Why do boilers always break when it’s cold. Why is that? Is there a reason why you have to get a boiler service in mid winter? Why do they never break in summer? Is it, possibly, that they get used more in the winter and so the likelihood of them going wrong goes up accordingly?

I think this sounds feasible. There’s that thing, isn’t there, where as soon as you ask a question, the answer becomes immediately apparent. It’s weird. I know, personally, whenever I have a question and say it out loud, the answer comes to me. That is true of this situation too – the boiler service situation.

You should make sure that your boiler gets a servicing every year – at least. When I checked my boiler recently (when, in fact, it had broken), the little BG sticker on it said it hadn’t been serviced for EXACTLY  2 years. To the day. This is a true story. Do you like it?