I know it’s a bit late now, but may be worth taking out a monthly plan to cover any future failures. You can get different types, EDF charge around £13 a month with unlimited call-outs, others charge £3-5 with a call-out fee. We had an Ideal boiler and cover with British Gas, they got fed up of us calling them out 3 times a year, in the end they installed a new Bosch boiler for £1700, we got interest free credit over 2 years.
That is the way we are thinking, Botx top of the range Bosch combi boiler with 10 year warranty £2300, yesterday the carbon monoxide alarm went mad, had to call out the gas emergency services we thought we has a gas leak, turned out the carbon monoxide alarm was faulty it was 10 years old, the nice man checked everything was ok, fitted us a new carbon monoxide alarm.
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.