The water pressure in our house was down a bit. The hot water was taking even longer than usual to get to the taps in the kitchen so when the next door neighbours said they were going to get a plumber in we suggested a job share.
They phoned for him yesterday, to come today. He turned up on time. He was called Lucretio. He tinkered around cleaning things out for a couple of hours (nothing too complicated), serviced the water heater and then went on his merry way. He charged 50€ for about 2, maybe 2½hrs, work and the situation seems to be improved.
I recall it wasn't easy getting a plumber in the UK and that they were very expensive.