Hi Ariadna,
I would certainly recommend Hurlingham Developemts who have completed some excellent work for me. They are well eatablished in SW London and have done lots of projects in Battersea, Wandsworth, Fulham and Chelsea. They have their own teams as well which is more relable than firms that sub out the the work and hence are reasonably priced. Call Andy on 17739 174360 at
www.hurlinghamdevlopments.co.uk and dont foget to mention Nigel M:07787 160121 if you need any further help. I also have contacts for good architects as well.
Good Luck.
Kind regards,
Nigel
m:07787 160121