Your irritation is, of course, subjective - the noise being made may be acceptable to others and it may only irritate you.
The reason I mention this is because one of my neighbours absolutely loses the plot when I mow my lawn. I have a large garden and therefore have to use a petrol mower, and when I mow my lawn, which is always on a Saturday afternoon, she always hollers over the fence, whereas my other neighbour doesn't mind at all.
Mowing the lawn on a Saturday afternoon is completely acceptable practice and therefore the mad bitch may be a bit soft in the head, but the point I am (rather clumsily) trying to make is that the noise 'may' be within perfectly acceptable levels, but it just happens to annoy you.