Start your journey


Home test

Includes booking reference number, required for passenger locator form.



Lateral Flow Test

Perfect if you need an antigen test for Fit to Fly Certification.

Results will be available in 15 minutes.



PCR Test

A negative test means you're released on day 5 rather than day 10.



In clinic testing

Book this before you travel to obtain your Test Booking reference Number (passenger locator number)



 PCR Test

Visit one of our clinics where a trained healthcare professional will collect your sample.



Antibody Test

Ideal for detecting antibodies to the COVID-19 virus, to check if you have had the virus before.



PCR Test

Results next day and immediate release from quarantine following negative test result.



PCR Test
This is our most used service for rapid certified results.

Results in just 3 hours!



 PCR Test

Visit one of our clinics where a trained healthcare professional will collect your sample.



Kids go half price with our family packages.


Fit To Fly and Test To Release. 



Why Choose MSI Clinics?

We're committed to helping our clients get to where they want to go. As a UKAS accredited, government listed private provider we specialise in a wide variety of COVID-19 tests for families, individuals and organisations. Our private clinic spaces offer a discreet, caring and highly professional service, 7 days a week.


Our swiftest service delivers your test results in just three hours, allowing you the opportunity to focus your mind solely on your upcoming journey or release. 

Peace of Mind

Accuracy assured. All PCR tests are processed by our UKAS accredited labs.

Caring Professionals

Our team of healthcare professionals are highly skilled in working with people of all ages. The safety and comfort of our clients is our number one priority.


Choose from our two welcoming boutique clinic spaces based in London Bridge and Chelsea.


4 step


Book now

Select your appointment time via our user-friendly online booking system.


Visit the clinic

Be warmly welcomed upon your arrival.


Sample collected

Our healthcare professionals will guide you through a short consultation process, including a temperature and identification check.


Receive results

Your results will be processed and delivered to you electronically within the promised timescale.

Find out

what our clients are saying about us

Based on 101 reviews.
Lisa Young
Highly recommend Could not recommend this clinic enough! I was so nervous (stupid, I know) but they made me feel totally at ease. They spoke to me a little about what was going to happen and distracted me talk about other things too. They were so efficient and pleasant. Not important but the building they were in and their space was so clean and added to the pleasant experience.
James May
This is a high class clinic with high… This is a high class clinic with high class service. Excellent staff. Prompt responses and always go the extra mile. Sure they’re expensive, but you get what you pay for.
Good place for fast Covid-testing Friendly, professional, fast, nothing negative with exception of the costs...
Joy Crookes
Hospitable and quick experience Ulfet was professional, lovely, quick and a pleasure to be looked after and tested by! I always hate getting tested because of how uncomfortable I feel but Ulfet made sure I was comfortable and calm before testing me. Will be visiting again when needed!!
It was easy fast and reliable and the… It was easy fast and reliable and the technician was amazing!!
Always helpful! I always find the assistants (Eva this time) who always response my email in timely and helpful manner. I can feel the willingness to help. Much appreciated!
Awesomeness Awesomeness
Sarah Goschy
We were in a pinch after trying three… We were in a pinch after trying three pharmacies who could not provide an antigen Covid test in time for our international flight out the next day. Eva and MSI were our saving grace! Easy and accurate. Thank you!
Sally Lovegrove
Excellent service delivered exactly as… Excellent service delivered exactly as stated! Clean, friendly clinic and very easy to find. Good opening hours that allow flexibility with work and NHS staff discount!!
Amazing experience far better than… Amazing experience far better than other providers what sets them apart is their customer service and turnaround time such good service from the outset right through to dealing with any questions with the forms and results. I used them for a fit to fly to Canada, no issues with being accepted would use again.