Evergreen or Conifer tree

Columnar conifers for you to check out:
Chamaecyparis lawsoniana 'Columnaris';Ginkgo biloba 'Fastigiata', Juniperus communis 'Compressa', Juniperus virginiana 'Skyrocket', Taxus baccata 'Fastigiata', Taxus baccata 'Fastigiata Aureomarginata' and Taxus baccata 'Standishii'

Thanks very much Bamboo...lots to have a good look at.....:o)

If you like the tall, very, very slim look then I'd recommend Cupressus Sempervirens. They often look better if there is more than one of them but they don't take up much space horizontally. I believe they are quite fast growing.

Also I'd mention that the Ginkgo biloba, although a conifer, is deciduous. I have found mine quite slow growing, I don't know what other people's experiences are.

I would loved to have recommended picea pungens hoopsii as it has fantastic steel blue foliage - I think they are stunning. However they are fairly slow growing and not narrow. I have seen narrow (ish) specimens of picea pungens koster which have similar blue foliage, but again they are not fast growing and I don't think you can tell whether a particular specimen will be narrow. If you want a second conifer that is allowed to be a bit wider they are lovely trees.

Certainly not all the ones I mentioned are fast growing, just the right shape - you can get round this a bit by buying a larger specimen in the first place, but Ginkgo is very slow, though worth having because it's more unusual than the others.

Thanks Weedfingers.....I think the hoopsii will be too wide, though it is beautiful! Our garden is about 24ft wide and about 60ft long, at the back is the side of a pub which has a beer cooler which over the summer months has been a constant annoyance blowing straight down the garden to the cottage. The publicans have now erected boarding to deflect the sound...this has worked but does spoil the back of the garden, so we are planning to trellis off the last 1/4 for veg etc and plant the tree in front of the trellis as a feature and also blocking off the most ugly piece of boarding. I have 2 blue arrow conifers already in the garden and think maybe a Skyrocket or mediterranean Cypress would be best.

Ive just seen the Picea Glauca Pendula on the internet and think this one may be the one......only 8ft wide..it is a columnar shape but with pendulous habit....and bluey, grey green.....:o)

I haven't seen Picea Glauca Pendula before - it is a lovely looking tree. I'm not sure what its growth rate is - if it is from the same family as hoopsii it might not be all that fast. It sounds like you are well on your way to blocking off the boarding though :) .