Leylandii hedge pruning
We have been in our house for 10 months now and we have inherited two 50ft Leylandii hedges either side of the garden. They are necessary as a wind break as we have open farmland either side. I have been waiting for a gardening firm to come and trim them back but they haven't turned up so I have decided to have a go myself.
My questions are: is it too late in the year to do this? (the weather is quite mild), and,
Will I be able to get the lovely flat finish that I see on other hedges or do they require long term care to achieve that?
Birds use the hedges for nesting, so I don't want to disturb them during the spring.