Start your journey


PCR Test

Fully vaccinated arrivals from amber list countries no longer need to quarantine but are required to undergo a Day 2 PCR Test.



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

Results in just 3 hours!



PCR Test

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



PCR Test

International UK arrivals must take the government-mandated day 2 and 8 PCR tests. You must book these before you travel to obtain your passenger locator number.



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



 PCR Test

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



PCR Test

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



PCR Test

International UK arrivals from a Green list country don't need to quarantine, but must take the day 2 PCR test. Book this before you travel to obtain your passenger locator number.



Lateral Flow Test

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

Results will be available in 15 minutes.



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 78 reviews.
Jan Johnson
Excellent service, I cannot rate it high enough. I had a test with another clinic and they didn't give me the test I needed (PCR) to fly with Singapore Airlines so I had to quickly get another today (the day I am flying}. Every aspect of the process with MSI was easy and they met the three hour turnaround for the test. The lady I spoke to on the phone and the lady who carried out the test were both so friendly and helpful and no question was too hard or too much bother to answer. Thank you MSI you have put a big smile on my face after an awful day and night when I realised I didn't have the correct PCR test to fly with Singapore……. Later the same day I am now successfully through check in and if I hadn’t got the PCR test they would have turned me away - so if you are flying to Singapore only get PCR!
Good service Nice people, efficient service. Always got my results back on time
Helpful and friendly staff
Impeccable, would definitely recommend! Another provider never sent me my results so I had to take a 3-hour test before my flight. The results came in after 1 hour and a half, as I was on my way to the airport! Very impressed by the service received. I would like to give some praise to Lindsay✨, who was kind, patient yet very professional with me. I used other providers in the past and this was by FAR the best experience I've had. If you are debating to go with this one or another provider, take this as your sign!
Xiaohe Sun
Efficient Service Highly Recommended My fit-to-fly was messed up by Collinson, needed a fast test and found MSI online. Really convenient location and great service, result received in 2hours. It’s stressful times to travel, well worth the money to go for a fast test, for ease of mind and can carry on with travel planning. Highly recommend, will go back to them from now on.
Mr R Nash
Top class service. Away in France, I had trouble obtaining the correct reference number for my day 2 test booking, as required by HMG’s ‘Passenger locator’ form. MSI’s Lindsay was kind enough to email me and then, off her own bat, follow it up with a call on Saturday evening, just to make sure I had everything I needed. Very good service!
Eleanor Morgan
Excellent service. Clinic in a convenient location near London Bridge Station. Lovely healthcare professional. I booked with MSI because the reviews were excellent & I wanted a quick result for travel. Booked the 3 hour Fit to Fly. Results returned in 1.5 hours. Excellent.
Timely and reliable Covid test! Timely, professional and friendly service! I needed a PCR fit to fly test before my wedding trip, so was extra keen to find a reliable provider as I heard horror stories from friends in London whose tests didn’t arrive on time and they could not contact the provider directly. Each time I called I was immediately able to speak to an actual person, including on weekends, and my results arrived at the time I expected. The pricing was reasonable for London as well. Highly recommend.
Fantastic clinic to use, the staff was polite, friendly and everything from entering the clinic to getting my test took less than 5 minutes
Aiyun Guo
Staff really really nice and helpful. The result was out in only an hour as the lab was 5 min away. Really appreciate the great service!