! Avoid like the f***ing plague!