Spartan Junipers - take a look at mine.

http://www.growsonyou.com/photo/slideshow/332616-spartan-junipers/member/bathgate

These have been though hurricanes, blizzards, tornadoes. Birds like to nest in the branches. Very tough and fast growing - they don't like wet feet. They don't get too big - about 25 feet, have a tidy growth habit, low maintenance, no pruning, drought tolerant, narrow profile & it always smells like Christmas! You can use the berries in the kitchen to flavor meats & such - or make Gin!

Consider Yew (Taxas baccata) - it makes a dense, evergreen hedge, and when well kept, can look like a green wall. Will need trimming a couple of times a year though.

Also from my recent experience trees of choice will be based on soil type and what likes damp or dry conditions and what the wind exposure will be, check with your local garden centre, I've been trying to screen against growing wind turbines and because of heavy wet soil and exposed conditions I've been limited to what likes those conditions, you have my sympathies, such an intrusion.

If privacy will be important remember the regulations re hedge height between neighbours - 8 feet in most places, maybe 6 in others. If this will be an issue you might consider planting some trees away from the hedgeline but between you and the houses. Sending you lots of sympathy.

Thank you for all your comments I realise in England conifers are a no no, but I know I can plant different species, I love the laurel hedge which is there now so was thinking of planting trees in the garden, creating features rather than a straight boundary, I know I will have to position them correct to afford the most privacy just wondered which other than Cyprus stay green, garden is an acre so height not a problem, I am south facing, it is windy most of the time, quite light soil and invaded by rabbit's (-tree guards needed!

Conifers are not a no no for hedges - the one everyone objects to and which causes enormous arguments is Leyland Cypress, which is a very fast growing, very, very tall tree - other conifers are much better behaved, and can vary in height between 2 feet and everything upwards from that, with much slower growth rates. Thuja plicata is often used these days instead of Leylandii, because its much better behaved.

Larger evergreen shrubs include Aucuba japonica (spotted Laurel), Elaeagnus, Osmanthus, Pyracantha, Ligustrum (privet), Escallonia, Mahonia, Fatsia japonica, Crinodendron hookeranium (for shady damp spots), Griselinia littoralis and Pittosporum varieties (provided you're not in a really cold part of the UK), and green leaved Berberis varieties (the coloured leaf ones are deciduous).

Thank you bamboo for your suggestions, the garden is full Sun and south facing and as only fields at the back us open, therefore this creates the wind, as it blows over the fields with no deterrents in its way, as the houses are all being built along the side any trees I plant will only cause shadow for a small part of the day as the Sun moves round early in the morning, it is the privacy i want not being overlooked, hence the tall evergreen variety, after having an ooen view I really dont want to sit out looking at a row of roofs and windows