People talk about Germany being dependent on gas but for heating I think they're about 50% gas while in the UK it's more like 80% and the UK is far behind in insulating homes to be cheaper to heat.
Combine with a government that doesn't actually want to help (which may explain why the houses are so expensive to heat in the first place) and it'll hit much harder.
Combine with a political system designed to let a minority keep control plus Brexit and things could get bad.
Note, I don't think the problem is unsolvable, I just think a lot of the people responsible for solving it will be looking for ways to make themselves money from the chaos.