UKAS Accredited Labs
All tests are processed in UKAS-accredited laboratories ensuring accuracy.
Private STI Testing in Marylebone
Sexual Health ClinicGet private STI testing at our Marylebone clinic on Great Portland Street. Choose comprehensive sexual health screening or individual tests for HIV, chlamydia, gonorrhoea, herpes and other common sexually transmitted infections.
Appointments are usually available same day or the following day with results usually typically returned within 2-3 working days. All tests are processed by UKAS-accredited laboratories, ensuring reliable results.
After purchasing your test online, you will receive a booking email allowing you to choose a convenient date and time. Should any result come back positive, our doctors can provide private treatment.
Quick Appointments
Fast Results
UKAS Accredited Lab
Confidential
Have any Questions?
Call or email our team Mon-Fri 9am-5pm.
Complete STI Screen
Our most comprehensive sexual health screening package. Get tested for all common STIs with fast, confidential results.
Tests for 12+ STIs including HIV, Chlamydia, Gonorrhoea, Herpes, Hepatitis B & C
Results within 2-3 working days
Blood, Urine & Swab Screening
Treatment options available for positive results
£224
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Available STI Tests in Marylebone
HIV Blood Test | 4th Gen Private HIV Test
£77.00
Essential Plus STI Screen | Incl HIV, Hep, Chlamydia & Gonorrhoea
£147.00
10 STI Urine Screen | Fast & Discreet STD Testing
£116.00
Complete STI Screen | Blood & Urine Testing
£224.00
Chlamydia & Gonorrhoea Urine Screen | Fast STD Testing
£79.00
HIV, Hepatitis & Syphilis Blood Screen | Fast STD Testing
£129.00
Herpes Blood Test UK | HSV 1 & 2 Antibody Test
£177.00
Essential Plus Female STI Screen | Blood & Swab Tests
£147.00
Complete Female STI Screen | Blood & Swab Tests
£224.00
Chlamydia & Gonorrhoea Vaginal Screen | Swab STD Testing
£79.00
10 STI Vaginal Screen | Fast & Discrete STD Testing
£116.00
Routine STI Screen with Syphilis | HIV, Chlamydia & Gonorrhoea
£113.00
Female STI Screen with Syphilis | HIV, Chlamydia & Gonorrhoea
£113.00
Female STI Screen with Hep B | HIV, Chlamydia & Gonorrhoea
£111.00
STI Screen with Hep B | HIV, Chlamydia & Gonorrhoea Test
£111.00
Why Our Clients Choose Us
Trusted testing, clear answers and convenient care from a team that puts your wellbeing first.
Doctor-Reviewed Results
Every test result includes a doctor-written explanation so you can understand your results clearly.
Quick Appointments & Turnaround Times
Appointments are available as soon as the same day or following day, with most results delivered within 2-3 working days.
60+ Nationwide Clinics
Access clinics near you across the UK and Ireland.
Confidential
Your information and results are kept 100% private and do not appear on your NHS record.
No GP Referral Needed
Book a test directly and skip long NHS waiting lists, with no GP referral required.
About STI Test London
STI Test London provides confidential STI testing across the UK and Ireland. We work with UKAS accredited Randox Health and The Doctors Laboratory at 60+ sites across the UK and Ireland to help deliver accurate and reliable results.
Most tests are completed within 2-3 days, and test reports are reviewed by a qualified doctor. Treatment is available for most infections if necessary (additional cost applies). There are no long NHS waiting times or GP referrals required, and home testing options are also available.
GET RELIEF
GET RELIEF
STI Treatment
Positive tests for most infections such as chlamydia can be treated with oral medication.
Our partner Dokta GP Online GP Clinic can provide treatment when indicated.
STI Test London
STI Test London
Marylebone Clinic
Randox Health
143-149 Great Portland Street
Marylebone
London
W1W 6QN
Great Portland Street Station (Circle, Hammersmith & City, Metropolitan lines): 2 min walk
Regent's Park Station (Bakerloo line): 7 min walk
Oxford Circus Station (Bakerloo, Central & Victoria lines): 12 min walk
Bus routes 18, 27, 30 & 205 stop close to Great Portland Street Station
Bus routes 88 & 453 stop at Portland Place; 3 min walk
Q-Park Oxford Street on Cavendish Square: 12 min walk
Street Parking may be available but limited.
Opening Hours:
Monday: 7:00 am - 7:00 pm
Tuesday: 7:00 am - 7:00 pm
Wednesday: 7:00 am - 7:00 pm
Thursday: 7:00 am - 7:00 pm
Friday: 7:00 am - 6:00 pm
Saturday: 7:00 am - 7:00 pm
Sunday: 11:00 am - 5:00 pm
STI TEST LONDON