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Rated 1 out of 5 stars

Needed a same day unfit to fly during doctors certificate, filled in the form, paid the 50 quid, and …. nothing … reached out 7 hours later to be told more info was needed (which I don’t have) , but t... See more

Company replied

Rated 5 out of 5 stars

I had a serious respiratory infection whic prevented us going on our walking holiday. I didn’t see my GP because I’m used to managing my own treatment. I sent Merlin a health report from my smartwatch... See more

Rated 5 out of 5 stars

I was supposed to fly out to Spain for a family holiday, but I started feeling really unwell. I couldn’t get a GP appointment in time and was panicking about getting a certificate for my insurance cla... See more

Rated 5 out of 5 stars

Needed a medical certificate to take part in a cycling event in France. Had made enquires with my local GP and told this would be over £100 and take 4 weeks. Found Merlin which weee superb in pr... See more

Company replied

Company details

  1. Medical Certificate Service
  2. Local Medical Service
  3. Medical Center
  4. Medical Group

Written by the company

At Merlin Health, we provide you with same-day medical certificates, sick notes, referral letters and more. All from the comfort of your home and without a need for an appointment. Our services include pregnancy fit-to-fly certificates, chickenpox fit-to-fly certificates, sports medical certificates, visa medical certificates including the non-lucrative Spanish visa, unfit to fly and travel cancellation letters, private sickness letters for work and university, and much more! Our team is led by experienced doctors who provide a quick, efficient and same-day service.


Contact info

4.4

Excellent

TrustScore 4.5 out of 5

45 reviews

5-star
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1-star

Replied to 100% of negative reviews

Typically replies within 24 hours

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Rated 5 out of 5 stars

After falling off a ladder a few days…

After falling off a ladder a few days before our flight to Spain and fracturing my ribs, I was in no state to travel. I found Merlin Health online - got in touch and James was excellent at answering my queries. My insurer just accepted my medical certificate and claim today, excellent service

April 23, 2026
Unprompted review
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Rated 5 out of 5 stars

Unfit to Travel

I needed an unfit to fly certificate after picking up a nasty chest infection whilst on holiday in London, the process was quick and James patiently answered all question I had via email. I have now managed to rearrange my flight and would highly recommend.

April 15, 2026
Unprompted review
Rated 1 out of 5 stars

Merlin health is about as magical as a dead badger

Needed a same day unfit to fly during doctors certificate, filled in the form, paid the 50 quid, and …. nothing … reached out 7 hours later to be told more info was needed (which I don’t have) , but they didn’t bother telling me until I reached out after 7 hours, which for a same day service is useless, but not as useless as their dysfunctional customer service, threatened chargeback to get money back … Merlin health? They’re not magic they’re just rubbish … used a lnother online service with a zoom appointment with a real GP who were able to issue … avoid Merlin Health!

April 13, 2026
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for taking the time to leave a review — we’re sorry your experience didn’t meet your expectations, though we do feel it’s important to share the full picture.

Having reviewed your case, your application included no supporting medical evidence. These certificates are used to support travel insurance claims and other significant purposes, and as a responsible and ethical provider, we simply cannot issue them without confidence that the grounds are legitimate. It wouldn’t be right for our patients, for insurers, or for the integrity of the service.

Our team reached out to give you the opportunity to provide additional evidence. Sadly, that request was met with abusive and profane language directed at our staff, who work hard to help every customer they can.

Regarding the chargeback: we want to be clear that no threat was needed. We have a straightforward policy — anyone we’re unable to issue a certificate to receives a full refund, automatically. It was already on its way.

We truly hope you got the help you needed elsewhere. Unfortunately, there’s no certificate we can issue for abusive behaviour — but a little kindness goes a long way. We wish you a speedy recovery :)

Rated 5 out of 5 stars

I had a serious respiratory infection…

I had a serious respiratory infection whic prevented us going on our walking holiday. I didn’t see my GP because I’m used to managing my own treatment. I sent Merlin a health report from my smartwatch and they were able to see that the data reflected my health issues. On that basis they were able to issue a health certificate and our travel insurance paid our claim.

December 17, 2025
Unprompted review
Rated 5 out of 5 stars

Impressive

Needed a medical certificate for my none lucrative visa and was running out of time. Don't have to sit around waiting for an appointment -- everything was sorted online, and I had the certificate in the post the same day. really impressed.

September 18, 2024
Unprompted review
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Rated 5 out of 5 stars

Easy and convenient

Was in a bit of a rush to get a fit to fly certificate for a holiday, so I tried Merlin Health. Filled out a quick from online, and within a few hours, I had my fit to fly certificate! It was exactly what I needed for the airline. Super convenient and easy.

September 22, 2024
Unprompted review
Rated 5 out of 5 stars

Process was super simple

I was supposed to fly out to Spain for a family holiday, but I started feeling really unwell. I couldn’t get a GP appointment in time and was panicking about getting a certificate for my insurance claim. I found Merlin online, and honestly, I’m so glad I did! The whole process was super simple, and I got my certificate emailed to me the same day. It took so much stress off my shoulders. Definitely recommend if you're in a similar situation!

September 15, 2024
Unprompted review
Rated 5 out of 5 stars

Great thanks

Great customer service. I recommend

September 20, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for trusting us with your medical certificate and we're thrilled to hear you had a positive experience :)

Rated 5 out of 5 stars

Easy to use website

Easy to use website. Very straightforward process and prompt delivery of service.

Only minor feedback for improvement I would give is the letter content. The use of my name was used in every paragraph which kind of reduced the gravitas of the letter. Improvements could be made to the content to make it more professional. But everything else was absolutely great. Many thanks

September 11, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you so much for taking the time out to review our services :) Your feedback has been taken on board and we've sent it to our team to take into consideration for the future.

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Rated 5 out of 5 stars

Easy to use and saves a lot of Stress

Finding out only 4 days before a long haul flight that I needed not only my prescription notices but what conditions I had that meant I needed the medication, I had a panic, thinking of being on the phone forever to GP surgery and not getting a letter in time. I didn't even know there were online Doctors like this. Simple form to fill in with screenshot from my NHS app, photos of my medication and a photo of my passport, all really easy to upload. I pressed send at 10.15pm and by 11am I had documents I needed that were easy to print off.
No fuss no stress and at £45 not a bad price

September 9, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for your kind comments :) We're so glad we could help and hope you have an enjoyable trip!

Rated 5 out of 5 stars

Chickenpox Fit to Fly Certificate

My daughter was recovering from chickenpox and we required a Fit to Fly Certificate. They assessed my daughter's condition and issued us with the necessary Certificate within 2 hours of our application. Brilliant, prompt, cost effective service. Many thanks.

August 20, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for your kind words and we're thrilled to hear you had a positive experience :)

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Rated 5 out of 5 stars

Quick service

Quick turnaround at a reasonable price . Highly recommend on

July 22, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for your kind comments and we're thrilled to hear you had a positive experience :)

Rated 5 out of 5 stars

Fast quick and reliable

After trying to get my doctor to do this for us we were directed to this company, must say best thing ever they made the process easy and was a very fast turnaround would highly recommend.

July 22, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for your kind comments and we're thrilled to hear you had a positive experience :)

Rated 5 out of 5 stars

Simple & Efficient

Simple process, easy to upload photos and supporting documents. Fit to fly certificate arrived within a couple of hours. Wouldn't hesitate to use again.

July 17, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

We're thrilled to hear you had a positive experience for your fit-to-fly certificate and look forward to welcoming you back should you need us in the future :)

Rated 5 out of 5 stars

Effective and expeditious

Thank you for the speedy and effective service

June 3, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for kindly taking the time out to review our services and we're thrilled to hear you had a positive experience when applying for your medical certificate :)

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Rated 5 out of 5 stars

I had experience with child chickenpox…

I had experience with child chickenpox disease just one week before flight travel. According airline procedure, passenger must provide a Medical Certificate and Airline Form states child health status. Local UK Medical Centre refused to provide such documents. Merlin Health team response quick, was flexible on additional requests. Thank you Merlin Health for great service!

July 18, 2024
Unprompted review
Merlin Health logo

Reply from Merlin Health

Thank you for your kinds words and we're thrilled to hear you had a positive experience when applying for your chickenpox fit to fly medical certificate :)

Rated 5 out of 5 stars
Merlin Health logo

Reply from Merlin Health

Thank you for your kinds words and we're thrilled to hear you had a positive experience when applying for your medical certificate :)

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