Same Day Covid-19 Tests in London

UK Government and Department of Health and Social Care (DSHC) listed same day Covid-19 testing from 2 central London clinic locations or self-administered home Covid test by courier delivery and pick up.

A reassuring, safe and reliable service giving you absolute peace of mind whether you are travelling internationally, doing a Test to Release or doing mandatory arrival testing in England.

Fit to Fly Covid Tests, Test to Release Scheme, Rapid Antigen Tests and Covid Antibody Tests available on demand with same day results.

For Day 2, Day 2 & 8 and Day 2, 5 & 8 Covid test packages for international arrivals to England please Click Here.

Private Covid-19 Testing Options

From £150







  • Appointments available Monday-Sunday.

  • Viral antigen swab test to determine if you currently have the virus.





From £120

  • 4 Covid Antibody Test Options:

    • Abbott (IgG)

    • Roche (IgG +IgM)

    • Roche SPIKE (before/after vaccination to assess vaccine response)

    • Virtus SPIKE (before/after vaccination to assess vaccine response)

  • Blood sample taken in clinic by GP

  • Results within 24-48 hours

  • Price all inclusive of costs of test, GP appointment and blood draw

Not sure which test you need?

Send us an email or give us a call and we would be happy to go through all our Covid-19 testing options with you.

At One5 Health we offer same day bookings for private Covid-19 Coronavirus testing from our Central London clinic locations or from the comfort of your own home. We provide both ​viral Covid-19 RT-PCR antigen swab testing, to know if you currently have the virus, as well as the Abbott and Roche antibody blood testing to know if you have had past exposure to the Covid-19 virus.

We now also provide the coronavirus rapid antigen test which can tell you if you currently have covid-19 within 15 minutes of doing the test.

If you are travelling abroad in the near future and you need a TRAVEL COVID RT-PCR TEST CERTIFICATE then you must have the Covid-19 RT-PCR swab test done either in clinic or at home by video call in order for us to check your identification and issue this certificate to you.


We will work closely with you to organise the timing of your test according to your flight schedule and the specific Covid-19 immigration rules for the country you are travelling to. 


What is the difference between the PCR and Antibody test?

The covid PCR test tells you if, at the point of doing the test, you are positive or negative for covid 19. 

The antibody test tells you if the recent past you have had exposure to covid 19 AND have developed antibodies against it. A negative covid antibody does not mean you have not had covid-19 before it simply means you do not have antibodies against it at present.

What covid test do I need for a Fit to Fly Certificate?

The covid test required for travel is always the Covid RT-PCR swab test. This test must be negative in order for you to travel safely. There are very few countries that will require an antibody test in addition to the RT-PCR test. There are no countries or airlines that just require a covid antibody test. If you are unsure about which covid test you need for travel, please do not hesitate to get in touch with us. 

Covid Testing Frequently Asked Questions (FAQs)


How much does a Covid-19 test cost?

We are pleased to have the widest range and best priced Covid-19 tests of any London clinic. Please visit the booking page for a full list of tests, prices and availability. Some of our most popular tests are: PCR Test - from £180 Antigen Test - from £100 Antibody Test - from £120

How do I book a Covid-19 test?

All tests are booked online here. Simply select the covid-19 test that you require and then pick a clinic location, time and date. Once you have booked you will receive an email confirmation of your appointment.

Where can I get a Covid-19 test?

All our tests are carried out at one of our two central London clinics, staffed by highly trained doctors. To select a location, simply visit the booking page. Choose the type of test which you require and it will show you all the available clinic locations and times.

Can I change or cancel my test?

You can change your test free of charge. If you cancel with less than 48 hours until your appointment there will be no refund available. We are not able to make changes or refunds after you have taken the test. To change or cancel your test please follow the instructions in your covid test confirmation email.

Results & Certificates

When will I get my results?

Different tests have different turnaround times. These are explained at the time that you book your Covid-19 test. You will receive your results and doctor's certificate by email within the specified timeframe. We currently offer the following options for results: RT-PCR - Same day results if test appointment is before midday, next day results if test appointment is after midday Rapid Antigen Test - within 1 hours Antibody (laboratory) - within 24 hours Unfortunately we are unable to speed up your results once you have taken your test.

What information is in my results certificate?

You will receive your doctor's certificate as soon as your results are ready. This will include:

  • Name
  • Date of Birth
  • Gender
  • Address
  • Passport / ID (if provided)
  • The test type. For PCR this will be: SARS-CoV-2 (COVID-19) RT-PCR Test
  • The date and time that the swab sample was collected
  • The result and date
  • Guidance from a doctor advising on your suitability to travel, based on the result of this test.
  • Doctor's signature and GMC number
  • One5 Health contract details and logo
For PCR tests you will also receive a separate results certificate produced by the laboratory themselves. This includes:
  • Name
  • Date of Birth
  • Passport / ID (if provided)
  • Test type & methodology
  • Sample reference
  • Sample collected date
  • Reported date
  • Results
  • Details of the laboratory

Are results affected by weekends?

No, you will still get your results in exacly the same timeframe, regardless of which day of the week you have your test. Our laboratories and support team operate 7 days per week.

Can I have my passport number on my results certificate?

Yes. Many countries require your passport number to be present on your test results certificate. We will request a copy of your passport prior to doing the test.

Can I get my certificate signed by a doctor?

To ensure the fastest possible turnaround, your results and doctor's certificate will be emailed to you. Our doctor's letters are on a One5 Health headed document and include the signature and GMC number of our medical director. We have had very few requests for paper copies or stamps. Should you require one of these then we can arrange it to be stamped or signed at one of our London clinics at no extra charge. If you require this please let us know once you have received your results. Please allow an additional 24 hours to arrange printing and signing of your certificate. We only have a limited number of London locations where you can collect a certificate from. We will be able to advise you on your options depending on the day your results are available.

Can I get a certificate without a test?

No. We are only able to issue doctor's certificates for tests which have been booked with One5 Health. We will not be able to provide a certificate for a test that is done through the NHS or any other private provider.

Covid Test Details & Timings

How will my test be taken?

PCR tests require a swab to be taken from the back of your throat and nose. It can be a little uncomfortable but should not hurt. This can either be a guided self swab or taken by one of our doctors. Antibody and Antigen tests will always be carried out by a healthcare professional.

I need a negative test for my flight. When should I take the test?

Different airlines and countries have different requirements regarding when a test must be taken. Many require a negative PCR test to have been carried out no more than 72 hours before a flight, but please check the government's foreign travel advice for your destination to establish their exact requirements. Please be aware that a very small proportion of tests will return an inconclusive result and will require retesting. We do therefore advise you take your test as soon as permitted for your trip. For instance, if you require a test taken not longer than 72 hours before your flight at 1pm on 10th May, the optimal time to take your test would be at approximately 2pm on 7th May.

I need a Covid test for travelling. What test should I get?

The majority of countries require a PCR test. We offer PCR tests with both same day and next day results. This is the gold standard of Covid-19 testing. A few countries will accept antigen lateral flow tests, but please check the requirements for your destination country.

Can I have a test if I have Covid-19 symptoms?

If you are experiecing any symptoms that you feel might be covid-19 then you can book an at home test. There are multiple delviery options for at-home self tests. Please see the at home covid testing page of the website.

What type of PCR tests do you offer?

PCR is the PHE approved, gold standard Covid-19 test. This is a SARS-CoV-2 (COVID-19) reverse transcriptase real-time PCR swab. We work with 2 different laboratory partners to guarantee that we will always have a supply of tests.

What's the difference between an PCR swab, antigen and antibody test?

A PCR is the gold standard test to determine whether you currently have Covid-19. This is the test which most countries require for entry purposes. An antigen test, also called a lateral flow test is also used to check for current infection. This has the advantage of being quicker and cheaper than a PCR test, but can be less accurate at lower viral loads. An antibody test looks to see whether you have had the virus in the past. Antibodies are believed to confer a degree of immunity to the re-infection by the virus. If you require your test for travel purposes, please check the latest requirements for your destination country before booking.

What is the Covid-19 policy for my particular country or airline?

Different countires and airlines have different policies and they are changing frequently. To ensure that you have the most up to date information, please contact your airline or review the latest government's travel advice.

What type of antigen test do you offer?

One5 Health have selected the Healgen Scientific Covid-19 antigen test. This is available from £120 and is one of the 3 UK Public Health assessed antigen tests with a sensitivity of 96% and a specificity of 99% compared with PCR. Some countries will accept this test as a condition for entry such as the USA and Italy (as of February 2021), in which case it is significantly cheaper and quicker than PCR. However, the majority of places still stipulate PCR so check the requirements for your country before booking as a fit to fly certificate. A healthcare professional will take a swab from your nose and carry out the point of care test. You will receive your results and doctor's certificate by email within 3 hours. Please note that this test is not suitable for children under 5, who should have a PCR test instead.

Can my child have a COVID-19 test?

We can carry out PCR tests on young children. All of our doctors are highly trained in taking swabs from children of any age group. We are unable to carry out our rapid antigen tests on children under 5 years old. Children under 5 should have a PCR test.

Do your tests detect the new UK variants of Covid-19?

Yes, all our test partners have confirmed that their sensitivity and specificity is unchanged with regards to the new Covid-19 strain in the UK. They will not however differentiate between whether you have the "pre-existing" or novel strain.

Do you do postal tests?

We offer an at-home testing service. Please see the Home Covid Testing page of our website. There are three different delviery options but we recomend rely on our courier service rather than Royal Mail to ensure postal kits are received back in the laboratory as quickly as possible. Given the critical importance of fast results and correct swab technique we do not entrust your test sample to the postal system. Samples can be taken in one of our two medical centres located in central London. We then have our team of in house couriers who collect them to take to the laboratory. In this way we are confident we can offer the highest level of accuracy and reliability for your Covid test.

What covid test do I need for a Fit to Fly Certificate?

The covid test required for travel is almost always the Covid RT-PCR swab test. This test must be negative in order for you to travel safely. There are very few countries that will require an antibody test in addition to the RT-PCR test. There are no countries or airlines that just require a covid antibody test. Some countries have started to allow rapid antigen tests but you will need to double check exact entry requirements on the UK government website. If you are unsure about which covid test you need for travel, please do not hesitate to get in touch with us.

Test To Release

What is the Test to Release scheme?

Test to Release is a government scheme to enable people arriving in the UK to reduce the amount of time for which they must self isolate. The government have appointed One5 Health as an official Test to Release provider. Anyone who arrives in England from outside the UK, Ireland, the Channel Islands or the Isle of Man needs to self-isolate for 10 days. Under the Test to Release scheme, you can choose to pay for a private Covid-19 test after you have been in England for 5 full days. If the test result is negative then you can stop self-isolating immediately. For instance, if you arrive in the UK on Monday then Tuesday would be your first full day in the UK, and you cannot take the test for Saturday. If you require Test to Release, then please ensure that you select Test to Release as an appointment type on the booking page or it will not be accepted by the goverment.

Can I get a test to reduce my quarantine when returning to the UK?

One5 Health is an official provider for the government's Test to Release programme. If you wish to shorten the amount of time you need to self isolate then please visit our Test to Release page for details.