I had a good experience with peek a baby in Mitcham ☺️
I had a number of private reassurance scans at Motherscan in Raynes Park - they also do gender scans and are lovely
I used window to the womb in chessington for a reassurance scan at 8 weeks, the a gender reveal at 16 weeks and then a 4D one at 28 weeks 😅 every session was great!
UltraSoundPlus just over the Kingston bridge amazing there https://ultrasoundplus.co.uk
I used The GP surgery in Wimbledon and would recommend them. https://www.thegpsurgery.co.uk/doctor/private-ultrasound-scan-london/
I also went to ultrasound plus, and highly recommend it :)
We used Window to the Womb.. it does not come across as the nicest place, but they were really nice when we were there