Hi - I'd highly recommend David of Boutflower Brickcleaning (v. local) who was recommended initially by my next door neighbour. If you pm me I'll give you my address and you can take a look at his work on our house. Made a huge difference.
We used Grant at http://surrey-stone-stucco.co.uk/
They did an excellent job and sent us lots of addresses in London where they had worked previously for us to see if we wanted to.
We have a 3 story house and I seem to remember it costing around £8k
Thanks - good to have these recommendations. We are planning on going with Series A, as we have quite a bit of roof maintenance to do at the same time. They have good reviews on here for roof work so hopefully also equally good on the pointing. Will report back!!