1. The Hair Lounge, Westbourne Park
2. Adornment 365, Brixton
3. Aveda, Covent Garden
4. Errol Douglas, Knightsbridge
5. Afrotherapy, Edmonton
6. KHAIRMAX, Stratford
7. Zizuo Hair & Beauty, Lewisham
8. Forbes Cheveux, Tottenham
9. Philip Eric Hair, London, Paris, LA
10. Kannis Beauty, Surrey Quays
11. ODB Hair, Covent Garden
12. Sen Style Hair, Woolwich
13. Rootz / Devine Rootz, Enfield
14. Natural Gloe, West London
15. Nefertiti Hair & Beauty, Streatham
If you're looking for some all round great salons that offer a range of services, I'd recommend these places:
Naturally U, Hoxton
Junior Green, Chelsea
HoneyHand, Leytonstone
Hiiskuss Hair Studio, Camberwell